夏枯草及其三萜皂甙抑菌作用的热动力学研究  

Thermodynamic Study on the Bacteriostatic Action of Prunella Vulgaris and Its Triterpenoid Saponins

作　　者：潘晓茹[1] PAN Xiao-ru(Weifang University,Weifang 261061,China)

机构地区：[1]潍坊学院,山东潍坊261061

出　　处：《潍坊学院学报》2018年第2期24-26,共3页Journal of Weifang University

摘　　要：利用热活性检测仪测定了大肠埃希菌在不同浓度的夏枯草及其皂甙提取液中生长的热功率-时间曲线,利用Logistic微生物生长的模型进行数学处理,计算出生长速率常数,进而确定了大肠埃希菌在夏枯草及其皂甙提取液中的最佳生长浓度和临界生长浓度,结果表明夏枯草皂甙的抑菌效果更好。Using micro calorimeter, the power-time curves of different concentrations of Prunella vulgaris and its triterpenoid saponins for E. coli were determined. According to logistic equation, the bacterial growth rate constants were calculated. The optimum allowable concentration and the critical growth concentration have been obtained. The results showed that the bacteriostatic effect of triterpenoid saponins was better.

关 键 词：大肠埃希菌 夏枯草 三萜皂甙 最佳生长浓度 临界生长浓度 

分 类 号：Q945[生物学—植物学]