蜂胶提取物的抑菌效果研究

用不同方法提取蜂胶有效成分,进行体外抑菌试验。结果表明:各种提取方法对食品中的常见菌都有不同程度的抑制作用,其中对革兰氏阳性菌抑菌作用较好;各种方法提取物对不同细菌的抑菌效果也不一样,其中以超声波提取效果最好,其最小抑菌浓度为:大肠杆菌:0.8%、沙门氏菌0.8%、金黄色葡萄球菌0.1%、蜡状芽孢杆菌0.1%、枯草杆菌0.2%、鸡蛋表面混合菌0.2%。

STUDY ON THE ANTIMICROBIAL ACTIVITIES OF PROPOLIS EXTRACTION

The antimicrobial activities of the extracts from the propolis by different methods has been studied in this paper. The results show that :all the propolis extraction have the anti-microbial activities for common bacteria in food, especially for gram positive bacteria. It was also showed that the effect of ultrasound extraction is best, the MIC of the extract were:0.1 % against staphylococcus aureate and Bacillus cereus,0.2 % against Bacillus subtilis and mixed microbes from egg surface,0.8 % against Escherichia coli and salmonella.