Full-Text Search:
Home|Journal Papers|About CNKI|User Service|FAQ|Contact Us|中文
《Journal of Anhui Agricultural Sciences》 2008-11
Add to Favorite Get Latest Update

Study on Biological Activity of the Extracts from Portulaca oleracea L.

LI Shui-qing et al(College of Chemistry and Environmental Engineering,Yangtze University,Jingzhou,Hubei 434023)  
Five species of solvents,namely ethanol,acetone,ethyl acetate,benzene and petroleum ether were selected to obtain extracts from Portulaca oleracea L.dry powder by warm immersion method.The contact toxicity,antifeeding toxicity and stomach toxicity of each extract against Pieris rapae L.were tested.The results showed that these extracts all had certain contact toxicity.Among them,ethanol extract had the strongest contact toxicity,and the adjusted death rates were 55.13% and 64.86% at 24 h and 48 h after treatment,respectively.Whereas the antifeeding activity and the stomach toxicity of each extract against P.rapae were weak.
【Fund】: 湖北省教育厅科研项目(Q200712003)
【CateGory Index】: S482.3
Download(CAJ format) Download(PDF format)
CAJViewer7.0 supports all the CNKI file formats; AdobeReader only supports the PDF format.
©2006 Tsinghua Tongfang Knowledge Network Technology Co., Ltd.(Beijing)(TTKN) All rights reserved