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Influence of nutritional conditions on exopolysaccharide production by submerged cultivation of the medicinal fungus Shiraia bambusicola

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Abstract

Maltose and yeast extract were the most favourable carbon and nitrogen sources for exopolysaccharide production by submerged culture of Shiraia bambusicola WZ-003, and initial maltose and yeast extract concentrations were at 30 and 3 g l−1, respectively. Plant oils could increase the mycelial growth and exopolysaccharide production in tested concentration. K+ and Mg2+ could enhance the mycelial growth and exopolysaccharide biosynthesis. The optimal cultivation temperature and initial pH were found to be 26°C and 6.0, respectively. Exopolysaccharide concentration reached 0.53 g l−1 in 15-l fermenter under optimal nutritional conditions.

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Acknowledgements

This research was supported by Zhejiang Department of Science and Technology (Project No. 2007C23012), P.R. China.

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Authors and Affiliations

  1. College of Biosystem Engineering and Food Science, Zhejiang University, 268 Kaixuan Road, Hangzhou, 310029, People’s Republic of China

    Hailong Yang & Guoqing He

  2. School of Life and Environmental Sciences, Wenzhou University, 276 Xueyuan Road, Wenzhou, 325027, People’s Republic of China

    Hailong Yang

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  1. Hailong Yang
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Correspondence to Guoqing He.

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Yang, H., He, G. Influence of nutritional conditions on exopolysaccharide production by submerged cultivation of the medicinal fungus Shiraia bambusicola . World J Microbiol Biotechnol 24, 2903–2907 (2008). https://doi.org/10.1007/s11274-008-9832-1

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  • DOI: https://doi.org/10.1007/s11274-008-9832-1

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