Chemical characters and antioxidative properties of sulfated polysaccharides from Laminaria japonica

被引：180

作者：

Xue, CH ^{[1
]}

Fang, Y ^{[1
]}

Lin, H ^{[1
]}

Chen, L ^{[1
]}

Li, ZJ ^{[1
]}

Deng, D ^{[1
]}

Lu, CX ^{[1
]}

机构：

[1] Ocean Univ Qingdao, Dept Food Sci & Technol, Qingdao 266003, Shandong, Peoples R China

来源：

JOURNAL OF APPLIED PHYCOLOGY | 2001年 / 13卷 / 01期

关键词：

antioxidant; chemical characters; fucoidan; Laminaria japonica; LDL; low-density lipoprotein;

D O I：

10.1023/A:1008103611522

中图分类号：

Q81 [生物工程学（生物技术）]; Q93 [微生物学];

学科分类号：

071005 ; 0836 ; 090102 ; 100705 ;

摘要：

A low molecular weight sulfated polysaccharide (L-A) was prepared by mild acid hydrolysis of crude fucoidan (F-A) from Laminaria japonica. In comparison with F-A, L-A had a lower proportion of fucose residues, but a similar proportion of sulfate. The galactose content of both fractions was relatively high, especially for L-A (57%). The antioxidant properties of the two polysaccharides were studied using two low-density lipoprotein oxidation systems. L-A had a stronger effect against low-density lipoprotein oxidation in both systems. F-A inhibited the AAPH-induced low-density lipoprotein oxidation, but had little effect on the Cu++-induced system due to its large molecular mass. The active sulfated fraction L-A, containing galactose, mannose and fucose (about 9: 2: 2) is reported here for the first time.

引用

页码：67 / 70

页数：4

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