CE inhibitory activity was studied for different hydrolysates obtained from protein concentrates of chickpea (kabuli and desi) and yellow pea (Golden) using in vitro gastrointestinal simulation, alcalase/flavourzyme, and papain. Protein/peptide profiles studied by SOS-PAGE and SE-HPLC, showed a rich composition of the hydrolysates in small peptides having MWs under 4 kDa. Papain hydrolysed yellow pea proteins showed the highest ACE inhibitory activity. In addition, chickpea desi proteins hydrolysed by in vitro gastrointestinal simulation showed higher ACE inhibition (IC50 of 140 +/- 1 mu g/ml) compared to its digests obtained by alcalase/flavourzyme (IC50 of 228 +/- 3 mu g/m1) or papain (IC50 of 180 +/- 1 mu/ml) ;and to chickpea kabuli hydrolysed by gastrointestinal simulation (IC50 of 229 +/- 1 mu/ml). The results demonstrate that enzymatic hydrolysates of chickpea and pea proteins contain bioactive ACE inhibitory peptides; furthermore, the type of enzyme used for hydrolysis affects the ACE inhibitory activity. Crown Copyright (C) 2010 Published by Elsevier Ltd. All rights reserved.
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Chinese Univ Hong Kong, Food & Nutr Sci Programme, Dept Biochem, Shatin, Hong Kong, Peoples R ChinaChinese Univ Hong Kong, Food & Nutr Sci Programme, Dept Biochem, Shatin, Hong Kong, Peoples R China
Chen, Zhen-Yu
;
Peng, Cheng
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Chinese Univ Hong Kong, Food & Nutr Sci Programme, Dept Biochem, Shatin, Hong Kong, Peoples R ChinaChinese Univ Hong Kong, Food & Nutr Sci Programme, Dept Biochem, Shatin, Hong Kong, Peoples R China
Peng, Cheng
;
Jiao, Rui
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Chinese Univ Hong Kong, Food & Nutr Sci Programme, Dept Biochem, Shatin, Hong Kong, Peoples R ChinaChinese Univ Hong Kong, Food & Nutr Sci Programme, Dept Biochem, Shatin, Hong Kong, Peoples R China
Jiao, Rui
;
Wong, Yin Mei
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Chinese Univ Hong Kong, Food & Nutr Sci Programme, Dept Biochem, Shatin, Hong Kong, Peoples R ChinaChinese Univ Hong Kong, Food & Nutr Sci Programme, Dept Biochem, Shatin, Hong Kong, Peoples R China
Wong, Yin Mei
;
Yang, Nan
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Chinese Univ Hong Kong, Food & Nutr Sci Programme, Dept Biochem, Shatin, Hong Kong, Peoples R ChinaChinese Univ Hong Kong, Food & Nutr Sci Programme, Dept Biochem, Shatin, Hong Kong, Peoples R China
Yang, Nan
;
Huang, Yu
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Chinese Univ Hong Kong, Dept Physiol, Shatin, Hong Kong, Peoples R ChinaChinese Univ Hong Kong, Food & Nutr Sci Programme, Dept Biochem, Shatin, Hong Kong, Peoples R China
机构:
Chinese Univ Hong Kong, Food & Nutr Sci Programme, Dept Biochem, Shatin, Hong Kong, Peoples R ChinaChinese Univ Hong Kong, Food & Nutr Sci Programme, Dept Biochem, Shatin, Hong Kong, Peoples R China
Chen, Zhen-Yu
;
Peng, Cheng
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Chinese Univ Hong Kong, Food & Nutr Sci Programme, Dept Biochem, Shatin, Hong Kong, Peoples R ChinaChinese Univ Hong Kong, Food & Nutr Sci Programme, Dept Biochem, Shatin, Hong Kong, Peoples R China
Peng, Cheng
;
Jiao, Rui
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Chinese Univ Hong Kong, Food & Nutr Sci Programme, Dept Biochem, Shatin, Hong Kong, Peoples R ChinaChinese Univ Hong Kong, Food & Nutr Sci Programme, Dept Biochem, Shatin, Hong Kong, Peoples R China
Jiao, Rui
;
Wong, Yin Mei
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Chinese Univ Hong Kong, Food & Nutr Sci Programme, Dept Biochem, Shatin, Hong Kong, Peoples R ChinaChinese Univ Hong Kong, Food & Nutr Sci Programme, Dept Biochem, Shatin, Hong Kong, Peoples R China
Wong, Yin Mei
;
Yang, Nan
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Chinese Univ Hong Kong, Food & Nutr Sci Programme, Dept Biochem, Shatin, Hong Kong, Peoples R ChinaChinese Univ Hong Kong, Food & Nutr Sci Programme, Dept Biochem, Shatin, Hong Kong, Peoples R China
Yang, Nan
;
Huang, Yu
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Chinese Univ Hong Kong, Dept Physiol, Shatin, Hong Kong, Peoples R ChinaChinese Univ Hong Kong, Food & Nutr Sci Programme, Dept Biochem, Shatin, Hong Kong, Peoples R China