期刊论文

Chen, Jiwang

英文

Food Chemistry

0308-8146

2013

141

4

3329-3334

10.1016/j.foodchem.2013.06.048

We thank Mr. Cai G.X. from College of Food Science and Engineering of Wuhan Polytechnic University for repeating the experiment of ACE inhibitory activity. Also, authors would like to express our sincere gratitude to Dr. Qixin Zhong, in the department of Food Science and Technology at the University of Tennessee Knoxville, USA, and Dr. Douglas G Hayes, in the department of biosystems engineering and soil science at the University of Tennessee Knoxville, USA, for their guidance and correction. This work was kindly supported by the National High Science and Technology (863) Key Program (2010AA023003), 111 Project-B07029, PCSIRT0627, the earmarked fund for Modern Agro-industry Technology Research System (NYCYTX-49) and Young and Middle-aged Talent Project in Hubei Province (Q20091808).

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The linearity, precision and repeatability of visible spectrophotometric (VSP) and high-performance liquid chromatography (HPLC) methods for analysis of inhibitory activity of angiotensin I-converting enzyme (ACE) were compared by using several inhibitors and Hip-His-Leu (HHL) as substrates. IC50 values (concentration at which ACE activity is inhibited by 50%) of 0.00206 ± 0.00005 μg/mL for captopril, 192 ± 4.53 μg/mL for soybean peptides, and 153 ± 4.29 μg/mL for grass carp peptides determined by the VSP method, and these values were 1.0...