曾少敏;杨健;王龙;王苏珂;李秀根;

• 1:中国农业科学院郑州果树研究所

摘要(Abstract)：

【目的】探明梨不同系统和不同品种间酚类物质含量分布特征,筛选具抗氧化活性的优良品种。【方法】以5大栽培梨系统的38个品种成熟果实为试材,测定果肉中绿原酸、总黄酮及总酚含量,并采用铁离子还原能力(FRAP)法、DPPH和ABTS+·自由基清除法评价其抗氧化能力差异,分析其酚类物质含量和抗氧化能力的关系。【结果】不同梨系统间绿原酸、总黄酮、总酚含量和抗氧化能力均表现为秋子梨最高,新疆梨、西洋梨和白梨次之,砂梨最低;不同梨系统内品种间亦存在差异。酚类物质含量与抗氧化能力间具有极显著的相关性(P≤0.01),相关系数和关联度均表现为"总酚>总黄酮>绿原酸"。【结论】秋子梨系统果实果肉中酚类物质含量和抗氧化能力高于其他系统,且具有较为丰富的遗传多样性;‘红南果’品种在各项指标上均明显高于其他品种,具有较高的抗氧化潜能和利用价值。

关键词(KeyWords)： 梨;果实;酚类物质;抗氧化能力

Abstract:

Keywords:

基金项目(Foundation): 国家科技计划(2013BAD02B01);; 云南省科技计划(2011BB004)

作者(Author): 曾少敏;杨健;王龙;王苏珂;李秀根;

Email:

DOI: 10.13925/j.cnki.gsxb.2014.01.009

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