五倍子抗蕃茄晚疫病原菌有效成分提取工艺研究

Extraction of anti-tomato late blight from Galla chinensis and study on the extracting technology

摘要: 对不同提取条件下五倍子提取液抗蕃茄晚疫病原菌作用进行比较,优选出最佳提取工艺,并测定了其最小抑菌浓度、最小杀菌浓度。结果最佳提取工艺为:水为溶剂,在80℃浸提3h,料液比1:25,提取2次。五倍子提取液对蕃茄晚疫病原菌最小抑菌浓度为15.7mg/mL,最小杀菌浓度为31.3mg/mL。在此条件下五倍子对番茄晚疫病菌的抑菌直径为33.2mm。

Abstract: This paper studied the antifungal activity components extracted from Galla chinensis agnist tomato late blight, with the minimum inhibitory concentration (MIC) and minimal fungicidal concentration (MFC) were measured . The optimal exraction parame-ters for Galla chinensis were obtained as followed : extraction temperature 80℃, extraction time 3h, extraction times 2 and the ratio of herb to water was 1∶25. The minimum inhibitory concentration (MIC) was 15.7mg/mL, MFC was 31.3mg/mL. The inhibition zone for tomato late blight reached 33.2mm under circvmstances mentioned above.