首页    期刊浏览 2022年05月22日 星期日
登录注册

文章基本信息

  • 标题:The Role of an Acidic Peptide in Controlling the Oxidation Process of Walnut Oil
  • 本地全文:下载
  • 作者:Yu Jie ; Hongfei Zhao ; Bolin Zhang
  • 期刊名称:Foods
  • 电子版ISSN:2304-8158
  • 出版年度:2019
  • 卷号:8
  • 期号:10
  • 页码:499-510
  • DOI:10.3390/foods8100499
  • 出版社:MDPI Publishing
  • 摘要:Here, the mechanism of action of an antioxidant peptide rich in acidic amino acid residues in controlling lipid oxidation is discussed. Firstly, in the presence of this peptide, the fluorescence intensity of lipid peroxide in samples of walnut oil was very low, indicating that the peptide prevented the formation of lipid peroxides. Secondly, the production of lipid-derived radicals of oil was reduced by 23% following addition of the anti-oxidative peptide. Thirdly, Raman shifts of the lipid with the anti-oxidative peptide showed that acidic amino acid residues of the peptide were involved in delaying lipid oxidation. Finally, seven peptide inhibitors were synthesized with variations to the amino acid sequence of the original peptide, and Glu–Asp was proven to enhance the peptide’s superoxide anion radical scavenging activity and decrease the formation of linoleic acid peroxides. Our findings emphasize the potential value of acidic amino acid residues in protecting unsaturated fatty acids from oxidation.
  • 关键词:lipid oxidation; antioxidant peptide; acidic amino acid residues lipid oxidation ; antioxidant peptide ; acidic amino acid residues
国家哲学社会科学文献中心版权所有