Isolation, Characterization and Antimicrobial Activity of Quercetin-3-O-(2”-α-Methyl-p-Coumaryl)-Rutinoside from Delonix elata Flowers
A. Rajeshkanna, M. M. Senthamilselvi, D. Prabhakaran
European Journal of Medicinal Plants · pp. 1–11 · Published 28 Feb 2020
10.9734/ejmp/2020/v31i430224Abstract
Aims: To investigate the isolated flavonoid compound, characterization and antimicrobial activity of Quercetin-3-O-(2”-α-methyl-p-Coumaryl)-rutinoside from Delonix elata flowers. Place and Duration of Study: The research work was carried out at Research laboratory, Department of chemistry, Periyar E.V.R College, Trichy-23, between May 2016 to January 2018. Methodology: Extraction and fractionation was carried out from the solvents of ethanol, benzene, petroleum ether, diethyl ether and ethyl acetate. The structure of the isolated compound (Quercetin-3-O-(2”-α-methyl-p-Coumaryl)-rutinoside) was elucidated through their physical and chemical methods. The isolated compound was characterized by using various spectral data such as UV, 1H NMR, 13C NMR, MS. Four bacterial strains Salmonella typhi, Escherichia coli, Enterococcus faecalis, Bacillus cereus and two fungal strains Curvularia lunata and Candida albicans were tested by using disc diffusion method. Conclusion: The present study was concluded that the dry sample of ethyl acetate fraction of Delonix elata flowers was Quercetin-3-O-(2”-α-methyl-p-Coumaryl)-rutinoside and it possesses effective antimicrobial activity against bacteria and fungi.
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