Journal
INDUSTRIAL CROPS AND PRODUCTS
Volume 61, Issue -, Pages 41-48Publisher
ELSEVIER
DOI: 10.1016/j.indcrop.2014.06.037
Keywords
Ajuga iva; Marrubium vulgare; Mentha pulegium; Teucrium polium; Antibacterial activity; Antioxidant activity; Phenolic compounds
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In this study, methanolic extracts of four Lamiaceae (Ajuga iva, Marrubium vulgare, Mentha pulegium, and Teucrium polium) were studied for antioxidant and antibacterial activities as well as for polyphenols contents. The antioxidant activity of extracts was evaluated with the use of three assays (reducing power, DPPH assay, and hydrogen peroxide scavenging assay). Generally, the examined plants can be devised in two groups; the first one regrouped plants with high antioxidant activity (M. pulegium and T. polium) and the second one regrouped plants with low activity (M. vulgare and A. iva). The antioxidant activity of extracts showed strong positive correlation with total phenolics and total flavonoids. The antibacterial effect of extracts against Escherichia cob and Staphylococcus aureus has been reported by agar disk diffusion and micro-dilution methods. Escherichia coli was more sensitive to the extracts than S. aureus and the most effective extract was M. vulgare. (C) 2014 Elsevier B.V. All rights reserved.
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