Comparative Studies of Chemical Compostion, Antimicrobial and Antioxidant Activity of Essential Oil of Some Species from Genus <i>Artemisia</i>
Journal Title: Journal of Natural Remedies - Year 2018, Vol 18, Issue 1
Abstract
Background and Objective: Some species from genus <em>Artemisia</em> were used in ancient medicine since Pharaonic civilization, most species of this genus are grown in arid or desert zones in Egypt. The present study aimed to evaluate and compare the chemical constituents, antimicrobial and antioxidant potential of the essential oils of three species of <em>Artemisia</em> (<em>Artemisia sieberi</em>, <em>Artemisia judaica</em> and <em>Artemisia monosperma</em>) grown in Egypt. Materials and Methods: Chemical constituent of the essential oils of these species were analysed by GC-MS, antibacterial activities were carried out using disc-diffusion test and antioxidant properties were investigated with Iron, Fe (III) to Fe (II) reduction and DPPH radical scavenging capacity. Results: The results of chemical analysis revealed similarity between the three species in 20 compounds, the major compounds identified in essential oils were verbenol, (7.5 % and 11.51%) in <em>A. sieberi</em> and <em>A. monosperma</em>, β-caryophyllene oxide (1.25 % – 0.78%) and Methyl jasmonate (0.9 % and 1.21 %) in <em>A. sieberi</em> and <em>A. judaica</em>, respectively. While the major compound in <em>A. judaica</em> was Lilac alcohol C (9.6%) and camphor (4.5%). The antibacterial investigation exhibited significant and broad-spectrum antibacterial efficacy of <em>A. monosperma</em> and <em>A. judaica</em> against different strains of Gram-positive and Gram-negative bacteria. Whereas, <em>A. sieberi</em> showed higher antibacterial efficacy against the gram-positive bacteria but weak or no effect against the Gram-negative bacteria. The results of the antioxidant investigation showed that <em>A. sieberi</em> present the higher reduction capacity with an IC<sub>50</sub> of 0.17 ± 0.03g/L, followed by <em>A. judaica</em> with an IC<sub>50</sub> of 0.58 ± 0.04g/L and <em>A. monosperma</em> with an IC<sub>50</sub> of 6.35 ± 0.41g/L. However, the reducing capacity of ascorbic acid and quercetin were 0.091 ± 0.002g/L and 0.026 ± 0.002g/L respectively. Conclusion: The present study revealed that the essential oils of <em>A. sieberi</em>, <em>A. judaica</em> and <em>A. monosperm</em>a possesses significant antioxidant and antibacterial activity, which attributed to the plenty of varied chemical compounds in these medicinal plants.
Authors and Affiliations
Eman Ramadan Elsharkawy, Abdelaziz Ed-dra, Suliman Alghanem, Emad M. Abdallah
Keywords
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- EP ID EP335431
- DOI 10.18311/jnr/2018/20052
- Views 118
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