ISOLASI DAN ELUSIDASI STRUKTUR TRITERPENOID KULIT BATANG SURIAN Toona sinensis DAN UJI TERHADAP HAMA Crosidolomia pavonana

ISOLASI DAN ELUSIDASI STRUKTUR TRITERPENOID KULIT BATANG SURIAN Toona sinensis DAN UJI TERHADAP HAMA Crosidolomia pavonana

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ABSTRACT Tryterpenoid compound (3-hydroxyeupha-7-ene) were isolated from hexane fraction the steam bark of Toona sinensis (Meliaceae).The structures of these compounds were established base on spectroscopic evidence, including UV, IR, 3C-NMR, 1H-NMR, HMBC, HMQC and COSY Birthstone Necklace spectra and literature survey this is new compound in family Meliaceae.Insect activity of the hexane fraction (1.0%) and against Crosidolomia pavonana were tested.

The activity of hexane were mortality (37.5%), antifeeding (75.5%).The activity of the 3-hydroxyeupha-7-ene showed mortality (52.

0%), SPEARMINT GUM Lc50; 0.39847 and Lt50; 5.53931.Keywords: Toona sinensis (Meliaceae), 3-hydroxyeupha-7-ene, Crosidolomia pavonana, Antifeeding, Mortality Lc50 and Lt50.