Effect of gamma irradiation on the antimicrobial and free radical scavenging activities of Glycyrrhiza glabra root |
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| Authors: | Khanzadi Fatima Khattak Thomas James Simpson |
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| Institution: | 1. Food Science Division, Nuclear Institute for Food and Agriculture (NIFA), Peshawar, Pakistan;2. School of Chemistry, University of Bristol, BS8 1TS, Bristol, UK;1. Department of Chemistry, Abdul Wali Khan University, Mardan, Pakistan;2. Institute of Chemical Sciences, University of Peshwar-25120, Pakistan;3. Department of Chemistry, COMSATS Institute of Information Technology, Abbottabad 22060, Pakistan;4. Department of Chemical Engineering, COMSATS Institute of Information Technology, Lahore, Pakistan;5. Institut für Chemie, Physikalische und Theoretische Chemie, Universität Rostock, Dr.-Lorenz-Weg 1, 18059 Rostock, Germany;6. Leibniz-Institut für Katalyse an der Universität Rostock e. V. Alebert-Einstein-Strasse 29a, 18059 Rostock, Germany;7. International Center for Chemical and Biological Sciences, H.E.J. Research Institute of Chemistry, University of Karachi, Karachi 75270, Pakistan;8. Department of Chemistry, College of Science, King Faisal University, Al Ahsa 31982, Saudi Arabia;1. Department of Horticultural Science, School of Agriculture, Shiraz University, Shiraz, Iran;2. Department of Agriculture, Medicinal Plants and Drugs Research Institute, Shahid Beheshti University, G.C., Evin, Tehran, Iran;3. Department of Phytochemistry, Medicinal Plants and Drugs Research Institute, Shahid Beheshti University, G.C., Evin, Tehran, Iran;1. SINTEF Ocean, Dept. Environmental Technology, N-7465 Trondheim, Norway;2. The Norwegian University of Science and Technology, Dept. Cancer Research and Molecular Medicine, N-7491 Trondheim, Norway;1. Ethnopharmacology Unit, Research Department of Botany, V.O.Chidambaram College, Tuticorin, Tamil Nadu, India;2. Department of Botany and Research Centre, Scott Christian College (Autonomous), Nagercoil, Tamil Nadu 629003, India |
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| Abstract: | The efficacy of gamma irradiation as a method of decontamination for food and herbal materials is well established. In the present study, Glycyrrhiza glabra roots were irradiated at doses 5, 10, 15, 20 and 25 kGy in a cobalt-60 irradiator. The irradiated and un-irradiated control samples were evaluated for phenolic contents, antimicrobial activities and DPPH scavenging properties. The result of the present study showed that radiation treatment up to 20 kGy does not affect the antifungal and antibacterial activity of the plant. While sample irradiated at 25 kGy does showed changes in the antibacterial activity against some selected pathogens. No significant differences in the phenolic contents were observed for control and samples irradiated at 5, 10 and 15 kGy radiation doses. However, phenolic contents increased in samples treated with 20 and 25 kGy doses. The DPPH scavenging activity significantly (p<0.05) increased in all irradiated samples of the plant. |
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