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首页> 外文期刊>International Journal of Biological Macromolecules: Structure, Function and Interactions >Characterization and antioxidant activity of two low-molecular-weight polysaccharides purified from the fruiting bodies of Ganoderma lucidum
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Characterization and antioxidant activity of two low-molecular-weight polysaccharides purified from the fruiting bodies of Ganoderma lucidum

机译：从灵芝子实体中纯化的两种低分子量多糖的表征和抗氧化活性

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摘要

Two low-molecular-weight polysaccharides, GLP(L)1 and GLP(L)2, purified from a crude Ganoderma lucidum polysaccharide preparation GLPP were investigated for their physicochemical properties. structure characterization and antioxidant activities The results indicated that GLP(L)1 was a glucan with an average molecular weight of 5 2 kDa, while GLP(L)2 was composed of glucose, galactose and mannose in a ratio of 29 1 8 1.0 with the average molecular weight of 15.4 kDa GLP(L)1 and GLP(L)2 had similar structure characteristic which contained linkages such as -> 3)-Glcp-(1 ->,-> 4)-Glcp-(1 ->,-> 6)-Glcp-(1 ->,-> 3,6)-Glcp-(1 ->, and -> 4,6 )-Glcp-(1 -> in the percentage ratio of 21.9 20 3 23.7 24 0 3 7 and 23 0 34 6 7 0 14.1 3.0 in the backbone or branches, respectively Antioxidant results showed that both GLP(L)1 and GLP(L)2 exhibited antioxidant activities while GLP(L)1 was more effective in free radicals scavenging and Fe2+ chelating. Low-molecular-weight polysaccharide seems to play an important role in the exploration of natural antioxidants in food industry and pharmaceuticals.
机译：研究了从灵芝粗多糖制剂GLPP中纯化得到的两种低分子量多糖GLP（L）1和GLP（L）2的理化性质。结构表征和抗氧化活性结果表明，GLP（L）1是一种葡聚糖，平均分子量为5 2 kDa，而GLP（L）2由葡萄糖，半乳糖和甘露糖组成，比例为29 1 8 1.0。平均分子量为15.4 kDa的GLP（L）1和GLP（L）2具有相似的结构特征，其中包含-> 3）-Glcp-（1->，-> 4）-Glcp-（1-> ，-> 6）-Glcp-（1->，-> 3,6）-Glcp-（1->和-> 4,6）-Glcp-（1->的百分比比例为21.9 20 3 23.7 24 0 3 7和23 0 34 6 7 0 14.1 3.0分别在主链或分支中的抗氧化剂结果表明，GLP（L）1和GLP（L）2均表现出抗氧化活性，而GLP（L）1在游离时更有效低分子量多糖似乎在探索食品工业和制药业中的天然抗氧化剂中起着重要作用。

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