Biopolymers Production from Wastes and Wastewaters by Mixed Microbial Cultures: Strategies for Microbial Selection
- PDF / 2,377,423 Bytes
- 25 Pages / 595.276 x 790.866 pts Page_size
- 46 Downloads / 183 Views
REVIEW
Biopolymers Production from Wastes and Wastewaters by Mixed Microbial Cultures: Strategies for Microbial Selection Etienne Paul1 · Yolaine Bessière1 · Claire Dumas1 · Elisabeth Girbal‑Neuhauser2 Received: 18 May 2020 / Accepted: 19 September 2020 © Springer Nature B.V. 2020
Abstract Biopolymers are gaining attractivity for the production of both commodity and speciality chemicals. Microorganisms are able to produce a large variety of biopolymers, of which some are already produced and others need to be further characterized, and even to be discovered. This review article focuses on biopolymers such as polyesters (polyhydroxyalkanoates (PHAs), polysaccharides and proteins due to their ability to provide appealing alternatives to the already established variety of fossil-based polymers. Furthermore, these bio-proteins can also stand as alternatives to proteins from agriculture. Producing microbial biopolymers from organic wastes, and by-products, by using open mixed microbial cultures (MMC) has been suggested in order to reduce production costs as well as give the waste a new resource status. MMC strengths and weaknesses analysis has shown that this system might be relevant for producing a variety of microbial polymers in the view of complex feedstock applications. Original principles have already been developed for orientating the microbial community towards certain functionalities and the research undertaken on this topic is still very active. In this present review article, we critically examine microbial enrichment strategies, discovered these last decades, to make the biopolymer production by open MMC an industrial reality. Graphic Abstract
Keywords Exopolysaccharides · Polyhydroxyalkanoates · Microbial proteins · Consortia engineering · Circular economy
* Etienne Paul etienne.paul@insa‑toulouse.fr Extended author information available on the last page of the article
13
Vol.:(0123456789)
Statement of Novelty If various review articles dealt with the production of PHAs, polysaccharides or proteins, none of them focused on a critical analysis of microbial selection strategies for the production of different microbial biopolymers by mixed microbial cultures. The choice done allows to specifically focus on how to implement a consortia engineering approach for biopolymer production. As this review article presents a deep analysis of an original microbial way to convert wastes into resources, we definitely think that it fits the scope of the Waste and Biomass Valorization journal, and will be appealing to a scientific audience.
Introduction The Need for Biopolymer Production For thousands of years, nature has provided a large variety of substances which have found numerous applications such as materials of interest in order to achieve specific functions. Biopolymers are part of those natural compounds which are highly appreciated by humans. By definition, biopolymers are macromolecules (including proteins, nucleic acids, lipids and polysaccharides) produced by living organisms such as eukary
Data Loading...
