60种食药两用中药抗菌防腐作用研究

本实验利用无菌24-孔板采用连续稀释法对60味食药两用中药进行了抗19种常见食品腐败菌的快速筛选,得到有明显抗菌作用的中药5种:丁香、花椒、高良姜、甘草、乌梅。其中:丁香、花椒、高良姜为香料,有较强的抗真菌作用;乌梅对所测细菌有较强抑制作用,将丁香、花椒、高良姜等等量组成复方进行抗菌实验,得出该复方的醇提物抗菌作用强于水提物,在浓度为1/80时对所有被测菌均有抑制作用。

STUDIES ON ANTIMICROBIAL EFFECTS OF 60 TRADITIONAL CHINESES HEALTH FOODS

In order to find out antimicrobial traditional Chinese health food,24 well culture plate was used to determine antimicrobial effects on 19 strains of food-spoilage microorganisms. Of the 60 extracts of traditional Chinese health foods, 5 showed remarkable antimicrobial activity against the tested strains,3 of which (F. caryophylli ,P. zanthoxyli,R. alpiniae)exhibited a strong antifungal activity, and 1 of which (F. mume) exhibited an strong activity against the tested bacteria. The results also showed that the complex,composed of F. caryophylli,P. zanthoxyli,R. alpiniae and so on at the same ratios,had a more effective antimicrobial activity in alcohol extract than in water extract. The alcohol extract inhibited all microorganisms tested in this study at the concentration of 1/80.