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Liu G, Guo B, Luo M, Sun S, Lin Q, Kan Q, He Z, Miao J, Du H, Xiao H, Cao Y. A comprehensive review on preparation, structure-activities relationship, and calcium bioavailability of casein phosphopeptides. Crit Rev Food Sci Nutr 2022; 64:996-1014. [PMID: 36052610 DOI: 10.1080/10408398.2022.2111546] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
Calcium is one of the important elements for human health. Calcium deficiencies can lead to numerous diseases. Calcium chelating peptides have shown potential application in the management of calcium deficiencies. Casein phosphopeptides (CPP) are phosphoseryl-containing fragments of casein by enzymatic hydrolysis or fermentation during manufacture of milk products as well as during intestinal digestion. An increasing number of CPP with the ability to facilitate and enhance the bioavailability of calcium are being discovered and identified. In this review, 249 reported CPP derived from four types of bovine casein (αs1, αs2, β and κ) were collected, and the amino acid sequence and phosphoserine group information were sorted out. This review outlines the current enzyme hydrolysis, detection methods, purification, structure-activity relationship and mechanism of intestinal calcium absorption in vitro and in vivo as well as application of CPP.
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Affiliation(s)
- Guo Liu
- Guangdong Provincial Key Laboratory of Nutraceuticals and Functional Foods, College of Food Science, South China Agricultural University, Guangzhou, China
- College of Horticulture, South China Agricultural University, Guangzhou, Guangdong, China
| | - Baoyan Guo
- Guangdong Provincial Key Laboratory of Nutraceuticals and Functional Foods, College of Food Science, South China Agricultural University, Guangzhou, China
- College of Materials and Energy, South China Agricultural University, Guangzhou, China
| | - Minna Luo
- Guangdong Provincial Key Laboratory of Nutraceuticals and Functional Foods, College of Food Science, South China Agricultural University, Guangzhou, China
- Department of Food Science, University of Massachusetts, Amherst, MA, USA
| | - Shengwei Sun
- Guangdong Provincial Key Laboratory of Nutraceuticals and Functional Foods, College of Food Science, South China Agricultural University, Guangzhou, China
| | - Qianru Lin
- Guangdong Provincial Key Laboratory of Nutraceuticals and Functional Foods, College of Food Science, South China Agricultural University, Guangzhou, China
| | - Qixin Kan
- Guangdong Provincial Key Laboratory of Nutraceuticals and Functional Foods, College of Food Science, South China Agricultural University, Guangzhou, China
| | - Zeqi He
- Guangdong Provincial Key Laboratory of Nutraceuticals and Functional Foods, College of Food Science, South China Agricultural University, Guangzhou, China
| | - Jianyin Miao
- Guangdong Provincial Key Laboratory of Nutraceuticals and Functional Foods, College of Food Science, South China Agricultural University, Guangzhou, China
| | - Hengjun Du
- Department of Food Science, University of Massachusetts, Amherst, MA, USA
| | - Hang Xiao
- Department of Food Science, University of Massachusetts, Amherst, MA, USA
| | - Yong Cao
- Guangdong Provincial Key Laboratory of Nutraceuticals and Functional Foods, College of Food Science, South China Agricultural University, Guangzhou, China
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Chang GRL, Tu MY, Chen YH, Chang KY, Chen CF, Lai JC, Tung YT, Chen HL, Fan HC, Chen CM. KFP-1, a Novel Calcium-Binding Peptide Isolated from Kefir, Promotes Calcium Influx Through TRPV6 Channels. Mol Nutr Food Res 2021; 65:e2100182. [PMID: 34477300 DOI: 10.1002/mnfr.202100182] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2021] [Revised: 07/25/2021] [Indexed: 01/16/2023]
Abstract
INTRODUCTION Kefir is an acidic and alcoholic fermented milk product with multiple health-promoting benefits. A previous study demonstrated that kefir enhanced calcium absorption in intestinal Caco-2 cells. In this study, kefir-fermented peptide-1 (KFP-1) is isolated from the kefir peptide fraction, and its function as a calcium-binding peptide is characterized. METHODS AND RESULTS KFP-1 was identified as a 17-residue peptide with a sequence identical to that of κ-casein (residues 138-154) in milk protein. KFP-1 is demonstrated to promote calcium influx in Caco-2 and IEC-6 small intestinal cells in a concentration-dependent manner. TRPV6, but not L-type voltage-gated calcium channels, is associated with the calcium influx induced by KFP-1. An in vitro calcium binding assay indicates that the full-length KFP-1 peptide has a higher calcium-binding capacity than the two truncated KFP-1 peptides, KFP-1∆C5 and KFP-1C5. Alexa Fluor 594 labeling shows that KFP-1 is taken up by Caco-2 cells and interacts with calcium ions and TRPV6 protein. Moreover, KFP-1 is found moderately resistant to pepsin and pancreatin digestions and enhanced calcium uptake by intestinal enterocytes in vivo. CONCLUSION These data suggest that KFP-1, a novel calcium-binding peptide, binds extracellular calcium ions and enters Caco-2 and IEC-6 cells, and promotes calcium uptake through TRPV6 calcium channels. The present study is of great importance for developing kefir-derived metal ion-binding peptides as functional nutraceutical additives.
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Affiliation(s)
- Gary Ro-Lin Chang
- Department of Pediatrics, Department of Medical Research, Tungs' Taichung Metroharbor Hospital, Taichung, 435, Taiwan.,Department of Life Sciences, and Ph.D. Program in Translational Medicine, National Chung Hsing University, Taichung, 402, Taiwan
| | - Min-Yu Tu
- Aviation Physiology Research Laboratory, Kaohsiung Armed Forces General Hospital Gangshan Branch, Kaohsiung, 820, Taiwan.,Department of Health Business Administration, Meiho University, Pingtung, 912, Taiwan.,Institute of Biomedical Science and Technology, National Sun Yat-Sen University, Kaohsiung, 804, Taiwan
| | - Yu-Hsuan Chen
- Department of Life Sciences, and Ph.D. Program in Translational Medicine, National Chung Hsing University, Taichung, 402, Taiwan.,Ph.D. Program in Tissue Engineering and Regenerative Medicine, National Health Research Institutes and National Chung Hsing University, Taichung, 402, Taiwan
| | - Ku-Yi Chang
- Department of Orthopedic Surgery, Jen-Ai Hospital, Dali Branch, Taichung, 402, Taiwan
| | - Chien-Fu Chen
- Department of Life Sciences, and Ph.D. Program in Translational Medicine, National Chung Hsing University, Taichung, 402, Taiwan.,Department of Orthopedic Surgery, Taichung Armed Forces General Hospital, Taichung, 411, Taiwan
| | - Jen-Chieh Lai
- Department of Life Sciences, and Ph.D. Program in Translational Medicine, National Chung Hsing University, Taichung, 402, Taiwan.,Department of Orthopedic Surgery, Taichung Armed Forces General Hospital, Taichung, 411, Taiwan
| | - Yu-Tang Tung
- Department of Life Sciences, and Ph.D. Program in Translational Medicine, National Chung Hsing University, Taichung, 402, Taiwan.,Institute of Biotechnology, National Chung Hsing University, Taichung, 402, Taiwan
| | - Hsiao-Ling Chen
- Department of Biomedical Sciences, and Department of Bioresources, Da-Yeh University, Changhwa, 515, Taiwan
| | - Hueng-Chuen Fan
- Department of Pediatrics, Department of Medical Research, Tungs' Taichung Metroharbor Hospital, Taichung, 435, Taiwan.,Department of Rehabilitation, Jen-Teh Junior College of Medicine, Miaoli, 356, Taiwan
| | - Chuan-Mu Chen
- Department of Life Sciences, and Ph.D. Program in Translational Medicine, National Chung Hsing University, Taichung, 402, Taiwan.,The iEGG and Animal Biotechnology Center, and Rong Hsing Research Center for Translational Medicine, National Chung Hsing University, Taichung, 402, Taiwan
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