Chemical constituents from the seed husks of Oryza sativa L. Issue 21 (1st November 2022)

• Record Type: Journal Article
• Authors: Ali, Mohammed; Ahmad, Ateeque; Sultana, Shahnaz; Mir, Showkat Rasool
• Is Part Of: Natural product research. Volume 36:Issue 21(2022)
• Page Start: 5530
• Page End: 5538
• Publication Date: 2022-11-01
• Subjects: Oryza sativa husk -- phytoconstituents -- isolation -- structural elucidation; Natural products -- Periodicals; Natural products -- Research -- Periodicals; Biological Factors -- Periodicals; Biological Products -- Periodicals; 547
• DOI: 10.1080/14786419.2021.2019733
• Languages: English
• ISSNs: 1478-6419

Abstract

Abstract: Oryza sativa L. (Family Poaceae) is cultivated in tropical regions as a staple food all over the world. The rice grain husk is considered as a tonic and administered orally to relieve dysentery. The air-dried seeds husks of O. sativa were exhaustively extracted with methanol in a Soxhlet apparatus. The concentrated methanol extract was adsorbed on silica gel and chromatographed on a silica gel column. The column was eluted with petroleum ether, chloroform and methanol successively to isolate four phytoconstituents characterised as 7-ketostigmasterol (1 ), 3β-benzyloxy-stigmast-7-one-22-en-19-oic acid 29-ethyleneglycol ether (2 ), sesquaurs-11-en- 2β, 3β, 5α-triol (3 ) and 2′-(1′′β-hydroxypropyl)-7, 4′-dimethoxyapigenin (4 ). These phytoconstituents were identified on the basis of spectral data analysis. Graphical Abstract: UF0001