期刊
RUSSIAN JOURNAL OF BIOORGANIC CHEMISTRY
卷 33, 期 1, 页码 88-98出版社
MAIK NAUKA/INTERPERIODICA/SPRINGER
DOI: 10.1134/S1068162007010116
关键词
alginate; brown seaweed; fatty acids; fucoidan; glyceroglycolipid; laminaran; Laminaria gurjanovae; phospholipid
Polysaccharide and lipid composition of the Pacific brown seaweed Laminaria gurjanovae is determined. Alginic acid is shown to be the main polysaccharide of its biomass (about 28%); it consists of mannuronic and guluronic acid residues at a ratio of 3: 1. The yield of water-soluble polymannuronic acid is low and does not exceed 1.1% of dry biomass. High laminaran content (about 22%) is found, whereas the yield of fucoidan is no more than 3.6%. Laminaran consists of two fractions, soluble and insoluble in cold water, their ratio is 2.5: 1. Insoluble laminaran is a practically linear 1,3-beta-D-glucan, and the soluble fraction was shown to be 1,3;1,6-beta-D-glucan. The oligosaccharide products of desulfation or partial acidic hydrolysis of fucoidan were studied by MALDI TOF MS; they were found to be fuco- and galactooligosaccharides. The fucoidan is suggested to be a highly sulfated partially acetylated galactofucan (Fuc/Gal is similar to 1: 1). The main lipid components of the dried L. gurjanovae are neutral lipids and glyceroglycolipids, whereas phospholipids are found in minor amounts. The main fatty acid components of lipids are 14:0, 16:0, 16:1 omega-7, 18:1 omega-7 and 18:2 omega-6 acids.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据