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Tenenbaum M, Deracinois B, Dugardin C, Auger J, Baniel A, Boulier A, Flahaut C, Ravallec R, Cudennec B. Digested casein phosphopeptides impact intestinal calcium transport in vitro. Food Funct 2024; 15:8104-8115. [PMID: 39007353 DOI: 10.1039/d4fo01637h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/16/2024]
Abstract
Calcium is the most abundant mineral in the human body and is involved in critical physiological and cellular processes. It is essential for the development, maintenance, and integrity of bone tissue throughout life. Identifying new natural food-grade chelating agents to improve calcium uptake is of increasing interest. Casein phosphopeptides (CPPs), highly phosphorylated peptides obtained after enzymatic hydrolysis of caseins, represent promising calcium-chelating candidates. The aim of this study was to investigate, using cell culture models, the ability of a digested milk matrix enriched in CPPs to regulate calcium transport through the intestinal barrier and elucidate the involved mechanisms. To this end, a CPP-preparation underwent in vitro static digestion and was subsequently incubated with an intestinal barrier model to monitor calcium uptake and transport. Our results demonstrated that the digested CPP preparation enhanced the trans-epithelial calcium transport via paracellular pathways and that CPPs, identified by peptidomics, crossed the intestinal barrier in the same time.
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Affiliation(s)
- Mathie Tenenbaum
- UMR Transfronalière BioEcoAgro-INRae 1158, Univ. Lille, INRAE, Univ. Liège, UPJV, JUNIA, Univ. Artois, Univ. Littoral Côte d'Opale, F-59000 Lille, France.
| | - Barbara Deracinois
- UMR Transfronalière BioEcoAgro-INRae 1158, Univ. Lille, INRAE, Univ. Liège, UPJV, JUNIA, Univ. Artois, Univ. Littoral Côte d'Opale, F-59000 Lille, France.
| | - Camille Dugardin
- UMR Transfronalière BioEcoAgro-INRae 1158, Univ. Lille, INRAE, Univ. Liège, UPJV, JUNIA, Univ. Artois, Univ. Littoral Côte d'Opale, F-59000 Lille, France.
| | - Julie Auger
- Ingredia S.A., 51 Av. Lobbedez - CS 60946, 62033 Arras Cedex, France
| | - Alain Baniel
- Ingredia S.A., 51 Av. Lobbedez - CS 60946, 62033 Arras Cedex, France
| | - Audrey Boulier
- Ingredia S.A., 51 Av. Lobbedez - CS 60946, 62033 Arras Cedex, France
| | - Christophe Flahaut
- UMR Transfronalière BioEcoAgro-INRae 1158, Univ. Lille, INRAE, Univ. Liège, UPJV, JUNIA, Univ. Artois, Univ. Littoral Côte d'Opale, F-59000 Lille, France.
| | - Rozenn Ravallec
- UMR Transfronalière BioEcoAgro-INRae 1158, Univ. Lille, INRAE, Univ. Liège, UPJV, JUNIA, Univ. Artois, Univ. Littoral Côte d'Opale, F-59000 Lille, France.
| | - Benoit Cudennec
- UMR Transfronalière BioEcoAgro-INRae 1158, Univ. Lille, INRAE, Univ. Liège, UPJV, JUNIA, Univ. Artois, Univ. Littoral Côte d'Opale, F-59000 Lille, France.
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2
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Yang J, Shi J, Zhou Y, Zou Y, Xu W, Xia X, Wang D. Preparation, Characterization and Stability of Calcium-Binding Peptides Derived from Chicken Blood. Foods 2024; 13:2368. [PMID: 39123559 PMCID: PMC11311274 DOI: 10.3390/foods13152368] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2024] [Revised: 07/08/2024] [Accepted: 07/25/2024] [Indexed: 08/12/2024] Open
Abstract
Calcium-binding peptides have gained significant attention due to their potential applications in various fields. In this study, we aimed to prepare, characterize, and evaluate the stability of calcium-binding peptides derived from chicken blood. Chicken hemoglobin peptides (CPs) were obtained by protease hydrolysis and were applied to prepare chicken hemoglobin peptide-calcium chelate (CP-Ca). The preparation conditions were optimized, and the characteristics and stability of CP-Ca were analyzed. The optimal chelating conditions were determined by single-factor and response surface tests, and the maximum calcium ion chelating rate was 77.54%. Amino acid analysis indicated that glutamic acid and aspartic acid motifs played an important role in the chelation of the calcium ions and CP. According to the characterization analysis, CP-Ca was a different substance compared with CP; calcium ions chelated CPs via the sites of carbonyl oxygen, carboxyl oxygen, and amino nitrogen groups; and after the chelation, the structure changed from a smooth homogeneous plate to compact granular. The stability analysis showed that CP-Ca was stable at different temperatures, pH, and gastrointestinal conditions. The study indicates that chicken blood is a promising source of peptide-calcium chelates, providing a theoretical basis for application in functional foods and improving the utilization value of chicken blood.
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Affiliation(s)
- Jing Yang
- Jiangsu Key Laboratory for Food Quality and Safety-State Key Laboratory Cultivation Base, Ministry of Science and Technology, Nanjing 210014, China;
- Institute of Agri-Products Processing, Jiangsu Academy of Agricultural Sciences, Nanjing 210014, China; (J.S.); (Y.Z.); (W.X.)
| | - Jing Shi
- Institute of Agri-Products Processing, Jiangsu Academy of Agricultural Sciences, Nanjing 210014, China; (J.S.); (Y.Z.); (W.X.)
| | - Ying Zhou
- College of Food Science, Xizang University of Agriculture and Animal Husbandry, Nyingchi 860000, China;
| | - Ye Zou
- Institute of Agri-Products Processing, Jiangsu Academy of Agricultural Sciences, Nanjing 210014, China; (J.S.); (Y.Z.); (W.X.)
| | - Weimin Xu
- Institute of Agri-Products Processing, Jiangsu Academy of Agricultural Sciences, Nanjing 210014, China; (J.S.); (Y.Z.); (W.X.)
| | - Xiudong Xia
- Institute of Agri-Products Processing, Jiangsu Academy of Agricultural Sciences, Nanjing 210014, China; (J.S.); (Y.Z.); (W.X.)
| | - Daoying Wang
- Jiangsu Key Laboratory for Food Quality and Safety-State Key Laboratory Cultivation Base, Ministry of Science and Technology, Nanjing 210014, China;
- Institute of Agri-Products Processing, Jiangsu Academy of Agricultural Sciences, Nanjing 210014, China; (J.S.); (Y.Z.); (W.X.)
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3
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Xu Z, Han S, Cui N, Liu H, Yan X, Chen H, Wu J, Tan Z, Du M, Li T. Identification and characterization of a calcium-binding peptide from salmon bone for the targeted inhibition of α-amylase in digestion. Food Chem X 2024; 22:101352. [PMID: 38601950 PMCID: PMC11004067 DOI: 10.1016/j.fochx.2024.101352] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2024] [Revised: 03/23/2024] [Accepted: 04/02/2024] [Indexed: 04/12/2024] Open
Abstract
α-Amylase, essential for carbohydrate digestion, relies on calcium (Ca) for its structural integrity and enzymatic activity. This study explored the inhibitory effect of salmon bone peptides on α-amylase activity through their interaction with the enzyme's Ca-binding sites. Among the various salmon bone hydrolysates, salmon bone trypsin hydrolysate (SBTH) exhibited the highest α-amylase inhibition. The peptide IEELEEELEAER (PIE), with a sequence of Ile-Glu-Glu-Leu-Glu-Glu-Glu-Glu-Leu-Glu-Ala-Glu-Arg from SBTH, was found to specifically target the Ca-binding sites in α-amylase, interacting with key residues such as Asp206, Trp203, His201, etc. Additionally, cellular experiments using 3 T3-L1 preadipocytes indicated PIE's capability to suppress adipocyte differentiation, and decreases in intracellular triglycerides, total cholesterol, and lipid accumulation. In vivo studies also showed a significant reduction in weight gain in the group treated with PIE(6.61%)compared with the control group (33.65%). These findings suggest PIE is an effective α-amylase inhibitor, showing promise for obesity treatment.
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Affiliation(s)
- Zhe Xu
- College of Life Sciences, Key Laboratory of Biotechnology and Bioresources Utilization, Dalian Minzu University, Ministry of Education, Dalian 116600, China
- Institute of Bast Fiber Crops & Center of Southern Economic Crops, Chinese Academy of Agricultural Sciences, Changsha 410205, China
- Department of Agricultural, Food and Nutritional Science, University of Alberta, Edmonton, Alberta T6G2P5, Canada
| | - Shiying Han
- College of Life Sciences, Key Laboratory of Biotechnology and Bioresources Utilization, Dalian Minzu University, Ministry of Education, Dalian 116600, China
| | - Na Cui
- Department of Food and Chemical Engineering, Liuzhou Institute of Technology, Liuzhou, Guangxi 545616, China
| | - Hanxiong Liu
- School of Food Science and Technology, National Engineering Research Center of Seafood, Collaborative Innovation Center of Seafood Deep Processing, Dalian Polytechnic University, Dalian 116034, China
| | - Xu Yan
- College of Life Sciences, Key Laboratory of Biotechnology and Bioresources Utilization, Dalian Minzu University, Ministry of Education, Dalian 116600, China
| | - Hongrui Chen
- School of Food and Bioengineering, Food Microbiology Key Laboratory of Sichuan Province, Chongqing Key Laboratory of Speciality Food Co-Built by Sichuan and Chongqing, Xihua University, Chengdu, Sichuan 611130, China
| | - Jianping Wu
- Department of Agricultural, Food and Nutritional Science, University of Alberta, Edmonton, Alberta T6G2P5, Canada
| | - Zhijian Tan
- Institute of Bast Fiber Crops & Center of Southern Economic Crops, Chinese Academy of Agricultural Sciences, Changsha 410205, China
| | - Ming Du
- School of Food Science and Technology, National Engineering Research Center of Seafood, Collaborative Innovation Center of Seafood Deep Processing, Dalian Polytechnic University, Dalian 116034, China
| | - Tingting Li
- College of Life Sciences, Key Laboratory of Biotechnology and Bioresources Utilization, Dalian Minzu University, Ministry of Education, Dalian 116600, China
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4
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Ci X, Liu R, Sun Y, Rifky M, Liu R, Jin Y, Zhu Q, Zhang M, Wu T. A novel antioxidant iron-chelating peptide from yak skin: analysis of the chelating mechanism and digestion stability in vitro. JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE 2024. [PMID: 38828699 DOI: 10.1002/jsfa.13621] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/15/2023] [Revised: 03/01/2024] [Accepted: 05/12/2024] [Indexed: 06/05/2024]
Abstract
BACKGROUND The global prevalence of iron deficiency has posed significant public health risks. Animal-derived collagen peptides have been recognized for their potent metal ion-chelating capabilities, which can greatly enhance the bioavailability of iron. Yak skins, typically discarded during production and processing, serve as a valuable resource. Based on yak skin collagen peptide (YSP), we have developed a novel iron-chelating peptide: yak skin collagen iron-chelating peptide (YSP-Fe). RESULTS The maximum level of iron chelation of YSP-Fe achieved was 42.72 ± 0.65 mg g-1. Structural analysis indicated that YSP-Fe was primarily formed from amino, carboxyl and carbonyl groups combined with ferrous ions. Through examination of the amino acid composition, molecular docking and peptide sequence identification, it was determined that Gly, Asp and Arg played crucial roles in the chelation of ferrous ions by YSP. Furthermore, YSP-Fe was more stable in simulated gastrointestinal digestion compared to FeSO4. CONCLUSION YSP-Fe demonstrated dual benefits of iron supplementation and antioxidant effects. These significant findings provide a foundation for the development of novel iron supplements and the effective utilization of yak skin as a valuable resource. © 2024 Society of Chemical Industry.
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Affiliation(s)
- Xiaoman Ci
- State Key Laboratory of Food Nutrition and Safety, Food Biotechnology Engineering Research Center of Ministry of Education, Tianjin University of Science and Technology, Tianjin, China
| | - Ran Liu
- State Key Laboratory of Food Nutrition and Safety, Food Biotechnology Engineering Research Center of Ministry of Education, Tianjin University of Science and Technology, Tianjin, China
| | - Yuting Sun
- State Key Laboratory of Food Nutrition and Safety, Food Biotechnology Engineering Research Center of Ministry of Education, Tianjin University of Science and Technology, Tianjin, China
| | - Mohamed Rifky
- Department of Biosystems Technology, Eastern University, Sri Lanka, Chenkalady, Sri Lanka
| | - Rui Liu
- State Key Laboratory of Food Nutrition and Safety, Food Biotechnology Engineering Research Center of Ministry of Education, Tianjin University of Science and Technology, Tianjin, China
| | - Yan Jin
- State Key Laboratory of Food Nutrition and Safety, Food Biotechnology Engineering Research Center of Ministry of Education, Tianjin University of Science and Technology, Tianjin, China
| | - Qiaomei Zhu
- State Key Laboratory of Food Nutrition and Safety, Food Biotechnology Engineering Research Center of Ministry of Education, Tianjin University of Science and Technology, Tianjin, China
| | - Min Zhang
- China-Russia Agricultural Processing Joint Laboratory, Tianjin Agricultural University, Tianjin, China
| | - Tao Wu
- State Key Laboratory of Food Nutrition and Safety, Food Biotechnology Engineering Research Center of Ministry of Education, Tianjin University of Science and Technology, Tianjin, China
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5
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Xiong Y, Li JR, Peng PZ, Liu B, Zhao LN. Positive effect of peptide-calcium chelates from Grifola frondosa on a mouse model of senile osteoporosis. J Food Sci 2024; 89:3816-3828. [PMID: 38685878 DOI: 10.1111/1750-3841.17073] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2023] [Revised: 03/01/2024] [Accepted: 03/27/2024] [Indexed: 05/02/2024]
Abstract
Calcium supplementation has been shown to be efficacious in mitigating the progression of senile osteoporosis (SOP) and reducing the incidence of osteoporotic fractures resulting from prolonged calcium shortage. In this study, Grifola frondosa (GF) peptides-calcium chelate were synthesized through the interaction between peptide from GF and CaCl2. The chelation reaction was shown to involve the participation of the amino and carboxyl groups in the peptide, as revealed by scanning electron microscope, Fourier-transform infrared, and ultraviolet spectrophotometry. Furthermore, a mouse model of (SOP) induced by d-galactose was established (SCXK-2018-0004). Results demonstrated that low dosage of low-molecular weight GF peptides-calcium chelates (LLgps-Ca) could significantly improve serum index and pathological features of bone tissue and reduce bone injury. Further research suggested that LLgps-Ca could ameliorate SOP by modulating the disrupted metabolic pathway, which includes focal adhesion, extracellular matrix receptor interaction, and PI3K-Akt signaling pathway. Using Western blot, the differentially expressed proteins were further confirmed. Thus, calciumchelating peptides from GF could serve as functional calcium agents to alleviate SOP.
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Affiliation(s)
- Yu Xiong
- National Engineering Research Center of JUNCAO Technology, Fujian Agriculture and Forestry University, Fuzhou, Fujian, China
| | - Jing-Ru Li
- National Engineering Research Center of JUNCAO Technology, Fujian Agriculture and Forestry University, Fuzhou, Fujian, China
| | - Pei-Zhi Peng
- National Engineering Research Center of JUNCAO Technology, Fujian Agriculture and Forestry University, Fuzhou, Fujian, China
| | - Bin Liu
- National Engineering Research Center of JUNCAO Technology, Fujian Agriculture and Forestry University, Fuzhou, Fujian, China
- College of Food Science, Fujian Agriculture and Forestry University, Fuzhou, Fujian, China
| | - Li-Na Zhao
- National Engineering Research Center of JUNCAO Technology, Fujian Agriculture and Forestry University, Fuzhou, Fujian, China
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6
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Cui P, Liang J, Cheng T, Zhang J. Preparation of Calcium-Binding Peptides Derived from Mackerel ( Scomber japonicus) Protein and Structural Characterization and Stability Analysis of Its Calcium Complexes. Foods 2024; 13:1652. [PMID: 38890881 PMCID: PMC11171527 DOI: 10.3390/foods13111652] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2024] [Revised: 05/18/2024] [Accepted: 05/22/2024] [Indexed: 06/20/2024] Open
Abstract
The purpose of this study was to prepare mackerel peptides (MPs) with calcium-binding capacity through an enzyme method and to investigate the potential role they play in improving the bioavailability of calcium in vitro. The calcium-binding capacity, degree of hydrolysis (DH), molecular weight (MW), and charge distribution changes with the enzymolysis time of MPs were measured. The structural characterization of mackerel peptide-calcium (MP-calcium) complexes was performed using spectroscopy and morphology analysis. The results showed that the maximum calcium-binding capacity of the obtained MPs was 120.95 mg/g when alcalase was used for 3 h, with a DH of 15.45%. Moreover, with an increase in hydrolysis time, the MW of the MPs decreased, and the negative charge increased. The carboxyl and amino groups in aspartic (Asp) and glutamate (Glu) of the MPs may act as calcium-binding sites, which are further assembled into compact nanoscale spherical complexes with calcium ions through intermolecular interactions. Furthermore, even under the influence of oxalic acid, MP-calcium complexes maintained a certain solubility. This study provides a basis for developing new calcium supplements and efficiently utilizing the mackerel protein resource.
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Affiliation(s)
- Pengbo Cui
- Zhejiang Key Laboratory of Green, Low-Carbon and Efficient Development of Marine Fishery Resources, College of Food Science and Technology, Zhejiang University of Technology, Hangzhou 310014, China; (J.L.); (T.C.); (J.Z.)
- National Engineering Research Center of Seafood, School of Food Science and Technology, Dalian Polytechnic University, Dalian 116034, China
| | - Jianqin Liang
- Zhejiang Key Laboratory of Green, Low-Carbon and Efficient Development of Marine Fishery Resources, College of Food Science and Technology, Zhejiang University of Technology, Hangzhou 310014, China; (J.L.); (T.C.); (J.Z.)
| | - Tianyu Cheng
- Zhejiang Key Laboratory of Green, Low-Carbon and Efficient Development of Marine Fishery Resources, College of Food Science and Technology, Zhejiang University of Technology, Hangzhou 310014, China; (J.L.); (T.C.); (J.Z.)
| | - Jianyou Zhang
- Zhejiang Key Laboratory of Green, Low-Carbon and Efficient Development of Marine Fishery Resources, College of Food Science and Technology, Zhejiang University of Technology, Hangzhou 310014, China; (J.L.); (T.C.); (J.Z.)
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7
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An J, Wang Y, Li W, Liu W, Zeng X, Liu G, Liu X, Li H. Evaluating the capability of soybean peptides as calcium ion carriers: a study through sequence analysis and molecular dynamics simulations. RSC Adv 2024; 14:15542-15553. [PMID: 38741956 PMCID: PMC11089645 DOI: 10.1039/d4ra02916j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2024] [Accepted: 05/06/2024] [Indexed: 05/16/2024] Open
Abstract
Calcium homeostasis imbalance in the body can lead to a variety of chronic diseases. Supplement efficiency is essential. Peptide calcium chelate, a fourth-generation calcium supplement, offers easy absorption and minimal side effects. Its effectiveness relies on peptide's calcium binding capacity. However, research on amino acid sequences in peptides with high calcium binding capacity (HCBC) is limited, affecting the efficient identification of such peptides. This study used soybean peptides (SP), separated and purified by gel chromatography, to obtain HCBC peptide (137.45 μg mg-1) and normal peptide (≤95.78 μg mg-1). Mass spectrometry identified the sequences of these peptides, and an analysis of the positional distribution of characteristic amino acids followed. Two HCBC peptides with sequences GGDLVS (271.55 μg mg-1) and YEGVIL (272.54 μg mg-1) were discovered. Molecular dynamics showed that when either aspartic acid is located near the N-terminal's middle, or glutamic acid is near the end, or in cases of continuous Asp or Glu, the binding speed, probability, and strength between the peptide and calcium ions are superior compared to those at other locations. The study's goal was to clarify how the positions of characteristic amino acids in peptides affect calcium binding, aiding in developing peptide calcium chelates as a novel calcium supplement.
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Affiliation(s)
- Jiulong An
- Key Laboratory of Geriatric Nutrition and Health (Beijing Technology and Business University), Ministry of Education Beijing 100048 China
| | - Yumei Wang
- Key Laboratory of Geriatric Nutrition and Health (Beijing Technology and Business University), Ministry of Education Beijing 100048 China
| | - Wenhui Li
- Key Laboratory of Geriatric Nutrition and Health (Beijing Technology and Business University), Ministry of Education Beijing 100048 China
| | - Wanlu Liu
- Key Laboratory of Geriatric Nutrition and Health (Beijing Technology and Business University), Ministry of Education Beijing 100048 China
| | - Xiangquan Zeng
- Key Laboratory of Geriatric Nutrition and Health (Beijing Technology and Business University), Ministry of Education Beijing 100048 China
- Key Laboratory of Green and Low-carbon Processing Technology for Plant-based Food of China National Light Industry Council, Beijing Technology and Business University Beijing 100048 China
| | - Guoqi Liu
- Key Laboratory of Green and Low-carbon Processing Technology for Plant-based Food of China National Light Industry Council, Beijing Technology and Business University Beijing 100048 China
| | - Xinqi Liu
- Key Laboratory of Geriatric Nutrition and Health (Beijing Technology and Business University), Ministry of Education Beijing 100048 China
| | - He Li
- Key Laboratory of Geriatric Nutrition and Health (Beijing Technology and Business University), Ministry of Education Beijing 100048 China
- Key Laboratory of Green and Low-carbon Processing Technology for Plant-based Food of China National Light Industry Council, Beijing Technology and Business University Beijing 100048 China
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8
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Yang W, He Y, Tian Y, Xiong H, Zhang C, Sun Y. Characterization and Mechanism of a Novel Rice Protein Peptide (AHVGMSGEEPE) Calcium Chelate in Enhancing Calcium Absorption in Caco-2 Cells. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2024; 72:8569-8580. [PMID: 38563891 DOI: 10.1021/acs.jafc.3c09916] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/04/2024]
Abstract
Rice protein peptides (RPP) are a potentially valuable source of high-quality calcium chelating properties. However, there is a lack of information regarding the calcium-absorption-promoting effect of RPP and its underlying mechanism. The present study adopted molecular docking methodologies to analyze the 10 most potent peptide segments from RPP. Results revealed that the peptide AHVGMSGEEPE (AHV) displayed optimal calcium binding properties (calcium-chelating capacity 55.69 ± 0.66 mg/g). Quantum chemistry analysis revealed that the AHV peptide effectively binds and forms stable complexes with calcium via the carbonyl oxygen atoms in valine at position 3 and the carbonyl of the C-terminal carboxyl group of glutamate at position 11. The spectral analysis results indicated that AHV may bind to calcium through carboxyl oxygen atoms, resulting in a transition from a smooth surface block-like structure to a dense granular structure. Furthermore, this study demonstrated that the 4 mmol/L AHV-Ca chelate (61.75 ± 13.23 μg/well) significantly increases calcium absorption compared to 1 mM CaCl2 (28.57 ± 8.59 μg/well) in the Caco-2 cell monolayer. In terms of mechanisms, the novel peptide-calcium chelate AHV-Ca derived from RPP exerts a cell-level effect by upregulating the expression of TRPV6 calcium-ion-channel-related genes and proteins (TRPV6 and Calbindin-D9k). This study provides a theoretical basis for developing functional foods with the AHV peptide as ingredients to improve calcium absorption.
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Affiliation(s)
- Wenting Yang
- State Key Laboratory of Food Science and Resources, Nanchang University, Nanchang 330047, Jiangxi, China
| | - Yangzheng He
- State Key Laboratory of Food Science and Resources, Nanchang University, Nanchang 330047, Jiangxi, China
| | - Yue Tian
- State Key Laboratory of Food Science and Resources, Nanchang University, Nanchang 330047, Jiangxi, China
| | - Hua Xiong
- State Key Laboratory of Food Science and Resources, Nanchang University, Nanchang 330047, Jiangxi, China
| | - Chunbo Zhang
- State Key Laboratory of Food Science and Resources, Nanchang University, Nanchang 330047, Jiangxi, China
| | - Yong Sun
- State Key Laboratory of Food Science and Resources, Nanchang University, Nanchang 330047, Jiangxi, China
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9
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Sun L, Liu J, Pei H, Shi M, Chen W, Zong Y, Zhao Y, Li J, Du R, He Z. Structural characterisation of deer sinew peptides as calcium carriers, their promotion of MC3T3-E1 cell proliferation and their effect on bone deposition in mice. Food Funct 2024; 15:2587-2603. [PMID: 38353975 DOI: 10.1039/d3fo04627c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/05/2024]
Abstract
Deer sinew as a by-product has high collagen and nutritional value. This study focuses on its hydrolysate being used as a calcium carrier to develop functional foods. The chelation mechanism was analyzed by SEM, EDS, UV-vis, FTIR, and fluorescence spectroscopy and zeta potential analysis after using peptide-sequenced deer sinew peptides for chelation with calcium ions. The results showed that the chelation of deer sinew peptides with calcium ions occurs mainly at the O and N atoms of carboxyl, amino and amide bonds. In vitro and in vivo studies revealed that deer sinew peptide-calcium chelate (DSPs-Ca) promoted the proliferation of MC3T3-E1 cells without toxic side effects and increased the alkaline phosphatase activity. The DSPs-Ca group improved the bone microstructure induced by low calcium, as well as up-regulated the expression of genes responsible for calcium uptake in the kidneys, as evidenced by serum markers, bone sections, bone parameters, and gene expression analyses in low-calcium-fed mice. From the above, it can be concluded that DSPs-Ca is expected to be a calcium supplement food for promoting bone health.
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Affiliation(s)
- Li Sun
- College of Chinese Medicinal Materials, Jilin Agricultural University, Changchun 130118, China
| | - Jinze Liu
- College of Chinese Medicinal Materials, Jilin Agricultural University, Changchun 130118, China
| | - Hongyan Pei
- College of Chinese Medicinal Materials, Jilin Agricultural University, Changchun 130118, China
| | - Meiling Shi
- College of Chinese Medicinal Materials, Jilin Agricultural University, Changchun 130118, China
| | - Weijia Chen
- College of Chinese Medicinal Materials, Jilin Agricultural University, Changchun 130118, China
| | - Ying Zong
- College of Chinese Medicinal Materials, Jilin Agricultural University, Changchun 130118, China
| | - Yan Zhao
- College of Chinese Medicinal Materials, Jilin Agricultural University, Changchun 130118, China
| | - Jianming Li
- College of Chinese Medicinal Materials, Jilin Agricultural University, Changchun 130118, China
| | - Rui Du
- College of Chinese Medicinal Materials, Jilin Agricultural University, Changchun 130118, China
- Jilin Provincial Engineering Research Centre for Efficient Breeding and Product Development of Sika Deer, Changchun 130118, China.
| | - Zhongmei He
- College of Chinese Medicinal Materials, Jilin Agricultural University, Changchun 130118, China
- Jilin Provincial Engineering Research Centre for Efficient Breeding and Product Development of Sika Deer, Changchun 130118, China.
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10
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Gu H, Liang L, Kang Y, Yu R, Wang J, Fan D. Preparation, characterization, and property evaluation of Hericium erinaceus peptide-calcium chelate. Front Nutr 2024; 10:1337407. [PMID: 38264190 PMCID: PMC10803561 DOI: 10.3389/fnut.2023.1337407] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2023] [Accepted: 12/15/2023] [Indexed: 01/25/2024] Open
Abstract
Recently, owing to the good calcium bioavailability, peptide-calcium chelates made of various foods have been emerging. Hericium erinaceus, an edible fungus, is rich in proteins with a high proportion of calcium-binding amino acids. Thus, mushrooms serve as a good source to prepare peptide-calcium chelates. Herein, the conditions for hydrolyzing Hericium erinaceus peptides (HP) with a good calcium-binding rate (CBR) were investigated, followed by the optimization of HP-calcium chelate (HP-Ca) preparation. Furthermore, the structure of the new chelates was characterized along with the evaluation of gastrointestinal stability and calcium absorption. Papain and a hydrolysis time of 2 h were selected for preparing Hericium erinaceus peptides, and the conditions (pH 8.5, temperature 55°C, time 40 min, and mass ratio of peptide/CaCl2 4:1) were optimal to prepare HP-Ca. Under this condition, the chelates contained 6.79 ± 0.13% of calcium. The morphology and energy disperse spectroscopy (EDS) analysis showed that HP-Ca was loose and porous, with an obvious calcium element signal. The ultraviolet-visible (UV) absorption and Fourier transform infrared spectroscopy (FT-IR) analysis indicated that calcium possibly chelates to HP via interaction with free -COO- from acidic amino acids and C = O from amide. HP-Ca displayed good stability against stimulated gastrointestinal digestion. Moreover, HP-Ca significantly improved the calcium absorption by Caco-2 epithelial cells. Thus, HP-Ca is a promising Ca supplement with high calcium bioavailability.
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Affiliation(s)
- Haofeng Gu
- School of Modern Agriculture and Biotechnology, Ankang University, Ankang, China
| | - Lei Liang
- School of Modern Agriculture and Biotechnology, Ankang University, Ankang, China
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Yu X, Liu X, Zhou D. A critical review of a typical research system for food-derived metal-chelating peptides: Production, characterization, identification, digestion, and absorption. Compr Rev Food Sci Food Saf 2024; 23:e13277. [PMID: 38284607 DOI: 10.1111/1541-4337.13277] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2023] [Revised: 11/17/2023] [Accepted: 11/18/2023] [Indexed: 01/30/2024]
Abstract
In the past decade, food-derived metal-chelating peptides (MCPs) have attracted significant attention from researchers working towards the prevention of metal (viz., iron, zinc, and calcium) deficiency phenomenon by primarily inhibiting the precipitation of metals caused by the gastrointestinal environment and exogenous substances (including phytic and oxalic acids). However, for the improvement of limits of current knowledge foundations and future investigation directions of MCP or their derivatives, several review categories should be improved and emphasized. The species' uniqueness and differences in MCP productions highly contribute to the different values of chelating ability with particular metal ions, whereas comprehensive reviews of chelation characterization determined by various kinds of technique support different horizons for explaining the chelation and offer options for the selection of characterization methods. The reviews of chelation mechanism clearly demonstrate the involvement of potential groups and atoms in chelating metal ions. The discussions of digestive stability and absorption in various kinds of absorption model in vitro and in vivo as well as the theory of involved cellular absorption channels and pathways are systematically reviewed and highlighted compared with previous reports as well. Meanwhile, the chelation mechanism on the molecular docking level, the binding mechanism in amino acid identification level, the utilizations of everted rat gut sac model for absorption, and the involvement of cellular absorption channels and pathway are strongly recommended as novelty in this review. This review makes a novel contribution to the literature by the comprehensive prospects for the research and development of food-derived mineral supplements.
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Affiliation(s)
- Xuening Yu
- SKL of Marine Food Processing & Safety Control, National Engineering Research Center of Seafood, Collaborative Innovation Center of Seafood Deep Processing, Liaoning Province Key Laboratory for Marine Food Science and Technology, School of Food Science and Technology, Dalian Polytechnic University, Dalian, China
| | - Xiaoyang Liu
- SKL of Marine Food Processing & Safety Control, National Engineering Research Center of Seafood, Collaborative Innovation Center of Seafood Deep Processing, Liaoning Province Key Laboratory for Marine Food Science and Technology, School of Food Science and Technology, Dalian Polytechnic University, Dalian, China
| | - Dayong Zhou
- SKL of Marine Food Processing & Safety Control, National Engineering Research Center of Seafood, Collaborative Innovation Center of Seafood Deep Processing, Liaoning Province Key Laboratory for Marine Food Science and Technology, School of Food Science and Technology, Dalian Polytechnic University, Dalian, China
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12
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Liu X, Yu X, Dou S, Yin F, Li D, Zhou D. Characterization of Oyster Protein Hydrolysate-Iron Complexes and their In Vivo Protective Effects against Iron Deficiency-Induced Symptoms in Mice. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2023; 71:16618-16629. [PMID: 37874351 DOI: 10.1021/acs.jafc.3c05182] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/25/2023]
Abstract
Iron is one of the trace mineral elements, and iron deficiency is a common phenomenon that negatively influences human health. Food-derived iron supplements were considered excellent candidates for improving this syndrome. In this work, oyster-protein hydrolysates (OPH) and ferrous chloride successfully formed the OPH-Fe complex (6 mg/mL, 40 °C, 30 min), where the main binding sites involved were the carboxyl and amino groups. The OPH-Fe complex showed no obvious changes in the secondary structure, while the iron changed the morphological appearance and also showed fluorescence quenching, an ultraviolet shift, and an increase in size distribution. The OPH-Fe complex showed better dynamic absorption of iron (64.11 μmol/L) than ferrous sulfate (46.90 μmol/L), and the medium dose had better protective effects against iron-deficiency anemia in vivo. Three representative peptides (DGKGKIPEE, FAGDDAPRA, and VLDSGDGVTH) that were absorbed intact were identified. This experiment provided a theoretical foundation for further study of the digestion and absorption of the OPH-Fe complex.
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Affiliation(s)
- Xiaoyang Liu
- State Key Laboratory of Marine Food Processing & Safety Control, National Engineering Research Center of Seafood, Collaborative Innovation Center of Seafood Deep Processing, Liaoning Province Key Laboratory for Marine Food Science and Technology, School of Food Science and Technology, Dalian Polytechnic University, Dalian 116034, China
| | - Xuening Yu
- State Key Laboratory of Marine Food Processing & Safety Control, National Engineering Research Center of Seafood, Collaborative Innovation Center of Seafood Deep Processing, Liaoning Province Key Laboratory for Marine Food Science and Technology, School of Food Science and Technology, Dalian Polytechnic University, Dalian 116034, China
| | - Shijie Dou
- State Key Laboratory of Marine Food Processing & Safety Control, National Engineering Research Center of Seafood, Collaborative Innovation Center of Seafood Deep Processing, Liaoning Province Key Laboratory for Marine Food Science and Technology, School of Food Science and Technology, Dalian Polytechnic University, Dalian 116034, China
| | - Fawen Yin
- State Key Laboratory of Marine Food Processing & Safety Control, National Engineering Research Center of Seafood, Collaborative Innovation Center of Seafood Deep Processing, Liaoning Province Key Laboratory for Marine Food Science and Technology, School of Food Science and Technology, Dalian Polytechnic University, Dalian 116034, China
| | - Deyang Li
- State Key Laboratory of Marine Food Processing & Safety Control, National Engineering Research Center of Seafood, Collaborative Innovation Center of Seafood Deep Processing, Liaoning Province Key Laboratory for Marine Food Science and Technology, School of Food Science and Technology, Dalian Polytechnic University, Dalian 116034, China
| | - Dayong Zhou
- State Key Laboratory of Marine Food Processing & Safety Control, National Engineering Research Center of Seafood, Collaborative Innovation Center of Seafood Deep Processing, Liaoning Province Key Laboratory for Marine Food Science and Technology, School of Food Science and Technology, Dalian Polytechnic University, Dalian 116034, China
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13
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Ge MX, Chen RP, Zhang L, Wang YM, Chi CF, Wang B. Novel Ca-Chelating Peptides from Protein Hydrolysate of Antarctic Krill ( Euphausia superba): Preparation, Characterization, and Calcium Absorption Efficiency in Caco-2 Cell Monolayer Model. Mar Drugs 2023; 21:579. [PMID: 37999403 PMCID: PMC10672039 DOI: 10.3390/md21110579] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2023] [Revised: 10/31/2023] [Accepted: 11/03/2023] [Indexed: 11/25/2023] Open
Abstract
Antarctic krill (Euphausia superba) is the world's largest resource of animal proteins and is thought to be a high-quality resource for future marine healthy foods and functional products. Therefore, Antarctic krill was degreased and separately hydrolyzed using flavourzyme, pepsin, papain, and alcalase. Protein hydrolysate (AKH) of Antarctic krill prepared by trypsin showed the highest Ca-chelating rate under the optimized chelating conditions: a pH of 8.0, reaction time of 50 min, temperature of 50 °C, and material/calcium ratio of 1:15. Subsequently, fourteen Ca-chelating peptides were isolated from APK by ultrafiltration and a series of chromatographic methods and identified as AK, EAR, AEA, VERG, VAS, GPK, SP, GPKG, APRGH, GVPG, LEPGP, LEKGA, FPPGR, and GEPG with molecular weights of 217.27, 374.40, 289.29, 459.50, 275.30, 300.36, 202.21, 357.41, 536.59, 328.37, 511.58, 516.60, 572.66, and 358.35 Da, respectively. Among fourteen Ca-chelating peptides, VERG presented the highest Ca-chelating ability. Ultraviolet spectrum (UV), Fourier Transform Infrared (FTIR), and scanning electron microscope (SEM) analysis indicated that the VERG-Ca chelate had a dense granular structure because the N-H, C=O and -COOH groups of VERG combined with Ca2+. Moreover, the VERG-Ca chelate is stable in gastrointestinal digestion and can significantly improve Ca transport in Caco-2 cell monolayer experiments, but phytate could significantly reduce the absorption of Ca derived from the VERG-Ca chelate. Therefore, Ca-chelating peptides from protein hydrolysate of Antarctic krill possess the potential to serve as a Ca supplement in developing healthy foods.
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Affiliation(s)
- Ming-Xue Ge
- Zhejiang Provincial Engineering Technology Research Center of Marine Biomedical Products, School of Food and Pharmacy, Zhejiang Ocean University, Zhoushan 316022, China; (M.-X.G.); (R.-P.C.)
| | - Ru-Ping Chen
- Zhejiang Provincial Engineering Technology Research Center of Marine Biomedical Products, School of Food and Pharmacy, Zhejiang Ocean University, Zhoushan 316022, China; (M.-X.G.); (R.-P.C.)
| | - Lun Zhang
- National and Provincial Joint Laboratory of Exploration and Utilization of Marine Aquatic Genetic Resources, National Engineering Research Center of Marine Facilities Aquaculture, School of Marine Science and Technology, Zhejiang Ocean University, Zhoushan 316022, China; (L.Z.)
| | - Yu-Mei Wang
- Zhejiang Provincial Engineering Technology Research Center of Marine Biomedical Products, School of Food and Pharmacy, Zhejiang Ocean University, Zhoushan 316022, China; (M.-X.G.); (R.-P.C.)
| | - Chang-Feng Chi
- National and Provincial Joint Laboratory of Exploration and Utilization of Marine Aquatic Genetic Resources, National Engineering Research Center of Marine Facilities Aquaculture, School of Marine Science and Technology, Zhejiang Ocean University, Zhoushan 316022, China; (L.Z.)
| | - Bin Wang
- Zhejiang Provincial Engineering Technology Research Center of Marine Biomedical Products, School of Food and Pharmacy, Zhejiang Ocean University, Zhoushan 316022, China; (M.-X.G.); (R.-P.C.)
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14
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Cui P, Li M, Shao T, Yu M, Zhao W, Song Y, Ding Y, Liu J. Preparation, structure characterization, and stability analysis of peptide-calcium complex derived from porcine nasal cartilage type II collagen. JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE 2023; 103:6884-6894. [PMID: 37286475 DOI: 10.1002/jsfa.12771] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/24/2023] [Revised: 04/29/2023] [Accepted: 06/07/2023] [Indexed: 06/09/2023]
Abstract
BACKGROUND Porcine nasal cartilage type II collagen-derived peptides (PNCPs) may be complexed with calcium to provide a highly bioavailable, low-cost, and effective calcium food supplement. However, the calcium-binding characteristics of PNCPs have not yet been investigated. In the present study, calcium-binding peptides were derived from porcine nasal cartilage type II collagen and the resulting PNCPs-Ca complex was characterized. RESULTS The study reveals that the calcium-binding capacity of PNCPs is closely related to enzymatic hydrolysis conditions. The highest calcium-binding capacity of PNCPs was observed at a hydrolysis time of 4 h, temperature of 40 °C, enzyme dosage of 1%, and solid-to-liquid ratio of 1:10. Scanning electron microscopy and energy dispersive X-ray spectroscopy revealed that the PNCPs had a pronounced capacity for calcium binding, with the PNCPs-Ca complex exhibiting a clustered structure consisting of aggregated spherical particles. Fourier-transform infrared spectroscopy, fluorescence spectroscopy, X-ray diffraction, dynamic light scattering, amino acid composition, and molecular weight distribution analyses all indicated that the PNCPs and calcium complexed via the carboxyl oxygen and amino nitrogen atoms, leading to the formation of a β-sheet structure during the chelation process. In addition, the stability of the PNCPs-Ca complex was maintained over a range of pH values consistent with those found in the human gastrointestinal tract, facilitating calcium absorption. CONCLUSION These research findings suggest the feasibility of converting by-products from livestock processing into calcium-binding peptides, providing a scientific basis for the development of novel calcium supplements and the potential reduction of resource waste. © 2023 Society of Chemical Industry.
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Affiliation(s)
- Pengbo Cui
- College of Food Science and Technology, Zhejiang University of Technology, Hangzhou, China
| | - Mengyu Li
- College of Food Science and Technology, Zhejiang University of Technology, Hangzhou, China
| | - Tianlun Shao
- College of Food Science and Technology, Zhejiang University of Technology, Hangzhou, China
| | - Mingxiao Yu
- Meitek Technology Company Limited, Qingdao, China
| | - Weixue Zhao
- Meitek Technology Company Limited, Qingdao, China
| | - Yanzhuo Song
- Meitek Technology Company Limited, Qingdao, China
| | - Yuting Ding
- College of Food Science and Technology, Zhejiang University of Technology, Hangzhou, China
| | - Jianhua Liu
- College of Food Science and Technology, Zhejiang University of Technology, Hangzhou, China
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15
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Zhong Y, Zhou Y, Ma M, Zhao Y, Xiang X, Shu C, Zheng B. Preparation, Structural Characterization, and Stability of Low-Molecular-Weight Collagen Peptides-Calcium Chelate Derived from Tuna Bones. Foods 2023; 12:3403. [PMID: 37761111 PMCID: PMC10530123 DOI: 10.3390/foods12183403] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2023] [Revised: 09/06/2023] [Accepted: 09/06/2023] [Indexed: 09/29/2023] Open
Abstract
This study was conducted to prepare calcium chelate of low-molecular-weight tuna bone collagen peptides (TBCPLMW) with a high chelation rate and to identify its structural characteristics and stability. The optimum conditions for calcium chelation of TBCPLMW (TBCPLMW-Ca) were determined through single-factor experiments and response surface methodology, and the calcium-chelating capacity reached over 90% under the optimal conditions. The amino acid compositions implied that Asp and Glu played important roles in the formation of TBCPLMW-Ca. Structural characterizations determined via spectroscopic analyses revealed that functional groups such as -COO-, N-H, C=O, and C-O were involved in forming TBCPLMW-Ca. The particle size distributions and scanning electron microscopy results revealed that folding and aggregation of peptides were found in the chelate. Stability studies showed that TBCPLMW-Ca was relatively stable under thermal processing and more pronounced changes have been observed in simulated gastric digestion, presumably the acidic environment was the main factor causing the dissociation of the TBCPLMW-Ca. The results of this study provide a scientific basis for the preparation of a novel calcium supplement and is beneficial for comprehensive utilization of tuna bones.
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Affiliation(s)
- Yaqi Zhong
- School of Food and Pharmacy, Zhejiang Ocean University, Zhoushan 316000, China; (Y.Z.); (Y.Z.); (C.S.)
- Zhejiang Marine Development Research Institute, Zhoushan 316000, China;
| | - Yufang Zhou
- Zhejiang Marine Development Research Institute, Zhoushan 316000, China;
- Science and Technology Development Center, Zhejiang Marine Development Research Institute, Zhoushan 316000, China
| | - Mingzhu Ma
- Zhejiang Marine Development Research Institute, Zhoushan 316000, China;
- Science and Technology Development Center, Zhejiang Marine Development Research Institute, Zhoushan 316000, China
| | - Yadong Zhao
- School of Food and Pharmacy, Zhejiang Ocean University, Zhoushan 316000, China; (Y.Z.); (Y.Z.); (C.S.)
| | - Xingwei Xiang
- College of Food Science and Technology, Zhejiang University of Technology, Hangzhou 310014, China
| | - Conghan Shu
- School of Food and Pharmacy, Zhejiang Ocean University, Zhoushan 316000, China; (Y.Z.); (Y.Z.); (C.S.)
- Zhejiang Marine Development Research Institute, Zhoushan 316000, China;
| | - Bin Zheng
- School of Food and Pharmacy, Zhejiang Ocean University, Zhoushan 316000, China; (Y.Z.); (Y.Z.); (C.S.)
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16
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Xue H, Luo X, Tu Y, Zhao Y, Zhang G. Amelioration of ovalbumin gel properties by EGCG via protein aggregation, hydrogen, and van der Waals force. Food Chem 2023; 422:136248. [PMID: 37126957 DOI: 10.1016/j.foodchem.2023.136248] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2022] [Revised: 04/17/2023] [Accepted: 04/24/2023] [Indexed: 05/03/2023]
Abstract
The mechanism of epigallocatechin gallate (EGCG)-modified ovalbumin gel (EMOG) was investigated. Results indicated that, with the increase of EGCG concentration from 0% to 0.05%, the opacity, hardness, and cohesiveness of EMOG increased significantly from 0.058 to 0.133, 321.0 g to 377.6 g, and 0.879 to 0.951, respectively, while the soluble protein, surface hydrophobicity, and free sulfhydryl decreased significantly by 41.74%, 28.26%, and 39.36%, respectively. Moreover, EGCG promoted the formation of dense and stable microstructures of EMOG, changed the expansion rate, and improved the stability of EMOG. Moreover, the results of silico simulation showed that EGCG would insert into ovalbumin and interact with the amino acids through van der Waals force and hydrogen bonds, leading to a compact and stable protein structure. In this paper, the mechanism of modification of ovalbumin by EGCG was elucidated at the macro and micro levels, providing insights into the action of polyphenols and proteins.
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Affiliation(s)
- Hui Xue
- Engineering Research Center of Biomass Conversion, Ministry of Education, Nanchang University, Nanchang 330047, China; State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang 330047, China
| | - Xiaoqiao Luo
- State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang 330047, China
| | - Yonggang Tu
- Jiangxi Key Laboratory of Natural Products and Functional Food, Jiangxi Agricultural University, Nanchang 330045, China
| | - Yan Zhao
- Jiangxi Key Laboratory of Natural Products and Functional Food, Jiangxi Agricultural University, Nanchang 330045, China
| | - Guowen Zhang
- State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang 330047, China.
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17
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Gan J, Xiao Z, Wang K, Kong X, Du M, Wang Z, Xu B, Cheng Y. Isolation, characterization, and molecular docking analyses of novel calcium-chelating peptide from soy yogurt and the study of its calcium chelation mechanism. JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE 2023; 103:2939-2948. [PMID: 36460619 DOI: 10.1002/jsfa.12370] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/29/2022] [Revised: 10/21/2022] [Accepted: 12/03/2022] [Indexed: 06/17/2023]
Abstract
BACKGROUND Calcium is an essential dietary mineral nutrient for humans. Digestive instability limits the bioavailability of calcium ions. Peptide-calcium chelate has been proven to excite higher calcium absorption than amino acid-calcium chelate, organic and inorganic calcium. Soy yogurt, which is produced via liquid-state fermentation using lactic acid bacteria, has a high amount of bioavailable calcium. In this study, a novel peptide with high calcium binding affinity was purified and identified from soy yogurt. The binding mechanism of peptide and calcium was then analyzed by bioinformatics and spectral analysis. Furthermore, the effect of the novel peptide on gastrointestinal stability by the Caco-2 cell model and calcium bioavailability in vivo were investigated by the zebrafish model. RESULTS The results showed that a novel peptide was purified and identified as DEDEQIPSHPPR (CBP). Calcium ions probably coordinate with Glu-2 and Glu-4 carboxyl groups via salt bridges and interact with Asp-1, Asp-3, and Arg-12 in CBP via charge pairing. The calcium binding activity of the CBP was 36.64 ± 0.04 mg g-1 . Fourier transform infrared (FTIR) spectra showed that calcium spontaneously bound to the amino group nitrogen and oxygen atoms of the carboxyl group. The binding mode is either bidentate or unidentate, depending on the circumstances. More importantly, the CBP peptide substantially increased the bone mass in a zebrafish osteoporosis model. CONCLUSION The more glutamic acid and aspartic acid, the high was the calcium affinity with peptide. Soy yogurt-derived peptides can be used as carriers of calcium ions throughout the gastrointestinal tract, which may be clinically useful for osteoporosis therapy. © 2022 Society of Chemical Industry.
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Affiliation(s)
- Jing Gan
- College of Life Science, Yantai University, Yantai, Shandong, China
| | - Ziqun Xiao
- College of Life Science, Yantai University, Yantai, Shandong, China
- Beijing Key Laboratory of Functional Food from Plant Resources, College of Food Science and Nutritional Engineering, China Agricultural University, Beijing, China
- School of Food Science and Technology, Jiangnan University, Jiangsu, China
| | - Kuaitian Wang
- College of Life Science, Yantai University, Yantai, Shandong, China
- Beijing Key Laboratory of Functional Food from Plant Resources, College of Food Science and Nutritional Engineering, China Agricultural University, Beijing, China
| | - Xiao Kong
- College of Life Science, Yantai University, Yantai, Shandong, China
| | - Mengdi Du
- College of Life Science, Yantai University, Yantai, Shandong, China
| | - Zhenhua Wang
- College of Life Science, Yantai University, Yantai, Shandong, China
| | - Bo Xu
- College of Life Science, Yantai University, Yantai, Shandong, China
| | - Yongqiang Cheng
- Beijing Key Laboratory of Functional Food from Plant Resources, College of Food Science and Nutritional Engineering, China Agricultural University, Beijing, China
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18
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Zhai W, Lin D, Mo R, Zou X, Zhang Y, Zhang L, Ge Y. Process Optimization, Structural Characterization, and Calcium Release Rate Evaluation of Mung Bean Peptides-Calcium Chelate. Foods 2023; 12:foods12051058. [PMID: 36900575 PMCID: PMC10000905 DOI: 10.3390/foods12051058] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2023] [Revised: 02/22/2023] [Accepted: 02/27/2023] [Indexed: 03/06/2023] Open
Abstract
To reduce grievous ecological environment pollution and protein resource waste during mung bean starch production, mung bean peptides-calcium chelate (MBP-Ca) was synthesized as a novel and efficient calcium supplement. Under the optimal conditions (pH = 6, temperature = 45 °C, mass ratio of mung bean peptides (MBP)/CaCl2 = 4:1, MBP concentration = 20 mg/mL, time = 60 min), the obtained MBP-Ca achieved a calcium chelating rate of 86.26%. MBP-Ca, different from MBP, was a new compound rich in glutamic acid (32.74%) and aspartic acid (15.10%). Calcium ions could bind to MBP mainly through carboxyl oxygen, carbonyl oxygen, and amino nitrogen atoms to form MBP-Ca. Calcium ions-induced intra- and intermolecular interactions caused the folding and aggregation of MBP. After the chelation reaction between calcium ions and MBP, the percentage of β-sheet in the secondary structure of MBP increased by 1.90%, the size of the peptides increased by 124.42 nm, and the dense and smooth surface structure of MBP was transformed into fragmented and coarse blocks. Under different temperatures, pH, and gastrointestinal simulated digestion conditions, MBP-Ca exhibited an increased calcium release rate compared with the conventional calcium supplement CaCl2. Overall, MBP-Ca showed promise as an alternative dietary calcium supplement with good calcium absorption and bioavailability.
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Affiliation(s)
- Wenliang Zhai
- College of Food and Pharmacy Engineering, Guiyang University, Guiyang 550005, China
| | - Dong Lin
- College of Food and Pharmacy Engineering, Guiyang University, Guiyang 550005, China
- Key Laboratory of Functional Food of Universities in Guizhou Province, Guiyang 550005, China
- Biopharmaceutical Engineering Research Center of Guizhou Province, Guiyang 550005, China
- Correspondence:
| | - Ruoshuang Mo
- College of Food and Pharmacy Engineering, Guiyang University, Guiyang 550005, China
| | - Xiaozhuan Zou
- College of Food and Pharmacy Engineering, Guiyang University, Guiyang 550005, China
| | - Yongqing Zhang
- College of Food and Pharmacy Engineering, Guiyang University, Guiyang 550005, China
| | - Liyun Zhang
- College of Food and Pharmacy Engineering, Guiyang University, Guiyang 550005, China
| | - Yonghui Ge
- College of Food and Pharmacy Engineering, Guiyang University, Guiyang 550005, China
- Biopharmaceutical Engineering Research Center of Guizhou Province, Guiyang 550005, China
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19
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Zhang J, Zhang X, Wang R, Wen K, Xu H, Xiang Z, Zhou X. Copper recovery from waste printed circuit boards with small peptides enhanced by ultrasound. Sep Purif Technol 2023. [DOI: 10.1016/j.seppur.2023.123680] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/30/2023]
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20
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Effect of radiofrequency processing on the structural and bio-functional properties of egg white proteins. Food Chem 2023; 404:134533. [DOI: 10.1016/j.foodchem.2022.134533] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2022] [Revised: 09/18/2022] [Accepted: 10/03/2022] [Indexed: 11/22/2022]
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21
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Zhang H, Qi L, Wang X, Guo Y, Liu J, Xu Y, Liu C, Zhang C, Richel A. Preparation of a cattle bone collagen peptide-calcium chelate by the ultrasound method and its structural characterization, stability analysis, and bioactivity on MC3T3-E1 cells. Food Funct 2023; 14:978-989. [PMID: 36541828 DOI: 10.1039/d2fo02146c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
This study was designed to prepare a cattle bone-derived collagen peptide-calcium chelate by the ultrasound method (CP-Ca-US), and its structure, stability, and bioactivity on MC3T3-E1 cells were characterized. Single-factor experiments optimized the preparation conditions: ultrasound power 90 W, ultrasound time 40 min, CaCl2/peptides ratio 1/2, pH 7. Under these conditions, the calcium-chelating ability reached 39.48 μg mg-1. The result of Fourier transform-infrared spectroscopy indicated that carboxyl oxygen and amino nitrogen atoms were chelation sites. Morphological analysis indicated that CP-Ca-US was characterized by a porous surface and large particles. Stability analysis demonstrated that CP-Ca-US was stable in the thermal environment and under intestinal digestion. CP-Ca-US showed more stability in gastric juice than the chelate prepared by the hydrothermal method. Cell experiments indicated that CP-Ca-US increased osteoblast proliferation (proliferation rate 153% at a concentration of 300 μg mL-1) and altered the cell cycle. Significantly, CP-Ca-US enhanced calcium absorption by interacting with calcium-sensing receptors and promoted the mineralization of MC3T3-E1 cells. This study provides the scientific basis for applying the ultrasound method to prepare peptide-calcium chelates and clarifies the positive role of chelates in bone building.
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Affiliation(s)
- Hongru Zhang
- Key Laboratory of Agro-Products Processing, Ministry of Agriculture and Rural Affairs, Institute of Food Science and Technology, Chinese Academy of Agricultural Sciences, Beijing, 100193, China. .,Laboratory of Biomass and Green Technologies, University of Liege-Gembloux Agro-Bio Tech, Passage des Déportés 2, B-5030, Gembloux, Belgium
| | - Liwei Qi
- Key Laboratory of Agro-Products Processing, Ministry of Agriculture and Rural Affairs, Institute of Food Science and Technology, Chinese Academy of Agricultural Sciences, Beijing, 100193, China.
| | - Xiaodan Wang
- Adaptation Physiology Group, Department of Animal Sciences, Wageningen University & Research, 6708 WD, Wageningen, The Netherlands
| | - Yujie Guo
- Key Laboratory of Agro-Products Processing, Ministry of Agriculture and Rural Affairs, Institute of Food Science and Technology, Chinese Academy of Agricultural Sciences, Beijing, 100193, China.
| | - Jiqian Liu
- Key Laboratory of Agro-Products Processing, Ministry of Agriculture and Rural Affairs, Institute of Food Science and Technology, Chinese Academy of Agricultural Sciences, Beijing, 100193, China.
| | - Yang Xu
- Inner Mongolia Peptide (Mengtai) Biological Engineering Co., Ltd, Shengle Economic Park, Helinger County, Hohhot, Inner Mongolia, 010000, China
| | - Chengjiang Liu
- Institute of Agro-Products Processing Science, Technology Xinjiang Academy of Agricultural and Reclamation Science, Shihezi 832000, China.
| | - Chunhui Zhang
- Key Laboratory of Agro-Products Processing, Ministry of Agriculture and Rural Affairs, Institute of Food Science and Technology, Chinese Academy of Agricultural Sciences, Beijing, 100193, China.
| | - Aurore Richel
- Laboratory of Biomass and Green Technologies, University of Liege-Gembloux Agro-Bio Tech, Passage des Déportés 2, B-5030, Gembloux, Belgium
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22
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Shao J, Wang M, Zhang G, Zhang B, Hao Z. Preparation and characterization of sesame peptide-calcium chelate with different molecular weight. INTERNATIONAL JOURNAL OF FOOD PROPERTIES 2022. [DOI: 10.1080/10942912.2022.2130355] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
Affiliation(s)
- Jiawei Shao
- School of Food Science and Engineering, Shandong Agricultural and Engineering University, Jinan, China
- School of Biological Science and Technology, University of Jinan, Jinan, China
| | - Minghui Wang
- School of Biological Science and Technology, University of Jinan, Jinan, China
| | - Guixiang Zhang
- School of Biological Science and Technology, University of Jinan, Jinan, China
| | - Bingwen Zhang
- School of Biological Science and Technology, University of Jinan, Jinan, China
| | - Zhenghong Hao
- School of Food Science and Engineering, Shandong Agricultural and Engineering University, Jinan, China
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23
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Calcium-chelating improved zein peptide stability, cellular uptake, and bioactivity by influencing the structural characterization. Food Res Int 2022; 162:112033. [DOI: 10.1016/j.foodres.2022.112033] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2022] [Revised: 10/06/2022] [Accepted: 10/09/2022] [Indexed: 11/19/2022]
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24
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Yu H, Chen Y, Zhu J. Osteogenic activities of four calcium-chelating microalgae peptides. JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE 2022; 102:6643-6649. [PMID: 35603586 DOI: 10.1002/jsfa.12031] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/15/2021] [Revised: 04/25/2022] [Accepted: 05/17/2022] [Indexed: 06/15/2023]
Abstract
BACKGROUND Adequate calcium intake is necessary to prevent osteoporosis, which poses significant public health challenges. The natural bioactive peptide calcium chelates have been regarded as superior calcium supplements. Microalgae peptides are regarded as potential candidates for protection from bone loss in osteoporosis. This study aimed to prepare microalgae calcium-chelating peptides from four microalgae proteins and assess their osteogenic activities in osteoporosis-like zebrafish. RESULTS After in vitro gastrointestinal digestion, 4.42% Chlorella pyrenoidosa protein, 2.74% Nannochloropsis oceanica protein, 6.07% Arthospira platensis protein and 10.47% Dunaliella salina protein were retained. The calcium-chelating capacities of four microalgae protein hydrolysates (MPHs) ranged from 14.10 ± 7.16% to 34.11 ± 9.34%. CaCl2 addition increased the maximum absorption peaks, absorption intensities and particle sizes of MPHs. Calcium-chelating MPHs showed stronger osteogenic activities than MPHs in the osteoporosis-like zebrafish model, with significantly increased mineralized tissue area and integrated optical density. CONCLUSION Microalgae proteins have favorable digestibilities. Among the four MPHs, Nannochloropsis oceanica protein hydrolysates showed the highest calcium-chelating capacity, which might be due to its high degree of hydrolysis after in vitro digestion and high content of Ser, Tyr, Thr, Asp and Glu. The absorption intensities and particle sizes of MPHs both increased after calcium addition. MPH treatment could reverse dexamethasone-induced osteoporosis of zebrafish, and MPHs-Ca chelates showed higher osteogenic activities in osteoporosis-like phenotype zebrafish. © 2022 Society of Chemical Industry.
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Affiliation(s)
- Huilin Yu
- Institute of Food Science, College of Biosystems Engineering and Food Science, Zhejiang University, Hangzhou, China
| | - Yixuan Chen
- Institute of Food Science, College of Biosystems Engineering and Food Science, Zhejiang University, Hangzhou, China
| | - Jiajin Zhu
- Institute of Food Science, College of Biosystems Engineering and Food Science, Zhejiang University, Hangzhou, China
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25
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Ke H, Ma R, Liu X, Xie Y, Chen J. Highly effective peptide-calcium chelate prepared from aquatic products processing wastes: Stickwater and oyster shells. Lebensm Wiss Technol 2022. [DOI: 10.1016/j.lwt.2022.113947] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
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26
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An J, Zhang Y, Ying Z, Li H, Liu W, Wang J, Liu X. The Formation, Structural Characteristics, Absorption Pathways and Bioavailability of Calcium–Peptide Chelates. Foods 2022; 11:foods11182762. [PMID: 36140890 PMCID: PMC9497609 DOI: 10.3390/foods11182762] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2022] [Revised: 09/04/2022] [Accepted: 09/06/2022] [Indexed: 12/04/2022] Open
Abstract
Calcium is one of the most important mineral elements in the human body and is closely related to the maintenance of human health. To prevent calcium deficiency, various calcium supplements have been developed, but their application tends to be limited by low calcium content and highly irritating effects on the stomach, among other side effects. Recently, calcium–peptide chelates, which have excellent stability and are easily absorbed, have received attention as an alternative emerging calcium supplement. Calcium-binding peptides (CaBP) are usually obtained via the hydrolysis of animal or plant proteins, and calcium-binding capacity (CaBC) can be further improved through chromatographic purification techniques. In calcium ions, the phosphate group, carboxylic group and nitrogen atom in the peptide are the main binding sites, and the four modes of combination are the unidentate mode, bidentate mode, bridging mode and α mode. The stability and safety of calcium–peptide chelates are discussed in this paper, the intestinal absorption pathways of calcium elements and peptides are described, and the bioavailability of calcium–peptide chelates, both in vitro and in vivo, is also introduced. This review of the research status of calcium–peptide chelates aims to provide a reasonable theoretical basis for their application as calcium supplementation products.
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Affiliation(s)
- Jiulong An
- National Soybean Processing Industry Technology Innovation Center, Beijing Technology and Business University (BTBU), Beijing 100048, China
| | - Yinxiao Zhang
- National Soybean Processing Industry Technology Innovation Center, Beijing Technology and Business University (BTBU), Beijing 100048, China
| | - Zhiwei Ying
- National Soybean Processing Industry Technology Innovation Center, Beijing Technology and Business University (BTBU), Beijing 100048, China
| | - He Li
- National Soybean Processing Industry Technology Innovation Center, Beijing Technology and Business University (BTBU), Beijing 100048, China
- Correspondence: (H.L.); (X.L.); Tel.: +86-10-68984481 (H.L.)
| | - Wanlu Liu
- National Soybean Processing Industry Technology Innovation Center, Beijing Technology and Business University (BTBU), Beijing 100048, China
| | - Junru Wang
- National Soybean Processing Industry Technology Innovation Center, Beijing Technology and Business University (BTBU), Beijing 100048, China
| | - Xinqi Liu
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, Beijing Technology and Business University (BTBU), Beijing 100048, China
- Correspondence: (H.L.); (X.L.); Tel.: +86-10-68984481 (H.L.)
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27
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Hu G, Wang D, Sun L, Su R, Corazzin M, Sun X, Dou L, Zhang M, Zhao L, Su L, Jin Y. Isolation, Purification and Structure Identification of a Calcium-Binding Peptide from Sheep Bone Protein Hydrolysate. Foods 2022; 11:foods11172655. [PMID: 36076840 PMCID: PMC9455869 DOI: 10.3390/foods11172655] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2022] [Revised: 08/21/2022] [Accepted: 08/29/2022] [Indexed: 11/16/2022] Open
Abstract
To isolate a novel peptide with calcium-binding capacity, sheep bone protein was hydrolyzed sequentially using a dual-enzyme system (alcalase treatment following neutrase treatment) and investigated for its characteristics, separation, purification, and structure. The sheep bone protein hydrolysate (SBPH) was enriched in key amino acids such as Gly, Arg, Pro, Leu, Lys, Glu, Val, and Asp. The fluorescence spectra, circular dichroism spectra, and Fourier-transform infrared spectroscopy results showed that adding calcium ions decreased the α-helix and β-sheet content but significantly increased the random and β-turn content (p < 0.05). Carboxyl oxygen and amino nitrogen atoms of SBPH may participate in peptide−calcium binding. Scanning electron microscopy and energy dispersive spectrometry results showed that SBPH had strong calcium-chelating ability and that the peptide−calcium complex (SBPH−Ca) combined with calcium to form a spherical cluster structure. SBPH was separated and purified gradually by ultrafiltration, gel filtration chromatography, and reversed-phase high-performance liquid chromatography. Liquid chromatography-electrospray ionization/mass spectrometry identified the amino acid sequences as GPSGLPGERG (925.46 Da) and GAPGKDGVRG (912.48 Da), with calcium-binding capacities of 89.76 ± 0.19% and 88.26 ± 0.25%, respectively. The results of this study provide a scientific basis for the preparation of a new type of calcium supplement and high-value utilization of sheep bone.
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Affiliation(s)
- Guanhua Hu
- College of Food Science and Engineering, Inner Mongolia Agricultural University, Hohhot 010018, China
| | - Debao Wang
- Agricultural and Animal Products Processing Research Institute, Inner Mongolia Academy of Agriculture and Animal Husbandry Academy, Hohhot 010018, China
| | - Lina Sun
- College of Food Science and Engineering, Inner Mongolia Agricultural University, Hohhot 010018, China
| | - Rina Su
- Inner Mongolia Vocational College of Chemical Engineering, Hohhot 010010, China
| | - Mirco Corazzin
- Department of Agricultural, Food, Environmental and Animal Sciences, University of Udine, 33100 Udine, Italy
| | - Xueying Sun
- College of Food Science and Engineering, Inner Mongolia Agricultural University, Hohhot 010018, China
| | - Lu Dou
- College of Food Science and Engineering, Inner Mongolia Agricultural University, Hohhot 010018, China
| | - Min Zhang
- College of Food Science and Engineering, Inner Mongolia Agricultural University, Hohhot 010018, China
| | - Lihua Zhao
- College of Food Science and Engineering, Inner Mongolia Agricultural University, Hohhot 010018, China
| | - Lin Su
- College of Food Science and Engineering, Inner Mongolia Agricultural University, Hohhot 010018, China
| | - Ye Jin
- College of Food Science and Engineering, Inner Mongolia Agricultural University, Hohhot 010018, China
- Correspondence:
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28
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Huang W, Lao L, Deng Y, Li Z, Liao W, Duan S, Xiao S, Cao Y, Miao J. Preparation, characterization, and osteogenic activity mechanism of casein phosphopeptide-calcium chelate. Front Nutr 2022; 9:960228. [PMID: 35983483 PMCID: PMC9378869 DOI: 10.3389/fnut.2022.960228] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2022] [Accepted: 07/07/2022] [Indexed: 12/25/2022] Open
Abstract
Casein phosphopeptides (CPPs) are good at calcium-binding and intestinal calcium absorption, but there are few studies on the osteogenic activity of CPPs. In this study, the preparation of casein phosphopeptide calcium chelate (CPP-Ca) was optimized on the basis of previous studies, and its peptide-calcium chelating activity was characterized. Subsequently, the effects of CPP-Ca on the proliferation, differentiation, and mineralization of MC3T3-E1 cells were studied, and the differentiation mechanism of CPP-Ca on MC3T3-E1 cells was further elucidated by RNA sequencing (RNA-seq). The results showed that the calcium chelation rate of CPPs was 23.37%, and the calcium content of CPP-Ca reached 2.64 × 105 mg/kg. The test results of Ultraviolet–Visible absorption spectroscopy (UV) and Fourier transform infrared spectroscopy (FTIR) indicated that carboxyl oxygen and amino nitrogen atoms of CPPs might be chelated with calcium during the chelation. Compared with the control group, the proliferation of MC3T3-E1 cells treated with 250 μg/mL of CPP-Ca increased by 21.65%, 26.43%, and 28.43% at 24, 48, and 72 h, respectively, and the alkaline phosphatase (ALP) activity and mineralized calcium nodules of MC3T3-E1 cells were notably increased by 55% and 72%. RNA-seq results showed that 321 differentially expressed genes (DEGs) were found in MC3T3-E1 cells treated with CPP-Ca, including 121 upregulated and 200 downregulated genes. Gene ontology (GO) revealed that the DEGs mainly played important roles in the regulation of cellular components. The enrichment of the Kyoto Encyclopedia of Genes and Genomes Database (KEGG) pathway indicated that the AMPK, PI3K-Akt, MAPK, and Wnt signaling pathways were involved in the differentiation of MC3T3-E1 cells. The results of a quantitative real-time PCR (qRT-PCR) showed that compared with the blank control group, the mRNA expressions of Apolipoprotein D (APOD), Osteoglycin (OGN), and Insulin-like growth factor (IGF1) were significantly increased by 2.6, 2.0 and 3.0 times, respectively, while the mRNA levels of NOTUM, WIF1, and LRP4 notably decreased to 2.3, 2.1, and 4.2 times, respectively, which were consistent both in GO functional and KEGG enrichment pathway analysis. This study provided a theoretical basis for CPP-Ca as a nutritional additive in the treatment and prevention of osteoporosis.
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Affiliation(s)
- Wen Huang
- Guangdong Provincial Key Laboratory of Nutraceuticals and Functional Foods, College of Food Science, South China Agricultural University, Guangzhou, China
| | - Linhui Lao
- Guangdong Provincial Key Laboratory of Nutraceuticals and Functional Foods, College of Food Science, South China Agricultural University, Guangzhou, China
| | - Yuliang Deng
- Guangdong Provincial Key Laboratory of Nutraceuticals and Functional Foods, College of Food Science, South China Agricultural University, Guangzhou, China
| | - Ziwei Li
- Guangdong Provincial Key Laboratory of Nutraceuticals and Functional Foods, College of Food Science, South China Agricultural University, Guangzhou, China
| | - Wanwen Liao
- Guangdong Provincial Key Laboratory of Nutraceuticals and Functional Foods, College of Food Science, South China Agricultural University, Guangzhou, China
| | - Shan Duan
- Guangdong Provincial Key Laboratory of Nutraceuticals and Functional Foods, College of Food Science, South China Agricultural University, Guangzhou, China
| | - Suyao Xiao
- Guangdong Provincial Key Laboratory of Nutraceuticals and Functional Foods, College of Food Science, South China Agricultural University, Guangzhou, China
| | - Yong Cao
- 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.,State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing, China.,State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources (Guangxi Normal University), Guilin, China.,Solid-State Fermentation Resource Utilization Key Laboratory of Sichuan Province, Yibin, China
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29
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Calcium supplements and structure–activity relationship of peptide-calcium chelates: a review. Food Sci Biotechnol 2022; 31:1111-1122. [DOI: 10.1007/s10068-022-01128-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2022] [Revised: 05/30/2022] [Accepted: 06/28/2022] [Indexed: 11/04/2022] Open
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30
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Pulse electric field assisted process for extraction of Jiuzao glutelin extract and its physicochemical properties and biological activities investigation. Food Chem 2022; 383:132304. [DOI: 10.1016/j.foodchem.2022.132304] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2021] [Revised: 01/24/2022] [Accepted: 01/29/2022] [Indexed: 01/10/2023]
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31
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Conventional and in silico approaches to select promising food-derived bioactive peptides: A review. Food Chem X 2022; 13:100183. [PMID: 35499000 PMCID: PMC9039911 DOI: 10.1016/j.fochx.2021.100183] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2021] [Revised: 11/18/2021] [Accepted: 12/06/2021] [Indexed: 02/06/2023] Open
Abstract
Seaweed and edible insects are considered new sources of bioactive peptides. Conventional approaches are necessary to validate the bioactivity of peptides. Bioinformatics tools accelerate the obtaining of bioactive peptides. The integrated approach is a promising strategy to obtain bioactive peptides.
The interest for food-derived bioactive peptides, either from common or unconventional sources, has increased due to their potential therapeutic effect against a wide range of diseases. The study of such bioactive peptides using conventional methods is a long journey, expensive and time-consuming. Hence, bioinformatic approaches, which can not only help to predict the formation of bioactive peptides from any known protein source, but also to analyze the protein structure/function relationship, have gained a new meaning in this scientific field. Therefore, this review aims to provides an overview of conventional characterization methods and the most recent advances in the field of in silico approaches for predicting and screening promising food-derived bioactive peptides.
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