Production of Mycelial Biomass and Exo-polymer by Hericium erinaceus CZ-2: Optimization of Nutrients Levels using Response Surface Methodology
文献类型: 外文期刊
第一作者: Cui, Fengjie
作者: Cui, Fengjie;Zhang, Zhicai;Dong, Ying;Huang, Daming;Cui, Fengjie;Liu, Zhiqiang;Ping, Liying;Liu, Zhiqiang;Li, Yin;Ping, Lifeng
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关键词: hericium erinaceus;doehlert design;submerged culture;medium optimization;biomass;exo-polymer
期刊名称:BIOTECHNOLOGY AND BIOPROCESS ENGINEERING ( 影响因子:2.836; 五年影响因子:2.281 )
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收录情况: SCI
摘要: The Doehlert experimental design was used to optimize the production of mycelial biomass and exo-polymer from Hericium erinaceus CZ-2 in this study. Statistical analysis showed that the linear and quadric terms of 3 variables: corn flour, yeast extract, and corn steep liquor had significant effects. The optimized combination of these 3 variables was confirmed through validation experiments. The optimal conditions for higher production of mycelial biomass (19.92 g/L) were estimated when the media composition concentrations were set as: 30.85 g/L, corn flour; 2.81 g/L, yeast extract; 16.9 mL/L, corn steep liquor; 10 g/L, glucose; 1 g/L, KH_2PO_4; and 0.5 g/L, MgSO_4·7H_2O; while a maximal exo-polymer yield (1.653 g/L) could be achieved when setting concentrations of: 32.71 g/L, corn flour; 2.35 g/L, Yeast extract; 14.42 mL/L, Corn steep liquor; 10 g/L, glucose; 1 g/L, KH_2PO_4; and 0.5 g/L, MgSO_4·7H_2O. The upscale production was also investigated using a 15 L fermentor using the optimized medium.
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