Characterization of exopolysaccharides produced by cyanobacteria isolated from Polynesian microbial mats.

Abstract:

:Six cyanobacterial isolates recovered from Polynesian microbial mats, called "kopara," were cultured using laboratory-closed photobioreactors and were shown to produce exopolymers as released and capsular exopolysaccharides (EPS). These polymers have been chemically characterized using colorimetric and elemental assays, infrared spectrometry, and gas chromatography. Both capsular and released EPS consisted of 7 to 10 different monosaccharides with neutral sugars predominating. Interestingly, four isolates exhibited sulfate contents ranging from 6% to 19%. On the basis of preliminary data, cyanobacteria from this unusual ecosystem appear to be an important source of novel EPS of a great interest in terms of their biological activities.

journal_name

Curr Microbiol

journal_title

Current microbiology

authors

Richert L,Golubic S,Guédès RL,Ratiskol J,Payri C,Guezennec J

doi

10.1007/s00284-005-0069-z

keywords:

subject

Has Abstract

pub_date

2005-12-01 00:00:00

pages

379-84

issue

6

eissn

0343-8651

issn

1432-0991

journal_volume

51

pub_type

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