산딸나무의 부위별 추출물 및 용매 분획물의 생리활성 비교

• 영문명: Comparison of Biological Activities of Extracts fromDifferent Parts and Solvent Fractions in Cornus kousa Buerg
• 발행기관: 한국자원식물학회
• 저자명: 김영중(Young Jung Kim) 정진아(Jin-A Jeong) 권수현(Su-Hyun Kwon) 이철희(Cheol Hee Lee)
• 간행물 정보: 『한국자원식물학회지』제21권 제1호, 28~35쪽, 전체 8쪽
• 주제분류: 농수해양 > 기타농수해양
• 파일형태: PDF
• 발행일자: 2008.02.28

영문 초록

Several extracts of different parts and solvent fractions of Cornus kousa were obtained and their functional material contents, antioxidant activities and tyrosinase inhibition effects were determined. Content of total polyphenols and flavonoids contents in flower were 169.638 mg·g-1 and 25.418 mg·g-1, respectively, which were much higher than those of other parts. Also, flower extracts showed the strongest effects on DPPH and ABTS radicals scavenging and ferrous ion chelating. In flower, leaf, and stem extracts, inhibition effects on peroxidation of linoleic acid determined by ferric thiocyanate (FTC) method were higher than a synthetic antioxidant, BHT. Tyrosinase inhibition activities were shown only in flower extract. Flower and leaf extracts, showing high biological activities in various system, were successively reextracted with n-hexane, chloroform, ethylacetate and n-butanol. Total polyphenol contents of water fractions were higher than any other solvent fractions in both flower and leaf, 67.006mg·g-1 and 66.739mg·g-1, respectively. But total flavonoid contents were higher in ethyl acetate fraction for flower extract and butanol fraction for leaf extract. Among the solvent fractions, the highest efficiency of free radical scavenging activities was obtained in ethyl acetate fraction for flower extract and n-butanol fraction for leaf extract. Tyrosinase inhibition activities were higher in water fraction for both flower and leaf extracts, 49.24% and 31.8%, respectively.

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재료 및 방법

결과 및 고찰

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키워드

Functional materials Antioxidant activities Tyrosinase inhibition Polyphenols Flavonoids