葡萄不同组织多酚含量及抗氧化性的周年期变化  

Annual Changes of Phenolic Contents and Antioxidant Activity in Different Tissues of Grape

作　　者：薛雯[1] 房玉林[2] 戴璐 唐丽丽[1] 姚瑞祺[1] XUE Wen;FANG Yulin;DAI Lu;TANG Lili;YAO Ruiqi(Yangling Vocational and Technical College,Yangling,Shaanxi 712100,China;College of Enology,Northwest A&F University,Yangling,Shaanxi 712100,China)

机构地区：[1]杨凌职业技术学院,陕西杨凌712100 [2]西北农林科技大学葡萄酒学院,陕西杨凌712100

出　　处：《农产品加工》2021年第18期56-62,共7页Farm Products Processing

基　　金：杨凌职业技术学院2020年自然科学基金项目(ZK20-63);The Key Research and Development Program of Shaanxi Province(2018ZDXM-NY-053)。

摘　　要：为确定不同葡萄品种废弃枝条叶片的可再利用资源价值与差异,以美洲种酿酒葡萄‘Conquister’和欧美杂交种鲜食葡萄“井川1014(Yigawa 1014)”为试材,测定了不同组织多酚物质含量及抗氧化性的周年期变化。结果表明,对于不同组织中多酚类物质的含量,供试品种均呈现为叶片>新梢,但多酚含量及周年期变化因品种而异。不同组织对DPPH自由基清除力(DPPH)、羟自由基清除力(HRSC)、铁氰化钾还原力(FRAP)存在差异。DPPH自由基清除力和铁氰化钾还原力的周年期变化趋势与总酚类似;各品种不同器官中HRSC的动态变化则差异较大。相关分析表明,2个供试品种不同组织的抗氧化活性与其所含酚类物质含量呈显著或极显著正相关,其中铁氰化钾还原力与总黄酮之间的相关性最显著。To determine the reusable resources value and difference of discarded branches and leaves in different grape varieties.Using“Conquister”and“Yigawa 1014”as the test materials,experiments were conducted to study the seasonal changes of phenolic contents and antioxidant properties of different grape nutritive organs.The result showed that for the total phenolic contents,contents from leaves surplussed that from canes.But polyphenol contents and their seasonal changes varied from varieties.DPPH radical scavenging capacity,hydroxyl radical scavenging activity and potassium ferricyanide reducing power of different grapevine organs changed differently.DPPH radical scavenging capacity and potassium ferricyanide reducing power varied similarly with the total polyphenols,while hydroxyl radical scavenging activity in different organs of two grape varieties changed greatly.Correlation analysis showed that polyphenols remarked positive or significant positive correlation to the antioxidant capacities of grapevine organs,and potassium ferricyanide reducing power boasted the most significant correlation to the total flavone.

关 键 词：葡萄组织 多酚 抗氧化性 周年期变化 

分 类 号：TQ914.1[化学工程]