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中国精品科技期刊2020
张晓艳, 王波, 黄攀, 严帆. 马齿苋不同器官多糖提取物的抗氧化性研究[J]. 食品工业科技, 2017, (05): 130-133. DOI: 10.13386/j.issn1002-0306.2017.05.016
引用本文: 张晓艳, 王波, 黄攀, 严帆. 马齿苋不同器官多糖提取物的抗氧化性研究[J]. 食品工业科技, 2017, (05): 130-133. DOI: 10.13386/j.issn1002-0306.2017.05.016
ZHANG Xiao-yan, WANG Bo, HUANG Pan, YAN Fan. Study on the antioxidant activities of polysaccharide extracts from different organs of Portulace oleracea L.[J]. Science and Technology of Food Industry, 2017, (05): 130-133. DOI: 10.13386/j.issn1002-0306.2017.05.016
Citation: ZHANG Xiao-yan, WANG Bo, HUANG Pan, YAN Fan. Study on the antioxidant activities of polysaccharide extracts from different organs of Portulace oleracea L.[J]. Science and Technology of Food Industry, 2017, (05): 130-133. DOI: 10.13386/j.issn1002-0306.2017.05.016

马齿苋不同器官多糖提取物的抗氧化性研究

Study on the antioxidant activities of polysaccharide extracts from different organs of Portulace oleracea L.

  • 摘要: 利用超声法提取马齿苋根、茎、叶和花中的多糖,研究马齿苋不同器官多糖含量及其抗氧化性。结果表明:马齿苋茎的多糖得率最高,达到7.65%;叶的多糖提取物浓度分别为9 mg/m L和10 mg/m L时对羟基自由基和超氧阴离子自由基的清除能力最强,清除率分别达到91.42%和78.02%;根的多糖提取物浓度为10 mg/m L时,对DPPH自由基清除能力最强,清除率达到99.41%;多糖提取物还原能力较强的部位是根,在多糖浓度为5 mg/m L时还原能力达到最大值0.80。在不同的自由基体系中,马齿苋不同部位多糖提取物对三种自由基具有较好的清除效果及较强的还原能力,且其抗氧化效果与多糖提取物的质量浓度呈明显的量效关系。 

     

    Abstract: The study researched the polysaccharides content and antioxidant activities of Portulace oleracea L. by using ultrasonic extraction method to extract the polysaccharides of the root, stem, leaf and bud. Results presented that the polysaccharides extraction rate in stem was the highest, which reached to 7.65%.The scavenging rates of hydroxyl radical and superoxide anion were 91.42% and 78.02%, when the extract concentration of leaf reached to 9 mg/m L and 10 mg/m L, respectively.When the concentration of polysaccharide extracts in root was 10 mg/m L, it had the highest scavenging capability to DPPH free radical, which could reach to 99.41%.The polysaccharide extracts in root area had high reducibility.When the concentration was 5 mg/m L, the maximum reducibility could reach to 0.80. In the different radical systems, the scavenging capacity to the hydroxyl radical, superoxide anion, DPPH free radicaland reducing ability of polysaccharide extracts from different organs of Portulace oleracea L.were extraordinary, meanwhile, the antioxidant capacity of polysaccharide extracts had a dose-effect relationship with the mass concentration.

     

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