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Judd S, Hutton A, Thomas G, Hill H. Evaluation of a casein glycomacropeptide-based protein substitute, in the dietary management of NTBC-induced tyrosinaemia in patients with alkaptonuria: A prospective open-label study. J Hum Nutr Diet 2024. [PMID: 39290064 DOI: 10.1111/jhn.13360] [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: 01/02/2024] [Accepted: 07/29/2024] [Indexed: 09/19/2024]
Abstract
BACKGROUND 2-(2-Nitro-4-trifluoromethylbenzoyl)-1,3-cyclohexanedione (NTBC) treatment of alkaptonuria (AKU) leads to increased blood tyrosine levels, causing skin issues and potentially sight-threatening corneal keratopathy. Adherence to dietary management of NTBC-induced tyrosinemia, a low-protein diet with or without protein substitutes, can be difficult for patients. This 28-day interventional study evaluated a low tyrosine casein glycomacropeptide (cGMP) protein substitute (TYR sphere)®, a 20 g protein equivalent, cGMP-based protein substitute, in terms of adherence, palatability, usability, comparison to amino acid (AA)-based protein substitutes, gastrointestinal tolerance and metabolic control in adults with NTBC-induced tyrosinaemia. METHODS Four adults (mean 61.1 years, range 53.3-69.3 years) with AKU and NTBC-induced tyrosinaemia were recruited from the United Kingdom National Alkaptonuria Centre (NAC). The cGMP protein substitute was prescribed based on individual nutritional requirements, replacing ≥1 AA-based protein substitute. Participants recorded product-related data in study diaries, using five-point Likert scales and daily and weekly logs. To determine metabolic control, prestudy blood tyrosine levels were compared to weekly blood spot tests during the study. RESULTS Median cGMP protein substitute adherence was 98%. Most participants rated palatability and usability positively, and preferred cGMP protein substitute to AA-based products. There were no notable gastrointestinal changes, and metabolic control was maintained. CONCLUSIONS cGMP protein substitute is a palatable and well-tolerated option in the dietary management of AKU patients with NTBC-induced tyrosinaemia.
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Affiliation(s)
| | - Ali Hutton
- Vitaflo International Ltd, Liverpool, UK
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Lu C, Wei H, Xu L, Wang WL, Yang C, Shi X, Gao H, Feng YW, Zhou J, Zhang Y. Enrichment of sialic acid-containing casein glycomacropeptide in protein hydrolysates using phenylboronic acid-functionalized mesoporous silica nanoparticles. Talanta 2024; 267:125174. [PMID: 37708769 DOI: 10.1016/j.talanta.2023.125174] [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] [Received: 07/14/2023] [Revised: 08/22/2023] [Accepted: 09/06/2023] [Indexed: 09/16/2023]
Abstract
Glycomacropeptide (GMP) is a bioactive peptide of high value, rich in glycosylation sites and with physiological and dietary therapeutic value. The enrichment and detection of GMP facilitates the accurate quantification and the identification of adulteration of GMP in food products. In GMP, sialic acid is an abundant glycosyl group and is mainly located at the end of the sugar chain. Here, we propose a novel GMP enrichment strategy based on the affinity of sialic acid for phenylboronic acid groups that shift with environmental pH. As an enrichment material, mesoporous silica nanoparticles were progressively modified with aminopropyl and phenylboronic acid groups. The developed material showed excellent selectivity for sialic acid in the presence of galactose and fucose as interferents. The adsorption behavior of sialic acid-containing GMP fits the Langmuir adsorption model, offering a recovery of 71.72% (in terms of sialic acid content) and a GMP relative purity of 0.957. Results from sodium dodecyl sulfate-polyacrylamide gel electrophoresis (SDS-PAGE) and size exclusion chromatography confirm that the enriched GMP contains almost no other unexpected proteins and peptides, indicating that the developed strategy holds promise for purifying GMP in various dairy systems.
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Affiliation(s)
- Chenhui Lu
- State Key Laboratory of Food Science and Resources, Jiangnan University, Wuxi, 214122, Jiangsu, China; International Joint Laboratory on Food Safety, Institute of Analytical Food Safety, School of Food Science and Technology, Jiangnan University, Wuxi, 214122, Jiangsu, China.
| | - Haodong Wei
- State Key Laboratory of Food Science and Resources, Jiangnan University, Wuxi, 214122, Jiangsu, China; International Joint Laboratory on Food Safety, Institute of Analytical Food Safety, School of Food Science and Technology, Jiangnan University, Wuxi, 214122, Jiangsu, China.
| | - Lizhi Xu
- State Key Laboratory of Food Science and Resources, Jiangnan University, Wuxi, 214122, Jiangsu, China; International Joint Laboratory on Food Safety, Institute of Analytical Food Safety, School of Food Science and Technology, Jiangnan University, Wuxi, 214122, Jiangsu, China.
| | - Wen-Long Wang
- State Key Laboratory of Food Science and Resources, Jiangnan University, Wuxi, 214122, Jiangsu, China; International Joint Laboratory on Food Safety, Institute of Analytical Food Safety, School of Food Science and Technology, Jiangnan University, Wuxi, 214122, Jiangsu, China.
| | - Cheng Yang
- State Key Laboratory of Food Science and Resources, Jiangnan University, Wuxi, 214122, Jiangsu, China; International Joint Laboratory on Food Safety, Institute of Analytical Food Safety, School of Food Science and Technology, Jiangnan University, Wuxi, 214122, Jiangsu, China.
| | - Xueli Shi
- Shijiazhuang City Maternal and Child Health Hospital, Shijiazhuang, 050051, Hebei, China.
| | - Hui Gao
- Shijiazhuang City Maternal and Child Health Hospital, Shijiazhuang, 050051, Hebei, China.
| | - Yong-Wei Feng
- Technology Innovation Center of Special Food for State Market Regulation, Wuxi Food Safety Inspection and Test Center, Wuxi, 214100, China.
| | - Jianzhong Zhou
- College of Food Science and Pharmacy, Xinjiang Agricultural University, No. 311 Nongda Dong Road, Ürümqi, 830052, Xinjiang Uygur Autonomous Region, PR China.
| | - Yi Zhang
- State Key Laboratory of Food Science and Resources, Jiangnan University, Wuxi, 214122, Jiangsu, China; International Joint Laboratory on Food Safety, Institute of Analytical Food Safety, School of Food Science and Technology, Jiangnan University, Wuxi, 214122, Jiangsu, China.
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Chen Q, Lai S, Dong L, Liu Y, Pan D, Wu Z, Wu Z, Zhou Y, Ren Y, Zhang J, Liu L, Liu L. Characterization and determination of casein glycomacropeptide in dairy products by UHPLC-MS/MS based on its characteristic peptide. Food Chem 2024; 430:137049. [PMID: 37544157 DOI: 10.1016/j.foodchem.2023.137049] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2023] [Revised: 07/25/2023] [Accepted: 07/27/2023] [Indexed: 08/08/2023]
Abstract
The ultra-high-performance liquid chromatography tandem mass spectrometry (UHPLC-MS) method was built to quantify the casein glycomacropeptide (CGMP) in bovine dairy products accurately based on targeted proteomics. Qualitative analysis of theoretical peptides was carried out using high-resolution mass spectrometry (HRMS) and protein software. Isotope-labeled characteristic peptides were acquired via the labeled amino acid condensation method to correct the matrix effects. Peptide MAIPPK was the representative characteristic peptide for distinguishing the CGMP from κ-casein through trypsin digestion. After optimizing the pre-treatment conditions, the final 8% oxidant concentration was selected and the 10% formic acid concentration with 2.5 h oxidation time. Moreover, the results of methodological verification showed that the recovery rate was 103.7%, meanwhile the precision of inter-day and intra-day was less than 5%. In conclusion, the research demonstrated the characteristic peptide MAIPPK could quantitatively applied to detect CGMP in dairy products.
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Affiliation(s)
- Qin Chen
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products, Key Laboratory of Animal Protein Deep Processing Technology of Zhejiang, Zhejiang-Malaysia Joint Research Laboratory for Agricultural Product Processing and Nutrition, School of Food and Pharmaceutical Sciences, Ningbo University, Ningbo, Zhejiang, PR China
| | - Shiyun Lai
- Hangzhou Pupai Technology Co., Ltd, Hangzhou 310000, China
| | - Lezhen Dong
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products, Key Laboratory of Animal Protein Deep Processing Technology of Zhejiang, Zhejiang-Malaysia Joint Research Laboratory for Agricultural Product Processing and Nutrition, School of Food and Pharmaceutical Sciences, Ningbo University, Ningbo, Zhejiang, PR China
| | - Yahui Liu
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products, Key Laboratory of Animal Protein Deep Processing Technology of Zhejiang, Zhejiang-Malaysia Joint Research Laboratory for Agricultural Product Processing and Nutrition, School of Food and Pharmaceutical Sciences, Ningbo University, Ningbo, Zhejiang, PR China
| | - Daodong Pan
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products, Key Laboratory of Animal Protein Deep Processing Technology of Zhejiang, Zhejiang-Malaysia Joint Research Laboratory for Agricultural Product Processing and Nutrition, School of Food and Pharmaceutical Sciences, Ningbo University, Ningbo, Zhejiang, PR China
| | - Zhen Wu
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products, Key Laboratory of Animal Protein Deep Processing Technology of Zhejiang, Zhejiang-Malaysia Joint Research Laboratory for Agricultural Product Processing and Nutrition, School of Food and Pharmaceutical Sciences, Ningbo University, Ningbo, Zhejiang, PR China
| | - Zufang Wu
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products, Key Laboratory of Animal Protein Deep Processing Technology of Zhejiang, Zhejiang-Malaysia Joint Research Laboratory for Agricultural Product Processing and Nutrition, School of Food and Pharmaceutical Sciences, Ningbo University, Ningbo, Zhejiang, PR China
| | - Ying Zhou
- Zhejiang Provincial Center for Disease Control and Prevention, Hangzhou 310051, China
| | - Yiping Ren
- Zhejiang Provincial Center for Disease Control and Prevention, Hangzhou 310051, China
| | - Jingshun Zhang
- Zhejiang Provincial Center for Disease Control and Prevention, Hangzhou 310051, China.
| | - Lingyi Liu
- Department of Food Science and Technology, University of Nebraska-Lincoln, 68588 NE, USA
| | - Lianliang Liu
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products, Key Laboratory of Animal Protein Deep Processing Technology of Zhejiang, Zhejiang-Malaysia Joint Research Laboratory for Agricultural Product Processing and Nutrition, School of Food and Pharmaceutical Sciences, Ningbo University, Ningbo, Zhejiang, PR China.
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Lu C, Feng YW, He Y, Xu L, Wang WL, Yang C, Shi X, Gao H, Zhang Y. Foods for Aromatic Amino Acid Metabolism Disorder: A Review of Current Status, Challenges and Opportunities. FOOD REVIEWS INTERNATIONAL 2022. [DOI: 10.1080/87559129.2022.2122993] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Affiliation(s)
- Chenhui Lu
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu, China
| | - Yong-Wei Feng
- Technology Innovation Center of Special Food for State Market Regulation, Wuxi Food Safety Inspection and Test Center, Wuxi, China
| | - Yongxi He
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu, China
- International Joint Laboratory on Food Safety, Institute of Analytical Food Safety, School of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu, China
| | - Lizhi Xu
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu, China
- International Joint Laboratory on Food Safety, Institute of Analytical Food Safety, School of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu, China
| | - Wen-Long Wang
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu, China
- International Joint Laboratory on Food Safety, Institute of Analytical Food Safety, School of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu, China
| | - Cheng Yang
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu, China
- International Joint Laboratory on Food Safety, Institute of Analytical Food Safety, School of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu, China
| | - Xueli Shi
- Shijiazhuang City Maternal and Child Health Hospital, Shijiazhuang, Hebei, China
| | - Hui Gao
- Shijiazhuang City Maternal and Child Health Hospital, Shijiazhuang, Hebei, China
| | - Yi Zhang
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu, China
- International Joint Laboratory on Food Safety, Institute of Analytical Food Safety, School of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu, China
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Karimidastjerd A, Gulsunoglu-Konuskan Z. Biological, functional and nutritional properties of caseinomacropeptide from sweet whey. Crit Rev Food Sci Nutr 2021:1-13. [PMID: 34802348 DOI: 10.1080/10408398.2021.2000360] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
Bioactive peptides derived from bovine milk proteins have gained much attention due to their health promoting functions. All over the world, cheese industry generates high volumes of sweet whey that could be used as an alternative source of bioactive peptide in nutraceuticals and food industry. Caseinomacropeptide (CMP) is a bioactive peptide derived from κ-casein by the action of chymosin during cheese manufacturing. CMP consist of two forms which are glycosylated (gCMP) and non-glycosylated (aCMP). The predominant carbohydrate in gCMP is N-acetylneuraminic (sialic acid) which gives functional and biological properties to gCMP. Due to its unique composition and technological characteristics such as wide pH range solubility, emulsifying, gelling, and foaming ability, CMP has received special attention. Therefore, there is an increased interest in researches for isolation and concentration of CMP. However, the isolation and purification methods are not cost-effective. It would be easier to optimize the conditions for isolation, purification, and utilization of CMP in nutraceuticals and food industry through deeper understanding of the effective factors. In this review, the structure of CMP, biological activities, isolation, and purification methods, the factors affecting functional properties and application areas of CMP in food industry are discussed.
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Affiliation(s)
- Atefeh Karimidastjerd
- Department of Food Engineering, Faculty of Chemical and Metallurgical, Istanbul Technical University, Istanbul, Turkey
| | - Zehra Gulsunoglu-Konuskan
- Nutrition and Dietetics Department, Faculty of Health Sciences, Istanbul Aydin University, Istanbul, Turkey
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