Identification of two triterpenoids in solid wastes from olive cake

Solid wastes resulting from olive oil production were macerated in ethanol and then extracted with hexane. Id this fraction, in addition to typical olive oil triglycerides, two oleanane derivatives were identified. These chemicals belong to the olean-12-ene family, and their H-1-NMR and C-13-NMR signals were confidently assigned with the aid of high-resolution two-dimensional nuclear magnetic resonance spectroscopy. These compounds were identified as methyl 3 beta-acetoxyolean-12-en-28-oate and methyl 2 alpha,3 beta-diacetoxyolean-12-en-28-oate.