Isolation and Structure Elucidation of Steroid from Methanol Extract of Sentang (Azadirachta excelsa(Jack.) Jacobs) Stem

SANJAYA, Angga and ADFA, Morina and PARDEDE, Antoni and GUSTIAN, Irfan (2018) Isolation and Structure Elucidation of Steroid from Methanol Extract of Sentang (Azadirachta excelsa(Jack.) Jacobs) Stem. Proceeding of The 1 st International Conference on Chemistry, Pharmacy and Medical Sciences (ICCPM).

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Abstract

A single compound (white powder) has been isolated from methanol extract of Sentang (Azadirachta excelsa) stem by means of column chromatography using chloroform and methanol as eluents with step gradient polarity. 1H-NMR spectrum showed that proton connected with carbon that has hydroxyl and alkene bond. Furthermore, 13C-NMR, DEPT 45 and 135 spectrums showed that the 29 carbon atoms comprises of 6 CH3, 11 CH2, 9 CH and 3 quaternary carbon. Also, MS spectra proved that an isolated compound has a relative molecular mass m/z 414. Based on data 1H-NMR, 13C-NMR, DEPT 45 and 135, MS and compared with the literature, the isolated compound suggested as β-sitosterol.

Item Type: Article
Subjects: Q Science > Q Science (General)
Depositing User: Publikasi dan Pengelolaan Jurnal
Date Deposited: 01 Feb 2024 04:28
Last Modified: 01 Feb 2024 04:28
URI: http://eprints.uniska-bjm.ac.id/id/eprint/19835

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