摘要
采用正己烷做溶剂,提取夹竹桃、樟树叶的有效成分,研究了提取物的灭螺效果和对钉螺上爬的抑制作用.结果表明:2种植物提取物均具有较好的灭螺效果,夹竹桃叶的提取物在60 mg/L的浓度下,药后5d,钉螺的死亡率为100%,钉螺死亡率(y)和浓度的对数值(x)的量效关系为y=100.5x-109.79,死亡率(y)和时间(t)的时效关系为y=20t-7.32;樟树叶的提取物在400 mg/L的浓度下,药后5 d,钉螺的死亡率也达100%.其量效关系为y=47.8x-52.62,时效关系为y=24.01t-21.37.夹竹桃叶提取物的灭螺活性明显强于樟树叶的提取物,但对钉螺上爬的抑制作用不如樟树叶.
The effective components of Nerium indicum and Cinnamomum camphora＇ s leaves were extracted by hexane, and the killing and controlling effect about the extractions was studied. It showed that both of the plant extractions had mulluscicidal activity to some degree. Under the 60 mg/L of the Nerium indicum＇ s extraction, the mortality rate of the snails Oncomelania hupensis was 100 %, the dose - effect of the mortality rate（y） and the logarithm figure of the concentration（ x ） was y = 100.5x - 109.79;while the time - effect of the mortality rate（ y ） and the estimated days （ t ） was y = 20t - 7.32 . The killing effect of the Cinnamomum camphora＇s extraction reached 100 % when the concentration was 400 mg/L, the dose - effect and time - effect of the Cinnamomum camphora were y = 47.8x - 52.62 and y = 24.01 t - 21.37 , respectively. The extraction of the Nerium indicum＇s leaves expressed better effect than Cinnamomum camphora, while its effect to prevcnt the snails from climbing up was not as good as Cinnamomum camphora.
出处
《湖北大学学报（自然科学版）》
CAS
北大核心
2006年第1期81-83,共3页
Journal of Hubei University：Natural Science
基金
湖北大学中药生物技术省级重点实验室开放基金资助
关键词
正己烷提取物
夹竹桃
樟树
钉螺
effective components of the extractions
hexane
Nerium indicum
Cinnamomum camphora
Oncomelania hupensis
