Zhejiang Daxue xuebao. Lixue ban (Nov 2010)

Properties of double-liquid phase fermentation system for extracellular polysaccharide production of Ganoderma lucidum(灵芝胞外多糖双液相发酵体系的特性)

  • LIWei-qi(李卫旗),
  • WUXue-qian(吴学谦),
  • FENGYi-li(冯依力),
  • CHENGJun-wen(程俊文),
  • HELiang(贺亮)

DOI
https://doi.org/10.3785/j.issn.1008-9497.2010.06.017
Journal volume & issue
Vol. 37, no. 6
pp. 686 – 690

Abstract

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用豆油作为氧载体加入发酵液中形成双液相发酵体系,以改善灵芝胞外多糖的发酵状况.实验表明：常见的氧载体材料在双液相发酵过程中不为灵芝菌体所利用,仅起到促进溶氧的效果；在灵芝胞外多糖的双液相发酵体系中, KLa值明显提高,溶氧水平(DO)有显著改善,发酵液的运动黏度µ有所降低,有助于降低搅拌能耗；氧载体改善了质量传递,提高了细胞的代谢水平,使胞外多糖的产量提高了44%,发酵周期缩短了约17%.说明双液相发酵体系对灵芝胞外多糖发酵是一种新型有效的途径.

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