Antioxidant activities of novel small-molecule polysaccharide fractions purified from Portulaca oleracea L.
Antioxidant activities of novel small-molecule polysaccharide fractions purified from Portulaca oleracea L.
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从马齿苋中纯化的新型小分子多糖组分的抗氧化活性。
DOI：
10.1007/s10068-014-0278-y
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发表时间：
2014-12-01
影响因子：
2.9
通讯作者：
Wang, Chen-Xi
中科院分区：
文献类型：
--
作者：
Li, Yu-Ping;Yao, Li-Hua;Wang, Chen-Xi
从马齿苋（PortulacaoleraceaL.）中分离纯化了两个新的小分子多糖组分，命名为POP II和POP III。平均分子量值分别为9.25和8.03 kDa。单糖分析显示POP II由Rha、Ara、Man、Glc和Gal组成，摩尔比为1：1.42：0.44：0.88：1.59。POP III由Rha、Ara、Glc和Gal组成，摩尔比为1：1.16：0.23：0.59。使用无细胞和细胞介导的自由基生成系统的馏分的抗氧化活性进行了评价。POPII和POP III在两种体系中均具有较强的抗氧化活性。从甘蓝中提取的2个新多糖组分。可开发为治疗自由基相关疾病的天然抗氧化剂。
Novel small-molecule polysaccharide fractions, named POP II and POP III, were purified from Portulaca oleracea L. with average Mw values of 9.25 and 8.03 kDa, respectively. Monosaccharide analysis revealed that POP II was composed of Rha, Ara, Man, Glc, and Gal with molar ratios of 1: 1.42: 0.44: 0.88: 1.59. POP III was composed of Rha, Ara, Glc, and Gal with molar ratios of 1: 1.16: 0.23: 0.59. The antioxidant activities of the fractions were evaluated using cell-free and cell-mediated radical generating systems. POPII and POP III possessed strong antioxidant activities in both systems. The 2 novel polysaccharide fractions extracted from P. oleracea L. can be developed as natural antioxidants for treatment of free radical-related diseases.