Heterotrophic Fed-Batch Cultures of Nostoc flagelliforme and Production of Extracellular Polysaccharides

Shi Ru Jia; Zhen Ding; Ning Tan; Nan Wang; Pei Pei Han; Nan Nan Yuan

doi:10.4028/www.scientific.net/AMR.518-523.5468

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 518-523Heterotrophic Fed-Batch Cultures of Nostoc...

Heterotrophic Fed-Batch Cultures of Nostoc flagelliforme and Production of Extracellular Polysaccharides

Abstract:

Nostoc flagelliforme is a kind of terrestrial cyanobacterium with high economic value. Dissociated cells, which separated from a natural colony of N. flagelliforme, could be cultivated heterotrophically in the darkness on xylose and glucose under fed-batch culture conditions. Growth and extracellular polysaccharides (EPS) production in different cultures are investigated. At harvest time, the cultures contain 1.215 g•L-1 of biomass and 122.5 mg•L-1 of EPS respectively. The gravimetric EPS production rate is 17.5 mg•g-1•day-1, which is 1.65 times higher than previously reported results for heterotrophic Nostoc flagelliforme grown on xylose batch culture.

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Periodical:

Advanced Materials Research (Volumes 518-523)

Pages:

5468-5471

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.518-523.5468

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Online since:

May 2012

Authors:

Shi Ru Jia, Zhen Ding, Ning Tan, Nan Wang, Pei Pei Han, Nan Nan Yuan

Keywords:

Extracellular Polysaccharides, Fed-Batch Culture, Heterotrophic, Nostoc Flagelliforme

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