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• 生物工程 •    下一篇

不同补料方式对灵芝菌丝体液态深层发酵合成灵芝三萜的影响

冯杰1,冯娜2,杨焱3,刘方1,张劲松3   

  1. 1. 上海市农业科学院
    2.
    3. 上海市农业科学院食用菌研究所
  • 收稿日期:2016-07-18 修回日期:2017-03-22 出版日期:2017-06-25 发布日期:2017-06-19
  • 通讯作者: 张劲松 E-mail:zhangjs8888@yahoo.com.cn
  • 基金资助:
    上海市市级农口系统青年人才成长计划资助项目;上海市农业科学院青年科技人员“助跑”计划

Effects of different feeding method on production of triterpenes by Ganoderma lucidum

  • Received:2016-07-18 Revised:2017-03-22 Online:2017-06-25 Published:2017-06-19

摘要: 在50 L发酵罐中采用四种补料培养方式对灵芝菌丝体液态深层发酵合成灵芝三萜进行了比较。实验发现通过补料可以明显地促进灵芝菌丝体的生长和灵芝三萜的合成,同时还发现不同的补料方式对菌丝体生长和灵芝三萜合成有不同的影响:采用指数补料方式可获得较高的菌丝体浓度,并提高了灵芝三萜的含量,与传统的发酵方式相比,采用此补料策略取得了较好的效果。发酵终点灵芝菌丝体干重达到17.68 g/L,灵芝三萜含量达到4.58 g/100 g干菌丝体,分别比分批发酵提高了65.70%和100.88%。

关键词: 灵芝, 深层发酵, 灵芝三萜, 补料培养

Abstract: Four feeding fed-batch culture methods for the production of triterpenes by Ganoderma lucidum G0119 were compared in 50 L fermentor. The results showed that the feeding could obviously promote the mycelium growth of G. lucidum G0119 and the synthesis of triterpenes, and different feeding methods had different influences on the mycelium dry weight and triterpenes content in the broth. The highest mycelical dry weight could obtain by exponential feeding, and the triterpenes content was higher. The results showed that the optimized feeding strategy was the best among all the fermentation strategies, and could obtain the highest mycelical dry weight (17.68 g/L) and triterpenes content (4.58 g/100 g dry mycelium), which was a significant increase (65.70% and 100.88% respectively) compared with a batch process.

Key words: Ganoderma lucidum, Submerged culture, Triterpenes, Fed-batch culture

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