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KMID : 0380020120270020114
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Korean Journal of Biotechnology and Bioengineering
2012 Volume.27 No. 2 p.114 ~ p.120
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Antimicrobial Activity on Respiration Diseases Inducing Bacteria and Antioxidant Activity of Water Extracts from Wild Edible Vegetables
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Lee In-Soon
Moon Hae-yeon
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Abstract
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To investigate the antimicrobial activity on bacteria causing a respiration disease and antioxidant effects of water extracts from 12 kinds of wild edible vegetables, we extracted the water extracts for 72 h in 7℃ using distilled water as solvent. The water extracts except Ixeris dentate and Allium monanthum had high concentrationsof phenol compounds and flavonoids. Liguraia fischeri specially had the highest level on total phenol compounds and flavonoids with 205 μg/mL and 98. 86 μg/mL, respectively. The each 0.05% extracts of Sedum sarmentosum and Liguraia fischeri had high effect on the DPPH radical scavenging activity among wild edible vegetables and the most extracts promoted antioxidant activity with increasing concentration of extract. The catalase activity of Erysimum aurantiacum and Aralia elata showed more than 150 units per g of fresh tissue. The effect of antimicrobial activity on water extracts showed characteristic activity. Only Staphylococcus aureus KCTC 1928 and Corynebacterium diptheriae KCTC 3075 were inhibited cell growth on the other hands, the remainder of bacteria was not inhibited cell growth. Nevertheless, the extracts of wild edible vegetables had specific concentration as MIC for antimicrobial activity respectively. In case of the extract of Aster scaber, Erysimum aurantiacum, and Allium monanthum had over 30% antimicrobial activity on the bacteria causing a respiration disease. In results, the wild edible vegetables include high concentrations of total phenol compounds and flavonoids that give a good antioxidant activity and antimicrobial activity. Therefore the wild edible vegetables are functional food for anti-aging and physiological activation.
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KEYWORD
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Wild edible vegetables, Antioxidant activity, Antimicrobial activity, Anti-aging, Respiration diseases
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