Fourteen vegetable oils were examined and 3‐oxo triterpenes are present in the unsaponifiable matter of shea (Butyrospermum parkii), illipe (Shorea stenoptera), mango kernel (Mangifera indica), kokum (Garcinia indica) and phulwara (Madhuca butyracea) fats but not in cocoa butter, dhupa fat (Vateria indica), soybean, peanut, mustard, corn, palm, coconut or mowrah (Madhuca latifolia) fats.Lipids.
The unsaponifiable matter from sal (Shorea robusta) seed fat contains, in addition to the usual sterols and triterpenes, 12% of another fraction mainly consisting of 3‐keto triterpenes. The major constituents of the keto triterpene fraction have been identified as β‐amyrenone, cycloartenone and lupenone. The structural assignments were based on physical and spectral characteristics (infrared,1H‐ and13C‐nuclear magnetic resonance, and gas chromatography‐mass spectroscopy) of the alcohol acetates obtained by reduction, acetylation and fractionation of individual components by argentation thin layer chromatography. This appears to be the first recorded instance of the occurrence of 3‐keto triterpenes in vegetable fats.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.