食品科学 ›› 2011, Vol. 32 ›› Issue (21): 41-47.doi: 10.7506/spkx1002-6630-201121010

• 基础研究 • 上一篇    下一篇

不同品种苹果化学成分及抗氧化活性比较

丁秀玲1,张京芳1,*,韩明玉2   

  1. 1.西北农林科技大学林学院 2.西北农林科技大学园艺学院
  • 收稿日期:2018-06-20 修回日期:2018-06-20 出版日期:2011-11-15 发布日期:2011-11-11

Chemical Composition and Antioxidant Activities of Different Apple Cultivars

DING Xiu-ling1,ZHANG Jing-fang1,*,HAN Ming-yu2   

  1. (1. College of Forestry, Northwest A & F University, Yangling 712100, China; 2. College of Horticulture, Northwest A & F University, Yangling 712100, China)
  • Received:2018-06-20 Revised:2018-06-20 Online:2011-11-15 Published:2011-11-11

摘要: 测定13种苹果的L-抗坏血酸、可溶性糖、滴定酸和总酚含量及pH值,比较13种苹果的抗氧化活性,包括还原力、脂质过氧化抑制率、 ·OH和DPPH自由基清除率,并依据化学成分对13种苹果进行聚类分析。结果表明,13种苹果的化学成分及抗氧化活性有差异,其中以新红星、藤牧1号和延光的抗氧化活性最强,而秦冠、粉红女士和红富士的抗氧化活性最小。苹果中的总酚含量与抗氧化活性之间显著正相关,两者均受基因型影响。聚类结果显示,美国八号、太平洋红玫瑰为抗坏血酸含量最高的一类,可溶性糖含量较高的乔纳金、太平洋红玫瑰、粉红女士、秦冠和红富士聚为一类,粉红女士为滴定酸含量最高的一类,糖酸比最高的一类是秦冠和红富士,藤牧1号、延光、新红星和乔纳金的总酚含量较高。

关键词: 苹果, 化学成分, 总酚, 抗氧化活性

Abstract: The contents of L-ascorbic acid, soluble sugar, titrable acid and total phenols and pH of 13 apple cultivars were determined. Meanwhile their antioxidant activities were also evaluated based on reducing power, scavenging capacity agaisnt 1, 1-diphenyl-2-picrylhydrazyl radical (DPPH ·) and hydroxyl radical ( ·OH), and anti-lipid peroxidation activity. Moreover, cluster analysis was performed. The results indicated that 13 apple cultivars revealed significant difference in chemical composition and antioxidant activity. Starkrimson, Rattan No. 1 and Yanguang had the highest antioxidant activity, whereas Qinguan, Pink Lady and Red Fuji had the lowest antioxidant activity. A significant correlation between antioxidant activity and total phenolic content was observed. Furthermore, cluster analysis revealed the highest content of L-ascorbic acid in U.S. Pat and Pacific Rose, the highest content of soluble sugar in Jonagold, Pacific Rose, Pink Lady, Qinguan and Red Fuji, the richest titrable acid in Pink Lady and the highest sugar/acid ratio in Qinguan and Red Fuji, respectively. Meanwhile, the most abundant phenols were observed in Rattan No. 1, Yanguang, Starkrimson and Jonagold.

Key words: apple, chemical composition, total phenolic content, antioxidant activity

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