Production of biopolymers by Pseudomonas aeruginosa isolated from marine source

Brazilian Archives of Biology and Technology

Nazia Jamil²  Nuzhat Ahmed¹ 

[1] ,University of the Punjab Microbiology and Molecular Genetics ,Pakistan

关键词: Biopolymers;    exopolysaccharides;    hydroabsorbent;    mcl-polyhydroxyalkanoates;    Pseudomonas aeruginosa;    Sodium gluconate;   

DOI  :  10.1590/S1516-89132008000300004

来源: SciELO

【 摘 要 】

Two bacterial strains, Pseudomonas aeruginosa CMG607w and CMG1421 produce commercially important biopolymers. CMG607w isolated from the sediments of Lyari outfall to Arabian Sea synthesize the mcl-polyhydroxyalkanoates from various carbon sources. The production of PHAs was directly proportional to the incubation periods. Other strain CMG1421, a dry soil isolate, produced high viscous water absorbing extracellular acidic polysaccharide when it was grown aerobically in the minimal medium containing glucose or fructose or sucrose as sole source of carbon. The biopolymer had the ability to absorb water 400 times more than its dry weight. This property was superior to that of currently used non-degradable synthetic water absorbents. It acted as salt filter and had rheological and stabilizing activity as well.

【 授权许可】

CC BY-NC   
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