Antifeedant activity of ethanolic extract from Flourensia oolepis and isolation of pinocembrin as its active principle compound.

Abstract

The ethanolic extract from Flourensia oolepis aerial parts showed strong antifeedant activity against the pest larvae, Epilachna paenulata, with an antifeedant index (AI%) of 99.1% at 100 microg/cm(2). Based on chromatographic fractionation of the extract, guided by bioassays on E. paenulata, the flavanone pinocembrin (1) was isolated as the most active… (More)
DOI: 10.1016/j.biortech.2009.02.050

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