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Dissertations / Theses on the topic 'Fruits and vegetable preservation'

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Published: 5 June 2025

Last updated: 1 August 2025

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1

Abdel, Karim Pia. "High pressure processing as an alternative food preservation technology and its applications for fruits and vegetables." Kansas State University, 2011. http://hdl.handle.net/2097/9958.

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Master of Science<br>Food Science Institute<br>James L. Marsden<br>Consumers demand for high quality, natural and fresh tasting food, free from preservatives and additives, with a clean label and an extended shelf life has increased. High pressure processing (HPP), also known as high hydrostatic pressure, is a non-thermal food preservation technique that has the potential to meet these demands. It is an opportunity to preserve food, by applying intensive pressure in the range of 300-900 MPa, without adversely affecting organoleptic, textural and nutritional qualities as thermal processing like

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2

Baka, Mebarek. "Photochemical therapy in the preservation of fresh fruits and vegetables, phenomenological aspects of disease resistance and delayed senescence." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1997. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape11/PQDD_0004/NQ39333.pdf.

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3

Collazo, Cordero Cyrelys. "Novel preservation strategies for microbial decontamination of fresh-cut fruit and vegetables." Doctoral thesis, Universitat de Lleida, 2018. http://hdl.handle.net/10803/663375.

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La bioconservació, així com els mètodes químics i físics, es van avaluar per controlar patògens de transmissió alimentària en productes vegetals mínimament processats. La investigació dels mecanismes d'acció de Pseudomonas graminis CPA-7 va revelar que la seva activitat bioconservadora s'exerceix a través de la combinació de la competència, el deteriorament de les capacitats de colonització dels patògens i l'activació de la resposta defensiva de l'hoste vegetal. Com enfocament físic, es va avaluar la llum ultraviolada C acoblada a immersió (WUV), en aigua i en àcid peroxiacètic (PAA), per desc

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4

Delclos, Paul-R. Mrocek. "Vegetable preservation by a mixed organic acid fermentation." Thesis, University of Surrey, 1991. http://epubs.surrey.ac.uk/842740/.

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Lactic acid fermented fruit and vegetables are normally obtained following a natural spontaneous fermentation in which no starter cultures are added. It could be expected that a suitable starter culture would help standardise production. Several lactic acid bacteria were selected for a series of physiological studies, in a defined medium (MRS broth) and in carrot juices, under varying conditions of growth temperature, salt concentration and carbohydrate source. Based on these, the homofermenter Lactobacillus pentosus and the heterofermenter Leuconostoc mesenteroides were tested as potential st

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5

Calleja, Pinedo Maria Margarita. "Distribution channels in the U.S.A. for Mexican fresh fruits and vegetables /." Full text (PDF) from UMI/Dissertation Abstracts International, 2001. http://wwwlib.umi.com/cr/utexas/fullcit?p3008294.

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6

Connor, Krista. "Fresh Fruits and Vegetable Purchasing Patterns of Maine Senior Farmshare Participants." Fogler Library, University of Maine, 2006. http://www.library.umaine.edu/theses/pdf/ConnorK2006.pdf.

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7

Carter, Patrice. "Dietary prevention of type 2 diabetes : the role of fruit and vegetable intake." Thesis, University of Leicester, 2012. http://hdl.handle.net/2381/27617.

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This thesis begins with a background chapter which explores the current diabetes epidemic and examines the role of obesity and oxidative stress as causative factors. Current dietary recommendations for prevention of type 2 diabetes are critically evaluated. A systematic review and meta-analysis was conducted to determine the independent role of fruit and vegetables in preventing diabetes. Convincing benefit for greater consumption of green leafy vegetables was demonstrated. An insignificant trend towards benefit was observed for fruit and vegetables. The Fruit and Vegetable Intake and Glucose

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8

Sempa, Judith. "Fruit and vegetable intake of youth in low-income communities." Thesis, Kansas State University, 2016. http://hdl.handle.net/2097/32912.

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Master of Public Health<br>Department of Human Ecology<br>Tandalayo Kidd<br>The objectives of the study were to assess fruit and vegetable intake of 6th to 8th grade youth in low-income areas, assess their food environment, and determine factors that influenced fruit and vegetable consumption. Sixth to eighth grade youth from two low-income communities in each of the three states of South Dakota, Kansas and Ohio were involved in the study. Fruit and vegetable intake was measured using the National Cancer Institute (NCI) fruit and vegetable screener tool. The food environment was measured

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9

Mwirigi, Kiriinya, and Beenish Kamran. "Increasing Fruits and vegetable consumption among SNAP recipients through an innovative prescription program: Appalachian Farmacy." Digital Commons @ East Tennessee State University, 2018. https://dc.etsu.edu/asrf/2018/schedule/213.

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Introduction: Food insecurity prevalence in Washington County, TN is 14.3% yet 61% of SNAP eligible residents are food insecure. Food insecurity is associated with inadequate consumption of fruits and vegetables, as well as increased risk of chronic disease. Tennessee ranks 47th in the Nation with only 6.7% consuming the recommended fruits and vegetable intake. The Farmacy Pilot Program was developed to encourage increased consumption of produce and to reduce food insecurity among SNAP recipients. Methods: This program provided vouchers to SNAP recipients and their families to buy fresh fruits

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10

Tamang, Buddhiman. "Role of lactic acid bacteria in fermentation and biopreservation of traditional vegetable products." Thesis, University of North Bengal, 2006. http://hdl.handle.net/123456789/907.

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11

Estrada, Lindsay. "WIC Participant Fruit and Vegetable Intake in California." Thesis, Walden University, 2018. http://pqdtopen.proquest.com/#viewpdf?dispub=10828829.

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<p> Low-income populations in the United States consume less healthful diets than higher-income populations, specifically relating to fruit and vegetable consumption. The supplemental nutrition program Women, Infants, and Children (WIC) is intended to bridge this gap by providing nutrition education and vouchers for nutritious foods. The purpose of this study was to determine if the 2009 WIC food package revisions impacted fruit and green vegetable consumption in 18 to 24-year-old females in California. Using the social ecological model as a guide, a population of WIC (<i>N</i> = 115) and non-

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12

Jankovska, Olivera. "New Market Access in Fresh Fruit and Vegetable Imports to the United States." Thesis, Virginia Tech, 2011. http://hdl.handle.net/10919/43912.

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Imports of fresh fruits and vegetables to the United States have grown by more than 350 percent since 1989. Factors such as rising consumer incomes, the desire for greater variety and availability of fresh produce throughout the year, and a reduction in trade barriers through multi-lateral and bi-lateral trade agreements have contributed to this growth in imports. In addition, since the implementation of the Agreement on Agriculture and the Agreement on the Application of Sanitary and Phytosanitary Measures from the Uruguay Round of the World Trade Organization negotiations, there have been nu

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13

Ahlstrom, Denice C. "Social Cognitive Predictors of College Students' Fruit and Vegetable Intake." DigitalCommons@USU, 2009. https://digitalcommons.usu.edu/etd/433.

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This study examined the social cognitive theory factors of home availability of fruits and vegetables, nutrition knowledge, food preparation ability, and cooking self-efficacy and the demographic factors of race/ethnicity, age, gender, marital status, living situation, and meal plan participation in relation to college students' fruit and vegetable consumption. The study sample was comprised of students attending on-campus classes at Utah State University during spring semester of 2009. Data were collected via traditional pencil-and-paper surveys distributed during classes with students in v

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14

Manganiello, Lauren Marie. "Development and Validation of a 10-item Questionnaire Assessing Vegetable and Fruit Consumption Behaviors in Low-Income 9-11 Year Olds." The Ohio State University, 2012. http://rave.ohiolink.edu/etdc/view?acc_num=osu1343082014.

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15

Brooks, Tanisha. "The Effect of Dietary Fruits & Vegetable Consumption and Physical Activity on Obesity in African American Adolescent Females." ScholarWorks, 2016. https://scholarworks.waldenu.edu/dissertations/3432.

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Obesity is epidemic among Black adolescent females, and adolescent obesity often leads to adult obesity. Previous research suggests that there may be an interaction between physical activity and dietary fruit and vegetable intake on body mass index (BMI) in obese adolescent females in general, but it was unclear whether the same pattern is evident in Black adolescent females, who, on average, tend to have low levels of physical activity and fruit and vegetable intake. Bandura's social learning theory implies the possibility that adolescent females might model their behaviors on the behavior of

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16

Yucel, Umut. "Evaluation Of High Pressure Pretreatment For Enhancing The Drying Rate Of Selected Fruits And Vegetables." Master's thesis, METU, 2006. http://etd.lib.metu.edu.tr/upload/12607649/index.pdf.

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Drying is a process of moisture removal due to simultaneous heat and mass transfer. High hydrostatic pressure (HHP) processing subjects liquid and solid foods, with or without packaging, to pressures between 100 and 800 MPa. The application of HHP affects cell wall structures, leaving the cells more permeable, facilitating the diffusion and providing higher drying rates. In this study, two variety of apples, i.e. Amasya and red delicious, green beans and carrots were pretreated with HHP at different pressure-time-temperature combinations (100 &ndash<br>300 MPa for 5 &ndash<br>45 min at 20 and

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17

Bergamaschi, V. "PERCEPTIVE AND BEHAVIORAL DETERMINANTS OF FRUITS AND VEGETABLES CONSUMPTION IN CHILDHOOD: STRATEGIES TO PREVENT OBESITY." Doctoral thesis, Università degli Studi di Milano, 2014. http://hdl.handle.net/2434/244987.

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Negli ultimi anni la prevenzione e il trattamento dell’obesità hanno rivestito un ruolo di primaria importanza per salute pubblica in tutto il mondo. Anche se è ormai noto che un regolare consumo di frutta e verdure è associato a una riduzione di peso e a benefici per la salute, il consumo di tali prodotti è ben lontano dalle cinque porzioni al giorno raccomandate, specialmente nei bambini (WHO, 2012). Tra i differenti fattori che influenzano il consumo di frutta e verdura, la dimensione edonistica gioca un ruolo fondamentale. Essa è il risultato di complesse interazioni tra determinanti perc

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18

Karov, Vuko. "Trade Barriers or Trade Catalysts? The Effects of Phytosanitary Measures on U.S. Fresh Fruit and Vegetable Imports." Thesis, Virginia Tech, 2009. http://hdl.handle.net/10919/76936.

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U.S. imports of fresh fruits and vegetables have increased sharply since the late 1980's. With increased imports come increased concerns that pests and diseases may infest shipments of fresh agricultural products. To address this concern, USDA's APHIS implements phytosanitary measures that mitigate pest and disease risks. These regulations vary from documentation requirements, inspection, or requiring that shipments receive a phytosanitary treatment. A growing body of literature attempts to assess the generic trade flow effects of SPS measures. Still, little evidence is available to shed light

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19

Nicolau, Lapeña Iolanda. "Improvement of the quality and safety of vegetable products through innovative technologies." Doctoral thesis, Universitat de Lleida, 2021. http://hdl.handle.net/10803/672275.

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L'evolució de la societat en països desenvolupats ha portat a models de consum basats en productes còmodes, saludables i respectuosos amb el medi ambient. Els beneficis saludables que s’atribueixen a les fruites i hortalisses (FiH), així com la seva facilitat de consum, fan d'aquests productes el tema central de la present tesi. No obstant això, s'han de remarcar dues problemàtiques. La primera, és que aquests productes típicament es consumeixen crus, i hi ha encara un alt nombre de brots relacionats amb patògens alimentaris. La segona és que un terç de les FiH que es produeixen anualment es m

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20

Mingioni, Mathieu. "L’alimentation des personnes âgées : étude sensorielle des fruits et légumes enrichis." Thesis, Angers, 2016. http://www.theses.fr/2016ANGE0031/document.

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Face à une population vieillissante et à la prévalence du risque de dénutrition, cette thèse s’est intéressée à comprendre comment développer des produits nutritionnellement et sensoriellement adaptés à l’alimentation des personnes âgées en s’appuyant sur les outils sensoriels.Grâce à une enquête comparative multidisciplinaire réalisée dans 5 pays européens, nous avons mis en évidence trois grands profils d’habitudes et de préférences alimentaires chez des personnes âgées dépendantes pour leur alimentation (n=405). Malgré ces différences, nous fournissons une liste de fruits et légumes consens

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21

Herbig, Anna-Lena. "Stability of vegetable microconstituents at intermediate temperatures : fate of vitamins and other micro-components in products based on fruits and vegetables." Thesis, Avignon, 2016. http://www.theses.fr/2016AVIG0263/document.

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Dans le cadre du projet européen « Optimized Products for Elderly Populations (OPTIFEL) » (ou « produits optimisés pour des gens âgés »), des produits alimentaires sont conçus pour les besoins particuliers des personnes âgées. Puisque cette population est souvent mal-nourrie, l’objectif du projet consistait à produire des aliments riches en nutriments et appétants. Ce but a été mis en œuvre en enrichissant des produits à base de fruits et légumes avec des protéines, des minéraux et vitamines, dont la vitamine C et les folates. Cependant, les deux dernières vitamines sont connues pour être frag

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22

Ramniceanu, Radu. "An Empirical Assessment of the Effects of SPS Regulations on U.S. Fresh Fruit and Vegetable Exports." Thesis, Virginia Tech, 2011. http://hdl.handle.net/10919/76926.

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A fundamental requirement in agricultural trade is that imported products are safe, and do not pose a risk to human, animal and plant health. To address this issue, all countries maintain measures to ensure that imported food is safe for consumers, and to prevent the spread of disease among animals and plants. These measures, by their nature, can affect competitiveness by increasing the costs of imports or prohibiting them altogether. To ensure that these measures are used for their intended purpose and not as protectionist measures, WTO member countries signed the Agreement on the Application

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23

Anele, Mayekiso. "Production of Indigenous Leafy Vegetables (ILVs) and their contribution to household food security: evidence from Coffee Bay, Eastern Cape Province of South Africa." Thesis, University of Fort Hare, 2016. http://hdl.handle.net/10353/712.

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This study used cross-sectional survey data to estimate farmers` perceptions of, and commonly cultivated ILVs, factors that influence the participation of smallholder famers in the production of Indigenous Leafy Vegetables and its contribution to household food security]. With regard to farmers` perceptions of ILVs, descriptive results reveal that a majority of the people from the study area share positive perceptions with respect to ILVs. Regression estimates for determinants of participation indicate that the production of ILVs is primarily conditioned by shared perceptions and institutional

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24

Smith, Elizabeth Ann. "The Effects of Access and Education on Preschool Children’s Fruit and Vegetable Intake." The Ohio State University, 2017. http://rave.ohiolink.edu/etdc/view?acc_num=osu1492295915836393.

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25

Winkler, Elisabeth Amy. "Food accessibility, affordability, cooking skills and socioeconomic differences in fruit and vegetable purchasing in Brisbane, Australia." Thesis, Queensland University of Technology, 2008. https://eprints.qut.edu.au/17016/1/Elisabeth_A._H._Winkler_Thesis.pdf.

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Across Australia and other developed nations, morbidity and mortality follows a socioeconomic gradient whereby the lowest socioeconomic groups experience the poorest health. The dietary practices of low socioeconomic groups, which are comparatively less consistent with dietary recommendations, have been thought to contribute to the excess morbidity and mortality observed among low socioeconomic groups, although this phenomenon is not well understood. Using a socioecological framework, this thesis examines whether the local food retail environment and confidence to cook contribute to socioeco

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Winkler, Elisabeth Amy. "Food accessibility, affordability, cooking skills and socioeconomic differences in fruit and vegetable purchasing in Brisbane, Australia." Queensland University of Technology, 2008. http://eprints.qut.edu.au/17016/.

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Across Australia and other developed nations, morbidity and mortality follows a socioeconomic gradient whereby the lowest socioeconomic groups experience the poorest health. The dietary practices of low socioeconomic groups, which are comparatively less consistent with dietary recommendations, have been thought to contribute to the excess morbidity and mortality observed among low socioeconomic groups, although this phenomenon is not well understood. Using a socioecological framework, this thesis examines whether the local food retail environment and confidence to cook contribute to socioeco

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Nkouam, Gilles Bernard. "Conservation des fruits du karité (Vitellaria paradoxa Gaertn.) et de l'aiélé (Canarium schweinfurthii Engl.) : isothermes de sorption d'eau et extraction des matières grasses des fruits stockés." Thesis, Vandoeuvre-les-Nancy, INPL, 2007. http://www.theses.fr/2007INPL058N/document.

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La méthode microgravimétrique statique a permis d’observer que la pulpe de l’aiélé est plus hygroscopique que l’amande de karité à 25°C. A l’inverse, on fait l’observation contraire entre 35 et 55°C. Le modèle d’Oswin décrit le mieux les données de sorption des deux produits sur toute la gamme d’activité de l’eau. Les isothermes de l’amande de karité et de la pulpe de l’aiélé présentent le phénomène d’hystérésis entre 25 et 55°C. La conservation de ces oléagineux doit s’effectuer dans une atmosphère d’humidité relative comprise entre 40 et 60% afin d’obtenir des teneurs en eau recommandées. Un

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Richie, Kevin Anthony. "THE IMPACT OF A FRUIT AND VEGETABLE FARMERS' MARKET VOUCHER PRESCRIPTION PROGRAM ON A LOW-INCOME RURAL POPULATION." UKnowledge, 2019. https://uknowledge.uky.edu/foodsci_etds/65.

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Objective: Measures the impact of the Farmers’ Market Voucher program on weight, body mass index, waist circumference, during the 2016 summer on a rural, low-income population residing in Appalachian Kentucky. Background: Rural communities often have limited access to fresh fruits and vegetables (FV) which contributes to low levels of consumption. FV are calorie poor, nutrient dense and are inversely associated with inflammation markers, obesity, hypertension, and high blood glucose levels. Appalachian rural communities have a higher prevalence of obesity, diabetes, strokes, and death by heart

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Syeda, Umaima Sidra Afsheen. "PROMOTION OF FRUIT AND VEGETABLE INTAKE THROUGH RECIPE CARD DISTRIBUTION AND SAMPLING AT FARMERS’ MARKETS THROUGHOUT KENTUCKY." UKnowledge, 2019. https://uknowledge.uky.edu/foodsci_etds/71.

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The Center for Disease Control and Prevention (CDC) reports indicate that 8% and 6.3% of Kentuckians consume enough fruits and vegetables, respectively. The Plate It Up! Kentucky Proud (PIUKP) project is a recipe-development project that aims to boost produce consumption by incorporating local fruits and vegetables. The purpose of this study was to implement promotional strategies using PIUKP recipes at farmers’ markets and determine their effects on consumers’ intent of purchasing and preparing the produce. The study was conducted at nine farmers’ markets across Kentucky (n=300) in collaborat

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Shertzer, Julie Anne Kennel. "Introducing children to fresh fruits and vegetables in the classroom identifying features that may affect outcomes of the USDA Fresh Fruit and Vegetable Program (FFVP) /." [Bloomington, Ind.] : Indiana University, 2008. http://gateway.proquest.com/openurl?url_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:dissertation&res_dat=xri:pqdiss&rft_dat=xri:pqdiss:3319908.

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Thesis (Ph.D.)--Indiana University, Dept. of Applied Health, School of Health, Physical Education and Recreation, 2008.<br>Title from PDF t.p. (viewed on May 13, 2009). Source: Dissertation Abstracts International, Volume: 69-08, Section: B, page: 4677. Adviser: Alyce D. Fly.

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Mwirigi, Kiriinya. "Exploring the Role of Social Capital in the Implementation of Fruit and Vegetable Incentive Programs: A Case Study of the Appalachian Farmacy Program." Digital Commons @ East Tennessee State University, 2019. https://dc.etsu.edu/etd/3633.

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The study was conducted to explore the role of social capital in the implementation of Fruit and Vegetable Incentive Programs (FVIP) through a case study of the Appalachian Farmacy (AF) program and to fill a gap in literature on social capital utility in the implementation and evaluation of FVIPs. The study was guided by a conceptual model adopted from Berkman et al. (2000) to identify the mechanisms through which social networks can impact health. A qualitative content analysis was conducted retrospectively on secondary data from the evaluation of AF program to identify social capital attribu

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Bihan, Hélène. "Précarité et impact sur les comportements de santé : consommation de fruits et légumes, et prise en charge du diabète." Phd thesis, Conservatoire national des arts et metiers - CNAM, 2011. http://tel.archives-ouvertes.fr/tel-00631236.

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La précarité est une dimension plus vaste que la pauvreté atteignant presque 15 % de la population française. Les personnes précaires ont plus de risques de développer certaines pathologies, dont des pathologies liées à l'alimentation, le diabète. Une étude d'intervention randomisée a été réalisée auprès d'une population de personnes précaires sur une durée de 12 mois. Les volontaires recevaient des conseils diététiques et/ou des chèques afin de favoriser la consommation de fruits et légumes. D'une consommation initiale d'environ 2,5 portions par jour, avec 30 % de sujets consommant en moyenne

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Dickens, Emily. "Color Your Plate: A Pilot Nutrition Education Intervention to Increase Fruit and Vegetable Intake Among Older Adults Participating in the Congregate Meal Site Program in Kentucky Senior Centers." UKnowledge, 2016. http://uknowledge.uky.edu/foodsci_etds/44.

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The purpose of this study was to determine if the amount and variety of fruit and vegetable intake increased among community-dwelling older adults participating in Kentucky’s congregate meal site program following a series of educational nutrition lessons. A convenience sample (n=35) of community-dwelling older adults at two intervention (n=19) and two control (n=16) senior centers in central Kentucky participated in this quasi-experimental pre-post pilot study. Following the intervention there was a trend towards increased self-reported intake in the variety of fruit and vegetables among the

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Sarang, Sanjay S. "OHMIC heating for thermal processing of low-acid foods containing solid particulates." The Ohio State University, 2008. http://rave.ohiolink.edu/etdc/view?acc_num=osu1197669208.

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Rudi, Jeta. "Two Applied Economics Essays: Trade Duration in U.S. Fresh Fruit and Vegetable Imports & Goods-Time Elasticity of Substitution in Household Food Production for SNAP participants and nonparticipants." Thesis, Virginia Tech, 2012. http://hdl.handle.net/10919/34034.

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The first study investigates the factors that impact the duration of U.S. fresh fruit and vegetable imports. We employ both survival analysis (Kaplan Meier estimates and Cox proportional hazards model) as well as count data models. Our results indicate that SPS treatment requirements positively impact the duration of trade while new market access has the opposite effect. Other factors typically included in trade duration models (such as: GDP, transportation costs, tariff rates, etc.) were also investigated. We also employ a probit model to understand the factors impacting the probability that

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Berger, Laura Elizabeth. "Validation of a 10-item Questionnaire Measuring Fruit and Vegetable Consumption in 9-11 year old Children Living in Low-Income Households." The Ohio State University, 2014. http://rave.ohiolink.edu/etdc/view?acc_num=osu1406209480.

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37

Hameed, Khurram. "Computer vision based classification of fruits and vegetables for self-checkout at supermarkets." Thesis, Edith Cowan University, Research Online, Perth, Western Australia, 2022. https://ro.ecu.edu.au/theses/2519.

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The field of machine learning, and, in particular, methods to improve the capability of machines to perform a wider variety of generalised tasks are among the most rapidly growing research areas in today’s world. The current applications of machine learning and artificial intelligence can be divided into many significant fields namely computer vision, data sciences, real time analytics and Natural Language Processing (NLP). All these applications are being used to help computer based systems to operate more usefully in everyday contexts. Computer vision research is currently active in a wide r

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Lecompte, Emily M. "A Mixed Methods Study of the Factors that Enhance and Challenge Food Security, Fruit and Vegetable Access and Consumption, and the Uptake and Management of the Ottawa Good Food Box." Thesis, Université d'Ottawa / University of Ottawa, 2016. http://hdl.handle.net/10393/35255.

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Individuals who are disadvantaged by low-income and/ or minority status face a number of barriers to experiencing optimal health and eating well. Twenty Aboriginal and 29 non-Aboriginal participants (N = 49) from Ottawa, Canada took part in a cross-sectional, mixed methods study and completed one questionnaire and single in-depth interview that verified: 1) food security status and household eating habits, 2) fruit and vegetable purchase and consumption, and 3) knowledge about or participation in the Good Food Box [GFB] Program. Ottawa GFB staff (n = 5), site coordinators (n = 6) and steering

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Souza, Valeria Melo de. "Processo de secagem da goma de cajueiro (Anacardium occidentale L.) e suas propriedades tecnolÃgicas." Universidade Federal do CearÃ, 2011. http://www.teses.ufc.br/tde_busca/arquivo.php?codArquivo=6689.

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FundaÃÃo de Amparo Ã Pesquisa do Estado do CearÃ<br>Conselho Nacional de Desenvolvimento CientÃfico e TecnolÃgico<br>PaÃses tropicais, como o Brasil, sÃo depositÃrios de uma grande variedade de fontes de polissacarÃdeos vegetais conhecidos e outros ainda nÃo explorados que possuem grande potencial em aplicaÃÃes industriais. A goma de cajueiro pode ser citada como um desses polissacarÃdeos. Algumas pesquisas reportam a possibilidade do uso da goma de cajueiro em vÃrios setores e por sua semelhanÃa estrutural com a goma arÃbica, tem sido sugerida como substituta. Sendo assim, este projeto se p

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Resende, Evellyn Couto Oliveira. "Efeito do tratamento hidrotérmico quarentenário na pós-colheita de mamão." Universidade de São Paulo, 2016. http://www.teses.usp.br/teses/disponiveis/11/11144/tde-06012017-131545/.

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O mamão é um fruto climatérico, cujas transformações resultantes do amadurecimento ocorrem rapidamente após a colheita e são desencadeadas pela produção de etileno e aumento da respiração, sendo um fruto bastante perecível. O uso de tecnologias como o tratamento térmico e a refrigeração se torna necessário, pois elas eliminam ovos e/ou larvas de mosca-das-frutas e controlam o desenvolvimento de microrganismos, aumentando a vida de prateleria desse fruto. No entanto, podem causar alterações nos processos do amadurecimento e danos à integridade da membrana plasmática. Dessa forma, o projeto tem

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Herbig, Anna-Lena [Verfasser], Michael [Akademischer Betreuer] [Gutachter] Rychlik, Catherine [Gutachter] Renard, Philippe [Gutachter] Schmitt-Kopplin, and Eric [Gutachter] Marchioni. "Stability of vegetable micro-constituents at intermediate temperatures: fate of vitamins and other micro-components in products based on fruits and vegetables / Anna-Lena Herbig ; Gutachter: Catherine Renard, Philippe Schmitt-Kopplin, Eric Marchioni, Michael Rychlik ; Betreuer: Michael Rychlik." München : Universitätsbibliothek der TU München, 2016. http://d-nb.info/1127225340/34.

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Luengo, Rita de Fátima Alves. "Dimensionamento de embalagens para comercialização de hortaliças e frutas no Brasil." Universidade de São Paulo, 2006. http://www.teses.usp.br/teses/disponiveis/11/11136/tde-10032006-171411/.

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O elevado índice de perdas pós-colheita que ocorre no Brasil impede que 20 a 30 % das hortaliças e frutas produzidas e que saem do campo cheguem ao consumidor final. Embalagens adequadas para a comercialização podem contribuir para reduzir essas perdas. Buscou-se neste trabalho dimensionar embalagens para comercialização das principais espécies de hortaliças e frutas comercializadas no Brasil, considerandose a proteção da carga, quanto a danos mecânicos, o atendimento à legislação brasileira, a adequação de logística e o atendimento a critérios ergonômicos para proteger a saúde do operador.

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Rovira, Buendía Núria. "Agricultura y gestión de los recursos vegetales en el sureste de la península ibérica durante la prehistoria reciente." Doctoral thesis, Universitat Pompeu Fabra, 2007. http://hdl.handle.net/10803/7468.

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Los principales temas de investigación abordados en este trabajo se refieren a la gestión de los recursos vegetales por parte de las comunidades del Sureste de la península Ibérica, desde finales del Neolítico antiguo hasta el Bronce final, a través del estudio inédito de los restos de semillas y frutos arqueológicos documentados en Los Castillejos (Montefrío, Granada), Las Pilas/Huerta Seca (Mojácar, Almería), Castellón Alto (Galera, Granada) y San Miguel Bajo/Calle Concepción (Guadix, Granada). <br/>La agricultura es la principal práctica económica documentada durante toda la secuencia estud

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Puydebois, Maryline. "Proto-matériau végétal et utopies spatio-temporelles : oeuvres végétales contemporaines et pratiques personnelles." Thesis, Aix-Marseille, 2018. http://www.theses.fr/2018AIXM0524.

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Il s’agit de s’interroger à partir de notre pratique plastique qui s’intègre dans l’Art Végétal, sur le statut, la fonction et le processus créateur du proto-matériau végétal dans les œuvres contemporaines. Ce travail analyse la capacité du déchet, d’une épluchure de fruit ou de légume à convoquer certains savoir-faire, procédés techniques s’intégrant dans un proto-langage artistique. Ce principe créateur végétal interroge de manière paradoxale la notion de conservation créatrice à partir de matériaux ordinaires et éphémères. Ces dispositifs de préservation de fragments végétaux créent un espa

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Miricho, Esther W. "Food quality and safety of solar dried fruits and vegetables in the Butha-Buthe district, Lesotho." Thesis, 2005. http://hdl.handle.net/10413/4129.

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This study investigated the quality and safety of solar dried fruits and vegetables produced by households in three locations in the Butha-Buthe district of Lesotho from November 2002 to March 2003. The aim of the study was to enhance year round availability of fruits and vegetables and reduce post-harvest losses, contributing to increased food availability and accessibility in the district. The study analysed the quality and safety of dried fruits and vegetables by assessing the processing techniques applied by the respondents during the production of dried fruits and vegetables, analysing th

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Volpe, Stefania. "Development of biomaterials and their application to the preservation of fruit and vegetables." Tesi di dottorato, 2016. http://www.fedoa.unina.it/11065/1/volpe_stefania_28.pdf.

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Biobased food packaging materials have been defined as materials derived from renewable resources; the class of biopolymers encompasses all the polymeric compounds produced by living organisms and are mainly represented by polysaccharides, proteins and lipids. Biopolymers are largely used to produce biodegradable and edible films and coating that can reduce the problem of waste disposal due to the synthetic packaging. Moreover the concept of using edible film and coating to extend the shelf-life of food has been increased. This success in extending the shelf life and enhancing the quality of f

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Tello-Lopez, Edgar Eduardo. "Improved moisture permeability determinations for packaging films and food coatings." Thesis, 1994. http://hdl.handle.net/1957/27233.

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Equipment and procedures for the rapid measurement of the water vapor permeability of polymer films and food coatings has been evaluated. The method uses an electronic sensor to measure the concentration increase in water vapor diffusing through a film into a chamber of known volume. Air of known humidity is passed over each side of the film to establish a desired equilibrium relative humidity differential prior to each test. Experimental results showed that moisture vapor transmission rates of polymer packaging films and edible coatings could be determined in a range from 0.25 to 12 hours ins

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Santeramo, Fabio Gaetano. "Market Integration in European Union’s Fruits and Vegetable Sectors." Tesi di dottorato, 2009. http://www.fedoa.unina.it/4209/1/Santeramo_thesis_30_Nov_2009.pdf.

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The aim of this dissertation is to assess the degree of market integration in some F&V sectors through econometric techniques. In particular we estimated the speed of price transmission among closely located markets as well as the price transmission across different Regions. We consider products that differ for storability, incidence of transportation costs and production technologies so we are able to generalize our findings to the whole EU F&V sector. We employed Granger-Causality tests and estimated Ravallion-type regressions to identify the markets that mainly influence the prices of other

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Chen, Hsueh-Liang, and 陳學良. "Analysis of Privitization for Taiwan Fruits and Vegetable Wholesale Markets." Thesis, 1997. http://ndltd.ncl.edu.tw/handle/85358158356096274898.

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碩士<br>國立中興大學<br>農業經濟學系<br>85<br>Analysis of Privatization forTaiwan Fruits and Vegetable Wholesale MarketsAbstract This paper attempts to analyze both the advantage and disadvantage of privatization for Taiwan fruits and vegetable wholesale markets. Institutional economics and principal-agent theory are used to analyze the privatization problems of Taiwan wholesale markets. Questionnaire survey and factor analysis are also used to facilitate this research project. Our major findings are tha

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Pinheiro, Maria Joaquina da Cunha. "Preservation technologies towards improvement of fresh whole tomato fruits quality." Doctoral thesis, 2014. http://hdl.handle.net/10400.14/16721.

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O tomate (Solanum lycopersicum) é um dos frutos mais consumidos no mundo e com um papel relevante na saúde do consumidor devido à sua riqueza em vitaminas, licopeno, fibras e compostos fenólicos. Os desafios que se colocam aos produtores e indústria de tomate em fresco são o de manter a qualidade e prolongar o seu período de vida útil. Tecnologias de pós-colheita alternativas e emergentes, tais como o tratamento térmico (WHT), ultrassons (US), termossonicação (TS) e radiação ultravioleta (UV-C), têm sido testados em diferentes frutos e vegetais de forma a minimizar as perdas de qualidade senso

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