Purification and characterization of acidic proteo-heteroglycan from the fruiting body of Phellinus linteus (Berk. & MA!Curtis) Teng

被引：103

作者：

Kim, GY ^{[1
]}

Park, HS ^{[1
]}

Nam, BH ^{[1
]}

Lee, SJ ^{[1
]}

Lee, JD ^{[1
]}

机构：

[1] Pusan Natl Univ, Coll Nat Sci, Dept Microbiol, Pusan 609735, South Korea

来源：

BIORESOURCE TECHNOLOGY | 2003年 / 89卷 / 01期

关键词：

Phellinus linteus; glucan; polysaccharide; FT-IR; NMR;

D O I：

10.1016/S0960-8524(02)00273-0

中图分类号：

S2 [农业工程];

学科分类号：

0828 ;

摘要：

Phellinus linteus is a well-known oriental medicinal fungus that has various biological activities such as stimulation of humoral and cell mediated immunity, anti-mutagenicity activity, and anti-cancer activity. The process of isolating and purifying a water-soluble glycan from P. linteus was achieved by hot water extraction, filtration, solvent precipitation, dialysis, and freeze-drying. Acidic fractions of the polysaccharide were separated from crude polysaccharides by DEAE-cellulose anion exchange chromatography at 0.4 M NaCl. The molecular weight of the proteo-heteroglycan after Sepharose CL-4B gel filtration chromatography was about 150,000. The acidic proteo-heteroglycan consisted of 72.2% polysaccharide and 22.3% protein. The sugar of the proteoheteroglycan was composed of mannose, galactose, glucose, arabinose, and xylose. The amino acid pattern showed that the fractions contained large amounts of aspartic acid, glutamic acid, alanine, glycine, and serine. The fractions for both alpha-glycan at 860 cm(-1) and beta-glycan at 910 cm(-1) had the characteristics of IR spectrum absorption as compared to those for beta-glucan derived from Lentinus edodes. A C-13 and H-1 NMR spectroscopy showed that the acidic proteo-heteroglycan was a noble biomolecule mixed both alpha- and beta-linkages, and a (1,6) branched type (1,3) glycan. (C) 2002 Elsevier Science Ltd. All rights reserved.

引用

页码：81 / 87

页数：7

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