钝节拟丽藻抑菌活力及热稳性研究  

Bacteriostatic Effect and Heat Stability of Nitellopsis obtusa （Charophyta）

作　　者：蔡瑾[1] 谢树莲[1] 

机构地区：[1]山西大学生命科学与技术学院,山西太原030006

出　　处：《山西大学学报（自然科学版）》2009年第A01期109-112,共4页Journal of Shanxi University(Natural Science Edition)

基　　金：基金项目：山西省农业科技攻关项目（2007031042）;山西省高校科技研究开发项目（2007147）;太原市科技项目（大学生创新创业计划）（07010734）

摘　　要：对钝节拟丽藻的抑菌活力及热稳定性进行了研究，测定了钝节拟丽藻醇提物对金黄色葡萄球菌和枯草杆菌的最低抑菌、杀菌浓度以及高温加热对其抑菌效果的影响．结果表明，钝节拟丽藻对两种受试菌均有较低的最低抑菌和杀菌浓度．金黄色葡萄球菌的最低抑菌和杀菌浓度分别为1．6％和3．25％，枯草杆菌为3．25％和3．25％．钝节拟丽藻醇提液的抑菌成分对高温不具有稳定性．This paper studied on the antimicrobial characteristics of ethanol extraction of Nitellopsis obtusea. The MIC and MBC of Nitellopsis obtusea to Staphylococcus aureus and Bacillus subtilis were determined. The thermo stability of extraction was tested. The results showed that the MIC and MBC of Nitellopsis obtusea to two species bacteria were low. The MIC and MBC to Staphylococcus aureus were respectively 1.6% and 3.25%. The MIC and MBC to Bacillus subtilis were respectively 3.25% and 3.25%. Extraction of Nitellopsis obtrsea was unstable under higher temperature.

关 键 词：钝节拟丽藻 最低抑菌浓度 热稳定性 

分 类 号：Q946.8[生物学—植物学]