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논문 기본 정보

자료유형
학술저널
저자정보
저널정보
한국생명과학회 생명과학회지 생명과학회지 제12권 제1호
발행연도
2002.2
수록면
87 - 95 (9page)

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It was observed that the hot water extract of the leaves of Capsicum annuum L., a Korean edible plant, had a potent anti-complementary activity. Crude polysaccharide fraction(CAL-0) was obtained by methanol reflux, ethanol precipitation, dialysis and lyophilization. CAL-0 contained 51.8% of total sugar, 8.2% of uronic acid and 16.8% of protein, and consisted of mainly arabinose, galactose and glucose as neutral sugars and galacturonic acid as uronic acid. The anti- complementary activity of CAL-0 decreased greatly by periodate oxidation, but was not changed by pronase treatment. Also, the anti-complementary activity of CAL-0 was reduced partially in the absence of the Ca2+ ion. The crude polysaccharide CAL-0 was found to activate the C3 component both in the presence and in the absence of Ca2+ through the crossed- immunoelectrophoresis suggesting that those involved in both classical and alternative complement pathway. CAL-0 was further separated to an unabsorbed fraction(CAL-1) and six absorbed fractions(CAL-2→CAL-7) on DEAE Sepharose CL-6B ion exchange column. Among them four major fractions in activity and yield were obtained, and consisted mainly of arabinose, galactose and glucose with various molar ratios. The major fraction, CAL-2, was purified to give a high molecular fraction(CAL-2-I) and a low molecular fraction(CAL-2-II) on Sepharose CL-6B column. The anti- complementary activity of CAL-2-I, a molecular weight of about 61,000, was higher than it of CAL-2-II.

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UCI(KEPA) : I410-ECN-0101-2009-470-013836703