Phytochemical and antioxidant studies of Malaysian medicinal plants syzygium polyanthum and octomeles sumatrana / Salwa Mohammed Raweh Abdullah Al-Faqeer

Mohammed Raweh Abdullah Al-Faqeer, Salwa (2017) Phytochemical and antioxidant studies of Malaysian medicinal plants syzygium polyanthum and octomeles sumatrana / Salwa Mohammed Raweh Abdullah Al-Faqeer. In: The Doctoral Research Abstracts. IGS Biannual Publication, 12 (12). Institute of Graduate Studies, UiTM, Shah Alam.

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Abstract

The leaves of S. polyanthum (Myrtaceae) and barks of O. sumatrana (Datiscaceae) were investigated for their chemical constituents, antioxidant and cytoprotective activities. Their aqueous extracts were first subjected to acidic hydrolysis and the organic layers were dissolved in water and partitioned using hexane, ethyl acetate (EtOAc) and n-butanol (BuOH). Six compounds (betulinic acid, ellagic acid, kaempferol, myricetin, quercetin, and β-sitosterol) were isolated and identified from the EtOAc and BuOH extracts of S. polyanthum and four compounds (quercetin, kaempferol, rutin, bryonolic acid) were purified from the n-butanol extract of O. sumatrana by means of MPLC and HPLC. The structures of the above compounds were determined by comparing their NMR and LCMS-TOF data with reported values. The structure of bryonolic acid was further confirmed by X-ray crystallography.

Item Type: Book Section
Creators:
CreatorsEmail
Mohammed Raweh Abdullah Al-Faqeer, SalwaUNSPECIFIED
Subjects: L Education > LB Theory and practice of education > Higher Education > Dissertations, Academic. Preparation of theses > Malaysia
Divisions: Institut Pengajian Siswazah (IPSis) : Institute of Graduate Studies (IGS)
Series Name: IGS Biannual Publication
Volume: 12
Number: 12
Item ID: 19935
Uncontrolled Keywords: Abstract; Abstract of thesis; Newsletter; Research information; Doctoral graduates; IPSis; IGS; UiTM
Last Modified: 11 Jun 2018 03:08
Depositing User: Staf Pendigitalan 2
URI: http://ir.uitm.edu.my/id/eprint/19935

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