食品科学 ›› 2010, Vol. 31 ›› Issue (7): 94-97.doi: 10.7506/spkx1002-6300-201007021

• 基础研究 • 上一篇    下一篇

酸肉肽抗氧化活性的研究

叶 春1,马顺强1,张 倩2,*,刘世会1   

  1. 1.贵州大学生命科学学院 2.杭州万向职业技术学院
  • 收稿日期:2009-08-27 出版日期:2010-04-01 发布日期:2010-12-29
  • 通讯作者: 叶 春 E-mail:Ls.cxie@gzu.edu.cn
  • 基金资助:

    贵州省教育厅自然科学基金项目(黔教高发(2008)364 号)

Antioxidant Activity of Sour Meat Peptide

YE Chun1,MA Shun-qiang1,ZHANG Qian2,*,LIU Shi-hui1   

  1. 1.College of Life Science, Guizhou University, Guiyang 550025, China;
    2.Hangzhou Wanxiang Polytechnic College, Hangzhou 310023, China
  • Received:2009-08-27 Online:2010-04-01 Published:2010-12-29
  • Contact: YE Chun E-mail:Ls.cxie@gzu.edu.cn

摘要:

通过测定酸肉肽对DPPH 自由基、羟自由基、亚硝酸盐的清除能力及其还原能力,研究其抗氧化活性。结果:酸肉肽对DPPH 自由基有良好的清除能力,IC50 值为247.96μg/mL,是BHT 的4.97 倍;酸肉肽具有显著的清除羟自由基能力,IC50 值为33.60μg/mL,是BHT 的1.52 倍;酸肉肽的还原能力较强,约为BHT 的0.25 倍;酸肉肽对亚硝酸盐具有一定的清除作用。实验表明酸肉肽具有明显的抗氧化效果。

关键词: 酸肉肽, DPPH 自由基, 羟自由基, 还原力, 亚硝酸盐

Abstract:

Antioxidant activity of sour meat peptide was studied by measuring its scavenging capacity against 2,2-Diphenyl- 1-picrylhydrazyl (DPPH) free radicals, hydroxyl free radicals and nitrite, and its reducing power. Results indicated that sour meat peptide had better scavenging capacity against DPPH free radicals with the IC50 value of 247.96μg/mL, which was 4.97 times higher than that of BHT. In addition, it possessed remarkable scavenging capacity against hydroxyl free radicals with the IC50 value of 33.60μg/mL, which was 1.52 times higher than that of BHT. Moreover, it possessed strong reducing power, which was approximately one quarter of that of BHT. Furthermore, it also exhibited strong scavenging capacity against nitrite. Therefore, sour meat peptide has an obvious antioxidant activity.

Key words: sour meat peptide, DPPH free radical, hydroxyl free radical, reducing power, nitrite

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