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Control of Grifola frondosa Morphology by Agitation and Aeration for Improving Mycelia and Exo-Polymer Production

文献类型： 外文期刊

作者： Cui, Feng-Jie 1 ; Chen, Xiao-Xiao 1 ; Liu, Wei-Min 1 ; Sun, Wen-Jing 1 ; Huo, Shuhao 1 ; Yang, Yan 2 ;

作者机构： 1.Jiangsu Univ, Sch Food & Biol Engn, Zhenjiang 212013, Peoples R China

2.Shanghai Acad Agr Sci, Natl Engn Res Ctr Edible Fungi, Shanghai 201403, Peoples R China

3.Jiangxi Prov Engn & Technol Ctr Food Addit Biopro, Dexing 334221, Peoples R China

关键词： Grifola frondosa;Agitation intensity;Aeration rate;Morphology;Exo-polymer;Polysaccharide compositions

期刊名称：APPLIED BIOCHEMISTRY AND BIOTECHNOLOGY （ 影响因子：2.926； 五年影响因子：2.685 ）

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收录情况： SCI

摘要： The present study describes the improved mycelia and exo-polymer production under control of Grifola frondosa morphology by changing the aeration rate and agitation intensity in a 25-L stirred fermentor. The aeration rate of 1.0 vvm yielded a highest mycelia biomass of 24.754 g/L with the lowest pellet percentage of 20.5 %. The maximum exo-polymer (2.324 g/L) was achieved at 0.75 vvm with mycelia polysaccharide production (0.321 g/g), whereas clumps and filaments dominated the ratios of 45.6 and 33.9 %, respectively. The change of aeration rate and agitation intensity had slight influence on the monosaccharide compositions in exo-polymers and significantly affected glucose and mannose contents in the mycelia polysaccharides. These findings will provide a clue for exploring the relationship between fermentation parameters, morphologies, and polysaccharide synthesis pathway of G. frondosa.

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