›› 2013, Vol. 40 ›› Issue (7): 182-186.

• 经验交流 • 上一篇    下一篇

几株高产蛋白酶菌株的分离鉴定及初步研究

朱绍辉1, 王斌2, 夏伟1, 张浩1, 张国雨1, 王晓丽1, 李超1, 徐权汉1   

  1. 1. 青岛中仁药业有限公司, 山东青岛 266329;
    2. 青岛大学医学院病原生物学实验室, 山东青岛 266073
  • 收稿日期:2012-03-06 出版日期:2013-07-20 发布日期:2013-07-24
  • 通讯作者: 徐权汉
  • 作者简介:朱绍辉(1979-),女,山东人,硕士,研究方向:微生态、水产养殖及制药。
  • 基金资助:
    山东省科技攻关(2007GG3WZ05009)。

Isolation, Identification and Preliminary Study of Several High Protease-producing Strains

ZHU Shao-hui1, WANG Bin2, XIA Wei1, ZHANG Hao1, ZHANG Guo-yu1, WANG Xiao-li1, LI Chao1, XU Quan-han1   

  1. 1. Qingdao ZhongRen Pharmaceutical Co., Ltd., Qingdao 266329, China;
    2. Laboratory of Pathogenic Organism, College of Medicine, Qingdao University, Qingdao 266073, China
  • Received:2012-03-06 Online:2013-07-20 Published:2013-07-24

摘要: 从采集的245份海洋生物及环境样本中筛选高产蛋白酶菌株,进行形态学和分子生物学鉴定,并对其生物学特性和菌株间的配伍效果进行研究。结果显示,所分离的菌株中Pe、Pc为枯草芽孢杆菌,Ps为地衣芽孢杆菌。培养16 h后进入生长平台期,Pc和Ps菌株生长的最适pH均为7.0,最适生长温度均为35℃;菌株Pe的最适pH为6.5,最适生长温度是30℃。菌株Pe与Ps 1:1配伍后产酶效果最好。

关键词: 蛋白酶; 菌株; 分离; 鉴定

Abstract: Morphological and molecular identification were done with the high protease-producing strains screened out from 245 marine organism and environmental samples,and their biological characteristics and compatibility effects between different strains were investigated. The results showed that, both the isolates Pe and Pc were identified as Bacillus subtilis, Ps was identified as Bacillus licheniformis. All the three isolates entered the growth platform phase after 16 h cultivation. The optimum pH and temperature for the growth of Pc and Ps strains were 7.0 and 35℃, respectively. And the optimum pH and temperature for the growth of Pe strain was 6.5 and 30℃, respectively. The best enzyme production occurred when the proportion of Pe and Ps was 1:1.

Key words: protease; strains; isolation; identification

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