Chemical Composition and Antioxidant Activities of Three Polysaccharide Fractions from Pine Cones

文献类型： 外文期刊

第一作者： Xu, Ren-Bo

作者： Xu, Ren-Bo;Yang, Xin;Zhao, Hai-Tian;Lu, Wei-Hong;Cui, Jie;Cheng, Cui-Lin;Zou, Pan;Huang, Wei-Wei;Wang, Pu;Li, Wen-Jing;Hu, Xing-Long;Yang, Xin;Wang, Jing;Wang, Jing

作者机构：

关键词： Pinus;pine cone polysaccharide;GC-MS;antioxidant activity

期刊名称：INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES （ 影响因子：5.923； 五年影响因子：6.132 ）

ISSN： 1422-0067

年卷期： 2012 年 13 卷 11 期

页码：

收录情况： SCI

摘要： The traditional method of gas chromatography-mass spectrometry for monosaccharide component analysis with pretreatment of acetylation is described with slight modifications and verified in detail in this paper. It was then successfully applied to the quantitative analysis of component monosaccharides in polysaccharides extracted from the pine cones. The results demonstrated that the three pine cone polysaccharides all consisted of ribose, rhamnose, arabinose, xylose, mannose, glucose and galactose in different molar ratios. According to the recovery experiment, the described method was proved accurate and practical for the analysis of pine cone polysaccharides, meeting the need in the field of chemical analysis of Pinus plants. Furthermore; the chemical characteristics, such as neutral sugar, uronic acids, amino acids, molecular weights, and antioxidant activities of the polysaccharides were investigated by chemical and instrumental methods. The results showed that the chemical compositions of the polysaccharides differed from each other, especially in the content of neutral sugar and uronic acid. In the antioxidant assays, the polysaccharide fractions exhibited effective scavenging activities on ABTS radical and hydroxyl radical, with their antioxidant capabilities decreasing in the order of PKP > PAP > PSP. Therefore, although the polysaccharide fractions had little effect on superoxide radical scavenging, they still have potential to be developed as natural antioxidant agents in functional foods or medicine.

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