食品科学 ›› 2011, Vol. 32 ›› Issue (23): 143-146.doi: 10.7506/spkx1002-6630-201123028

• 基础研究 • 上一篇    下一篇

不同石榴品种花色苷、总多酚含量及抗氧化活性比较研究

李巨秀,张小宁,李伟伟   

  1. 西北农林科技大学食品科学与工程学院
  • 出版日期:2011-12-15 发布日期:2011-12-21

Comparative Studies of Total Anthocyanins, Total Polyphenols and Antioxidant Activities of Different Pomegranate Varieties

LI Ju-xiu,ZHANG Xiao-ning,LI Wei-wei   

  1. ( College of Food Science and Engineering, Northwest A&F University, Yangling 712100, China)
  • Online:2011-12-15 Published:2011-12-21

摘要: 石榴中含有丰富的花色苷和多酚类物质,具有良好的抗氧化活性。以5个石榴品种(大叶天红蛋、大红酸、净皮甜、御石榴和喀什红子酸石榴)为实验材料,分析其总花色苷、总多酚含量,并用DPPH、FRAP、ABTS、螯合亚铁离子法测定抗氧化活性,比较不同石榴品种总花色苷、总多酚含量及抗氧化活性。结果表明:不同石榴品种总花色苷含量范围为3.54~13.89mg/100g,总多酚含量范围为38.89~68.28mg/100g;清除DPPH自由基范围为24.30%~45.73%;FRAP法测得的还原力范围为0.38~0.78;清除ABTS+ ·能力范围为58.02%~83.40%;螯合亚铁离子能力范围为14.73%~70.60%。相对而言,喀什红子酸石榴抗氧化活性较好,其次为御石榴。

关键词: 石榴品种, 花色苷, 总多酚, 抗氧化活性

Abstract: Pomegranate is one of the major sources of polyphenoles and anthocyanins, which reveal high antioxidant activity. The contents of total anthocyanins and total polyphenols in pomegranate from 5 main varieties in China were determined, and their antioxidant activity was assessed by DPPH and ABTS radical scavenging assays, FRAP assay, ferrous ion-chelating assay.. The contents of total anthocyanins and total polyphenols were in the range of 3.54-13.89 mg/100 g and 38.89-68.28 mg/100 g fresh pomegranate arils, respectively. The scavenging rates against DPPH and ABTS radicals were 24.30%-45.73% and 58.02%-83.40%, respectively, the results of FRAP assay 0.38-0.78, and the results of ferrous ion-chelating assay 14.73%-70.60%. Of the cultivars investigated, Kashen red seed sour pomegranate had the most powerful antioxidant activity followed by Yu pomegranate.

Key words: pomegranate cultivars, anthocyanins, total polyphenols, antioxidant activity

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