生物技术通报 ›› 2014, Vol. 0 ›› Issue (1): 166-170.

• 研究报告 • 上一篇    下一篇

淡色生赤壳菌(Bionectria ochroleuca)Bo-1 菌株产生抗菌物质的发酵条件优化

刘琴英,蒋冬花,齐育平,孙蕾,陈璨,谢祥聪   

  1. 浙江师范大学 化学与生命科学学院,金华 321004
  • 收稿日期:2013-07-29 出版日期:2014-01-23 发布日期:2014-01-23
  • 作者简介:刘琴英,女,硕士研究生;研究方向: 应用微生物学;E-mail: rk371970746@163.com
  • 基金资助:
    国家自然科学基金项目(31270061)

Fermentation Optimization of Antimicrobial Substance Produced by Bionectria ochroleuca Strain Bo-1

Liu Qinying, Jiang Donghua, Qi Yuping, Sun Lei, Chen Can, Xie Xiangcong   

  1. College of Chemistry and Life Science,Zhejiang Normal University,Jinhua 321004
  • Received:2013-07-29 Published:2014-01-23 Online:2014-01-23

摘要: 以淡色生赤壳菌(Bionectria ochroleuca)Bo-1 菌株发酵液乙酸乙酯粗提物对水稻白叶枯病菌(Xanthomonas oryzae#br#pv. oryzae,Xoo)抑菌活性为检测指标,采用单因素试验优化Bo-1 菌株产生抗菌物质培养所需的碳源、氮源、无机盐;通过正交#br#试验优化培养基配方和摇瓶发酵条件。研究结果表明,Bo-1 菌株产生抗菌物质适宜的碳源、氮源和无机盐分别为淀粉、蛋白胨、#br#MgSO4?7H2 O ;优化的培养基配方为: 淀粉30 g/L,蛋白胨2 g/L,MgSO4?7H2O 0.5 g/L ;适宜的发酵条件为: 温度30℃,转速#br#150 r/min,装液量80 mL/250 mL,pH 6.5。

关键词: 淡色生赤壳菌, 正交试验, 发酵, 优化, 抑菌活性

Abstract: Based on the index of antimicrobial activity of ethyl acetate extracts from culture liquid of Bionectria ochroleuca strain Bo-1 to Xanthomonas oryzae pv. oryzae, the optimal carbon source, nitrogen source and salt for the production of antimicrobial substance by strain Bo-1 were tested by single factor experiments. The medium composition and fermentation conditions were optimized by orthogonal experiments. The results showed that the optimal carbon source, nitrogen source and salt were starch, peptone, MgSO4?7H2O, respectively. The optimal composition of the medium was 30 g/L starch, 2 g/L peptone, 0.5 g/L MgSO4?7H2O. The optimal fermentation conditions were the combination of temperature 30℃ , agitation speed 150 r/min, medium volume 80 mL/250 mL, initial pH6.5.

Key words: Bionectria ochroleuca, Orthogonal experiments, Fermentation, Optimization, Antimicrobial activity