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  • 标题:ACE- inhibitory and radical scavenging activities of bioactive peptides obtained from camel milk casein hydrolysis with proteinase K
  • 本地全文:下载
  • 作者:Mahmood Rahimi ; Seyed Mahmood Ghaffari ; Maryam Salami
  • 期刊名称:Dairy Science & Technology
  • 印刷版ISSN:1958-5586
  • 电子版ISSN:1958-5594
  • 出版年度:2016
  • 卷号:96
  • 期号:4
  • 页码:489-499
  • DOI:10.1007/s13594-016-0283-4
  • 语种:English
  • 出版社:EDP Sciences
  • 摘要:

    The aim of this study was to evaluate the effects of enzymatic hydrolysis of camel whole casein on their antioxidant and angiotensin-converting enzyme (ACE)-inhibitory properties. Whole camel casein was hydrolyzed by proteinase K (PK), and the hydrolysates were fractionized by ultrafiltration membranes into three fractions. Semi-preparative reversed-phase high-performance liquid chromatography (RP-HPLC) was used to differentiate the mixture of peptides in the 3 kDa permeate fractions. A fraction (F4) with potentials of ACE-inhibitory activity (IC50 = 73 μg.mL−1) and radical scavenging activity (IC50 = 6.8 μg.mL−1) was selected for further purification and fractionation. The fraction F4C obtained from a second step purification of F4 showed strong ACE-inhibitory activity (IC50 = 36 μg.mL−1) as well as radical scavenging activity (IC50 = 3.3 μg.mL−1). The results of this study suggest that whole camel casein can be considered as a promising source for the production of peptides with potential of ACE-inhibitory and antioxidant activities.

  • 关键词:Camel milk ;Casein ;Peptide ;Protease ;Angiotensin-converting enzyme
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