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Chen L, Shangguan W, Bao C, Shu G, Chen H. Collaborative optimization and molecular docking exploration of novel ACE-inhibitory peptides from bovine milk by complex proteases hydrolysis. ARTIFICIAL CELLS NANOMEDICINE AND BIOTECHNOLOGY 2019; 48:180-187. [DOI: 10.1080/21691401.2019.1699824] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Li Chen
- College of Food Engineering and Nutritional Science, Shaanxi Normal University, Xi’an, PR China
| | - Wenfei Shangguan
- School of Food and Biological Engineering, Shaanxi University of Science and Technology, Xi’an, PR China
| | - Chunju Bao
- School of Food and Biological Engineering, Shaanxi University of Science and Technology, Xi’an, PR China
| | - Guowei Shu
- School of Food and Biological Engineering, Shaanxi University of Science and Technology, Xi’an, PR China
| | - He Chen
- School of Food and Biological Engineering, Shaanxi University of Science and Technology, Xi’an, PR China
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Tu M, Liu H, Zhang R, Chen H, Mao F, Cheng S, Lu W, Du M. Analysis and Evaluation of the Inhibitory Mechanism of a Novel Angiotensin-I-Converting Enzyme Inhibitory Peptide Derived from Casein Hydrolysate. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2018; 66:4139-4144. [PMID: 29637780 DOI: 10.1021/acs.jafc.8b00732] [Citation(s) in RCA: 49] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Casein hydrolysates exert various biological activities, and the responsible functional peptides are being identified from them continuously. In this study, the tryptic casein hydrolysate was fractionated by an ultrafiltration membrane (3 kDa), and the peptides were identified by capillary electrophoresis-quadrupole-time-of-flight-tandem mass spectrometry. Meanwhile, in silico methods were used to analyze the toxicity, solubility, stability, and affinity between the peptides and angiotensin-I-converting enzyme (ACE). Finally, a new angiotensin-I-converting enzyme inhibitory (ACEI) peptide, EKVNELSK, derived from αs1-casein (fragment 35-42) was screened. The half maximal inhibitory concentration value of the peptide is 5.998 mM, which was determined by a high-performance liquid chromatography method. The Lineweaver-Burk plot indicated that this peptide is a mixed-type inhibitor against ACE. Moreover, Discovery Studio 2017 R2 software was adopted to perform molecular docking to propose the potential mechanisms underlying the ACEI activity of the peptide. These results indicated that EKVNELSK is a new ACEI peptide identified from casein hydrolysate.
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Affiliation(s)
- Maolin Tu
- School of Food Science and Technology, National Engineering Research Center of Seafood , Dalian Polytechnic University , Dalian , Liaoning 116034 , People's Republic of China
- Department of Food Science and Engineering, School of Chemistry and Chemical Engineering , Harbin Institute of Technology , Harbin , Heilongjiang 150001 , People's Republic of China
| | - Hanxiong Liu
- School of Food Science and Technology, National Engineering Research Center of Seafood , Dalian Polytechnic University , Dalian , Liaoning 116034 , People's Republic of China
| | - Ruyi Zhang
- School of Food Science and Technology, National Engineering Research Center of Seafood , Dalian Polytechnic University , Dalian , Liaoning 116034 , People's Republic of China
| | - Hui Chen
- School of Food Science and Technology, National Engineering Research Center of Seafood , Dalian Polytechnic University , Dalian , Liaoning 116034 , People's Republic of China
| | - Fengjiao Mao
- School of Food Science and Technology, National Engineering Research Center of Seafood , Dalian Polytechnic University , Dalian , Liaoning 116034 , People's Republic of China
| | - Shuzhen Cheng
- School of Food Science and Technology, National Engineering Research Center of Seafood , Dalian Polytechnic University , Dalian , Liaoning 116034 , People's Republic of China
- College of Food Science and Nutritional Engineering , China Agricultural University , Beijing 100083 , People's Republic of China
| | - Weihong Lu
- Department of Food Science and Engineering, School of Chemistry and Chemical Engineering , Harbin Institute of Technology , Harbin , Heilongjiang 150001 , People's Republic of China
| | - Ming Du
- School of Food Science and Technology, National Engineering Research Center of Seafood , Dalian Polytechnic University , Dalian , Liaoning 116034 , People's Republic of China
- Department of Food Science and Engineering, School of Chemistry and Chemical Engineering , Harbin Institute of Technology , Harbin , Heilongjiang 150001 , People's Republic of China
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