Profiling of Volatile Constituents and Biological Activity Studies of Ruprechita polystachya Griseb Cultivated in Egypt | ||||
| Egyptian Journal of Chemistry | ||||
| Article 69, Volume 64, Issue 8, August 2021, Page 4719-4726 PDF (449.68 K) | ||||
| Document Type: Original Article | ||||
| DOI: 10.21608/ejchem.2021.83519.4097 | ||||
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| Authors | ||||
Layth Salih1; Fathy Eid1; Mohamed Elhaw2; Abdelaaty Hamed  1
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| 1Chemistry Department, Faculty of Science, Al-Azhar University, Nasr City-Cairo 11884, Egypt | ||||
| 2Botany and Microbiology Department, Faculty of Science, Al-Azhar University, Nasr City-Cairo 11884, Egypt | ||||
| Abstract | ||||
| This study aimed to assess the volatile components and bioactivity potential of Ruprechita polystachya Griseb cultivated in Egypt. Air dried leaves was extracted was dichloromethane:methanol 1:1. Gas chromatography mass spectrometry (GC-MS) was applied to study the chemical constituents of n-hexane fraction while standard in vitro bioassays were used to detect the cytotoxic, antioxidant and antimicrobial potential of R. Polystachy. GC-MS analysis of n-hexane fraction showed the tentative presence of twenty-eight secondary metabolites classified as follow: ten fatty acid esters, eight hydrocarbones, two diterpenes, one triterpene, one phenyl propanoid, one phenolic derivative, one alkyl phenyl ketone, one α–tocopheroid, one γ-lactone derivative, one ketonic compound and one steroidal compound. The major identified compounds were: Ethenone-1-(2,3-dihydroxy-4-methoxy-6-methyl phenyl) (xanthoxylin) (49.41%), eugenol (4.89%), 9-octadecenoic acid (z)-methyl ester (3.18), hexadecenoic acid methyl ester (2.64%) and 9,12- octadecadienoic acid(z,z)-methyl ester (2.44%). R. polystachya extract showed cytotoxic activity against HeLa, MCF-7, HepG-2, PC3 and HCT-116 cancer cell lines with IC50 10.20, 12.79, 16.10, 26.38 and 28.23 µg/ml resprctively. In antioxidant assay using ascorbic acid as areference drug, R. polystachya extract exhibited a high potentiality with IC50 34.59 µg/ml while the corresponding fractions showed less potentiality. The antimicrobial activity of the extract/fractions was assessed using agar diffusion assay and crude extract showed a good inhibition against C. Albicans with activity index 74.1 % while it showed less activity against bacterial strains, E. Coli and B. Subtilis, with activity indicies 34.6 and 60.9 % respectively. R. polystachya can be considered as a potential source of bioactive compounds and more comprehensive exploration of its bioactive secondary metabolites is recommended. | ||||
| Keywords | ||||
| Ruprechita polystachya; volatile constituents; cytotoxicity; antioxidant; antimicrobial; in vitro activity | ||||
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