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中国精品科技期刊2020
陈玮琦, 郭玉蓉, 张娟, 张晓瑞. 苹果枝条多酚分离纯化及其抗氧化活性研究[J]. 食品工业科技, 2015, (04): 231-236. DOI: 10.13386/j.issn1002-0306.2015.04.042
引用本文: 陈玮琦, 郭玉蓉, 张娟, 张晓瑞. 苹果枝条多酚分离纯化及其抗氧化活性研究[J]. 食品工业科技, 2015, (04): 231-236. DOI: 10.13386/j.issn1002-0306.2015.04.042
CHEN Wei-qi, GUO Yu-rong, ZHANG Juan, ZHANG Xiao-rui. Study on the extraction and purification of polyphenols from apple branch and their antioxidative activities[J]. Science and Technology of Food Industry, 2015, (04): 231-236. DOI: 10.13386/j.issn1002-0306.2015.04.042
Citation: CHEN Wei-qi, GUO Yu-rong, ZHANG Juan, ZHANG Xiao-rui. Study on the extraction and purification of polyphenols from apple branch and their antioxidative activities[J]. Science and Technology of Food Industry, 2015, (04): 231-236. DOI: 10.13386/j.issn1002-0306.2015.04.042

苹果枝条多酚分离纯化及其抗氧化活性研究

Study on the extraction and purification of polyphenols from apple branch and their antioxidative activities

  • 摘要: 研究了6种大孔树脂对苹果枝条多酚的吸附性能,筛选出分离苹果枝条多酚的最佳树脂为X-5,进一步研究X-5大孔树脂纯化多酚的工艺条件和技术参数。所得最佳纯化工艺为:上样浓度为1mg/m L,流速为1.0BV/h,pH5.0,以70%乙醇溶液为洗脱剂,洗脱流速为2.0BV/h。在此条件下,所得苹果枝条多酚的纯度为72.36%,提取率为0.82%。对纯化后的苹果枝条多酚抗氧化活性进行研究,结果表明:苹果枝条多酚具有较强的还原能力,对羟基自由基、DPPH自由基具有良好的清除能力。 

     

    Abstract: Adsorption and desorption properties of six kinds of macroporous resins were evaluated for isolation and purification of total polyphenols from apple branches. The results showed that X-5 resin was verified to offer the best adsorption capacity and desorption ratio for total polyphenols among the six macroporous resins investigated. Influential factors,such as pH and concentration of feeding solution,strippant,and adsorption isotherm polyphenols,were successively investigated on X-5 resin. The optimum technology were as follows,the sample concentration was 1mg/m L,the adsorption flow rate was 1BV/h,pH of the extracted solution was5.0,the strippant was 70% ethanol,the elution flow rate was 2BV/h. Under the optimum conditions,the purity of total polyphenols increased to 72.36% and the yield was 0.82%. Antioxidative activities of purified polyphenol extracts from apple branches were also studied. The results indicated that polyphenol extracted from apple branches had a strong total reducing power activity and the free radical scavenging abilities on ·OH,DPPH·were excellent.

     

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