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Updated: Aug 7, 2026

Looking Outwards: Isolation of Cyanobacterial Released Carbohydrate Polymers and Proteins
Published on: May 27, 2019
A new exopolysaccharide produced by marine Cyanothece sp. 113
1UNESCO Chinese Center of Marine Biotechnology, Ocean University of China, Yushan Road, Qingdao, China. zhenming@sdu.edu.cn
Abstract:
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, (1)H NMR, (13)C 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.
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