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자료유형
학술저널
저자정보
저널정보
한국식품영양과학회 Journal of Food Science and Nutrition Journal of Food Science and Nutrition Vol.10 No.3
발행연도
2005.9
수록면
244 - 250 (7page)

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The copper-containing enzyme, tyrosinase, catalyzes the oxidation of tyrosine into dihydroxy phenylalanine (DOPA) and subsequently DOPAquinone. It is responsible, not only for the pigment melanin biosynthesis in human skin, but also for browning in foods. In the present study, tyrosinase inhibitory and antioxidant activities of Korean mistletoe extract and its fractions were investigated. As a result, both water and methanol (MeOH) extracts inhibited the tyrosinase activity. Among the fractions, the fraction eluted with 95% MeOH significantly inhibited the tyrosinase activity. The fraction was further purified, and the purified fraction C strongly inhibited the enzyme activity up to 92%. In addition, water and methanol extracts exerted radical scavenging effects. The fractions eluted with 70% MeOH and 95% MeOH showed high radical scavenging activities. In conclusion, these results suggest that Korean mistletoe extract and its fractions might be useful for the treatment of various dermatological disorders such as epidermal hyperpigmentation and for improving food quality.

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Abstract

INTRODUCTION

MATERIALS AND METHODS

RESULTS AND DISCUSSION

ACKNOWLEDGEMENTS

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