Composition of Water Extract from Wild Bitter Gourd (Momordica charantia L.) Fruit for application as Antifeedant and Mortality Test on Armyworm Larvae (Spodoptera litura Fab.)

摘要

This study was to determine the fruit maturity level of wild bitter gourd and the composition of water extract which is effective as antifeedant and appropriate for mortality test on armyworm larvae. Results obtained show that w ater extract of wild bitter gourd fruit contain s phenolic compounds, flavonoids and triterpenoids . Terpenoid compounds contained in water extract of fruits at maturity level 4H, 8H and 12H we re momordicoside L, momordicoside K, compound 3β, β7, 25-trihydroxycucurbita-5.23(E)-diena-19-al:R1=H, R2= H and momordicine 1. Fruit maturity level 4H 50% and 4H 60% resulted to the highest a ntif ee dan t index , ie 40.08% and 44.20%. LC 50 at fruit maturity level 4H observ ed on day 7 was 40% .