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KMID : 0380620070390040452
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Korean Journal of Food Science and Technology
2007 Volume.39 No. 4 p.452 ~ p.457
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Antioxidative and Antimicrobial Activities of Lilium Species Extracts Prepared from Different Aerial Parts
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Joung Yong-Myeon
Park Soo-Jin
Lee Ki-Young
Lee Ji-Yong
Suh Jeung-Keun
Hwang Seong-Yun
Park Kyung-Eun
Kang Myung-Hwa
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Abstract
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In this study, Lilium sp. were separated into bulbs, leaves, and flowers. Then, total polyphenol contents, electron donating ability (EDA), superoxide dismutase (SOD)-like activity, hydroxyl radical scavenging activity, and antimicrobial activity were measured from the extracts of each of the three aforementioned parts. The examination of physiologically active substances in the three parts revealed that Lilium davidii leaves had high total polyphenol contents, SOD-like activity, hydroxyl radical scavenging activity, and EDA, while the flowers of L. lancifolium showed high SOD-like activity, hydroxyl radical scavenging activity, and EDA, as well as a high level of total polyphenols in the bulb. Measurements of the antimicrobial activities of the extracts against Gram positive bacteria revealed that the leaves and flowers of L. davidii and L. lancifolium caused Bacillus subtilis and Salmonella enteritidis to form clear zones greater than 10mm. Furthermore, the flowers of L. lancifolium showed particularly high antimicrobial activity against B. subtilis, and the flowers of L. davidii had high activity against S. enteritidis. For the Gram negative bacteria, the leaves and flowers of L. davidii and L. lancifolium caused Listeria monocytogenes and Escherichia coli to form clear zones greater than 10mm, and finally, the flowers of L. davidii and L. lancifolium showed high antibacterial activity, with inhibition exceeding 12mm.
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KEYWORD
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antimicrobial activity, antioxidant, L. davidii, L. Lancifolium
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