食品科学 ›› 2010, Vol. 31 ›› Issue (19): 245-249.doi: 10.7506/spkx1002-6630-201019053

• 生物工程 • 上一篇    下一篇

曲霉T3-5-1产单宁酶培养条件优化

林健辉1,黄曼曼1,陈雪香1,王 征2,肖苏尧1,曹 庸1 ,*   

  1. 1.华南农业大学食品学院
    2.湖南农业大学生物科学技术学院
  • 收稿日期:2009-12-24 修回日期:2010-07-19 出版日期:2010-10-15 发布日期:2010-12-29
  • 通讯作者: 曹庸 E-mail:caoyong2181@scau.edu.cn

Optimization of Culture Conditions for Producing Tannase by Aspergillus sp.T3-5-1

LIN Jian-hui1,HUANG Man-man1,CHEN Xue-xiang1,WANG Zheng2,XIAO Su-yao1,CAO Yong1,*   

  1. (1. College of Food Science, South China Agricultural University, Guangzhou 510640, China;
    2. College of Bioscience and Biotechnology, Hunan Agricultural University, Changsha 410128, China)
  • Received:2009-12-24 Revised:2010-07-19 Online:2010-10-15 Published:2010-12-29
  • Contact: CAO Yong E-mail:caoyong2181@scau.edu.cn

摘要:

以通过60Co 诱变得到的曲霉T3-5-1 为实验菌株,通过单因素与正交试验,对其产单宁酶的条件进行研究。结果表明:以β- 环糊精为碳源、蛋白胨为氮源、培养基初始pH 值为5.5、单宁酸质量分数为3.5%、接菌量为5%、摇瓶培养转速120r/min、250mL 三角锥瓶中装液50mL 培养基、培养温度30℃的培养条件为曲霉T3-5-1 的最佳产单宁酶条件。在此条件下,曲霉T3-5-1 产单宁酶比活力达到202.16U/mL,比优化前提高约4 倍。

关键词: 曲霉, 单宁酶, 条件优化

Abstract:

The conditions for producing tannase by a strain of Aspergillus sp.T3-5-1, which was derived from 60Co-induced mutation, were optimized using single factor and orthogonal array design methods. The optimal carbon source, nitrogen source, medium initial pH, tannic acid concentration, inocumlum size, rotational speed of shaking flask, medium volume contained in 250 mL shaking flask and culture temperature were β-cyclodextrin, peptone, 5.5, 3.5%, 5%, 120 r/min, 50 mL /250 mL and 30 ℃, respectively. The maximum tannase activity was up to 202.16 U/mL under these conditions, approximately 4-fold higher than before optimization.

Key words: Aspergillus, tannase, optimization of culture conditions

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