一株脂肪酶产生菌的生理生化及酶学性质  

Physio-biochemistry and Enzymology Characteristics of A Lipase-producing Bacterium

作　　者：王秀花 韩亚杰[2] 代斌[2] 

机构地区：[1]新疆维吾尔自治区奎屯市第一高级中学,新疆奎屯833220 [2]新疆兵团化工绿色过程重点实验室,新疆石河子832003

出　　处：《湖北农业科学》2009年第7期1609-1612,共4页Hubei Agricultural Sciences

基　　金：教育部新世纪优秀人才支持计划项目(NCET-04-0988);石河子大学高层次人才引进计划项目(RCZX200630)

摘　　要：从新疆伊犁土壤中筛选得到一株脂肪酶产生菌株Y-605,通过对该菌株相关生理生化特征的测定及其酶学性质的研究,鉴定其为节杆菌属。研究了不同pH值、温度对其酶学性质的影响。结果表明,其最适生长温度45℃,最适pH值8.0,在pH值7.0～9.0、温度40～50℃之间有较好的稳定性。A lipase producing strain, Y-605 ,was isolated from the soil in Ill Prefecture, Xinjiang. Its physiological and biochemical characteristics were studied and the properties of lipase were analyzed at the same time. Based on physiological and biochemical indices identification, Y-605 was belonged to Arthrobacter sp. The optimum temperature for lipase activity was 45℃ and the optimum pH value was 8.0, when the temperature between 40℃ and 50℃,and pH between 7.0 and 9.0,the lipase activities were still very high.

关 键 词：脂肪酶产生菌 生理生化 酶学性质 

分 类 号：Q935[生物学—微生物学]