Culture medium optimization for pigment production with RSM method

文献类型: 外文期刊

第一作者: Wu, HQ

作者: Wu, HQ;Tian, L;Zhang, JM;Sun, ZB;Huang, LP

作者机构:

关键词: response surface methodology;red pigment;optimization

期刊名称:ACTA OCEANOLOGICA SINICA ( 影响因子:1.431; 五年影响因子:1.445 )

ISSN:

年卷期:

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收录情况: SCI

摘要: Response surface methodology was used to optimize a medium for a red-pigmented marine bacterium S-9801 strain (Flavobacterium sp.). In the first optimization step the influence of yeast extract, peptone, glucose and sodium chloride on pigment production was evaluated using a fractional factorial design. Pigment production was positively influenced by glucose and sodium chloride while other components had no significant effect. In the second step the path of steepest ascent was used to approach the optimal region of the medium composition. In the third step the optimal concentration of glucose and sodium chloride was determined by a central composite design and response analysis. The optimized medium allowed pigment production (A_(535~650)) to be increased from 0.137 to 0.559, being 320% higher than the original medium.

分类号: P7

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