摘要
按WHO"杀螺剂实验室终筛方法",以不同浓度的石胡荽水提取物和乙醇提取物进行钉螺浸杀实验,用傅立叶变换红外光谱仪和紫外-可见光分光光谱仪初步鉴定各提取物的分子结构。结果表明,大于2.0g/L的石胡荽水提物和醇提物溶液处理钉螺5d,钉螺死亡率可达100%。浸杀钉螺4d后,石胡荽水提物和醇提物的LC50分别为0.50g/L和0.62g/L,表明水提物比醇提物的灭螺活性强。石胡荽水提物、醇提物的主要成分为倍半萜内酯类和甾醇类。
The active components from Centipeda minima were extracted by water or ethanol, and identified by FTIR spectroscopy and UV-visible spectrophotometer. The molluscicidal effect of aqueous extract and ethanol extract from Centipeda minima against Oncomelania hupensis was determined as referring to the WHO guidelines for laboratory molluscicidal test. Treated with over 2.0 g/L aqueous extract and ethanol extract for five days, the mortality of O. hupensis was up to 100%, and their LC50 for snails was 0.50 g/L and 0.62 g/L, respectively. The molluscicidal activity of aqueous extract was higher than that of ethanol extract. The main components of aqueous extract and ethanol extract were sesquiterpens lactones and sterols.
出处
《中国寄生虫学与寄生虫病杂志》
CAS
CSCD
北大核心
2009年第4期377-378,F0003,共3页
Chinese Journal of Parasitology and Parasitic Diseases
基金
国家自然科学基金资助项目(No.30671818)
湖北省自然科学基金资助项目(No.2008CDB060)~~
关键词
石胡荽
湖北钉螺
有效成分
Centipeda minima Oncomelania hupensis
Active component
