A new exopolysaccharide produced by marine Cyanothece sp 113

被引:80
作者
Chi, Z. [1 ]
Su, C. D. [1 ]
Lu, W. D. [1 ]
机构
[1] Ocean Univ China, UNESCO Chinese Ctr Marine Biotechnol, Qingdao, Peoples R China
关键词
Cyanothece; exopolysaccharide; aeration rate; glucan; marine cyanobacteria;
D O I
10.1016/j.biortech.2006.05.001
中图分类号
S2 [农业工程];
学科分类号
0828 ;
摘要
Cyanothece sp. 113, a unicellular, aerobic, diazotrophic and photosynthetic marine cyanobacterium, produced 22.34 g/l of exopolysaccharide in 11 days at 29 degrees C, aeration rate of 7.0 l/min and continuous illumination with 4300 lux. After purification, the spectra of UV, IR, H-1 NMR, C-13 NMR and GC-MS analysis showed that the purified exopolysaccharide was alpha-D-1,6-homoglucan. This is first report describing linear alpha-D-1,6-homoglucan exopolysaccharide produced by marine cyanobacteria. (c) 2006 Elsevier Ltd. All rights reserved.
引用
收藏
页码:1329 / 1332
页数:4
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