一株产柚苷酶菌株的ARTP诱变育种及培养基的优化
作者:
作者单位:

作者简介:

通讯作者:

中图分类号:

TQ925

基金项目:


ARTP Mutain Breeding of Naringinase-Producing Strains and Optimization of Fermentation Conditions
Author:
Affiliation:

Fund Project:

  • 摘要
  • |
  • 图/表
  • |
  • 访问统计
  • |
  • 参考文献
  • |
  • 相似文献
  • |
  • 引证文献
  • |
  • 资源附件
  • |
  • 文章评论
    摘要:

    利用常温室压等离子体技术对一株产柚苷酶菌株互隔交链孢霉(A. alternate)SK.37001进行快速诱变处理,获得一株高产柚苷酶菌株 A. alternate SK.37002,与野生菌株相比,该菌株发酵酶活提高了208%。通过单因素实验确定发酵产柚苷酶的最适碳源为蔗糖,最适诱导物为柚皮苷,最适氮源为硝酸钠,利用Plackett-Burman试验筛选出影响液态摇瓶发酵酶产量的3个重要因素:硝酸钠、氯化钙、磷酸氢二钾,在此基础上运用最陡爬坡实验逼近最大响应值区域,再利用Box-Behnken设计及响应面分析法进行回归分析,获得最佳培养基配方为:1 g/L柚皮苷,5 g/L蔗糖,5 g/L硝酸钠,0.8 g/L磷酸氢二钾,0.7 g/L氯化钙,0.5 g/L氯化钾,0.5 g/L硫酸镁。采用优化后的培养基进行摇瓶发酵产柚苷酶酶活为624.73 U/mL,与模型预测接近,发酵产酶量比优化前提高了90%。

    Abstract:

    Atmospheric and room temperature plasma(ARTP) was used to mutagenize Alternaria alternate which is a naringinase-producing strain. The naringinase activity of the mutagenized stain SK37.002 reached 327.32 U/mL,which was 208% higher than that of original strain.The optimum carbon sources for naringinase-producing is sucrose. The most suitable inducer is naringin and nitrogen sources being NaNO3. According to Plackett-Burman design,NaNO3,CaCl2 and K2HPO4 were screened out of 8 factors as main affecting variables of naringinase production. Then steepest ascent method was used to approach themaximum response regions and it was followed by Box-Behnken and response surface analysis. As a result,the optimum medium formula(g/L) determined was composed of naringin 1,sucrose 5,NaNO3 5,K2HPO4 0.8,CaCl2 0.7,KCl 0.5,MgCl2 0.5. The resulting naringinase activity in fermentation broth reached up to 624.73±30.33 U/mL and was 90% higher than before which was consistent with the predicted maximum value.

    参考文献
    相似文献
    引证文献
引用本文

袁文博,江波,张涛.一株产柚苷酶菌株的ARTP诱变育种及培养基的优化[J].食品与生物技术学报,2018,37(9):962-970.

YUAN Wenbo, JIANG Bo, ZHANG Tao. ARTP Mutain Breeding of Naringinase-Producing Strains and Optimization of Fermentation Conditions[J]. Journal of Food Science and Biotechnology,2018,37(9):962-970.

复制
分享
文章指标
  • 点击次数:
  • 下载次数:
  • HTML阅读次数:
  • 引用次数:
历史
  • 收稿日期:
  • 最后修改日期:
  • 录用日期:
  • 在线发布日期: 2018-10-30
  • 出版日期:

版权所有:《食品与生物技术学报》编辑部

地址:江苏省无锡市蠡湖大道1800号  邮政编码:214122

电话:0510-85913526  电子邮件:xbbjb@jiangnan.edu.cn

技术支持:北京勤云科技发展有限公司

微信公众号二维码

手机版网站二维码