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Microbial Biopolymers: The Exopolysaccharides

  • Angelina
  • S. V. N. Vijayendra

Abstract

Microorganisms produce several biopolymers. Of these, intracellularly produced polyhydroxyalkanoates (PHAs) and extracellularly produced exopolysaccharides (EPS) are gaining importance over the other biopolymers. These naturally produced polymers can replace plant-based or petroleum-derived polymers. There are innumerable reports and reviews on the production of PHA and EPS by several bacteria, fungi, actinomycetes, and algae. This chapter briefly gives an introduction to PHA and provides recent developments in the genetic and metabolic pathways for the synthesis of microbial EPS. Different strategies used for fermentative production and various means of downstream processing are discussed. Possible ways to minimize the cost of production and downstream processing are covered in this chapter. Applications of these EPS in various fields such as agriculture, cosmetics, foods, medical and healthcare industry, mining, oil recovery, packaging, pharmaceuticals, printing and textile industry, wastewater treatment, etc., are presented. The potential of these polymers indicates that these microbial cell factories can be exploited for the better of mankind.

Keywords

Lactic Acid Bacterium Bacterial Cellulose Xanthomonas Campestris Pullulan Production Curdlan Production 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

Notes

Acknowledgments

The authors wish to thank the Director of CSIR-CFTRI, for providing necessary funds and facilities. Angelina is thankful to UGC for granting Maulana Azad National Fellowship.

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Copyright information

© Springer India 2015

Authors and Affiliations

  1. 1.Microbiology and Fermentation TechnologyCSIR-Central Food Technological Research InstituteMysoreIndia

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