文献类型： 外文期刊
作者： Chen, Yonghao 1 ; Li, Jun 2 ; Dong, Ningguang 1 ; Zhang, Yunqi 1 ; Lu, Xiaodan 1 ; Hao, Yanbin 1 ; Qi, Jianxun 1 ;
作者机构： 1.Beijing Acad Forestry & Pomol Sci, Jia 12 Xiangshan Ruiwangfen, Beijing 100093, Peoples R China
2.Beijing Inst Landscape Architecture, Beijing Key Lab Greening Plants Breeding, Jia 7 Huajiadi, Beijing 100102, Peoples R China
关键词： Walnut peptide; ACE inhibitory activity; Purification; Identification; Amino acid sequence
期刊名称：EUROPEAN FOOD RESEARCH AND TECHNOLOGY （ 影响因子：2.998； 五年影响因子：3.005 ）
ISSN： 1438-2377
年卷期： 2020 年 246 卷 10 期
页码：
收录情况： SCI
摘要： The peptide obtained from walnut protein enzymatic hydrolysate had high ACE inhibitory activity. Through centrifugation, ultrafiltration, gel chromatography and high performance liquid chromatography (HPLC), the walnut oligo-peptide, which was denoted as P4-c with high ACE inhibitory activity was obtained. Three novel ACE inhibitory peptides, GVVPHN, EHSLDPLK and KTLLNFGPN, were identified from P4-c by high-resolution ion mobility mass spectrometry (IM-MS). The three novel ACE inhibitory peptides possessed good ACE inhibitory activity and the fraction GVVPHN had high ACE inhibitory activity with 27.3 mu mol L(-1)of IC50. The molar percentage of hydrophobic amino acids in the peptide GVVPHN was 50% while the hydrophobic amino acid contents of EHSLDPLK and KTLLNFGPN were 37.5% and 44.4%, respectively, which indicates ACE inhibitory activities were hydrophobicity of amino acid-dependent.
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