Preparation and characterization of thermoplastic starch/zein blends
Elisângela Corradini,Antonio J. F. Carvalho,Antônio Aprígio da Silva Curvelo,José Augusto Marcondes Agnelli,Luiz H. C. Mattoso +4 more
TLDR
The use of zein in thermoplastic starch compositions causes a decrease in the water sensitivity of these materials and lower its melt viscosity during processing making zein a suitable and very promising component in TPS compositions as mentioned in this paper.Abstract:
Blends of starch and zein plasticized with glycerol were prepared by melting processing in an intensive batch mixer connected to a torque rheometer at 160 °C. The resulting mixtures were compression molded and then characterized by scanning electron microscopy, differential scanning calorimetry, wide-angle X ray diffraction and water-absorption experiments. The blends were immiscible, showing two distinct phases of starch and zein. The water uptake at equilibrium and its diffusion coefficient were determined. The water uptake at equilibrium decreased with increasing zein content. The diffusion coefficient fell sharply on addition of 20% zein and remained constant as zein content was increased. No appreciable effect of zein on starch crystallization was observed by X ray diffraction. The use of zein in thermoplastic starch compositions causes a decrease in the water sensitivity of these materials and lower its melt viscosity during processing making zein a suitable and very promising component in TPS compositions.read more
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Compatibilization of starch–zein melt processed blends by an ionic liquid used as plasticizer
Eric Leroy,Pierre O. Jacquet,Gildas Coativy,Gildas Coativy,Anne Laure Reguerre,Denis Lourdin +5 more
TL;DR: The characterization of the materials indicates that, compared to glycerol, the use of [BMIM]Cl leads to less hygroscopicity, a more efficient plasticization of both starch and zein phases and a compatibilization of starch/zein blends.
Journal ArticleDOI
Nanobiocomposites of Carrageenan, Zein, and Mica of Interest in Food Packaging and Coating Applications
TL;DR: The nanocomposites of a red-algae-derived carrageenan, mica, and their blends with zein prolamine obtained by solvent casting can have significant potential to develop packaging films and coatings for shelf-life extension of food products.
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Active and sustainable materials from rice starch, fish protein and oregano essential oil for food packaging
TL;DR: In this article, the use of rice starch and fish protein to form sustainable blends represents an interesting alternative for the production of active packaging and for the development of eco-friendly technologies.
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Sustainable use of cassava (Manihot esculenta) roots as raw material for biocomposites development
TL;DR: In this paper, the use of cassava roots peel and bagasse as natural fillers of TPS materials based on cassava starch was investigated, and a deep insight into biocomposites microstructure was performed in order to support mechanical and barrier properties of the final materials.
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Material extrusion of plant biopolymers: Opportunities & challenges for 3D printing
Laurent Chaunier,Laurent Chaunier,Sofiane Guessasma,Sofiane Belhabib,Guy Della Valle,Denis Lourdin,Eric Leroy +6 more
TL;DR: In this article, the benefits and challenges of using plant biopolymers in 3D printing by Material Extrusion (ME) are considered on the basis of a review of additive manufacturing (AM) techniques applicable to Biopolymers, the current material specifications required to comply with the ME processing window, and modeling and optimizing the process.
References
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Book
The mathematics of diffusion
TL;DR: Though it incorporates much new material, this new edition preserves the general character of the book in providing a collection of solutions of the equations of diffusion and describing how these solutions may be obtained.
Journal ArticleDOI
Sustainable Bio-Composites from Renewable Resources: Opportunities and Challenges in the Green Materials World
TL;DR: The combination of bio-fibers such as kenaf, hemp, flax, jute, henequen, pineapple leaf fiber, and sisal with polymer matrices from both nonrenewable and renewable resources to produce composite materials that are competitive with synthetic composites requires special attention as discussed by the authors.
Journal ArticleDOI
Plasticized Starch/Tunicin Whiskers Nanocomposites. 1. Structural Analysis
M. Neus Anglès,Alain Dufresne +1 more
TL;DR: In this paper, the composites were conditioned at various moisture contents in order to evaluate the effect of amylopectin on the composite structure, and the resulting films were characterized using scanning electron microscopy, differential scanning calorimetry, water absorption experiments, and wide-angle X-ray scattering.
Journal ArticleDOI
Zein: A history of processing and use
TL;DR: In this article, a review of the early literature on zein is presented, which reexamines the old literature and reconciles it with new zein research to illustrate some of the unique properties of and opportunities for zein.