圆铃枣主要活性成分抗氧化特性研究  

Identification of Main Antioxidant Components and Antioxidant Activities of Zizyphus Jujuba Cv.Yuanlingzao

作　　者：邹曼 张倩[1] 马亚男[1] 张琼[1] 陈义伦[2] ZOU Man;ZHANG Qian;MA Yanan;ZHANG Qiong;CHEN Yilun(Shandong Institute of Pomology,Tai’an 271000,China;Shandong Agricultural University,Tai’an 271000,China)

机构地区：[1]山东省果树研究所,山东泰安271000 [2]山东农业大学,山东泰安271000

出　　处：《食品科技》2021年第9期228-232,共5页Food Science and Technology

基　　金：山东省现代农业产业技术体系水果创新团队专项基金项目(SDAIT-06-13);山东省农业科学院农业科技创新工程学科团队建设项目(CXGC2018E22);山东省农业科学院农业科技创新工程项目(CXGC2017D01,CXGC2018E22)。

摘　　要：以圆铃枣中提取分离得到的多糖、多酚、黄酮和皂苷为对象,通过铁离子还原能力和DPPH自由基、羟自由基、超氧阴离子自由基清除能力试验,研究了圆铃枣中活性成分的抗氧化特性,并对纯化后的多酚组分进行了鉴定。结果表明,圆铃大枣主要抗氧化成分为多酚,黄酮和皂苷次之,多糖抗氧化能力较小,多酚的还原能力、羟自由基清除率和超氧阴离子自由基清除率最高,黄酮DPPH自由基清除率最高;经树脂和葡聚糖凝胶纯化后的多酚主要组分为原儿茶酸、阿魏酸,含量分别为0.114 mg/g和0.022 mg/g,且多酚经纯化后抗氧化能力增强。The effect of bioactive components of polysaccharide,polyphenols,flavonoids and saponins extracted in the Ziziphus Jujuba cv.Yuanlingzao on the reducing capacity of the iron ions,the DPPH free radicals,hydroxyl radicals and superoxide anion radical scavenging ability were studied in the work.And the purified polyphenols were identified.The results showed that the main antioxidant components of jujube were polyphenols,followed by flavonoids and saponins,and the polysaccharides had less antioxidant capacity.The reduction capacity,hydroxyl radical scavenging rate and superoxide anion radical scavenging rate of polyphenols were the highest,and the DPPH radical scavenging rate of flavonoids was the highest.The polyphenols purified by resin and dextran gel contained protocatechuic acid and ferulic acid,and the contents were 0.114 mg/g and 0.022 mg/g,respectively.And the antioxidant capacity of polyphenols was enhanced after purification.

关 键 词：多酚 多糖 黄酮 皂苷 抗氧化能力 

分 类 号：R284.2[医药卫生—中药学]