生物技术通报 ›› 2015, Vol. 31 ›› Issue (2): 179-186.doi: 10.13560/j.cnki.biotech.bull.1985.2015.02.027

• 研究报告 • 上一篇    下一篇

一株Bacillus sublitis JH-1发酵产木聚糖酶培养基的响应面优化

王春明1, 钟超1, 王凤学1, 黄凡1, 贾红华1, 韦萍1, 赵印2   

  1. 1.南京工业大学生物与制药工程学院,南京 211816;
    2.河南天冠企业集团有限公司车用生物燃料技术国家重点实验室,南阳 473000
  • 收稿日期:2014-07-01 出版日期:2015-02-05 发布日期:2015-02-06
  • 作者简介:王春明,女,硕士研究生,研究方向:生物能源;E-mail:aishuiyuasy@sina.com
  • 基金资助:
    国家"863"计划(2012AA021405),车用生物燃料技术国家重点实验室开放课题(2013024),广西科学研究与技术开发计划(桂科重1348004-4)

Optimization of Bacillus sublitis JH-1 for Xylanase Production by Response Surface Analysis

Wang Chunming1, Zhong Chao1, Wang Fengxue1, Huang Fan1, Jia Honghua1, Wei Ping1, Zhao Yin2   

  1. 1. Colloge of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, Nanjing 211816;
    2. StateKeyLaboratoryofMotorVehicleBiofuelBiotechnology, Henan Tianguan Group Co. Ltd., Nanyang 473000
  • Received:2014-07-01 Published:2015-02-05 Online:2015-02-06

摘要: 利用刚果红透明圈法从秸秆堆肥中筛选出一株产木聚糖酶菌株Bacillus sublitis JH-1,以单因素试验为基础,采用响应面试验设计对Bacillus sublitis JH-1液态发酵产木聚糖酶的培养基进行了优化,得到产木聚糖酶发酵最适条件为:培养温度33℃,pH值6.0,麦芽糖浓度为2.6%,酵母粉浓度为1.2%,KH2PO4浓度为1.2%,发酵产酶量比优化前提高了1.8 倍。

关键词: Bacillus sublitis JH-1, 木聚糖酶, 响应面法

Abstract: Xylanase producing strain Bacillus sublitis JH-1 was screened from straw compost by Congo red transparent circlemethod. According to the single-factor experiments, response surface methodology was applied to optimize the liquid state fermentation conditions of Bacillus sublitis JH-1 for xylanase production, with the optimal conditions being listed as follows:temperature as 33℃, pH value as 6.0, maltose as 2.6%(m/V), YE as 1.2%(m/V), KH2PO4 as 1.2%(m/V). Increased 1.8 times in average as compared with preliminary culture and consistent with the maxmum predicted value.

Key words: Bacillus sublitis JH-1, xylanase, Response Surface Methodology