Antioxidant and antimicrobial activity evaluation and essential oil analysis of Semenovia tragioides Boiss. from Iran |
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Authors: | Abdolhamid Bamoniri Abdolrasoul H Ebrahimabadi Asma Mazoochi Mohsen Behpour Fereshteh Jookar Kashi Hossein Batooli |
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Affiliation: | 1. Essential Oils Research Institute, University of Kashan, Post Code: 87317-51167, Kashan, Islamic Republic of Iran;2. Isfahan Research Center of Natural Sources, Kashan Station, Kashan, Islamic Republic of Iran |
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Abstract: | This study reports the essential oil composition, antioxidant and antimicrobial activity of the essential oil and methanol extract of aerial parts of Semenovia tragioides. GC and GC/MS analysis identified 17 compounds representing 99.4% of the oil. The main components comprising 61.9% of the oil were lavandulyl acetate (25.5%), geranyl acetate (12.5%), trans-β-ocimene (8.8%), p-cymene (7.7%) and γ-terpinene (7.4%). The samples were screened for their antioxidant activities using 2,2-diphenyl-1-picrylhydrazyl (DPPH) radical and β-carotene/linoleic acid assay methods. None of the plant samples showed appreciable antioxidant activity in DPPH test. However, methanol extract exhibited considerable linoleic acid oxidation inhibition (77.4%) in the β-carotene/linoleic acid test, a value near to that of butylated hydroxytoluene (BHT, 95.6%). Total phenolic content of the plant extract as gallic acid equivalents was 7.5 μg/mg. The essential oil exhibited strong antimicrobial activity against all but one of the tested microorganisms while the plant extract only inhibited two of them weakly. |
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Keywords: | Semenovia tragioides Essential oil GC/MS analysis Antioxidant activity Total phenolic Antimicrobial activity |
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