Analysis of the husk and kernel of the seeds of Moringa stenopetala

Bulletin of the Chemical Society of Ethiopia

关键词: Moringa;    M. stenopetala;    4-(α-L-rhamnopyranosyloxy)benzylglucosinolate;    4-(α-L-rhamnosyloxy)benzyl alcohol;    Allantoin;   

DOI  :  http://dx.doi.org/10.4314/bcse.v31i1.9

来源: DOAJ

【 摘 要 】

The ethanol extract of the kernel of the endemic plant Moringa stenopetala after silica gel column chromatography led to the isolation of 4-(α-L-rhamnopyranosyloxy)benzyl glucosinolate (1) and sucrose. The oil obtained by Soxhlet extraction with petrol was trans-esterified with BF3-MeOH and analyzed by GC-MS. The results showed the presence of diverse fatty acids namely palmitic (11%), palmitoleic (1.2%), stearic (11%), oleic (63%), linoleic (1.2%), arachidic (6%) and the rare behenic acids (6%). The white glossy seed husk which comprises 25% of the whole seed yielded two compounds namely 4-(σ-L-rhamnosyloxy)benzyl alcohol (2) and allantoin (3). To the best of our knowledge this is the first report of compound 2 as a natural product. Allantoin is reported here for the first time from the genus Moringa.

【 授权许可】

Unknown