Abstract: The crude polysaccharides were extracted from flos lonicerae and Ilex kudingcha by hot water. These crude extracts were tested against seven food spoilages using the agar disc diffusion method. The result showed that polysaccharide extracts from flos lonicerae and Ilex kudingcha have varying amount of activities against bacteria and fungi, and the antibacterial activities are stronger than antifungal activities. The minimum inhibition concentrations (MIC) of polysaccharide extracts of Ilex kudingcha against Staphylococcus aureus was 5mg/ml. The results provided scientific base for exploiting this peculiar resources.

Key words: flos lonicerae, Ilex kudingcha, polysaccharide, antimicrobial activities, food spoilage

摘要： 从金银花和苦丁茶中提取水溶性多糖,利用圆形纸片法对7种常见的食品腐败菌进行抗菌试验。结果表明:金银花和苦丁茶多糖提取物都具有一定程度的抗细菌与抗真菌活性,抗细菌活性比抗真菌活性强;苦丁茶多糖提取物对金黄色葡萄球菌的最低抑菌浓度为5mg/ml。

关键词: 金银花, 苦丁茶, 多糖, 抗菌活性, 食品腐败菌