Dépôt numérique

Biopolymers Synthesis and Application.

Chaabouni, Emna, Gassara, Fatma et Brar, Satinder Kaur (2014). Biopolymers Synthesis and Application. In: Biotransformation of Waste Biomass into High Value Biochemicals. Springer, New York, p. 415-443. ISBN 978-1-4614-8004-4

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Living organisms, namely, prokaryotes and eukaryotes, are able to synthesize a variety of polymers, such as nucleic acids, proteins, and other polyamides, polysaccharides, polyesters, polythioesters, polyanhydrides, polyisoprenoids, and lignin. Microorganisms provide a source of biopolymers and biopolysaccharides from renewable sources. Bacteria are capable of yielding biopolymers with properties comparable to plastics derived from petrochemicals, though more expensive. They have the additional advantage of being biodegradable. A wide range of microbial polysaccharides have been studied, and structure/function relationships for a number of these macromolecules have been determined. These biopolymers accomplish different essential and beneficial functions for the organisms. Among the biopolymers produced, many are used for various industrial applications. Currently, the biotechnological production of polymers has been mostly achieved by fermentation of microorganisms in stirred bioreactors. The biopolymers can be obtained as extracellular or intracellular compounds. Alternatively, biopolymers can also be produced by in vitro enzymatic processes. However, the largest amounts of biopolymers are still extracted from plant and animal sources. Biopolymers exhibit fascinating properties and play a major role in the food processing industry, e.g., modifying texture and other properties. Among the various biopolymers, polysaccharides and bioplastics are the most important in the food industry. This chapter will discuss the sources of polymers, their biosynthesis by different organisms, and their application in different fields.

Type de document: Chapitre de livre
Mots-clés libres: polylactic acid; natural rubber; synthetic polymer; synthetic biology; natural polymer
Centre: Centre Eau Terre Environnement
Date de dépôt: 10 avr. 2019 15:28
Dernière modification: 10 avr. 2019 15:28
URI: https://espace.inrs.ca/id/eprint/3750

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