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Chemical constituents and antimicrobial activity of the leaves of Caryota mitis Lour. (Arecaceae)

Research Authors
Islam A Abdelhakim*, Mohamed Ahmed El-Mokhtar, Afaf M Abd ElBaky and Dauod W Bishay
Research Department
Research Journal
Journal of Medicinal Plants Studies
Research Publisher
NULL
Research Rank
1
Research Vol
5(5): 2017
Research Website
https://www.researchgate.net/publication/320433575_Chemical_constituents_and_antimicrobial_activity_of_the_leaves_of_Caryota_mitis_Lour_Arecaceae
Research Year
2017
Research Member
Research Abstract

Phytochemical analysis and chromatographic fractionation of the total ethanolic extract of Caryota mitis
Lour. resulted in isolation and identification of ten compounds, two of them are firstly reported in the
family Arecaceae; kaempferol-3-O-rutinoside (8) and chlorogenic acid methyl ester (10), six compounds
are firstly reported in the plant; β-amyrin (1), β-sitosterol (2), β-sitosterol-3-O-β-D glucoside (3),
kaempferol (4), quercetin (5), kaempferol-3-O-β-D-glucopyranoside (6) and two compounds previously
isolated from the plant; quercetin-3-O-β-D-glucopyranoside (7), quercetin-3-O-rutinoside (9). The
structures were identified and confirmed through different spectroscopic methods including 1H-NMR,
13C-NMR, EI-MS and UV spectroscopy, in addition to comparison with authentic samples. Antimicrobial
assay of the different extracts and fractions revealed strong antibacterial activities on Staph. aureus more than E. coli; in addition to moderate antifungal activity of n-butanol and aqueous fractions against
Candida albicans.