Dissertations / Theses on the topic 'Packaging alimentare'
Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles
Consult the top 50 dissertations / theses for your research on the topic 'Packaging alimentare.'
Next to every source in the list of references, there is an 'Add to bibliography' button. Press on it, and we will generate automatically the bibliographic reference to the chosen work in the citation style you need: APA, MLA, Harvard, Chicago, Vancouver, etc.
You can also download the full text of the academic publication as pdf and read online its abstract whenever available in the metadata.
Browse dissertations / theses on a wide variety of disciplines and organise your bibliography correctly.
Tondini, Matteo. "Confronto di soluzioni di packaging alimentare nel nuovo contesto dell'economia circolare." Bachelor's thesis, Alma Mater Studiorum - Università di Bologna, 2021. http://amslaurea.unibo.it/24344/.
Full textCamorani, Marco. "Il PLA per applicazioni negli imballaggi per l'industria alimentare : analisi del packaging per il miele." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2017.
Find full textAndreoni, Veronica. "Applicazione di un sistema di gestione del rischio in un reparto di conversione materie plastiche destinate al contatto alimentare." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2017.
Find full textMaccaferri, Francesco. "Nuovi copolimeri triblocco biodegradabili a base di PLA per imballaggi alimentari." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2015. http://amslaurea.unibo.it/8617/.
Full textValli, Emanuele. "Progettazione, realizzazione e caratterizzazione funzionale di sorgenti di plasma atmosferico di non equilibrio a supporto di processi industriali di inattivazione microbica." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2017.
Find full textPiccioli, de Carolis Giorgio. "Nuovi copolimeri statistici a base di poli(butilene 2,5-furanoato): effetto della copolimerizzazione sulle proprietà chimico-fisiche, proprietà barriera e compostabilità." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2015. http://amslaurea.unibo.it/9320/.
Full textSekhniachvili, Elena. "Etude de la dimension éthique dans la communication du packaging des produits alimentaires." Thesis, Limoges, 2014. http://www.theses.fr/2014LIMO0078.
Full textThe present research is based on the hypothesis that the language use, considered to be as a social power and a tool to achieve pragmatic goals of the communication, requires the involvement of ethics aimed at regulating social interactions. This hypothesis predetermines the main research aim that consists of ethics analysis on a corpus of food packaging discourse. The question of social regulation is accomplished through the concept of value, central one in the problematics of ethics as the value is a spinning plate between meaning and action that guides human behavior and influences decision making. In summary, this work is dedicated to the study of values in all its aspects: i. value as a semantic component which impersonates the idea of the Good, ii . the manifestation of values in the speech which reflect social personal styles as world models at a cultural level, iii. values and their re-organization in the communication process with other people, iv. value as an action force and its conscious use by a discourse subject to express implication and perception of the obligations which form the basis of responsibility. The work studies the role of passions and emotions in the course of the act that weaken or strengthen the action force as well. This research also investigates the value in practical interactions; the value force is manifested in the interaction process between a set of practical situations; the interaction nature influences stability and equilibrium of situations thanks to providing the stability of links between participants of different practices
Monborren-Benabdillah, Linda. "Étude de l'évolution du ''smart packaging'' alimentaire et analyse des marchés des pays industrialisés : actualité et tendances." Thesis, Paris 4, 2015. http://www.theses.fr/2015PA040044.
Full textPackaging used to be a very common, unnoticed, everyday life object for food protection and transportation. It is now a whole scientific subject that evolves on a daily basis. Recently packaging has crossed a new threshold: it is no more a simple marketing tool. Today packaging acts as a food protector that prolongs the shelf life and provides information to manufacturers, distributors, and even consumers. In complete contradiction with all the legislation that defined it as an inert object, new packaging technologies are active and intelligent devices. However, what is called in Europe and the United States a new technology, has been marketed in Japan for decades. The challenge is to understand how and why Smart Packaging was so late to enter Europe and the US at a time when globalization in trade and communication are stronger than ever, and the race for innovation and new technologies is permanent. The main objective of this report is to give insights into today’s market stakes, its opportunities, major trends and short and long term evolution, as well as its growth potential and the major factors that influence it on one hand. On the other hand it provides analysis for the future and the viability of the new technologies in food and drink sectors on developed countries markets. To achieve these purposes, it is essential to give an overview of the existing technologies and applications and explain the stakes of using Smart Packaging, as well as innovation perspectives. Moreover, this projects highlights how the companies meet the challenge of developing marketing, exportation and risk strategies on a global market, whithin the boundaries of the regulatory frameworks and risks for the environment and the consumer
Teixeira, Silva Fernando. "Emballage intelligent : faisabilité de l’utilisation d’un biocapteur couplé à un tag RFID UHF pour le suivi de la température." Thesis, Montpellier, 2017. http://www.theses.fr/2017MONTT124/document.
Full textIntelligent packaging (IP) is an emerging technology based on the communication function of packages. Radio frequency Identification (RFID) is considered the most promising concept of IP. RFID refers to technologies and systems that use radio waves (wireless) to transmit and uniquely identify and/or track objects with accurate information in a real time.The present thesis is based on an innovative study of the electrical (capacitance) and dielectric properties (real permittivity and loss factor) of soybean isolated protein, gelatin and sodium caseinate aiming at their use as a sensor of temperature coupled with RFID tags. The environmental variables were temperature (range from 20°C up to 80°C) and humidity (90% RH) that are normally used for meat cooking. Gelatin was the most sensitive sensor. After this first part, several steps have been set up:• Analysing the impact of gelatin film thickness on electrical capacitance and the determination of several parameters such as sensitivity, hysteresis and repeatability;• The coating of gelatin on a RFID tag tested at 90% RH and variation of temperature (20°C up to 80°C) in a pilot condition. The impact on the reading range was analysed.The potential of gelatin as a sensor was demonstrated at thickness of 38 µm and 125 µm. For the first case, the capacitance was stable at 20°C up to 80°C and at Ultra High Frequency band (300-900 MHz). Sample with 125 µm has suffered the electro-thermal breakdown between 60-80°C. To overcome this phenomenon, 600 MHz was applied. A balance between thickness and frequency should be consider to increase the sensitivity that was 0.14 pF/°C (125 m at 600 MHz); this value was higher than 0.045 pF/°C (38 m at 868 MHz) influencing the results in the simulation of meat cooking. Reuse of the same sensor has led to mass loss reducing the sensitivity. The feasibility of gelatin sensor-enable RFID tag was demonstrated. The tag covered by gelatin film in the whole antenna was suitable because it was able to deliver different Theoretical Reading Range (TRR) (p<0.05) for 868 MHz, 915 MHz and 960 MHz. At this layout also, the TRR was the same (without hysteresis) for the rising and descending temperature at the critical zone (60°C- 80°C and 60°C-20°C) at 915 MHz. These promisor results open a window for new conception of temperature sensor based on biomaterial that confers advantages, such as low cost and eco-friendly property sought to be interfaced to passive RFID tags for intelligent packaging
Arienti, Luca. "Effetto di un packaging innovativo sulla qualità di nettarine." Bachelor's thesis, Alma Mater Studiorum - Università di Bologna, 2012. http://amslaurea.unibo.it/4083/.
Full textSilva, Mariana Rodrigues Ferreira da. "Active and intelligent bionanocomposites for food packaging." Master's thesis, Universidade de Aveiro, 2017. http://hdl.handle.net/10773/22400.
Full textA produção de plásticos, baseados no uso de combustíveis fósseis, está a aumentar e estima-se que esta tendência continuará no futuro com impactos ambientais consideráveis. Os bioplásticos são uma alternativa amiga do ambiente. Biopolímeros como quitosana já foram adotados com sucesso para produzir bioplásticos que agem como substitutos do plástico em embalagem. A quitosana foi selecionada devido às suas numerosas vantagens para embalagem alimentar, principalmente devido às suas atividades antioxidantes e antimicrobiana. Por outro lado, o dióxido de titânio foi selecionado como aditivo devido à sua capacidade de retirar oxigénio do ambiente e devido à possibilidade de poder ser facilmente funcionalizado para a formação de um sensor. Isto permitiria a formação de uma embalagem ativa e inteligente na proteção do alimento. Assim, nanopartículas homogéneas arredondadas e monofásicas de anatase de dióxido de titânio (TiO2) foram usadas para melhorar os filmes de quitosana, criando um bionanocompósito. Estas nanopartículas de TiO2 foram produzidas por síntese hidrotermal, tendo sido otimizadas as condições de síntese, como a temperatura e tempo, para selecionar as condições que originam as nanopartículas com as caraterísticas desejadas. As condições escolhidas para a produção do TiO2 foram 200 ºC e 2,5 h devido ao tamanho, dispersão e tipo de nanoparticulas de TiO2 produzidas. Os filmes de quitosana foram preparados com cerca de 9 mg de nanopartículas de TiO2. Para criar uma embalagem ativa e inteligente compostos fenólicos (principalmente antocianinas) de arroz preto (Oryza sativa L. Indica) foram adicionados para funcionalizar o TiO2 (4,1 mg de extrato por filme). Os filmes foram caracterizados em relação à sua atividade antioxidante, humidade, solubilidade, hidrofobicidade da superfície e propriedades mecânicas. Os melhores resultados foram obtidos nos filmes com nanopartículas e compostos fenólicos e foi demonstrado que a forma como cada componente é adicionado altera as suas propriedades. Os melhores resultados foram o aumento da atividade antioxidante, diminuição da solubilidade e da elasticidade, elongação e resistência à tração no filme composto por pigmento e TiO2,. No entanto nestes últimos três parâmetros, a sua diminuição pode ser um aspeto positivo ou negativo dependendo das propriedades desejadas para o filme e o produto alimentar a embalar
Plastic production based in fossil fuels is rising, and predictions supports it continuous and enhanced use, with consequent environmental damage. Bioplastics are an environmentally friendly alternative. Biopolymers as chitosan have already been successfully used to produce bioplastics that act as plastic substitutes in packaging. Chitosan was chosen for its numerous advantages for food packaging namely due to its antioxidant and antimicrobial activities. On the other hand, TiO2 was selected due to its oxygen scavenging ability and due to its possibility to be easily functionalised to create a sensor. This would allow the construction of an active and intelligent packaging for food protection. Thus, monophasic anatase homogeneous round-shaped nanoparticles of titanium dioxide (TiO2) were used as filler to improve the chitosan films, creating a bionanocomposite. These TiO2 nanoparticles were produced via a hydrothermal method and its synthesis was optimized testing various reaction times and temperatures to find the conditions that create TiO2 nanoparticles with the desired features. The conditions used for the chosen TiO2 were 200 ºC and 2.5 h due to the size, dispersion and TiO2 of the nanoparticles produced. The chitosan films were prepared with about 9 mg of TiO2 nanoparticles. To develop an active and intelligent food packaging, phenolic compounds (mainly anthocyanins) from black rice (Oryza sativa L. Indica) were used to functionalise the TiO2 (4.1 mg of extract in each film). The films were characterised regarding its antioxidant activity, humidity, solubility, surface hydrophilicity and mechanical properties. The best results were from films with both nanoparticles and phenolic compounds, and it was established that the order in which they are added alters its properties. The more notable improvements are an increase in antioxidant activity and a decrease in solubility, elasticity, elongation and tensile strength in the film containing pigment and TiO2. However, the reduction of the later three properties can either be positive or negative, it depends on desired properties for the film for a chosen food product
Mazzotti, Agnese. "Insetti penetratori di imballi: sistemi attuali di packaging e nuove prospettive." Bachelor's thesis, Alma Mater Studiorum - Università di Bologna, 2021.
Find full textMagalotti, Lorenzo. "Valutazione dell'effetto di packaging antimicrobici sulla shelf life e sicurezza di smoothies." Bachelor's thesis, Alma Mater Studiorum - Università di Bologna, 2018. http://amslaurea.unibo.it/16153/.
Full textBonvento, India. "Shelf life di ricotta vaccina confezionata in packaging a base di polibutilen-succinato." Bachelor's thesis, Alma Mater Studiorum - Università di Bologna, 2016. http://amslaurea.unibo.it/12135/.
Full textNasiri, Aida. "Development of Safe-by-Design Nano-composites for Food Packaging Application." Thesis, Montpellier, 2017. http://www.theses.fr/2017MONTT076.
Full textThe market of nanotechnologies is dominated by the food packaging area which amounts more than 20% of the total nanotechnologies market in 2015. However, the wide-scale use of nanomaterials raises important questions about environmental and safety issues that could hinder their development. In the case of plastics intended to be in contact with food, the risk of contamination concerns not only the nanoparticles but also all the chemical additives added during the material processing. The presence of nanoparticles is susceptible to modify the interactions between polymer and the additives with a possible change in their transport properties and therefore the food contamination.The present work aims at identifying the relationship between the structural characteristic and the transport properties (diffusivity and solubility) of nanoparticles and chemical additives incorporated in nanocomposites. In this regard, it is necessary to fill the gap of knowledge in 3D nanostructure characterization and a multi-scale modeling of mass transfer properties of nanocomposites in real usage conditions.In this way, polyethylene and nanoclay were selected based on the best compromise between real potential applications and the scientific knowledge previously published and eventually the nanocomposites were synthesized with LLDPE, Cloisite20 and a compatibilizer by melt intercalation method.The nanocomposite structure was characterized using TEM, X-ray nanotomography, TGA and XRD then submitted to migration tests undertaken in contact with different food simulants which represent various types of food (aqueous, acid, alcoholic) following the recommendation of the European regulation on the food contact material. To evaluate the positive or adverse effects of the nanomaterials on the contamination of the food by chemical additives which are usually incorporated with the plastic packaging, the virgin polymer and nanocomposite material were spiked with a mixture of the additives exhibiting various volatility, polarity and molecular weight. Then, the transport properties (i.e inertia) of nanocomposite structure was distinctively investigated on kinetic (apparent diffusion coefficient) and thermodynamic (partition coefficient) considerations.The results indicated that nanoclay addition in plastic materials favorably reduced the migration of additives by modifying both their diffusivity in the polymer and their partition between the polymer and the food simulant. However, while the partition coefficient of additives increases in nanocomposite in comparison to pure LLDPE for the samples in contact with all types of food simulants, the reduction of diffusion coefficient is significantly dependent on the nature of the food simulant in contact. Hence, it can be concluded that the major role in the migration of additives is not played by the imposed tortuosity path, but by the factors such as the affinity between the base polymer and simulants as well as the effects of simulants on swelling and crystallinity of the samples. Moreover, the effect of additive-related parameters and the structural parameters were assessed and put in perspective with their impact on the transport properties of nanostructures. Integrating the results of characterization and transfer properties led to an improved understanding of the influence of structure of nanocomposites on their mass transfer properties and therefore on the suitability of using them as food contact materials
Busolo, Pons María Antonieta. "Novel nanocomposites for active food packaging applications. Nuevos Nanocompuestos de Interés en Aplicaciones de Envasado Activo Alimentario." Doctoral thesis, Universitat Jaume I, 2013. http://hdl.handle.net/10803/669178.
Full textThe polymer nanocomposites, obtained by addition to polymers of nanofillers having at least one dimension in the nanometer scale, provide superior physical properties compared to pure polymer and those composites reinforced with micrometric fillers. The nanocomposites have been significantly studied and developed over the past two decades, being the food packaging one of the most interesting application regarding its technical and economic potential. The action of microorganisms and oxygen are the main causes of deterioration of the nutritional and organoleptic qualities of foods. The use of active packaging made from nanocomposites is an option to extend the shelf life of foods. The current PhD thesis contains the characterization of active nanoclays and the preparation of their correponding nanocomposites with antimicrobial, oxygen scavenging and antioxidant properties for their potential application in food packaging. Nanobiocomposites were prepared by incorporation of antimicrobial organomontmorillonites modified cationic and metallic silver in polylactide (PLA). The obtained materials not only showed bactericidal effectiveness against Staphylococcus aureus and Salmonella spp, which pathogenic microorganisms commonly found in contaminated food, but also improving of the water vapour barrier by virtue of the incorporation of the clay platelets. This effect was induced by the dispersion of the clay sheets in the polymeric matrix. The silver release assays in water showed values below the limits allowed by current european legislation.
Thomas, Fanny. "Complexité visuelle du packaging et évaluation du produit : le cas de la représentation des ingrédients dans le secteur alimentaire." Thesis, Lyon, 2017. http://www.theses.fr/2017LYSE3078.
Full textFood industrialization is a real advance for society and the consumer who is looking for ease of purchase. However, with several health crises, the consumer wants to be better informed and to control his product choice. In this way, manufacturers want to improve communication on their product through visual attributes of their packaging. Nevertheless, an information overload can make the packaging difficult to understand. As a result, this doctoral research focuses on the impact of the level of visual complexity of the packaging on the evaluation of the food product. This problem leads to three research questions successively adopting a holistic approach, then two analytical approaches to the packaging complexity considering the number of ingredients and their degree of similarity depending on the level of availability of cognitive resources. The influence of the level of complexity on the evaluation of the product is studied by means of seven studies with a mixed methodological approach, with self-declared, behavioral and implicit measures. This research highlights the combination of a simple packaging with a healthy food product, valued according to the nutritional benefit and the quality ingredients in the product composition. In addition, it emphasizes the combination of a complex packaging with a better taste product that facilitates the formation of mental imagery taste depending on the degree of similarity of visual elements in the analytical approach of the design complexity and the cognitive resources level. Keywords: complexity, simplicity, packaging design, ingredients, healthy food, taste, purchase intent, cognitive load
Para, Logan. "Il miglioramento continuo nel trattamento e confezionamento di prodotti alimentari: il caso Tetra Pak." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2016.
Find full textMadene, Atmane. "Etude des transferts d'arômes encapsulés dans une matrice alimentaire type génoise." Thesis, Vandoeuvre-les-Nancy, INPL, 2006. http://www.theses.fr/2006INPL076N/document.
Full textThis study deals with transfer of viennoiserie aroma encapsulated in a acacia gum - maltodextrines matrix and incorporated in a packaged sponge cake (plastic and treated-paper), under controlled storage conditions (temperature and relative humidity). The process of encapsulation used in this work is freeze-drying. The physicochemical properties of the volatiles molecules influence their retention in the matrix. Thus, the hydrophobic molecules with high molecular weight are more retained. The incorporation of capsules in the sponge cake matrix influences the physical properties of food matrix (color and texture) and supports the formation of a crust which acts as a barrier in the flavour transfer. It was noted that encapsulation contributed in retaining flavour compounds during the storage of packaged sponge cake. Also, the type of packaging can influence the loss of flavour in the headspace between sponge cake and packaging. Indeed, plastic packaging offers a better conservation of volatiles molecules compared to treated-papers
Jamshidian, Majid. "Inclusion et libération de molécules antioxydantes dans un emballage à base d’Acide Poly Lactique en contact alimentaire." Thesis, Vandoeuvre-les-Nancy, INPL, 2011. http://www.theses.fr/2011INPL109N/document.
Full textActive packaging generates longer shelf-life foods, lower usage of additives and preservatives in food formulations, higher protection of flavors and higher food qualities. Antioxidant controlled release from packaging provides longer food stability (reduced lipid oxidation) by continuously liberating antioxidants at food surface. The overall objective of the present work was to study the suitability of Poly Lactic Acid (PLA, biodegradable polymer industrially produced) as active packaging. We chose various synthetic or natural antioxidants including alpha-tocopherol, Ascorbyl palmitate, BHA, BHT, Propyl gallate and TBHQ to produce the antioxidant packaging. Firstly, the mode of incorporation of these antioxidants in PLA matrix and also their potential effects on diverse structural, thermal, mechanical and barrier properties of PLA were investigated. The release study of antioxidants was accomplished from PLA-antioxidants films into three food simulants, i.e. 95%, 50%, and 10% ethanol at two temperatures (20°C and 40°C). The results showed that PLA has the capability for being as a suitable carrier for antioxidant-active packaging for some food products. Finally, a mathematical model based on quantitative structure property relationships (QSPR) was developed to predict antioxidant diffusion in food simulant/ active packaging system
Zhu, Yan. "Rational design of plastic packaging for alcoholic beverages." Thesis, Université Paris-Saclay (ComUE), 2019. http://www.theses.fr/2019SACLA020.
Full textThe view of plastic food packaging turned from useful to a major source of contaminants in food and an environmental threat. Substituting glass by recycled or biosourced plastic containers reduces environmental impacts for bottled beverages. The thesis developed a 3D computational and optimization framework to accelerate the prototyping of eco-efficient packaging for alcoholic beverages. Shelf-life, food safety, mechanical constraints, and packaging wastes are considered into a single multicriteria optimization problem. New bottles are virtually generated within an iterative three steps process involving: i) a multiresolution [E]valuation of coupled mass transfer; ii) a [D]ecision step validating technical (shape, capacity, weight) and regulatory (shelf-life, migrations) constraints; iii) a global [Solving] step seeking acceptable Pareto solutions. The capacity to predict shelf-life of liquors in real conditions was tested successfully on ca. 500 hundred bottle min iatures in PET (polyethylene terephthalate) over several months. The entire approach has been designed to manage any coupled mass transfer (permeation, sorption, migration). Mutual sorption is considered via polynary Flory-Huggins formulation. A blob formulation of the free-volume theory of Vrentas and Duda was developed to predict the diffusion properties in glassy polymers of water and organic solutes in arbitrary polymers (polyesters, polyamides, polyvinyls, polyolefins). The validation set included 433 experimental diffusivities from literature and measured in this work. The contribution of polymer relaxation in glassy PET was analyzed in binary and ternary differential sorption using a cosorption microbalance from 25 to 50°C. Part of the framework will be released as an open-source project to encourage the integration of more factors affecting the shelf-life of beverages and food products (oxidation kinetics, aroma scalping)
Essabti, Fatima. "Mise en œuvre de nanocomposites à matrice chitosane pour renforcer l’imperméabilité aux gaz de films d’emballage alimentaire." Thesis, Paris, ENSAM, 2018. http://www.theses.fr/2018ENAM0059/document.
Full textIn order to protect food, the packaging industry performs a film coating with a very thin polymer layer to increase its gas barrier properties. The major problem of these coatings is that they are generally made of poly(vinylidene chloride) which leads to a toxic gas production during incineration. In view of the rapid change of the global environmental restrictions that become quite stringent, bioplastics seem promising alternatives. In this context, this thesis deals with a fundamental study of poly(ethylene terephthalate) films coated with a polysaccharide: chitosan. Chitosan offers good barrier properties in dry conditions. However, its application in the packaging is limited because of its hydrophilic character. Therefore, the main goal of our work is on one hand to enhance the dry barrier properties of the material through adding nanoclays and on the other hand to improve its resistance to moisture by incorporating palmitic acid by grafting it to the chitosane backbone. The incorporation efficiency of vermiculite was confirmed by DLS, DVS and XRD. A barrier improvement factor (BiF) of about 100 for helium and more than 10 for dioxygen with the addition of 50% vermiculite was obtained under dry conditions. The grafting of palmitic acid has been confirmed by FTIR spectroscopy, ATG, DSC and RMN. The results of helium permeability measurements showed an improvement of the barrier factor (BIF) of 2 in the case of a chitosan-grafted-palmitic acid layer with 60 weight% of vermiculite compared to the uncoated PET at 98% RH
Ramos, Sandra Isabel Charneca. "Comportamento do consumidor cego : a importância da escrita braille em produtos alimentares." Master's thesis, Instituto Superior de Economia e Gestão, 2015. http://hdl.handle.net/10400.5/11081.
Full textO consumidor cego enfrenta vários obstáculos no dia a dia, especialmente quando tem de ir a supermercados comprar produtos alimentares. Atualmente, poucos são os produtos alimentares com rótulos em braille com informações suficientes para que estes consumidores tenham alguma autonomia no momento da escolha e compra dos produtos. Este estudo procura compreender de que forma a escrita braille nas embalagens dos produtos alimentares influencia o comportamento de compra do consumidor cego e de que forma o consumidor responde à sua presença ou ausência. Pretende-se assim investigar se a existência de braille nos produtos alimentares potencia a busca de informação e se o consumidor cego considera importante o marketing que é feito aos produtos alimentares. O estudo empírico foi de natureza qualitativa, tendo sido realizadas entrevistas semi-estruturadas, testes de embalagem e observação de situações de compra. Os resultados obtidos revelam a importância dos rótulos em braille nas embalagens de produtos alimentares. As embalagens com rótulos em braille influenciam o comportamento do consumidor cego. Este, ao ter acesso a mais informação, tenderá a ter uma maior predisposição para procurar e experimentar novos produtos, tomando decisões de compra mais conscientes e fundamentadas. A sua vulnerabilidade no supermercado e em casa pode ser reduzida, levando a um aumento de autonomia. As conclusões enfatizam a importância de produtores, retalhistas e marketers estarem atentos às especificidades do consumidor cego, sendo a escrita braille fundamental para comunicar o produto a este consumidor e assim, influenciar seu o comportamento de compra.
Blind consumer faces several obstacles on daily basis especially when going to supermarkets to buy groceries. Nowadays braille labeling is scarce in food products and doesn't have enough information reducing blind consumer's autonomy while choosing and buying such products. This study addresses the impact of imprinting braille on the packaging of food products and tries to understand such influence on blind consumer buying behavior and how it responds to braille presence or absence. Therefore, it aims to investigate if the existence of braille in food products enhances the search for information and if the blind consumer considers important the marketing that is done to food products. The empirical study was qualitative, using semi-structured interviews, packaging tests and observation of buying behavior. The results obtained reveal the importance of braille imprinted labels on food packaging. Blind consumer behavior is influenced by packages with labels with braille. These, by having access to more information, will tend to have a greater predisposition to search and try new products, taking more informed and reasoned purchase decisions. The vulnerability in supermarket and at home can be reduced, leading to an increased autonomy. Findings emphasize the importance of producers, retailers and marketers being aware of the specifics of the blind consumer, since braille imprinting is important to communicate products to consumers and influences their buying behavior.
De, Luca Paola. "L'importanza dell'Atmosfera Modificata nel Confezionamento di Frutta e Verdura Minimamente Processate." Bachelor's thesis, Alma Mater Studiorum - Università di Bologna, 2019. http://amslaurea.unibo.it/19261/.
Full textDall'Osso, Nicolò. "Shelf Life Assessment of Fresh Poultry Meat Packaged in Novel Bionanocomposite of Chitosan Incorporated with ZnO nanoparticles synthesized using food industry by-products." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2020. http://amslaurea.unibo.it/20653/.
Full textIssart, Ambre. "Potentiel d'antioxydants naturels pour la stabilisation de polymères pour emballages alimentaires et le développement de méthodes pour évaluer leur migration." Thesis, Pau, 2019. http://www.theses.fr/2019PAUU3019.
Full textPlastic packagings are notorious for the increased pollution they cause. The direct effects on humans are mainly due to the migration of compounds from plastic to the foods it contains. These compounds have various origins: additives, impurities, degradation products, uncontrolled reactions… For lack of being able to stop this migration, we chose to take advantage of it with new materials, called active materials. The objectives of these materials are to extend the shelf life of foods through a so-called “positive” migration. However, the use of natural additives is complicated due to their poor resistance to temperature. The problem is therefore to find natural additives resistant to the polymers’ extrusion temperatures, while stabilizing them. It is in this context that my thesis topic was set up within the Foodyplast project (POCTEFA). The thesis is divided into four parts. A state of the art is first presented. The following chapter details the various techniques used to produce and characterize our materials and the development of a new method based on mass spectrometry (LESA-MS). The third chapter discusses in detail the implementation of new materials stabilized by natural additives and their physico-chemical characterization. We have shown that the joint use of these additives (alpha tocopherol/ascorbic acid and alpha-tocopherol/tannins) significantly increases the stabilization effect on the polymer matrix (patented innovation). These materials have also shown to be recyclable up to 9 times without degradation. Finally, the last chapter potential of the new LESA-MS method (developed in Chapter 2) for its efficient of our materials. This method is compared to that of the current European standard and opens up real prospects for performing analyses in polymers for different applications
Garcia, Contreras Antonio. "Foodyplast, des emballages plastiques alimentaires avec des additifs naturels et recyclables." Thesis, Perpignan, 2019. http://www.theses.fr/2019PERP0020/document.
Full textPlastics have now invaded our daily lives. They are the symbol of the consumer society, because they are considered a non-noble material: consumers equate it with a disposable product after use. Since plastics are not degradable, they represent a real danger to the environment, fauna and flora.The objective of this thesis work was to develop in collaboration with the Institute of Analytical Sciences and Physico-Chemistry for Environment and Materials (Pau University) new formulations with natural additives to produce resistant and recyclable plastics. Two types of resins were used: isotactic polypropylene (i-PP) and low density polyethylene (LDPE). Natural antioxidants such as ascorbic acid, alpha-tocopherol and flaxseed oil were tested and encapsulated to improve their resistance to degradation. Thermal and rheological characterizations of resins have shown superior qualities to current commercial resins. We were able to demonstrate that the plastics obtained could be recycled 9 times without losing their characteristics. Tests with trays made with the developed products are underway to validate the developed models
Banús, Paradell Núria. "New solutions to control robotic environments: quality control in food packaging." Doctoral thesis, Universitat de Girona, 2021. http://hdl.handle.net/10803/673469.
Full textEls sistemes de visió per computador i les tècniques d’intel·ligència artificial són dues àrees de recerca actives en el context de la Indústria 4.0. La seva combinació permet la reproducció de procediments humans millorant al mateix temps el rendiment dels processos. Malgrat això, per aconseguir l’automatització completa desitjada, hi ha la necessitat de noves aplicacions capaces de cobrir el màxim d’escenaris i processos industrials possibles. Una de les àrees que necessita més investigació i desenvolupament és el control de qualitat dels envasos d’aliments, i més concretament, el control del tancament i del segellat d’envasos termoformats. Les necessitats en aquesta àrea van ser identificades per TAVIL que, amb col·laboració amb GILAB, van proposar un Doctorat Industrial per investigar, desenvolupar i integrar en escenaris reals nous mètodes per millorar l’etapa d’envasat de la indústria alimentària mitjançant sistemes de visió per computador i tècniques d’intel·ligència artificial. En el context d’aquest Doctorat Industrial, s’han seguit dues línies d’investigació que es diferencien en el nivell en el qual estudien el problema. La primera línia es basa en el control de qualitat d’envasos d’aliments, mentre que la segona es basa en el control eficient de sistemes de visió per computador en escenaris industrials
Programa de Doctorat en Tecnologia
Rocca, Smith Jeancarlo Renzo. "A contribution of understanding the stability of commercial PLA films for food packaging and its surface modifications." Thesis, Bourgogne Franche-Comté, 2017. http://www.theses.fr/2017UBFCK004/document.
Full textPoly(lactic acid) (PLA) is a biodegradable and renewable polyester, which is considered as the most promising eco-friendly substitute of conventional plastics. It is mainly used for food packaging applications, but some drawbacks still reduce its applications. On the one hand, its low barrier performance to gases (e.g. O2 and CO2) limits its use for applications requiring low gas transfer, such as modified atmosphere packaging (MAP) or for carbonate beverage packaging. On the other hand, its natural water sensitivity, which contributes to its biodegradation, limits its use for high moisture foods with long shelf life.Other biopolymers such as wheat gluten (WG) can be considered as interesting materials able to increase the PLA performances. WG is much more water sensitive, but it displays better gas barrier properties in dry surroundings. This complementarity in barrier performances drove us to study the development of multilayer complexes PLA-WG-PLA and to open unexplored application scenarios for these biopolymers.This project was thus intended to better understand how food components and use conditions could affect the performances of PLA films, and how these performances could be optimized by additional processing such as surface modifications (e.g. corona treatment and coatings).To that aim, three objectives were targeted:- To study the stability of industrially scale produced PLA films in contact with different molecules (CO2 and water) and in contact with vapour or liquid phases, with different pH, in order to mimic a wide range of food packaging applications.- To better understand the impact of some industrial processes such as corona or hot press treatments on PLA.- To combine PLA with WG layer to produce high barrier and biodegradable complexes.Different approaches coming from food engineering and material engineering were adopted. PLA films were produced at industrial scale by Taghleef Industries with specific surface treatments like corona. Wheat gluten films, coatings and layers were developed and optimized at lab scale as well as the 3-layers PLA-WG-PLA complexes. Different technologies able to mimic industrial processes were considered such as hot press, high pressure homogenization, ultrasounds, wet casting and spin coating. The physical and chemical properties of PLA films were then studied at the bulk and surface levels, from macroscopic to nanometer scale. The functional properties like permeability to gases (e.g. O2 and CO2) and water, gas and vapour sorption, mechanical and surface properties were also investigated.Exposed to CO2, PLA films exhibited a linear sorption behaviour with pressure, but the physical modifications induced by high pressure did not affect its use for food packaging. However, when exposed to moisture in both liquid and vapour state (i.e. environments from 50 to 100 % relative humidity (RH)), PLA was significantly degraded after two months at 50 °C (accelerated test) due to hydrolysis. This chemical deterioration was evidenced by a significant decrease of the molecular weight, which consequently induced a loss of transparency and an increase of the crystallinity. The hydrolysis was accelerated when the chemical potential of water was increased, and it was surprisingly higher for vapour compared to liquid state. In addition, pH did not affect the rate of hydrolysis.Knowing much better the limitation of PLA films, the challenge was to improve its functional properties by combining them with WG, as a high gas barrier bio-sourced and biodegradable polymer. The use of high pressure homogenization produced homogeneous WG coatings, with improved performances. This process was thus selected for making 3 layer complexes by assembly of a wheat gluten layer between two layers of PLA, together with corona treatment and hot press technologies.Corona treatment applied to PLA physically and chemically modified its surface at the nanometer scale (...)
I materiali plastici convenzionali trovano impiego in tutti campi della nostra vita, specialmente nel settore del packaging alimentare, ed in seguito all’utilizzo contaminano e danneggiano il nostro ecosistema. Materiali plastici derivanti da risorse naturali e biodegradabili, come acido polilattico (PLA), sono attualmente disponibili sul mercato anche se caratterizzati da performances inferiori.Questo progetto di dottorato è mirato 1) allo studio della stabilità di film di PLA a varie condizioni di stoccaggio come temperatura, umidità relativa, pH, o esposizione a vapori o gas; 2) a comprendere meglio le influenze di alcuni processi industriali come trattamento corona e hot press nelle proprietà dei film di PLA; 3) a sviluppare complessi multistrato tra film di PLA e di glutine che abbiano proprietà barriera più elevate rispetto ai singoli film.Gli imballaggi a base di PLA sono stati prodotti da Taghleef Industries, produttore leader nel settore e dotato di infrastrutture atte ai trattamenti di modificazione di superfice come il trattamento corona. I film a base di glutine e i coatings sono stati sviluppati e ottimizzati su scala di laboratorio, così come i complessi trilaminari PLA-glutine-PLA.Le proprietà fisiche e chimiche dei film di PLA sono state investigate a livello di superficie, così come a livello di bulk. Diverse tecniche analitiche, provenienti dal campo delle scienze dei materiali e delle scienze degli alimenti, sono state adottate in questo progetto di dottorato come calorimetria differenziale a scansione (DSC), termogravimetria (TGA), cromatografia di esclusione molecolare (SEC), microscopia a forza atomica (AFM), microscopia elettronica a scansione (SEM), spettrofotometria infrarossa a trasformata di Fourier in riflettanza totale attenuata (ATR-FTIR) e spettroscopia fotoelettronica a raggi X (XPS).Le proprietà funzionali come le permeabilità al vapore acqueo (H2O), all’ossigeno (O2), al diossido di carbonio (CO2) o all’elio (He) sono state investigate, cosi come l’assorbimento di gas e/o vapori, le proprietà meccaniche e le proprietà di superfice.Nonostante i film di PLA assorbano linearmente CO2 a pressioni crescenti, l’assorbimento di tale gas è ridotto a basse pressioni in modo da non modificare le sue proprietà fisiche – come contrariamente osservato quando il PLA è esposto a CO2 ad alte pressioni – e da non influenzare negativamente il suo utilizzo come imballaggio alimentare. Ad ogni modo, quando i film di PLA sono esposti ad ambienti umidi, o quando sono immersi in acqua liquida, sono significativamente degradati per idrolisi dopo due mesi di stoccaggio a 50 °C (test accelerato). Questo deterioramento chimico è stato evidenziato da una significativa riduzione del peso molecolare del PLA che, conseguentemente, induce una sua perdita di trasparenza e ne incrementa la sua cristallinità. Inoltre, è stato evidenziato che il pH non influenza la velocità di idrolisi. Quest’informazione ha importanza pratica per possibili utilizzi di PLA come imballaggio di alimenti ad alta umidità.Il glutine è stato scelto per le sue alte proprietà barriera, quando è protetto da ambienti ad alta umidità. Si è visto che l’incorporazione di lipidi non porta con sé grandi miglioramenti nelle performances dei film a base di glutine. Invece, l’utilizzo della tecnologia di omogeneizzazione ad alte pressioni permette una migliore dispersione del glutine, ottenendo film più omogenei e con migliori proprietà funzionali. Questa tecnologia è stata quindi scelta per produrre i complessi multistrato, intercalando i film di glutine tra due film di PLA, usando il trattamento hot press (10 MPa, 130 °C, 10 min). Si è osservato che il trattamento hot press modifica le proprietà dei film di PLA, di glutine e dei film multistrato Hot press induce cristallizzazione in PLA, e conseguentemente aumenta le sue proprietà barriera complessive, approssimativamente al 40 % all’acqua e al 60 % all’ossigeno (...)
Los materiales plásticos tradicionales son utilizados en todos los campos de nuestra vida y en particular modo como embajales de productos alimenticios; los cuales después de ser utilizados contaminan y dañan nuesto medio ambiente. Materiales plásticos derivados de recursos naturales y biodegradables, como el ácido poliláctico (PLA) se encuentran actualmente disponibles en el mercado a pesar de sus menores performances. Este proyecto de doctorado está orientado 1) al estudio de la estabilidad de películas de PLA bajo diferentes condiciones como temperatura, humedad relativa, pH o exposición a vapores o gases, 2) comprender los efectos en las propiedades de las películas de PLA de algunos procesos industriales como el tratamiento corona y hot press, 3) desarrollar complejos multicapas de PLA y gluten que tengan propiedades barrera mejores que las de las películas individuales.Los embalajes a base de PLA han sido producidos por Taghleef Industries, productor líder en el sector y dotado de las infraestructuras industriales adaptadas a los tratamientos superficiales como el tratamiento corona. Las películas de gluten y los coatings han sido desarrollados a escala de laboratorio, así como los complejos tricapa PLA-gluten-PLA.Las propiedades físicas y químicas de las películas de PLA han sido investigadas a nivel de superficie así como a nivel de bulk. Diferentes técnicas de análisis, frecuentemente utilizadas en los campos de las ciencias de los materiales y de las ciencias de los alimentos, han sido empleadas en este proyecto como calorimetría diferencial de barrido (DSC), análisis termogravimétrico (TGA), cromotagrafía de exclusión por tamaño (SEC), microscopía de fuerza atómica (AFM), microscopía electrónica de barrido (SEM), espectroscopía de infrarrojos por transformada de Fourier con reflectancia total atenuada (ATR-FTIR) y espectroscopía fotoelectrónica de rayos X (XPS).Las propiedades funcionales de los embalajes como las permeabilidades al vapor de agua, al oxígeno (O2), al dióxido de carbono (CO2) o al helio (He) han sido investigadas, asi como la absorción de gases/vapores, las propiedades mecánicas y las propiedades superficiales. A pesar de que las películas de PLA absorven linealmente CO2 a presiones mayores, la absorción del gas es reducida a bajas presiones y no modifica las propiedades físicas del PLA, como contrariamente sucede cuando el PLA es expuesto a altas presiones de CO2. Por lo tanto, su influencia en las propiedades funcionales del PLA es mínima en las normales aplicaciones alimentarias. De todos modos cuando los embalajes de PLA son expuestos a ambientes húmedos o cuando son sumergidos en agua, procesos de hidrólisis los degradan significativamente después de dos meses de conservación a 50 °C (test acelerado). Este deterioramiento químico ha sido evidenciado por una significativa reducción del peso molecular del PLA, que en consecuencia induce una pérdida de transparencia y un aumento de su cristalinidad. Además, se ha observado que el pH no influye en la velocidad de hidrólisis. Esta información tiene una importancia práctica para posibles usos del PLA como embalajes de alimentos a alta humedad. El gluten ha sido elegido por sus altas propiedades barrera cuando es protegido de ambientes a alta humedad. La incorporación de lípidos en las películas de gluten no han mejorado sus performances. Pero la tecnología de la homogenización a altas presiones ha permitido mejorar la dispersión del gluten, obteniendo películas más homogéneas y con mejores propiedades funcionales. Esta tecnología ha sido, por lo tanto, elegida para producir los complejos multicapa, intercalando las películas de gluten entre dos de PLA, utilizando el tratamiendo hot press (10 MPa, 130 °C, 10 min) (...)
Gadani, Elisa. "Le proteine del siero: un sottoprodotto dalle grandi potenzialità salutistiche." Bachelor's thesis, Alma Mater Studiorum - Università di Bologna, 2019. http://amslaurea.unibo.it/18707/.
Full textMazzoni, Mattia Edmondo. "Effetti di un sistema innovativo di confezionamento e conservazione sulla qualita dell'olio extra vergine di oliva." Bachelor's thesis, Alma Mater Studiorum - Università di Bologna, 2016. http://amslaurea.unibo.it/10186/.
Full textSgarra, Laura. "Aspetto visivo delle carni confezionate." Bachelor's thesis, Alma Mater Studiorum - Università di Bologna, 2021.
Find full textImran, Muhammad. "Enrobages actifs contenants des peptides antimicrobiens nano-vectorisés." Thesis, Vandoeuvre-les-Nancy, INPL, 2011. http://www.theses.fr/2011INPL026N/document.
Full textFood nanotechnology has the potential to improve food safety and bio-security, food processing, food packaging and functional ingredients. Nano-encapsulation of active agents is an innovative concept to protect them against possible denaturation during processing and storage. The overall objective of the present work was to optimize and develop fluorescent labeling and encapsulation of nisin for molecular transfer study in different packaging based on biopolymers and in the food. Nanoencapsulation of nisin in different nanoliposomes by using continuous cell disruption system (CCDS) has provided an innovative method for nano-delivery systems fabrication. Incorporation of nisin in nano-emulsion form (encapsulated and free) can possibly be an effective approach to control pathogen without compromising the basic physico-chemical attributes of composite HPMC coatings. The fluorescently labeled nisin Z prepared had a molecular weight of 3717.3 Da. Confocal microscopic studies demonstrated the interaction of nisin with the bacterial membranes at the cell-division sites as possible mechanism of action against food borne pathogen. HPMC, CTS, SC and PLA packaging bio-membranes act as a reservoir and progressively release nisin to sustain a constant inhibitory effect. Choice of biopolymer is significant in providing requisite bioavailability of antimicrobial compounds at exterior surface and inside the food system. Based on the present study results, the emerging revolution concerning food safety through packaging possibly will rely on « 3-BIOs » blend with nanotechnology, which refers to Bioactive, Biodegradable and Bio-nanocomposite
Figueroa, López Kelly Johana. "Biodegradable Mono and Multilayer Materials with Antimicrobial Capacity Based on Circular Bioeconomy of Application Interest in Food Packaging." Doctoral thesis, Universitat Politècnica de València, 2021. http://hdl.handle.net/10251/168439.
Full text[CA] L'envasament actiu és una de les tecnologies emergents més rellevants de la indústria alimentària. El seu objectiu és interactuar amb l'espai de cap de l'envàs per controlar les reaccions enzimàtiques, químiques, físiques i microbiològiques que deterioren els aliments per mitjà de l'absorció o alliberament. L'actual tesi doctoral tracta originalment de el desenvolupament i la caracterització d'estructures d'envasat d'aliments actives i biodegradables mono i multicapa basades en materials de polihidroxialcanoatos (PHA) electroestirados derivats d'estratègies de bioeconomia circular. Per tal de dotar amb propietats actives dels materials d'envasat, es van incorporar als PHA olis essencials, extractes naturals, nanopartícules metàl·liques o combinacions dels mateixos mitjançant electrospinning de solucions. Les fibres resultants de PHA per electrospinning es recocieron per obtenir monocapes contínues que, posteriorment, es van combinar amb pel·lícules de polímers biodegradables foses, bufades o foses amb dissolvents i / o amb revestiments de barrera de nanocristalls de cel·lulosa bacteriana (CNC) per desenvolupar nous sistemes multicapa amb propietats antimicrobianes i de barrera. Aquests sistemes multicapes basats en PHA van presentar un bon rendiment tèrmic i mecànic, així com altes propietats de barrera als vapors i gasos. Les pel·lícules actives també van mostrar millors propietats antioxidants i una alta activitat antimicrobiana contra bacteris transmeses pels aliments tant en sistemes oberts com, el que és més important, en sistemes tancats, que poden imitar les condicions d'envasament en casos reals. Per tant, els materials i prototips desenvolupats poden ser molt prometedors com materials d'envasat, per constituir safates, flow packs i tapes, sent completament renovables i també biodegradables, amb la capacitat potencial final d'augmentar tant la qualitat, com la seguretat de els productes alimentaris en el nou context de l'Bioeconomia Circular.
[EN] Active packaging is one of the most relevant emerging technologies in the food industry. It aims to interact with the packaging headspace to control the enzymatic, chemical, physical, and microbiological reactions that deteriorate food through scavenging or releasing means. The current PhD thesis originally deals with the development and characterization of mono and multilayer active and biodegradable food packaging structures based on electrospun polyhydroxyalkanoates (PHA) materials derived from circular bioeconomy strategies. In order to provide the packaging materials with active properties, essential oils, natural extracts, metallic nanoparticles or combinations thereof were incorporated into PHA by solution electrospinning. The resultant electrospun PHA mats were annealed to obtain continuous monolayers that were, thereafter, combined with cast-extruded, blown or solvent-casted biodegradable polymer films and/or barrier coatings of bacterial cellulose nanocrystals (CNCs) to develop novel multilayer systems with antimicrobial and barrier properties. These PHA-based multilayers systems presented good thermal and mechanical performance as well as high barrier properties to vapors and gases. The active films also showed improved antioxidant properties and high antimicrobial activity against food-borne bacteria in both open and, more importantly, closed systems, which can mimic real case use packaging conditions. Therefore, the here-developed materials and prototypes can be very promising as packaging materials, to constitute trays, flow packs and lids, being completely renewable and also biodegradable, with the final potential capacity to increase both quality and safety of food products in the new Circular Bioeconomy context.
Al programa Santiago Grisolía de la Generalitat Valenciana (0001426013N810001A201) por concederme la beca Predoctoral. Al proyecto EU H2020 YPACK “High Performance Polyhydroxyalkanoates Based Packaging to Minimise Food Waste” (Grant agreement 773872) de la Comisión Europea. Al proyecto RTI2018-097249-B-C21 financiado por el Ministerio de Ciencia e Innovación de España. A la Unidad Asociada IATA-UJI en “Polymer Technology”.
Figueroa López, KJ. (2021). Biodegradable Mono and Multilayer Materials with Antimicrobial Capacity Based on Circular Bioeconomy of Application Interest in Food Packaging [Tesis doctoral]. Universitat Politècnica de València. https://doi.org/10.4995/Thesis/10251/168439
TESIS
Ludosky, Daliena. "Emballages Légers en bois : Etude de la migration des molécules organiques du bois vers l'aliment." Thesis, Reims, 2015. http://www.theses.fr/2015REIMS008.
Full textFood packaging has existed for millennia; ever since man wished to transport solid or liquid foods that were gathered previously. As in the case most materials, wood could be a source of contamination by chemical or biological products. To date, there are no studies available that assess the migration potential of wood components in to food. Food in contact with materials, like wood, is subject to the European Regulation (EC) 1935/2004. In contrast to other materials, there is no specific directive for wooden food contact packaging. In France, the only specific regulation concerning "wood" dates from November 1945 and is very underdeveloped. This thesis aims to study various factors that influence the migration of organic compounds from wood to food when in direct or indirect contact with one another. The final outcome will be a simple methodology that can be applied to industrial packaging. At the national level, this innovative project is in response to the needs of both the French health authorities and the French wood packaging industry. And provide the information necessary to update the information contained in "wood material No. 2012-93” which will, in turn, give the food industry an analytical method and a point of reference
Ertus, Pascale. "Mesure des dimensions du terroir et influence sur la qualité perçue et sur les intentions du consommateur vis-à-vis du produit alimentaire et spécificités pour le produit vin." Thesis, Lorient, 2019. http://www.theses.fr/2019LORIS525.
Full textThe purpose of this research is to identify the informational contents that carry the evocation of the terroir in order to consider their effects on the perception of quality and consumer’s intentions for food products. Although regularly mobilized by the professional sector, this concept was neither consensual nor well- defined from the consumer’s point of view. The prerequisites of our research, representing a first contribution, was to specify the area, the dimensions and the product of the terroir in the food field. From then on, we constructed a psychometric scale of perceived terroirity measure. Consisting of 6 dimensions and 23 items, it allows to measure the characteristics associated with the terroir by the consumer. The second contribution of our research is to assess the effects of this global construct and of each of its dimensions on the perceived quality and on the consumer’s intentions for the food product of the terroir. The third contribution is to have been able to identify the variables moderating significant to be tested in future researches. Wine is a specific product within the French food sector but it is also the first product evocated when consumers think of local products. The fourth contribution was to replicate all the investigative work by applying it to the case of wine. In addition to a different structuring of the dimensions of perceived terroirity, the results indicate differences in terms of effects and moderating variables for wine (level of expertise, knowledge and interest in the product). Through a mixed approach with, on the one hand, semi-structured qualitative interviews with respondents belonging to all French regions, and on the other hand, two surveys in opinion of 1015 consumers in France, this research relies both on the use of innovative research tools in marketing (ADT software "Le Trameur", Macro Process of Hayes, 2013), as well as on robust tools and methods known (AFE, AFC, structural equations models). In view of the demonstrations of increased efforts intentions, monetary and behavioral, for product of terroir, the contributions of the research leads to obtain a clarified base for the actors of the food chain to guide their actions as strategic and communicational. At the same time, this almost systematic trust attributed to the terroir’s mention allows to open the debate on the security of the guarantees and the legitimacy of the commercial affirmations. Faced with the profusion of evocations and terminologies referring to infraregional territorial anchorage, it is a question of considering public policies of protection and information of the consumer to avoid the possibility of excessive use of the term "terroir"
Jacquot, Charlotte. "Vieillissement des bio-polymères : étude structurale et fonctionnelle." Thesis, Université de Lorraine, 2013. http://www.theses.fr/2013LORR0293/document.
Full textToday's increased environmental concerns and the growing questions about disposal management are contributing to growth in biopolymer industry. These materials are used in various fields such as pharmaceutic, bioengineering or tissue engineering as cell support, food formulation or packaging. In spite of a positive perception of biopolymers to improve environmental issues, biopolymers properties remain unknown, even though their biodegradability is well documented. Here we consider the influence of aging in climatic chamber on different biopolymers (HPMC, Chitosan and PLA) and in to what extent it could modify their structure and properties. Moreover, considering the opportunity for theses materials to be used as food packaging, influence of microwave heating was also tested on chitosan films. The food consumption trends tend, indeed, to the development of ready-to-eat meal that is why it is crucial to investigate theses biopolymers behavior when used in microwave oven in food contact. The aim of this study is to bring new knowledge of theses materials and to guarantee an optimal and safe use as a food contact packaging. The results showed several deep modifications in the biopolymers structure such as chain scissions or crystallization. These modifications involved a decrease in the polymer's properties. Chitosan films, exposed to increasing microwave heating times, showed gradually increasing yellowing. Maillard neoformed compounds are responsible for this color change and could be deleterious for consumer safety because of the possibility of migration in case of food contact
Rodrigues, Júnior Harry. "Manual para o desenvolvimento de embalagens de alimentos preparados congelados." Universidade Tecnológica Federal do Paraná, 2016. http://repositorio.utfpr.edu.br/jspui/handle/1/1834.
Full textMudanças nos hábitos alimentares, nas políticas de segurança alimentar e nos estilos de vida da população tem modificado os padrões de projeto das embalagens dos alimentos. Estas mudanças são visíveis especialmente nas funções das embalagens que precisam dar conta da diversidade de oferta de alimentos congelados preparados, denominados alimentos preparados. No contexto do desenvolvimento de embalagens, questiona-se a necessidade de aprofundar a pesquisa nas funções das embalagens para essas categorias de produtos, identificando parâmetros que atendam suas especificidades. E ainda, considerando o cenário produtivo, a análise daquelas já disponíveis no mercado. Para mapear o contexto de projeto de produto, esta investigação busca delimitar as principais funções e características exigidas das embalagens de alimentos congelados preparados, bem como os métodos e práticas de projeto e o cenário de regulamentação dos órgãos normatizadores de segurança alimentar dos alimentos embalados. Como resultado dessa investigação foi elaborado um manual de referência para profissionais envolvidos na estratégia e projeto para o segmento - designers industriais e projetistas de embalagens - de modo a integrar ações, normas e métodos de projeto de produto. Uma amostragem desses perfis profissionais esteve envolvida na pesquisa com usuários e avaliação do manual e os resultados apontaram a necessidade de interlocução entre as áreas (de projeto/alimentos), reforçando a carência de materiais de referência que reúnam, de forma objetiva e sistemática, mecanismos de apoio aos responsáveis pelas análises e validações de embalagens para alimentos preparados congelados.
Changes in eating habits, the food security policies and people's lifestyles have modified food packages of design standards. These changes are visible especially in the functions of the packages that need to account for the diversity of supply of prepared frozen foods, prepared foods called. In the development of packaging, we question the need for further research into the functions of packaging for these product categories, identifying parameters that meet their specific requirements. Further, considering the manufacturing scenario, the analysis those already available on the market. To map the product design context, this research seeks to define the main functions and characteristics required of prepared frozen food packaging, as well as the methods and design practices and regulatory setting of the standard-setting bodies for food safety of packaged food. As a result of this investigation has produced a reference manual for professionals involved in strategy and design to the segment - industrial designers and packaging designers - to integrate actions, standards and product design methods. A sampling of these professional profiles has been involved in research with users and manual evaluation and the results showed the need for dialogue between the areas (design / food), reinforcing the lack of reference materials, comprising an objective and systematic way, mechanisms support those responsible for analysis and packaging validations for frozen prepared foods.
Possas, Arícia Mara Melo 1989. "Óleo essencial como antimicrobiano natural em produtos cárneos à base de peito de peru : estudo da transferência de Salmonella Enteritidis durante o fatiamento e do seu comportamento durante a vida útil dos produtos fatiados." [s.n.], 2015. http://repositorio.unicamp.br/jspui/handle/REPOSIP/255114.
Full textDissertação (mestrado) - Universidade Estadual de Campinas, Faculdade de Engenharia de Alimentos
Made available in DSpace on 2018-08-27T10:14:20Z (GMT). No. of bitstreams: 1 Possas_AriciaMaraMelo_M.pdf: 2038081 bytes, checksum: 8baf91fa5300fdd80940e18d382b2468 (MD5) Previous issue date: 2015
Resumo: Salmonella é um dos patógenos mais importantes relacionados a surtos de origem alimentar que têm como veículos carnes vendidas prontas para o consumo. A contaminação destes produtos pode ocorrer durante o processamento em operações como o fatiamento, embalagem e outros procedimentos que requerem manipulação. O aumento do consumo de produtos à base de carne de peru tem sido verificado mundialmente, pois estes aliam a praticidade dos chamados produtos "ready-to-eat" com o fato de que as carnes de aves são reconhecidas como saudáveis. Outro fator importante que influencia na escolha do consumidor é a presença de conservantes químicos nos produtos alimentícios. A substituição de conservantes químicos por substâncias naturais, como os óleos essenciais, e a incorporação destas em sistemas de embalagens ativas, representa uma alternativa interessante e atende a demanda por produtos mais naturais. Este estudo teve como objetivo desenvolver e aplicar um revestimento incorporado com óleo essencial como antimicrobiano em produtos cárneos à base de peito de peru e avaliar sua atividade contra Salmonella Enteritidis, simulando um sistema de embalagem ativa. Além disso, foi estudada a transferência desta bactéria a produtos de peito de peru durante o fatiamento, para simular a contaminação cruzada em equipamentos utilizados para este procedimento. Também foi avaliado o comportamento de S. Enteritidis durante a vida útil de fatias contaminadas dos produtos cárneos, contendo ou não revestimento de óleo essencial, armazenadas a diferentes temperaturas (10 e 25 °C). Quatro formulações dos produtos cárneos (A, B, C e D) foram estudadas para que fosse possível avaliar como a composição da matriz alimentar influencia no comportamento de S. Enteritidis. Dos quatro óleos essenciais testados in vitro, o óleo essencial de Thymus vulgaris (tomilho) foi o que apresentou menor concentração mínima inibitória (MIC) contra S. Enteritidis, sendo selecionado para ensaios posteriores. Baseando-se em análise sensorial e nos testes de triagem antimicrobiana, uma concentração de 0,8 % (v/m) de óleo essencial de T. vulgaris foi aplicada nos revestimentos para os produtos cárneos. Observou-se transferência de S. Enteritidis durante o fatiamento, a partir das lâminas de corte artificialmente contaminadas (~ 8 log UFC/lâmina) a todas as fatias analisadas (n = 20), de produtos revestidos ou não com emulsão de óleo essencial de T. vulgaris. Diferenças estatísticas foram detectadas em relação à transferência do patógeno nos diferentes tratamentos (p ? 0,05). O comportamento de S. Enteritidis nas fatias durante o armazenamento foi fortemente dependente da temperatura e da composição dos produtos, sendo verificado o crescimento a 25 °C em todas as formulações e tratamentos avaliados. Apenas o produto A propiciou o crescimento do patógeno a 10 °C. Nas fatias dos demais produtos foi verificado um perfil de sobrevivência, com redução das contagens ao longo da vida útil. O óleo essencial de T. vulgaris foi efetivo contra S. Enteritidis, durante o armazenamento de fatias revestidas a 10 °C. Testes finais indicaram que a adição e mistura do óleo essencial juntamente com os outros ingredientes, no processo industrial para obtenção dos produtos cárneos processados, possivelmente resultaria em maior atividade antimicrobiana do mesmo contra S. Enteritidis
Abstract: Salmonella is one of the most important pathogens involved in foodborne outbreaks related to the consumption of ready-to-eat meat products. The contamination of these products can occur during processing operations like slicing, packaging or other handling procedures. The increase in demand for turkey breast based products has been verified worldwide since they combine the convenience of ready-to-eat-products with the fact that poultry meat is recognized as healthy by consumers. The presence of chemical preservatives in food products is another important factor that influences consumer¿s choice. The use of natural substances as antimicrobials, such as essential oils, and their incorporation in active packaging systems represents an interesting alternative to the use of chemical preservatives. The aim of this study was to develop and implement an edible coating incorporated with essential oil as a natural antimicrobial to turkey breast products and to assess its activity against Salmonella Enteritidis, in order to simulate an active packaging system. This study also aimed to evaluate the transfer of S. Enteritidis to turkey breast products during the slicing procedure, simulating a cross-contamination scenario. Pathogen behavior during sliced turkey breast products¿ shelf-life at different storage temperatures (10 e 25 °C) was also evaluated. Four different formulations of products (A, B, C and D) were studied in order to evaluate how the composition of these food matrices can influence the behavior of S. Enteritidis. Among the four essential oils tested in vitro, Thymus vulgaris (thyme) essential oil exhibited the lowest minimum inhibitory concentration (MIC) against the pathogen and it was selected to subsequent assays. Based on sensory analysis and antimicrobial screening tests, 0.8 % (v/w) of T. vulgaris essential oil was applied on the edible coatings to be tested on turkey breast meat products. S. Enteritidis could be transferred during the slicing procedure, from artificially contaminated slicer blades (~ 8 log CFU/blade) to all slices microbiologically analyzed (n = 20), of products previously coated and not coated with T. vulgaris essential oil. Statistical differences were detected regarding pathogen transfer in the different treatments (p ? 0.05). S. Enteritidis behavior on slices during storage was strongly dependent on temperature and products composition. Growth was verified in slices of all formulations and treatments during storage at 25 °C. Only one product was susceptible to pathogen growth at 10 °C (product A). In the slices of the other three products (B, C and D) a survival pattern was observed, with reductions of S. Enteritidis counts during shelf-life. T. vulgaris essential oil was effective against S. Enteritidis during storage of slices at 10 °C. Final tests indicated that the addition of T. vulgaris essential oil with the other ingredients, during the industrial manufacture process of turkey breast products, probably would result in higher antimicrobial activity against S. Enteritidis.
Mestrado
Ciência de Alimentos
Mestra em Ciência de Alimentos
Marcos, Muntal Begonya. "Mejora de la seguridad alimentaria en productos cárnicos listos para el consumo mediante la aplicación combinada de tecnologías de conservación emergentes." Doctoral thesis, Universitat de Girona, 2007. http://hdl.handle.net/10803/7797.
Full textThe growing demand of minimally processed ready to eat food products raises a challenge for the food safety and has derived in the development of mild treatments effective to inhibit microbial growth without damaging food quality. The articles collected in this work studied the application of some strategies consisting of a combination of hurdles to inhibit microbial growth in order to improve the safety of ready to eat meat products. On one hand, the combined effect of high pressure processing and addition of starter cultures to improve the safety of low acid fermented sausages (fuet and chorizo) was assessed. On the other hand, the combination of high pressure processing and addition of natural antimicrobials (lactate-diacetate and enterocins), added directly or included in antimicrobial packaging, in order to reduce the risk of L. monocytogenes during storage of sliced cooked ham was evaluated.
Peiró, Sánchez Sara. "Actividad antioxidante del té blanco y de los residuos de limón: optimización de la extracción y aplicaciones en carne y en envases activos." Doctoral thesis, Universitat de Barcelona, 2015. http://hdl.handle.net/10803/316029.
Full textThis research project studied the antioxidant activity of lemon waste and white tea extracts, focusing on the optimization of the extraction process as well as their application onto food matrices and active packaging. The investigation was divided in three parts: in the first study, the extraction process was optimized by using Response Surface Methodology (RSM) based on the quantification of the antioxidant capacity and determination of the antiradical capacity of each extract. In the second study, environmentally- friendly extractions (i.e. without using organic solvents) were performed by using Pulsed Electric Fields. Furthermore, antimicrobial activity of the extracts and their capacity to protect cellular and DNA damage induced by external oxidative stress were evaluated. In the final part, the extracts were applied onto model emulsions, food (minced raw beef meat) and onto two different active packaging solutions based on polyethylene and polylactic acid. Results obtained demonstrate that lemon waste extracts show antioxidant capacity, can protect cells and DNA from externally induced oxidative damage and can be used as antioxidants in model emulsions, however show a reduced antioxidant effect in meat and in active packaging applied to meat. On the other hand, white tea extracts can be used as effective antioxidant agents in meat and in active packaging. From the results of these studies it is possible to conclude that lemon residual material can be used as a source of antioxidants. In addition, white tea is a good protector agent against oxidative processes and can be considered a good candidate for use as food additive or/and as a compound for active packaging formulations.
POTIER, LASNIER SYLVIE. "Augmentation de la duree de conservation d'un aliment a humidite intermediaire : comparaison entre l'atmosphere modifiee et d'autres techniques de conservation, application a la genoise." Reims, 1988. http://www.theses.fr/1988REIMS011.
Full textMarchiori, David. "Size matters! the joint influence of the size of portion, food item and container on food intake." Doctoral thesis, Universite Libre de Bruxelles, 2012. http://hdl.handle.net/2013/ULB-DIPOT:oai:dipot.ulb.ac.be:2013/209740.
Full textThe second and third chapter of this dissertation focus on two other factors related to the portion size of foods, namely the container size and the structure of the portion (i.e. food item size). The discussion of this dissertation reviews the facilitating conditions put forward previously to understand the portion size effect, as well as those reinforcing this effect, and how they may be integrated in an anchoring and adjustment perspective of eating. Finally, it aims to provide a food intake model that may accommodate for most environmental influences, with a special focus on the three influences mentioned above.
Doctorat en Sciences Psychologiques et de l'éducation
info:eu-repo/semantics/nonPublished
Queiroz, Mariana de Alpoim Motta. "Shelf Ready Packaging no retalho alimentar: caso de estudo." Master's thesis, 2016. http://hdl.handle.net/10362/19967.
Full textPinto, Maria Carolina Carvalho. "Influência do packaging na decisão de compra de um produto alimentar." Bachelor's thesis, 2021. https://hdl.handle.net/10216/135953.
Full textMalheiro, Carla Maria Osório Ferreira. "A influência do design da embalagem na melhoria da competitividade em empresas alimentares." Master's thesis, 2008. http://hdl.handle.net/1822/8890.
Full textUm dos principais objectivos das empresas consiste em desenvolver e introduzir produtos inovadores no mercado, num período de tempo reduzido. A possibilidade de criar e sustentar uma vantagem competitiva baseada na criação de embalagens com design inovador e pioneiro, que responda às necessidades actuais e futuras do mercado, leva as empresas a disponibilizarem um crescente volume de recursos nos seus projectos de concepção e desenvolvimento. Este trabalho tem como objectivo investigar e analisar em que medida a inovação e o design da embalagem influenciam na melhoria da competitividade das empresas alimentares, através da realização de um estudo de caso numa empresa do sector alimentar – Carnes Landeiro, S.A. Foi efectuada uma revisão bibliográfica de fontes teóricas diversificadas, que permitiu desenvolver um questionário com o objectivo de identificar quais os factores competitivos de um produto alimentar, analisar as embalagens de produtos alimentares existentes no mercado e comparar essas embalagens com as dos produtos da Carnes Landeiro, S.A. No estudo realizado identificou-se que a embalagem e a capacidade de inovação são factores decisivos na selecção de um produto alimentar e que em relação à embalagem, todas as características identificadas na literatura são importantes na sua definição. A análise estatística dos dados, realizada no âmbito deste projecto de investigação, permitiu verificar que, como já foi referido, existe uma relação directa entre a embalagem e a capacidade de inovação na selecção de um alimentar e uma relação directa entre a embalagem e o grau de importância das características da embalagem de um produto alimentar. Também foi possível verificar que existe uma relação directa entre a capacidade de inovação e o grau de importância das características da embalagem de um produto alimentar. Em relação aos produtos da Carnes Landeiro, S.A., verifica-se que existe uma relação inversa entre a embalagem e as características funcionais da embalagem de um produto alimentar da Carnes Landeiro, S.A. e uma relação inversa entre a capacidade de inovação e as características visuais da embalagem de um produto alimentar da Carnes Landeiro, S.A. A análise realizada permitiu verificar que não existe uma correlação significativa entre a embalagem e as características dimensionais da embalagem de um produto alimentar da Carnes Landeiro, S.A., entre a embalagem e as características visuais da embalagem de um produto alimentar da Carnes Landeiro, S.A.,entre a capacidade de inovação e as características funcionais da embalagem de um produto alimentar da Carnes Landeiro S.A, e entre a capacidade de inovação e as características dimensionais da embalagem de um produto alimentar da Carnes Landeiro, S.A. Nesta dissertação, após a análise fundamentada da problemática do design da embalagem nas empresas alimentares, concluiu-se que as embalagens da empresa Carnes Landeiro, S.A. necessitam de ser alteradas, tendo, portanto, sido sugeridas algumas alterações.
One of the main objectives of companies consists in developing and introducing of innovative products in the market in a shortest period of time. The urge to create and sustain a competitive advantage based on the creation of innovative packaging and pioneering design that meet current and future market needs takes companies to allocate an increasing amount of resources to their projects of conception and development. The objective of this work was to investigate and analyse the way in which innovation and the design of packaging influences the competitiveness of companies in the food industry, by using a study case (Carnes Landeiro. S.A.). The bibliography research that was undertaken lead to the development of a questionnaire with the objective of identifying the main competitive factors of the food industry products and to analyze and compare existing packaging of food products in the market with that of Carnes Landeiro, S.A. In the study carried out all the characteristics of packaging and the capacity of innovation were identified as decisive factors in the selection of food industry product. The statistical analysis of the data, carried out in the scope of this project, lead to the conclusion that there are direct relationships between: a) the packaging and the rank of importance of its characteristics ; b) capacity of innovation and the rank of importance of its characteristics; c) the packaging of a food products, and the dimensional characteristics of packaging of food product of Carnes Landeiro, and d) the packaging of food product and the visual characteristics of packaging of food products of Carnes Landeiro. Furthermore, it also possible to verify that there are inverse relationships between: a) the packaging of the food products and the functional characteristics of the packaging of food product of Carnes Landeiro, b) the capacity of innovation and the functional characteristics of packaging of food products of Carnes Landeiro, c) the capacity of innovation and dimensional characteristics of packaging of food products of Carnes Landeiro, d) the capacity of innovation and the visual characteristics of packaging of a food products of Carnes Landeiro. Finally, alterations to packaging structure of Carnes Landeiro products’ are presented in the light of the statistical analyses that was undertaken in this project.
Costa, Tatiana Filipa Teixeira da. "A economia circular e o comportamento do consumidor: o caso das embalagens de produtos alimentares." Master's thesis, 2018. http://hdl.handle.net/1822/59436.
Full textO esforço para alcançar uma sociedade sem desperdício levou a União Europeia a estabelecer metas crescentes ao nível das embalagens, nomeadamente para reduzir os resíduos causados pelas mesmas e aumentar a sua reciclagem. Neste sentido, devem ser concebidos e aplicados novos modelos de consumo que objetivem criar tendências fortes em direção a formas de venda de produtos mais sustentáveis. O presente estudo enfoca a análise da aceitabilidade pelos consumidores de sistemas de distribuição sem embalagem. Através de um inquérito online, os consumidores portugueses avaliaram projetos de embalagens, mostrados visualmente, de duas categorias de produtos (cereais e massa). Esta investigação permitiu a comparação de três formas alternativas de venda: embalagem opaca, embalagem com janela transparente e dispensador a granel (sem embalagem). A fim de evitar efeitos de familiaridade provenientes de experiências anteriores, foram utilizadas marcas inexistentes na vida real. Os resultados mostram que, apesar da embalagem não ser irrelevante para a avaliação dos atributos do produto, ela não é independente da alternativa de embalagem que se considere. A venda de produtos sem embalagem (através de dispensadores a granel) é uma alternativa que não despertou interesse nos inquiridos. Assim, pode-se concluir que as preferências/comportamentos dos consumidores têm de ser educados e orientados nesse sentido, para que, através da Economia Circular, seja possível dar resposta ao desejo de um crescimento económico sustentável, a nível da economia, do ambiente e da sociedade.
A drive to accomplish a zero-waste society has led the European Union to set increasing packaging targets, to reduce the waste generated by them and to increase their recycling. In this sense, new consumer models should be designed and applied to create strong trends towards more sustainable forms of product sales. The present study focuses on consumers’ acceptance of no-packaging dispensing systems. Through an online survey, Portuguese consumers evaluated packaging designs, visually shown, of two product categories (cereal and pasta). This investigation allowed the comparison of three alternative forms of sale: opaque package, transparent window and bulk dispenser (no package). In order to avoid familiarity effects from previous experiences, we used brands that do not exist in real life. The results show that although the packaging is not irrelevant to the evaluation of product attributes, it is not independent of the packaging alternative considered. The sale of unpackaged products (through bulk dispensers) is an alternative that did not arouse interest at respondents. Thus, it can be concluded that consumer preferences / behaviors have to be educated and oriented in this direction, so that, through the Circular Economy, it is possible to respond to the desire for sustainable economic growth, in terms of economy, environment and society.
Pereira, André Barbosa. "Embalagens Ativas e Novas Tendências na Indústria Alimentar." Master's thesis, 2017. http://hdl.handle.net/10316/83698.
Full textAs embalagens ativas definem um novo paradigma na indústria alimentar,possibilitando a melhoria das propriedades organoléticas e de conservação do alimento.No atual mundo globalizado, em que existe uma competição severa em todos os ramos da indústria, torna-se necessário explorar novas vias para melhorar a produtividade. A indústria alimentar não foge à regra e tenta desenvolver a cada momento, novas formas de inovação em resposta aos crescentes desafios da sociedade contemporânea. O objetivo desta monografia consiste em demonstrar o desenvolvimento desta área alimentar ao longo dos últimos anos, nomeadamente os tipos de embalagens, materiais e substâncias ativas, mas também referenciar as novas tecnologias focadas no futuro.O desenvolvimento de novos materiais conduz ao progresso em diversos campos, sendo o económico e o ambiental os mais citados. Contudo o principal beneficiado é sem dúvida o consumidor, já que poderá adquirir produtos mais frescos, mais seguros e mais agradáveis do ponto de vista organoléptico.As embalagens ativas podem ser divididas por tipo de embalagem (independentes,incorporação na embalagem e revestimento) ou por mecanismo de ação de captação e emissão de substâncias ativas (captadores de oxigénio, captadores de etileno, captadores de dióxido de carbono, captadores de odores e sabores desagradáveis e captadores de humidade, libertadores de agentes antimicrobianos, antioxidantes, aromatizantes, corantes, extratos e óleos essenciais, etc.).Tecnologias inovadoras como os revestimentos comestíveis e os nanomateriais vêm revolucionando este conceito, trazendo novas propriedades aos materiais, um contacto mais seguro com o alimento e um processo de eliminação de embalagem mais célere.Isto tudo, dentro de um contexto regido por uma regulamentação aplicada que pode permitir uma aplicação, mais ou menos liberal, destes produtos no nosso dia-a-dia.
The Active packaging defines a new paradigm in the food industry, making possible the improvement of the organoleptic properties and conservation of the food. In today's globalized world, where there is a severe competition in all industry, it is necessary to explore new ways to improve productivity. Food industry does not escape that rule and tries to develop at every moment, new forms of innovation in response to the growing challenges of contemporary society. The objective of this monograph is to demonstrate the development of this food related area over the last years, namely the types of packaging, materials and active substances, but also to refer to new technologies focused on the future. The development of new materials leads to progress in several fields, the economic and the environmental being the most cited. However the main beneficiary is undoubtedly the consumer, since you can buy products that are fresher, safer and more organoleptically pleasing. Active packaging may be divided by type of packaging or by mechanism of action for the caption and emission of active substances (oxygen collectors, ethylene scavengers, carbon dioxide collectors, anti-microbial agents, antioxidants, flavorings, colorants, extracts and essential oils, etc.).Innovative technologies such as edible coatings and nanomaterials have revolutionized this concept, bringing new properties to the materials, safer contact with food and a faster packaging elimination process. All this, within a context governed by a regulation applied that can allow an application, more or less liberal, of these products in our day to day.
Ramos, Ana Rita Morgado. "Development of responsible packaging for cheese slices." Master's thesis, 2021. http://hdl.handle.net/10400.14/36257.
Full textEste documento expõe o trabalho realizado num estágio curricular, na empresa Fromageries Bel Portugal, no âmbito da conclusão do Mestrado em Biotecnologia e Inovação Alimentar da Escola Superior de Biotecnologia (Universidade Católica Portuguesa). No documento consta uma descrição detalhada de todo o processo de desenvolvimento de uma embalagem para fatias de queijo produzidas na Fromageries Bel Portugal (referida como Bel ao longo do documento). O estudo foi realizado através da comparação de duas embalagens (constituídas por diferentes materiais) para fatias de queijo, de forma a perceber qual a mais indicada para o produto. A fim de cumprir este objetivo, realizaram-se ensaios onde foi produzido o mesmo número de embalagens de cada material. Estas embalagens foram acompanhadas ao longo do tempo de validade do produto através do seguimento de parâmetros específicos tais como: o crescimento microbiológico, parâmetros físico-químicos, propriedades visuais e de textura do produto e propriedades sensoriais. Este acompanhamento visou entender se o comportamento do produto se alterava em função dos materiais em que estava embalado. Os resultados deste estudo demonstraram que o comportamento do produto ao longo do seu tempo de validade não se altera quando embalado nos diferentes materiais testados. No entanto, este relatório não contempla todos os resultados dos parâmetros estudados uma vez que a duração do plano de acompanhamento das embalagens foi mais extensa do que a duração do estágio. A etiqueta que permite a abertura fácil do pacote e que este se mantenha fechado após a primeira abertura foi também alvo de estudo. Neste teste dois tipos de etiquetas de materiais diferentes foram testados nas mesmas embalagens do estudo explicado acima. Os resultados revelam que ambas as etiquetas são eficazes em fechar o pacote várias vezes depois de aberto. O trabalho incluiu também um estudo sobre o aparecimento de furos e micro-furos nas embalagens. Os resultados deste teste parecem indicar que o contacto entre a embalagem primária e a caixa de cartão poderá estar a danificar a embalagem e a contribuir para o aparecimento de furos e micro-furos.
Domingues, Lysangela. "Requisitos de um Sistema de Gestão de Segurança Alimentar em uma indústria de embalagens de cartão canelado segundo referencial BRC Global Standard for Packaging and Packaging Materials (Issue 5)." Master's thesis, 2018. http://hdl.handle.net/10362/85968.
Full text