| Literature DB >> 20060853 |
Anupama Shrivastav1, Sanjiv K Mishra, Sandhya Mishra.
Abstract
Cyanobacteria have many unexploited potential for natural products with a huge variability in structure and biological activity. Their products are species specific and substrate+growth condition specific. Under stress conditions they are reported to produce biopolymers like EPS and PHA, which can be produced extracellularly and intracellularly, respectively. Polyhydroxyalkanoates are polymers of biological origin, they are also capable of being completely broken down to water and carbon dioxide by microorganisms found in a wide range of environments, such as soil, water, and sewage. We have studied marine cyanobacteria Spirulina subsalsa from Veraval coast, Gujarat, India, producing PHA under increased sodium chloride (NaCl) concentration (5% enhancement to the ASNIII medium), The biopolymer was chemically characterized through FTIR, NMR, TGA, and DSC. The present study shows increased PHA accumulation in S. subsalsa by twofold increased NaCl concentration in the growth media. 2010 Elsevier B.V. All rights reserved.Entities:
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Year: 2010 PMID： 20060853 DOI： 10.1016/j.ijbiomac.2010.01.001
Source DB: PubMed Journal: Int J Biol Macromol ISSN： 0141-8130 Impact factor: 6.953