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Antioxidant, Antimicrobial, and Antiproliferative Activities of Olive (Olea europaea L.) Leaf Extracts  

Ko, Ki-Wan (Graduate School of Complementary Alternative Medicine, CHA University)
Kang, Ho-Jin (Department of Chemical and Biotechnology, Korea Polytechnic University)
Lee, Boo-Yong (Graduate School of Complementary Alternative Medicine, CHA University)
Publication Information
Food Science and Biotechnology / v.18, no.3, 2009 , pp. 818-821 More about this Journal
Abstract
Total phenol, total flavonoid, reducing powder, electron donating activity, ascorbic acid equivalent antioxidant capacity, antimicrobial and antiproliferative activities of olive leaf extracts were investigated. The contents of total phenol and flavonoid were 257.48 and 92.33 mg in 100 g of olive leaf extract, respectively. The reducing power of the olive leaf extract increased with concentration increasing. Electron donating activity was high in 100 ${\mu}g/mL$ treated olive leaf extract as 95.20%. The ascorbic acid equivalent antioxidant capacity of the olive leaf extract was 68.93 mg/g olive leaf extract. The olive leaf extracts showed relatively high antimicrobial activity against Escherichia coli, Salmonella typhimurium, Bacillus cereus, Staphylococcus aureus, Listeria monocytogenes, and Pseudomonas aeruginosa. All of the cancer cell lines including MKN45, HCT116, NCI-H460, and MCF7 have 70-81% as effective growth inhibition.
Keywords
antioxidant; antimicrobial; antiproliferative; olive leaf extract;
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Times Cited By Web Of Science : 0  (Related Records In Web of Science)
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