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Dissertations / Theses on the topic 'Bio-based products'

Author: Grafiati

Published: 4 June 2021

Last updated: 26 July 2025

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1

Piovani, Laura. "Study of low environmental coating products: bio-based water products and solvent based products deriving from PET recycling." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2021.

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In this study three different projects are presented.The first consist in the analysis of two different bio resins with which a white and a transparent water-based base coat, a transparent water-based top coat and a water-based hydro-oil are formulated, applied and characterized, replacing the fossil based resins. First, the two bio resins are analyzed in terms of compatibility with other resins, additives and solvents and then the products formulated are characterized in terms of viscosity and chemical resistances. After the application, the products are analyzed in terms of filming capacity.

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2

PALMIERI, SILVIA. "Enhancement of bio-based industrial by-products for innovative applications in engineering." Doctoral thesis, Università Politecnica delle Marche, 2021. http://hdl.handle.net/11566/289481.

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L'estrazione e la produzione di risorse materiali hanno un impatto significativo sull'ambiente e sulla salute umana, oltre che sull'economia. Pertanto, ora, la salvaguardia e il risparmio delle risorse necessarie per il pianeta sta diventando sempre più importante nel campo dell'ingegneria e delle tecnologie. L’ingegneria della materia, grazie allo sviluppo di materiali innovativi tramite il riutilizzo di vecchie risorse, offre diversi spunti per la realizzazione di materiali durevoli, multifunzionali e, soprattutto, attenti al consumo. Difatti, il settore della ricerca sui materiali si sta

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3

Mao, An. "AN INVESTIGATION OF USING PYROLYSIS BIO-OIL AS PART OF THE BINDER SYSTEM FOR WOOD-BASED COMPOSITES." MSSTATE, 2009. http://sun.library.msstate.edu/ETD-db/theses/available/etd-03262009-092337/.

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The objective of this research was to investigate the feasibility of using the pyrolysis bio-oil as part of a binder system for wood-based composites. Liquid products obtained from pyrolysis process of pine wood were mixed with reactants, such as isocyanate. The adhesive binder system was blended with flakes to fabricate flakeboard. The effect of the resin content and the mix ratio of the adhesive on the physical and mechanical properties of the flakeboard were examined. Dynamic mechanical analysis (DMA) was also employed to investigate the thermal properties of the adhesives. The results indi

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4

Triana, Dopico Julián. "Model-based analysis and metabolic design of a cyanobacterium for bio-products synthesis." Doctoral thesis, Universitat Politècnica de València, 2014. http://hdl.handle.net/10251/39351.

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The current investigation is aimed at the reconstruction and analysis of genome-scale metabolic models. Specifically, it is focused on the use of mathematical-computational simulations to predict the cellular metabolism behavior towards bio-products production. The photosynthetic cyanobacterium Synechococcus elongatus PCC7942 was studied as biological system. This prokaryotic has been used in several studies as a biological platform for the synthesis of several substances for industrial interest. These studies are based on the advantage of autotrophic systems, which basically requires light a

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Boscolo, Lorenzo. "Extraction of antioxidants from corn by-products for applications in bio-based polymer matrices." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2021. http://amslaurea.unibo.it/22415/.

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The objective of this dissertation is the evaluation of the exploitability of corn cobs as natural additives for bio-based polymer matrices, in order to hone their properties while keeping the fundamental quality of being fully bio-derived. The first part of the project has the purpose of finding the best solvent and conditions to extract antioxidants and anti-degrading molecules from corn cobs, exploiting room and high-temperature processes, traditional and advanced extraction methods, as well as polar and nonpolar solvents. The extracts in their entirety are then analysed to evaluate their

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6

Gaio, Marco <1992&gt. "A review of LCA studies on bio-based products using an ecosystem services perspective." Master's Degree Thesis, Università Ca' Foscari Venezia, 2019. http://hdl.handle.net/10579/15505.

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Bioeconomy strategies are currently promoted as progressive sustainability avenues in the Nordic countries and globally, also engaging key economic sector and industries. Different bioeconomy activities imply changes in the redistribution of biological resources, which have a direct influence on natural capital and ecosystem services. Based on a systematic review, the existing evidence regarding the impacts (positive and negative) of selected bio-based products (bio-energy, bio-chemicals, bio-products) on ecosystem services is analysed. The review will include scientific studies published in E

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7

CAPORUSSO, ANTONIO. "Innovative biotechnological process for the conversion of lignocellulosic biomasses into high added-value products." Doctoral thesis, Università degli studi della Basilicata, 2022. http://hdl.handle.net/11563/157026.

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Climate change and environment degradation are an concrete threats for the world. To overcome these threats, the European Union (EU) has put in place the European Green Deal (EGD), a growth strategy aimed at developing an EU competitive and sustainable economy. The EGD, adopted at the end of 2019, provides the action plan to achieve the carbon neutrality, resource efficiency and zero pollution in the EU by 2050. This set of policy initiatives, coupled with the new EU Recovery Plan developed to support the repair of the economic and social damages caused by the COVID-19 pandemic, represents tod

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8

Briani, Cristiana. "A study of the biogeochemical cycle of the biogenic carbon to assess the circularity of bio-based products." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2019. http://amslaurea.unibo.it/17413/.

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The level of circularity of a product or a process is an emerging characteristic in international labelling; however, only fossil-derived materials are evaluated through circularity indices, e.g. the Material Circularity Indicator, MCI, developed by Ellen MacArthur Foundation. This work proposes a complementary index which can serve as Correction Factor (CF) to the MCI, designed specifically for biologically based and renewable materials, such as bio-based products. This index, named MCICFbio, which focuses on the timings of the carbon’s biogeochemical cycle and the effects of human actions o

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9

SUAREZ, ESTRELLA DIEGO PATRICIO. "GERMINATION AS A BIO-TECHNOLOGICAL PROCESS TO ENHANCE THE USE OF QUINOA (CHENOPODIUM QUINOA WILLD.) IN CEREAL-BASED PRODUCTS." Doctoral thesis, Università degli Studi di Milano, 2019. http://hdl.handle.net/2434/646338.

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Awareness of the several agronomic, environmental, and health benefits of quinoa has led to a constant increase in its production and consumption not only in South America - where it is a native crop – but also in Europe and the United States. However, producing cereal products enriched with quinoa alters some quality characteristics, including sensory acceptance. Indeed, several anti-nutritional factors, such as saponins, are concentrated in the grain pericarp. These bitter substances may interfere with the digestion and absorption of various food components. The most common of them are washi

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10

Ghosson, Hikmat. "Development of a novel universal proxy to assess the environmental fate and impact of complex (bio)pesticides by Mass Spectrometry-based Metabolomics." Electronic Thesis or Diss., Perpignan, 2020. http://www.theses.fr/2020PERP0029.

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Malgré la prise de conscience écologique et sanitaire, la consommation mondiale de pesticides est en augmentation. Étant donné que ces produits chimiques présentent de nombreux effets néfastes sur la santé humaine et l'environnement, des mesures doivent être prises afin de limiter leurs effets. Les produits de biocontrôle sont proposés comme une solution alternative aux produits synthétiques. En effet, ces « biopesticides » sont présumés être moins nocifs et relativement moins persistants. Toutefois, cet a priori doit être examiné et une évaluation stricte des risques de ces nouvelles substanc

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11

Stahl, Florian Felix [Verfasser], Klaus [Akademischer Betreuer] Menrad, Klaus [Gutachter] Menrad, and Sebastian [Gutachter] Goerg. "Influences on purchase intention for bioplastic products and consumer preferences for bio-based apparel in Germany / Florian Felix Stahl ; Gutachter: Klaus Menrad, Sebastian Goerg ; Betreuer: Klaus Menrad." München : Universitätsbibliothek der TU München, 2021. http://nbn-resolving.de/urn:nbn:de:bvb:91-diss-20210601-1575047-1-9.

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12

Dang, Yu. "Value-added Conversion of Waste Cooking Oil, Post-consumer PET Bottles and Soybean Meal into Biodiesel and Polyurethane Products." The Ohio State University, 2016. http://rave.ohiolink.edu/etdc/view?acc_num=osu1468591615.

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13

Le, Delliou Benjamin. "Design of poly(3-hydroxybutyrate-co-3-hydroxyvalerate) based films for flexible food packaging in contact with fatty food and under frozen conditions." Electronic Thesis or Diss., université Paris-Saclay, 2021. http://www.theses.fr/2021UPASB033.

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L'objectif principal de cette thèse est de concevoir un matériau d'emballage biosourcé et biodégradable adapté au conditionnement de frites surgelées en utilisant les sous-produits de leur fabrication. Deux stratégies ont été étudiées. La première stratégie consistait à fabriquer des mélanges de polymères à base de poly(3-hydroxybutyrate-co-3-hydroxyvalérate) (PHBV), qui peuvent être obtenus par fermentation de sous-produits. Les mélanges PHBV-poly(butylène succinate -co-adipate) (PBSA) ont été conçus dans le but d'améliorer sa mise en oeuvre ainsi que d'augmenter la ductilité du PHBV. Les deu

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14

Chappaz, Alban. "Développement de nouveaux milieux et catalyseurs acides pour la transformation de biomasse lignocellulosique en molécules plateformes." Thesis, Lyon, École normale supérieure, 2014. http://www.theses.fr/2014ENSL0936.

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L'objectif de la thèse est d'étudier la transformation de la fraction cellulosique de la biomasse en acide lévulinique. Cet acide est une molécule plateforme permettant un accès à de multiples produits, tels que des solvants, des monomères ou encore des molécules à plus forte valeur ajoutée.Nous proposons d'étudier la transformation de la cellulose en acide lévulinique catalysée par des solutions aqueuses concentrées en acides de Brønsted. La forte acidité de ces milieux et leur capacité à rompre les liaisons hydrogène de la cellulose rendent possible des réactions à température modérée (80°C)

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15

Uusi-Tarkka, Eija Katariina. "Bio-based nonwoven fabric-like materials produced by paper machines." Thesis, Högskolan i Borås, Akademin för textil, teknik och ekonomi, 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:hb:diva-10690.

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The purpose of this thesis is, in collaboration with the Swedish company Innventia, to explore the possibilities of using paper machines to create fabric-like nonwoven materials. As part of a relatively new research-area, it serves as some of the ground knowledge that is needed to drive this field forward. The research of this thesis is born from the increasing need for more environmental friendly textiles, and to find new uses for the paper production facilities and companies that are currently experiencing a decline in paper production. The materials used in the research were produced with t

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Esposito, Tiziana. "Technologies for the development of health products based on up-cycling of agro-food by-products." Doctoral thesis, Universita degli studi di Salerno, 2019. http://elea.unisa.it:8080/xmlui/handle/10556/4268.

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2017 - 2018<br>The agro-industrial processing produces large volumes of wastes and by-products. In recent years, wastes and by-products have attracted attention as an excellent renewable source of active compounds with beneficial effects for the human health. However, in that respect a substantial amount of research and complex processes of extraction, characterization and technological transformation are necessary for an efficient use of by-products with the purpose to develop stable and bioactive ingredients for pharmaceutical, food, and nutraceutical products. The main problems for an effic

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17

Dinu, Roxana-Mihaela. "Valorisation macromoléculaire des humines, de la kératine et des lignines par copolymères et composites durables." Thesis, Université Côte d'Azur, 2020. http://theses.univ-cotedazur.fr/2020COAZ4030.

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Des études scientifiques et industrielles sont axées pour remplacer les ressources fossiles par des matières premières renouvelables, pour réduire et valoriser les déchets industriels afin de développer de nouveaux matériaux verts et innovants. La conversion de la lignocellulose en bioraffineries par hydrolyse acide permet la valorisation de cette biomasse en produits plateforme à valeur ajoutée (HMF, FF, LA, etc.), mais provoque également la formation d'un sous-produit : les humines. Les plumes représentent de 5 à 7% de la masse corporelle d'un poulet adulte, étant l'un des principaux déchets

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Cousin, Thibault. "Synthesis and molecular modelling of bio-based polyamides." Phd thesis, INSA de Lyon, 2013. http://tel.archives-ouvertes.fr/tel-00952848.

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In the current context of oil resources rarefaction, the development of biobased polymers is of major importance. The present work focused on the development of a biobased amorphous polyphthalamide, based on furan-2,5-dicarboxylic acid. The first part of the study was devoted to the development of a molecular modelling protocol that could calculate the glass transition temperature of polyphthalamides with accuracy. In order to do this, model polyphthalamides based on isophthalic, terephthalic acid and hexamethylene diamine were synthesized and characterized as well as simulated. By comparison

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19

Shao, Heng. "Efficient Production of Plat-form from Organic Acids from Ligocellulosic and Algal Biomass Carbohydrates." University of Toledo / OhioLINK, 2015. http://rave.ohiolink.edu/etdc/view?acc_num=toledo1420847319.

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20

BURLINI, Ilaria. "Cereal by-products as source of bioactive molecules for cosmetic applications: a sustainable approach based on eco-pharmacognostic research." Doctoral thesis, Università degli studi di Ferrara, 2020. http://hdl.handle.net/11392/2478831.

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Il presente progetto di dottorato di ricerca ha l'obiettivo di valorizzare i sottoprodotti cerealicoli, attraverso lo sviluppo di processi estrattivi green e di ipotesi applicative nell'industria cosmetica. Per il presente progetto sono stati inizialmente selezionati i cereali con il massimo interesse applicativo: grano duro, riso e mais. Gli acidi fenolici sono stati estratti con estrazione assistita tramite ultrasuoni, idrolisi alcalina, idrolisi enzimatica e tecniche ibride per massimizzare le rese estrattive e minimizzare l'impatto ambientale rispetto ad altre tecniche convenzionali. Gli e

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21

Rosa, Latapie Séverine. "Modélisation et optimisation des performances thermiques des matériaux bio et géosourcés par approche multi-échelle : apport à la valorisation d'une large gamme de co-produits agricoles." Electronic Thesis or Diss., Université de Toulouse (2023-....), 2024. http://www.theses.fr/2024TLSES152.

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Face aux défis du 21° siècle, les questions énergétiques et environnementales sont au cœur des préoccupations de nos sociétés. Le secteur du bâtiment, parmi les plus impactants, doit s'emparer de cette réalité pour opérer une transition à la fois rapide, pertinente et durable. L'utilisation de matériaux de construction bio et géo-sourcés permet d'améliorer le confort intérieur et l'efficacité énergétique du bâti tout diminuant l'impact environnemental de la construction. Dans ce cadre, le béton de chanvre est une alternative prometteuse qui se développe depuis plusieurs années. Cependant, de n

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Málaga, Adalberto Medina. "O macro-ambiente do desenvolvimento dos biocombustíveis." reponame:Biblioteca Digital de Teses e Dissertações da UFRGS, 2007. http://hdl.handle.net/10183/10037.

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A utilização das fontes não-renováveis de energia, como o petróleo e seus derivados, tem proporcionado elevados índices de desenvolvimento em algumas nações, mas também tem causado sérios impactos ao meio ambiente. Diante disso, este trabalho visualiza as mudanças do macro-ambiente dos biocombustíveis no transcurso do tempo, num olhar comparativo a uma rota energética proposta nos anos 30 nos Estados Unidos pelo Movimento Chemurgic. Transcorridos 70 anos de uso de derivados de petróleo, a produção e o uso de biocombustíveis passou a ser um tema de grande relevância no âmbito energético mundial

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23

Alves, Margot. "Carbon dioxide and vegetable oil for the synthesis of bio-based polymer precursors." Thesis, Bordeaux, 2016. http://www.theses.fr/2016BORD0129/document.

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Bien que thermodynamiquement et cinétiquement stable, le dioxyde de carbone est une molécule qui peut être convertie en carbonates cycliques à cinq ou six atomes respectivement au départ d’époxydes ou d’oxétanes moyennant l’utilisation d’un catalyseur approprié. Ces carbonates cycliques sont utilisés comme solvants verts, électrolytes pour les batteries au lithium ou comme intermédiaires pour la synthèse de polymères. Cependant, les performances catalytiques doivent être améliorées en particulier pour lecouplage du CO2 avec les huiles végétales époxydées ou les oxétanes. Dans ce contexte, nous

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Zhou, Xinxin. "Procédé de synthèse, propriétés et applications d'élastomères techniques à base d‘itaconates." Thesis, Université de Lorraine, 2018. http://www.theses.fr/2018LORR0006.

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Cette thèse traite la préparation et l'application d’élastomères bio-sourcés et leurs nanocomposites qui sont les suivants : (1) des nanocomposites basés sur le 3,9 - bis [ethyl-2-à 1,1 terne {b-(3-tertbutyle-4-hydroxy-5-méthylephényle) propionyloxy} éthyle]-2,4,8,10-tetraoxaspiro-[5,5]-undécane (AO-80) et le poly(itaconate de diisoamyle-co-isoprène) (PDII), (2) le poly(itaconate de dibutyle-co-isoprène-co-acide méthacrylique) (PDIM), un élastomère carboxylique bio-sourcé, et des nanocomposites basés sur cet élastomère et la silice ou les nanotubes de halloysite, (3) le poly(itaconate de dibut

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25

Gouteyron, Antoine. "Nouveaux monomères biosourcés à haute rigidité à destination des revêtements polyesters." Thesis, Lyon 1, 2015. http://www.theses.fr/2015LYO10266.

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Les résines polyesters sont des composants présents dans une majorité des revêtements et matériaux utilisés aujourd'hui. Ils sont obtenus par polycondensation de polyols, polyacides et monoacides. Les réglementations évoluant (REACH) et le public étant de plus en plus sensible à l'origine et l'impact des produits qu'il consomme, la substitution des produits pétrosourcés vers des matières premières renouvelables semble évidente. De nouveaux polyesters, composés majoritairement de monomères biosourcés, ont donc été synthétisés. L'acide L-(+)-tartrique a été principalement étudié, ce monomère qua

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Roumeas, Laurent. "Étude des voies de dépolymérisation chimique des tanins condensés : vers une production industrielle de composés phénoliques biosourcés." Thesis, Montpellier 1, 2013. http://www.theses.fr/2013MON13522.

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La substitution des composés carbonés d'origine fossile par des matières premières renouvelables représente un enjeu majeur et stratégique pour l'environnement, l'économie, et la santé publique. Nous nous sommes particulièrement intéressés au cas des dérivés du phénol, largement utilisés dans le domaine des matériaux synthétiques (résines, plastiques). Des travaux antérieurs ont démontré le potentiel des monomères de flavanols, sous-unités constitutives des chaines polymériques des tanins condensés comme substituts aux phénols issus de la pétrochimie, tels que le bisphénol A, l'objectif du pré

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Bouchikhi, Aurélie. "Contribution à la formulation d’un béton végétal structurel à base cimentaire incorporant des co-produits / déchets de bois." Thesis, Ecole nationale supérieure Mines-Télécom Lille Douai, 2019. http://www.theses.fr/2019MTLD0009.

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Le bâtiment est un secteur particulièrement émissif en gaz à effet de serre. Pour tenter de réduire l’impact des matériaux sur l’environnement, de nombreuses recherches visent à étudier différentes alternatives pour limiter l’épuisement des ressources, la consommation d’énergie et le rejet de composés polluants. Dans ce contexte, les bétons biosourcés se positionnent comme une alternative sérieuse au béton traditionnel, avec une empreinte carbone plus faible.Cette thèse industrielle, portée par l’entreprise ALKERN, leader en France et en Belgique de produits préfabriqués en béton, a pour objec

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Thébault, Marion. "Développement de trois différents types de matériaux innovants à base de tannins." Thesis, Université de Lorraine, 2014. http://www.theses.fr/2014LORR0202/document.

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Les tannins sont des extraits chimiques présentant une alternative naturelle aux produits chimiques de type phénol ou résorcinol issus du pétrole. Ils sont déjà utilisés industriellement pour la synthèse d’adhésifs utilisés pour la fabrication de produits à base de bois tels que les panneaux de particules et les contreplaqués, mais généralement en utilisant toujours du formaldéhyde comme durcisseur pour améliorer leur pouvoir collant. Les premiers types de produits développés dans cette thèse sont des résines adhésives pour fabriquer des panneaux de particules, synthétisées à partir de tannins

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Brouard, Yoann. "Caractérisation et optimisation d'un composite biosource pour l'habitat." Thesis, Tours, 2018. http://www.theses.fr/2018TOUR4024.

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Cette étude a pour objet de comparer les propriétés acoustiques, mécaniques et hygrothermiques de différents biocomposites destinée à l’isolation des bâtiments à base de granulats issus de co-produits végétaux et d’un liant à base d’argile. Nous avons d’abord analysé les matières premières afin d’obtenir d’une part la masse volumique et les propriétés thermiques et hydriques des granulats végétaux et les caractéristiques minéralogiques et gravimétriques de la terre crue sélectionnée d’autre part. L’évolution de la conductivité thermique des mélanges terre:granulats végétaux a été étudiée à dif

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Hinostroza, Ramos Jessica Viviana. "Synthèse de métallophosphates poreux biosourcés pour des applications environnementales et biomédicales." Thesis, Mulhouse, 2017. http://www.theses.fr/2017MULH9658/document.

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Cette thèse s’intéresse à la synthèse biosourcée de métallophosphates poreux pour trouver des solutions à l’épuisement des réserves naturelles de sources de phosphore qui servent habituellement à l’élaboration des réactifs inorganiques phosphorés (ex. H3PO4). Ceux-ci sont notamment utilisés pour la synthèse des métallophosphates poreux. Ces derniers possèdent des propriétés importantes dans les domaines de la catalyse, de l’adsorption et de la séparation. Toutefois il existe d’autres domaines peu étudiés tels que le biomédical et l’environnement où ces matériaux sont aussi utilisés. Au cours d

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Nogueira, Leila de Mello Yañez. "Estabilidade versus flexibilidade: a dicotomia necessária à inovação na gestão de recursos humanos em uma organização pública, estatal eestratégica como Bio-Manguinhos / Fiocruz." reponame:Repositório Institucional da FIOCRUZ, 2009. https://www.arca.fiocruz.br/handle/icict/2500.

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Made available in DSpace on 2011-05-04T12:36:29Z (GMT). No. of bitstreams: 0 Previous issue date: 2009<br>Este trabalho propõe analisar o fenômeno da terceirização desenvolvido ao longo das duas últimas décadas em Bio-Manguinhos. Trata-se de um estudo de caso realizado na unidade de produção de vacinas e reagentes para diagnóstico da Fundação Oswaldo Cruz. Inicialmente foi realizado um estudo de cenário, analisando a política de gestão do trabalho desenvolvida pelo Estado brasileiro para as instituições públicas. A seguir, a análise passou a verificar a inserção da Fiocruz nessas políticas,

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Maisonneuve, Lise. "Vegetable oils as a platform for the design of sustainable and non-isocyanate thermoplastic polyurethanes." Thesis, Bordeaux 1, 2013. http://www.theses.fr/2013BOR15218/document.

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Cette thèse porte sur la synthèse de polyuréthanes thermoplastiques plus durables à partir de dérivés des huiles végétales. La première voie étudiée est basée sur la réaction, largement utilisée, entre un diol et un diisocyanate. Aussi, pour s’affranchir de l’utilisation des diisocyanates toxiques, une approche via la polyaddition entre un bis carbonate cyclique et une diamine a également été étudiée. Pour ce faire des précurseurs bi-fonctionnels : diols, bis carbonates cycliques à 5 et 6 chainons et diamines ont été préparés à partir de dérivés de l’huile de tournesol (oléate de méthyle) et d

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Ismail, Brahim. "Contribution au développement et optimisation d’un système composite biosourcé-enduit de protection pour l’isolation thermique de bâtiment." Thesis, Orléans, 2020. http://www.theses.fr/2020ORLE3112.

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Les travaux de recherche présentés dans cette thèse portent sur la formulation, caractérisation et modélisation des propriétés physiques et mécaniques des matériaux biosourcés à base de granulats végétaux (paille céréalière) destinés à l’isolation thermique et la réhabilitation énergétique des bâtiments. Les objectifs des travaux de cette thèse, inscrite dans le cadre du projet PEPITE, sont l’optimisation des performances thermiques, mécaniques et hydriques des matériaux biosourcés développés dans le cadre des travaux antérieurs et le développement d’un enduit de protection pour une solution t

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Rosén, Therese. "RosaNovum : En studie om att skapa materialacceptans genom en Material driven designprocess för en cirkulär ekonomi." Thesis, Malmö universitet, Institutionen för konst, kultur och kommunikation (K3), 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:mau:diva-44451.

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Cirkulär ekonomi bygger på principerna om att designa bort avfall, där avfall ses som en råvaruresurs. För att övergå till ett fossilfritt samhälle kommer material från förnyelsebara råvaror att behövas. Biobaserade material har oftast inte samma tekniska egenskaper och estetiska uttryck som befintliga material, biobaserade DIY-material utvecklade från okonventionell råvaruresurs kan väcka starka positiva och negativa reaktioner hos användarna. Studien har undersökt hur man i en Material driven designprocess genom form och kultur kan skapa acceptans för ett biobaserat DIY material från en okon

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Muralidhara, Anitha. "Physico-chemical safety issues pertaining to biosourced furanics valorization with a focus on humins as biomass resource." Thesis, Compiègne, 2019. http://www.theses.fr/2019COMP2508.

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Le travail de recherche présenté dans ce manuscrit fait partie intégrante d’un projet de recherche collaborative financé par l’Union-Européenne (Il s’agit d’un projet H2020 de type « Marie-Curie Action »), dénommé HUGS (pour « HUmins as Green and Sustainable precursors for eco-friendly building-blocks and materials »). Ce projet de recherche implique 5 partenaires (INERIS/UTC, France, Avantium, Pays-Bas, Université de Sophia Antipolis/CNRS, France, l’université de Cordoue, Espagne et le LIKAT de l’université de Rostock en Allemagne). La recherche menée dans ce projet est essentiellement struct

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Ghosh, Amrita. "Cycloaddition-Based Approaches to Bio-active Natural Products." Thesis, 2019. http://hdl.handle.net/10821/8197.

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Natural products regime has been recognized as an invaluable source of compounds of medicinal importance. While some natural products are directly used as drugs, some drugs are derived from natural products by modification of structures. In some cases the pharmacophore is placed in a new backbone that replaces the core skeleton present in the natural product. Thus synthesis of natural products continues to be in the fore front of organic chemistry research. Carbocyclic compounds having ring sizes four to six are found in a large number of natural products with promising biological activities.

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Revu, Omkar. "Total Synthesis of Bio-Active Macrolide Natural Products and Sulfinamide Based Ligands in Asymmetric Catalysis." Thesis, 2015. http://etd.iisc.ac.in/handle/2005/3843.

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The thesis entitled “Total synthesis of bio-active macrolide natural products and sulphonamide based ligands in asymmetric catalysis” is divided into two chapters. First chapter of the thesis describes the total synthesis of bio-active macrolide natural products cladospolide A 1, seimatopolide A 2 and synthetic studies towards aetheramides A 3 and B 4 (Figure 1). Figure 1: Bio-active macrolide natural products. Section A of chapter 1 describes the enantiospecific total synthesis of cladospolide A (ent-1). Cladospolide A was isolated from three different sources such as culture filtrate

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Revu, Omkar. "Total Synthesis of Bio-Active Macrolide Natural Products and Sulfinamide Based Ligands in Asymmetric Catalysis." Thesis, 2015. http://etd.iisc.ernet.in/2005/3843.

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The thesis entitled “Total synthesis of bio-active macrolide natural products and sulphonamide based ligands in asymmetric catalysis” is divided into two chapters. First chapter of the thesis describes the total synthesis of bio-active macrolide natural products cladospolide A 1, seimatopolide A 2 and synthetic studies towards aetheramides A 3 and B 4 (Figure 1). Figure 1: Bio-active macrolide natural products. Section A of chapter 1 describes the enantiospecific total synthesis of cladospolide A (ent-1). Cladospolide A was isolated from three different sources such as culture filtrate

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Antunes, Ana Rita Novais Duarte. "Performance of earth based products reinforced with rice husk for indoor refurbishment." Master's thesis, 2017. http://hdl.handle.net/10362/30812.

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The use of environment friendly materials, with low environmental impact and low production costs is becoming an issue of great interest in the building sector. It is known that there is a need to reduce the energy requirement in buildings, once they account for 40% of total energy consumption in European Union (EU). The adoption of sustainable and efficient solutions could be the answer to improve the energy performance of buildings, leading to a reduction of the energy demand and cost for the building sector. From a global point of view the use of bio-based materials provides low-cost and

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Liu, Chia-Wei, and 劉家瑋. "Potential Customers Analysis for the Natural Fruit and Vegetable Enzyme Products Produced by One Power Bio Technology Company -- Based on Customers of the Cosmetology Clinics in Kaohsiung Pingtung Area." Thesis, 2013. http://ndltd.ncl.edu.tw/handle/21919303740671655888.

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碩士<br>國立屏東科技大學<br>農企業管理系所<br>101<br>The potential customer for One PowerBio Technology Company.On the magin products ofby theproduction of naturalfruits and vegetablesenzyme products. This study was to investigate the One Power Bio Technology Company. in product marketing, sales channels, and to explore the company's practices and promotional products to enhance product sales effectiveness. There are two margin part types of enzyme products with enhanced and maintenance, maintenance-type herbal ingredients belonging to the lowest, enhanced herbal ingredients belonging to a higher,mainly due to

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Brosowski, André. "National Resource Monitoring for Biogenic Residues, By-products and Wastes: Development of a Systematic Data Collection, Management and Assessment for Germany." 2020. https://ul.qucosa.de/id/qucosa%3A75362.

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The reduction of greenhouse gases in the atmosphere and the transformation from a fossil-based to a bio-based economy are declared social, political and entrepreneurial goals. The efficient material and energetic use of biogenic residues, by-products and wastes offers numerous means of working towards these goals. However, it is still unclear what raw materials can be understood under these collective terms, what quantities exist across sectors and what additional contribution can be expected from their improved use. In the context of this thesis, an internationally applicable method has been

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"Production of Renewable Fuels from Bio-Based Feedstocks: A Viable Path to Enhance Value Chain and Sustainability." Doctoral diss., 2020. http://hdl.handle.net/2286/R.I.63068.

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abstract: The continued reliance on fossil fuel for energy resources has proven to be unsustainable, leading to depletion of world reserves and emission of greenhouse gases during their combustion. Therefore, research initiatives to develop potentially carbon-neutral biofuels were given the highest importance. Hydrothermal liquefaction (HTL, a thermochemical conversion process) of microalgae is recognized as a favorable and efficient technique to produce liquid biofuels from wet feedstocks. In this work, three different microalgae (Kirchneriella sp., Galdieria sulphuraria, Micractinium sp.) gr

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Carneiro, Jade Muller. "Life cycle assessment of a biopolymer film produced from mango wastes performed at an early development stage." Master's thesis, 2020. http://hdl.handle.net/10316/93861.

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Dissertação de Mestrado em Energia para a Sustentabilidade apresentada à Faculdade de Ciências e Tecnologia<br>O desenvolvimento de plásticos de base biológica é essencial para a transição para uma bioeconomia, especialmente materiais produzidos a partir de resíduos agrícolas. A avaliação do ciclo de vida (ACV) pode ser usada para avaliar o desempenho ambiental de tais materiais. No entanto, avaliar novos produtos, em baixos Níveis de Prontidão Tecnológica, requer uma abordagem inovadora na ACV, que envolve escalonamento de processos e cenários de produção futuros. O objetivo deste estudo é av

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