摘要
为了研究西伯利亚花楸枝条乙醇提取物的体外抑菌特性,测定了提取物对一系列供试细菌和真菌的最低抑菌浓度、最低杀菌浓度,以金黄色葡萄球菌及大肠杆菌为例研究了提取物的热稳定性、紫外光稳定性,以金黄色葡萄球菌为例研究了提取物抑菌时间及抑菌率的关系,同时还进行了实物防腐实验。结果表明提取物对所有供试细菌及真菌都有明显的抑制作用,其最低抑菌浓度(MIC)较低;121℃湿热处理30min后,抑菌效应下降不大,具有良好的热稳定性及紫外光稳定性,其抑菌作用随抑菌时间的延长而增强,实物防腐实验效果良好。
The antimicrobial effect of ethanol extract from Sorbus sibirica Branch for a series of bacterittm and fungi were studied. The extract was also studied for its stability to temperature and ultraviolet radiation. The results indicated that the extract with a certain concentration could effectively inhibit the growth of bacteria and fungi. The MIC was lower and not reduced much when heated at under 121℃ for 30 rain, it still shows a strong antiseptic power after a treatment of ultraviolet radiation. The extract has obvious antimicrobial effect on animal tests.
出处
《食品科学》
EI
CAS
CSCD
北大核心
2006年第11期185-188,共4页
Food Science
基金
国家自然科学基金资助项目(30550001)
关键词
西伯利亚花楸枝条乙醇提取物
最低抑菌浓度
最低杀菌浓度
稳定性
exrtract of Sorbus sibirica braneh（ESSB）
minimal inhibitory concentration
minimal bactericidal concentration
stability
