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KMID : 0613820080180081140
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Journal of Life Science
2008 Volume.18 No. 8 p.1140 ~ p.1146
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Antioxidant and Anticancer Activities of Traditional Kochujang Added with Garlic Porridge
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Song Ho-Su
Kim Young-Mog
Lee Keun-Tai
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Abstract
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In order to improve the functional properties of kochujang, garic porridge was added to traditional kochujang during manufacturing. Changes in physiochemical properties of kochujang by garic porridge addition were then investigated. No big differences in general chemical compositions was observed between three kinds of kochujangs tested in this study, general kochujang purchased from a market (GK), kochujang added with raw garlic (RGK) and kochujang added with garlic porridge (GPK). However, GPK showed higher level of antioxidant and anticancer activities than those of others. The methanolic extract of GPK showed 66.38% of DPPH radical scavenging activity, while the extracts of GK and RGK exhibited 38.44% and 50.97%, respectively. Also, the effects of three different extracts of kochujangs on cell proliferation of stomach cancer cell (MKN 45), colon cancer cell (HCT116), and lung cancer cell (NCI-H460) were investigated using MTT assay. All of three extracts exhibited the highest anti-proliferative activity against stomach cancer cell, even though the proliferation of colon cancer cell and lung cancer cell were also inhibited. Among them, the extract of GPK showed the highest anti-proliferative activity (62.35%) against stomach cancer cell. From the results obtained in the present study, we concluded that the antioxidant and anticancer activity of GPK mainly originated from garlic because GPK was consisted of 23% garlic (w/w) compared to 10% (w/w) of RGK.
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KEYWORD
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Garlic porridge, kochujang, antioxidant, anticancer
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