邱珊莲;林宝妹;洪佳敏;张少平;张帅;郑菲艳;林碧珍;郑开斌;

• 1:福建省农业科学院亚热带农业研究所

摘要(Abstract)：

【目的】比较‘沙巴’树葡萄植株不同部位醇提物抗氧化活性、抑制α-葡萄糖苷酶活性、总多酚和总黄酮含量,探讨生物活性与活性成分的相关性。【方法】以‘沙巴’树葡萄植株不同部位为试材,研究其70%(ω)乙醇提取物对DPPH·、·OH、ABTS+3种自由基的清除能力、对α-葡萄糖苷酶的抑制活性及其多酚和黄酮含量。【结果】树葡萄植株不同部位醇提物多酚与黄酮含量、抗氧化能力和α-葡萄糖苷酶抑制活性存在明显差异;植株各部位多酚含量(ω,后同)介于1.51²74.72 mg·g274.72 mg·g^(-1),黄酮含量介于0.66(-1),黄酮含量介于0.66¹11.94 mg·g111.94 mg·g^(-1),嫩叶多酚及黄酮含量最高,果肉最低;3种抗氧化活性体系研究结果均表明,嫩叶醇提物的抗氧化活性最强,果皮次之,果肉最弱;对α-葡萄糖苷酶的抑制活性也以嫩叶醇提物最强,其次为根和茎,各部位抑制活性均远高于阳性对照阿卡波糖;多酚含量与抗氧化能力、抑制α-葡萄糖苷酶能力均呈极显著正相关(P<0.01),黄酮含量与抗氧化活性呈极显著正相关(P<0.01),与抑制α-葡萄糖苷酶活性呈显著正相关(P<0.05)。【结论】树葡萄植株不同部位中,嫩叶醇提物多酚及黄酮含量最高,其抗氧化活性、抑制α-葡萄糖苷酶活性最强,可用于天然抗氧化剂和α-葡萄糖苷酶抑制剂的开发。

关键词(KeyWords)： 树葡萄;不同部位;多酚;黄酮;抗氧化;α-葡萄糖苷酶

Abstract:

Keywords:

基金项目(Foundation): 福建省农业科学院青年英才计划(YC2015-19);福建省农业科学院青年创新团队项目(STIT2017-3-4);福建省农业科学院生产性工程化实验室中试项目(AG2017-5)

作者(Authors): 邱珊莲;林宝妹;洪佳敏;张少平;张帅;郑菲艳;林碧珍;郑开斌;

DOI: 10.13925/j.cnki.gsxb.20170316

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