生物技术通报 ›› 2013, Vol. 0 ›› Issue (1): 203-208.

• 研究报告 • 上一篇    

脂肪酶活力测定方法及其在筛选产脂肪酶微生物中的应用

王欢1,2, 何腊平3,4,周换景1,2, 张义明1 ,李翠芹2 ,陶菡1,2   

  1. 1. 贵州省发酵工程与生物制药重点实验室,贵阳 550025 ;2. 贵州大学化学与化工学院,贵阳 550025 ;3. 贵州大学生命科学学院,贵阳 550025 ;4. 贵州省农畜产品贮藏与加工重点实验室,贵阳 550025
  • 收稿日期:2012-10-29 修回日期:2013-01-31 出版日期:2013-01-30 发布日期:2013-01-30
  • 作者简介:王欢,女,硕士研究生,研究方向:发酵工程;E-mail: huan9955@163.com
  • 基金资助:
    国家自然科学基金项目(21062004) ,贵州省优秀科技教育人才省长专项基金项目[黔省专合字(2010)10 号] ,国家自然科学基金项目(31160002,C010101)

Determination Methods for Lipase Activity and Its Application in the Screening of Microbial Lipase

Wang Huan1,2,He Laping3,4,Zhou Huanjing1,2,Zhang Yiming1, Li Cuiqin2, Tao Han1,2   

  1. 1. Guizhou Province Key Laboratory of Fermentation Engineering and Biopharmacy,Guiyang 550025;
    2. School of Chemistry and Chemical Engineering,Guizhou University,Guiyang 550025;
    3.College of Life Sciences,Guizhou University,Guiyang 550025 ;4. Key Laboratory of Agricultural and Animal Products Store & Processing of Guizhou Province,Guiyang 550025
  • Received:2012-10-29 Revised:2013-01-31 Published:2013-01-30 Online:2013-01-30

摘要: 比较了罗丹明平板法、橄榄油乳化法、对硝基苯酚法测脂肪酶水解酶活和对硝基苯酚法测脂肪酶酯合成酶活4 种常用的脂肪酶活力测定方法。结果表明,罗丹明平板法只适合脂肪酶活力的定性和初步定量判断,后3 种方法适合于脂肪酶活力的定量检测,但只有对硝基苯酚法有较好的重现性。而且,脂肪酶水解酶活力和其合成活力无对应关系,所以在筛选产脂肪酶微生物时要选择合适的脂肪酶活力测定方法。也即,筛选产水解酶活的菌株应选择水解酶活测定方法,否则,选择酯合成酶活力测定方法。基于这一原则筛选到了预期产脂肪酶微生物。

关键词: 脂肪酶 , 水解酶活力 , 酯合成酶活力 , 测定方法 , 筛选

Abstract: Four common lipase activity determination methods including Rhodamine B plate, olive oil emulsification, ρ-NPP for lipasehydrolytic activity and ρ-NPP for lipase synthetic activity were compared. The result showed that the Rhodamine B plate method was suitable forthe qualitative and preliminary quantitative estimate of lipase activity and the other three methods were suitable for the quantitative determinationof lipase activity but only the ρ-NPP method has a good reproducibility. Moreover, there is no relationship between the hydrolytic activity andsynthetic activity of lipase. So lipase activity determination method should be chosen in screening the lipase-produced microbial. Namely,hydrolytic activity determination methods should be chosen in screening the hydrolytic lipase-produced microbial, otherwise, ester synthetaseactivity assay should be used. Based on the principle, desired lipase-produced microbial were screened.

Key words: Lipase , Hydrolytic activity , Synthetic activity , Determination methods , Screening