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논문 기본 정보

자료유형
학술저널
저자정보
Kim , Woo-Jung (Department of Biotechnology and The Biomaterial Engineering Research Center, The Catholic University of Korea) Kim, Sung-Min (Department of Biotechnology and The Biomaterial Engineering Research Center, The Catholic University of Korea) Kim, Hyun-Guell (Department of Biotechnology and The Biomaterial Engineering Research Center, The Catholic University of Korea) Oh, Hye-Rim (Department of Biochemistry, Konyang university, Konyang University Hospital) Lee, Kyung-Bok (Department of Biochemistry, Konyang university, Konyang University Hospital) Lee, Yoo-Kyung (Polar BioCenter, Korea Polar Research Institute, KORDI) Park, Yong-Il (Department of Biotechnology and The Biomaterial Engineering Research Center, The Catholic University of Korea)
저널정보
한국조류학회(藻類) Algae Algae 제22권 제3호
발행연도
2007.1
수록면
247 - 252 (6page)

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초록· 키워드

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Crude fucoidan was extracted from the sporophyll of Korean Undaria pinnatifida collected at a coastal area ofWando, Korea, mainly by dilute acid extraction, ethanol precipitation, CaCU Precipitation, with an yield of approxi-mately 3.9% in mass. It was further purified by DEAE-cellulose column chromatography and its chemical composi-don and in vitro anticoagulant activity was determined. The average molecular mass of the purified fucoidan wasestimated about 2.1 x 103 kDa by size-fractionation HPLC and it consisted of neutral sugar (52.34% in mass), uronicacid (26.2%), and sulfate esters (7.4%). From the HPAEC-PAD analysis, the monosaccharide composition of thepurified fucoidan was shown to be fucose, galactose, xylose, and mannose, with a molar ratio of 1, 0.2, 0.02, 0.15,respectively, demonstrating that major monosacd-iande was fucose (72.3% in mol percentage) and other sugars,xylose (1.5%), galactose (14.6%), and mannose (10.9%) were present as minor component. The results suggested thatthis fucoidan is a sulfated, U-type fucoidan. The activated partial thrombloplastin time (APTT) assay of the purifiedfucoidan showed that the purified fucoidan elicited anticoagulant activity in a dose-dependent manner. Five jUg ofsporophyll fucoidan delayed the blood clotting time up to 5 times than untreated control and also up to 1.5 timesthan the same amount of the commercial fucoidan, respectively. Although it is preliminary, these results suggestthat the fucoidan of Korean Undaria vinnatifida sporophyll would be promising candidates for the development ofan anticoaeulant.

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