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Fan C, Guo Y, Cai F, Wang L, Yu W, Mei X, Cheng X. Influence of pH on the emulsifying property of high methyl-esterified citrus pectin in the presence of calcium cations. Carbohydr Polym 2024; 345:122581. [PMID: 39227110 DOI: 10.1016/j.carbpol.2024.122581] [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: 01/21/2024] [Revised: 07/04/2024] [Accepted: 08/04/2024] [Indexed: 09/05/2024]
Abstract
High methyl-esterified citrus pectin (HMCP) is often used as a thickness in food products and is considered a poor emulsifier, especially in neutral pH solutions. Our previous findings show that the emulsifying capacity of HMCP could be significantly enhanced by calcium cations. Besides, the pH of the solution decreased in the presence of calcium cations. However, the impact of solution pH on HMCP emulsifying capacity in the presence of calcium cations is unclear. In this study, the pH of the HMCP solution was adjusted from 3.00 to 8.00 before adding calcium cations. The solution properties and emulsifying properties were analyzed in light of the existence of calcium cations. The results showed that the pH of the HMCP solutions decreased after bringing calcium cations into them. Calcium cations could change the solution rheological properties, particle size distributions and morphologies, and the particle microenvironmental hydrophobic areas in HMCP solutions while increasing the pH of HMCP solutions, contributing to improving the emulsifying capacity of HMCP. HMCP had the best emulsifying ability when the pH of the HMCP solutions was kept at a neutral level. This research gives us new ideas to adjust the emulsifying property of HMCP.
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Affiliation(s)
- Chuanhui Fan
- Key Laboratory of Cold Chain Logistics Technology for Agro-product, Ministry of Agriculture and Rural Affairs, Institute of Agro-product Processing and Nuclear Agricultural Technology, Hubei Academy of Agricultural Sciences, Wuhan 430064, China; Agro-product Processing Research Sub-center of Hubei Innovation Center of Agriculture Science and Technology, Hubei Academy of Agricultural Sciences, Wuhan 430064, China.
| | - Yu Guo
- School of Food and Biological Engineering, Hubei University of Technology, Wuhan 430068, China
| | - Fang Cai
- Key Laboratory of Cold Chain Logistics Technology for Agro-product, Ministry of Agriculture and Rural Affairs, Institute of Agro-product Processing and Nuclear Agricultural Technology, Hubei Academy of Agricultural Sciences, Wuhan 430064, China; Agro-product Processing Research Sub-center of Hubei Innovation Center of Agriculture Science and Technology, Hubei Academy of Agricultural Sciences, Wuhan 430064, China
| | - Lan Wang
- Key Laboratory of Cold Chain Logistics Technology for Agro-product, Ministry of Agriculture and Rural Affairs, Institute of Agro-product Processing and Nuclear Agricultural Technology, Hubei Academy of Agricultural Sciences, Wuhan 430064, China; Agro-product Processing Research Sub-center of Hubei Innovation Center of Agriculture Science and Technology, Hubei Academy of Agricultural Sciences, Wuhan 430064, China
| | - Wei Yu
- Key Laboratory of Cold Chain Logistics Technology for Agro-product, Ministry of Agriculture and Rural Affairs, Institute of Agro-product Processing and Nuclear Agricultural Technology, Hubei Academy of Agricultural Sciences, Wuhan 430064, China; Agro-product Processing Research Sub-center of Hubei Innovation Center of Agriculture Science and Technology, Hubei Academy of Agricultural Sciences, Wuhan 430064, China.
| | - Xin Mei
- Key Laboratory of Cold Chain Logistics Technology for Agro-product, Ministry of Agriculture and Rural Affairs, Institute of Agro-product Processing and Nuclear Agricultural Technology, Hubei Academy of Agricultural Sciences, Wuhan 430064, China; Agro-product Processing Research Sub-center of Hubei Innovation Center of Agriculture Science and Technology, Hubei Academy of Agricultural Sciences, Wuhan 430064, China
| | - Xueling Cheng
- Key Laboratory of Cold Chain Logistics Technology for Agro-product, Ministry of Agriculture and Rural Affairs, Institute of Agro-product Processing and Nuclear Agricultural Technology, Hubei Academy of Agricultural Sciences, Wuhan 430064, China; Agro-product Processing Research Sub-center of Hubei Innovation Center of Agriculture Science and Technology, Hubei Academy of Agricultural Sciences, Wuhan 430064, China
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Yan G, Li Y, Wang S, Li Y, Zhang L, Yan J, Sun Y. Oil-water interfacial behaviour of different caseins and stability of emulsions: Effect of micelle content and caseins concentrations. Food Chem X 2024; 23:101784. [PMID: 39286043 PMCID: PMC11403417 DOI: 10.1016/j.fochx.2024.101784] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2024] [Revised: 08/23/2024] [Accepted: 08/25/2024] [Indexed: 09/19/2024] Open
Abstract
This study aimed to investigate the interfacial behaviour of caseins in different micelle content and its effect on the stability of emulsions, including micellar casein concentrate (MCN), calcium caseinate (CaC) and sodium caseinate (NaC). Results revealed that at high protein concentrations (0.5 %-2.5 %), MCN, CaC and NaC exhibited similar interfacial behaviour as well as unfolding rate constants (k 1 ) of 3.11-3.41 × 10-4 (s-1), 2.96-3.35 × 10-4 (s-1) and 2.75-3.27 × 10-4 (s-1), respectively. The interfacial layer formed was dominated by non-micelles, and microscopic images revealed the thickness of the interfacial layer to be 10-20 nm. By contrast, at low concentrations, the differences in the slope of E-π curves and k 1 indicated that the micelle content of casein affects protein interfacial behaviour and properties and that micellar casein is involved in the formation of the interfacial layer. The formation of large numbers of droplets during emulsion preparation results in a similar low concentration environment. Cryo-TEM showed adsorption of micellar casein in all three casein-stabilised emulsions, and the amount of adsorption was proportional to the micelle content. NaC has faster adsorption and rearrangement rates due to fewer micelles and more non-micelles, so that NaC forms smaller droplets and more stable emulsions than those formed by MCN and CaC within the range of 0.5 % to 2.0 %.
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Affiliation(s)
- Guosen Yan
- Beijing Engineering and Technology Research Centre of Food Additives, School of Food and Health, Beijing Technology and Business University, Beijing 100048, China
- College of Food Science and Nutritional Engineering, China Agricultural University, Beijing 100083, China
| | - Yang Li
- College of Food Science and Nutritional Engineering, China Agricultural University, Beijing 100083, China
- COFCO Nutrition and Health Research Institute, Beijing 102209, China
| | - Shiran Wang
- College of Food Science and Nutritional Engineering, China Agricultural University, Beijing 100083, China
| | - Yan Li
- Beijing Engineering and Technology Research Centre of Food Additives, School of Food and Health, Beijing Technology and Business University, Beijing 100048, China
| | - Liebing Zhang
- College of Food Science and Nutritional Engineering, China Agricultural University, Beijing 100083, China
| | - Jianguo Yan
- Ningxia Saishang Dairy Industry, Yinchuan 750000, China
| | - Yanfang Sun
- Ningxia Saishang Dairy Industry, Yinchuan 750000, China
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Breunig S, Crooijmans RPMA, Bovenhuis H, Hettinga K, Bijl E. Linking variation in the casein fraction and salt composition to casein micelle size in milk of Dutch dairy goats. J Dairy Sci 2024; 107:6474-6486. [PMID: 38754827 DOI: 10.3168/jds.2023-24548] [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: 12/14/2023] [Accepted: 03/26/2024] [Indexed: 05/18/2024]
Abstract
The casein composition, salt composition, and micelle size varies substantially between milk samples of individual animals. In goats, the links between those casein characteristics are unknown and could provide useful insights into goat casein micelle structure. In this study, the casein and salt composition of 42 individual Dutch goats from 17 farms was studied and linked to casein micelle size. Micelle size, the proportions of individual caseins, and protein content were associated with one another. Milk with smaller casein micelles was higher in protein content, salt content, and proportion of αs1-CN, but lower in αs2-CN and β-CN. The higher salt content in milk with small casein micelles was mainly attributed to a higher protein content, but changes in casein composition might additionally contribute to differences in mineralization. The nonsedimentable casein content in goat milk correlated with nonsedimentable fractions of β-CN and κ-CN and was independent of micelle size. Between large and small casein micelles, goat casein micelles showed more differences in casein and salt composition than bovine micelles, indicating differences in internal structure. Nevertheless, the casein mineralization in goat milk was similar to casein mineralization in bovine milk, indicating that mineralization of casein micelles follows a general principle. These results can help to better understand how composition and micelle structure in goat milk are related to each other, which may be useful to improve processing and product properties of goat milk in the future.
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Affiliation(s)
- Swantje Breunig
- Food Quality and Design, Wageningen University and Research, 6700 AA Wageningen, the Netherlands; Ausnutria B.V., 8002 LB Zwolle, the Netherlands.
| | - Richard P M A Crooijmans
- Animal Breeding and Genomics, Wageningen University and Research, 6700 AH Wageningen, the Netherlands
| | - Henk Bovenhuis
- Animal Breeding and Genomics, Wageningen University and Research, 6700 AH Wageningen, the Netherlands
| | - Kasper Hettinga
- Food Quality and Design, Wageningen University and Research, 6700 AA Wageningen, the Netherlands
| | - Etske Bijl
- Food Quality and Design, Wageningen University and Research, 6700 AA Wageningen, the Netherlands
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Chen X, Fan R, Wang Y, Munir M, Li C, Wang C, Hou Z, Zhang G, Liu L, He J. Bovine milk β-casein: Structure, properties, isolation, and targeted application of isolated products. Compr Rev Food Sci Food Saf 2024; 23:e13311. [PMID: 38445543 DOI: 10.1111/1541-4337.13311] [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: 11/16/2023] [Revised: 01/31/2024] [Accepted: 02/02/2024] [Indexed: 03/07/2024]
Abstract
β-Casein, an important protein found in bovine milk, has significant potential for application in the food, pharmaceutical, and other related industries. This review first introduces the composition, structure, and functional properties of β-casein. It then reviews the techniques for isolating β-casein. Chemical and enzymatic isolation methods result in inactivity of β-casein and other components in the milk, and it is difficult to control the production conditions, limiting the utilization range of products. Physical technology not only achieves high product purity and activity but also effectively preserves the biological activity of the components. The isolated β-casein needs to be utilized effectively and efficiently for various purity products in order to achieve optimal targeted application. Bovine β-casein, which has a purity higher than or close to that of breast β-casein, can be used in infant formulas. This is achieved by modifying its structure through dephosphorylation, resulting in a formula that closely mimics the composition of breast milk. Bovine β-casein, which is lower in purity than breast β-casein, can be maximized for the preparation of functional peptides and for use as natural carriers. The remaining byproducts can be utilized as food ingredients, emulsifiers, and carriers for encapsulating and delivering active substances. Thus, realizing the intensive processing and utilization of bovine β-casein isolation. This review can promote the industrial production process of β-casein, which is beneficial for the sustainable development of β-casein as a food and material. It also provides valuable insights for the development of other active substances in milk.
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Affiliation(s)
- Xiaoqian Chen
- Key Laboratory of Dairy Science, College of Food Science, Northeast Agricultural University, Harbin, China
- Heilongjiang Green Food Science Research Institute, Harbin, China
| | - Rui Fan
- Key Laboratory of Dairy Science, College of Food Science, Northeast Agricultural University, Harbin, China
- Heilongjiang Green Food Science Research Institute, Harbin, China
| | - Yuanbin Wang
- Key Laboratory of Dairy Science, College of Food Science, Northeast Agricultural University, Harbin, China
- Heilongjiang Green Food Science Research Institute, Harbin, China
| | - Maliha Munir
- Key Laboratory of Dairy Science, College of Food Science, Northeast Agricultural University, Harbin, China
- Heilongjiang Green Food Science Research Institute, Harbin, China
| | - Chun Li
- Key Laboratory of Dairy Science, College of Food Science, Northeast Agricultural University, Harbin, China
- Heilongjiang Green Food Science Research Institute, Harbin, China
| | - Caiyun Wang
- Inner Mongolia Dairy Technology Research Institute Co., Ltd., Hohhot, China
- Inner Mongolia Yili Industrial Group, Co., Ltd., Hohhot, China
- National Center of Technology Innovation for Dairy, Hohhot, China
| | - Zhanqun Hou
- Inner Mongolia Dairy Technology Research Institute Co., Ltd., Hohhot, China
- Inner Mongolia Yili Industrial Group, Co., Ltd., Hohhot, China
- National Center of Technology Innovation for Dairy, Hohhot, China
| | - Guofang Zhang
- Key Laboratory of Dairy Science, College of Food Science, Northeast Agricultural University, Harbin, China
- Heilongjiang Green Food Science Research Institute, Harbin, China
| | - Libo Liu
- Key Laboratory of Dairy Science, College of Food Science, Northeast Agricultural University, Harbin, China
- Heilongjiang Green Food Science Research Institute, Harbin, China
| | - Jian He
- Inner Mongolia Dairy Technology Research Institute Co., Ltd., Hohhot, China
- Inner Mongolia Yili Industrial Group, Co., Ltd., Hohhot, China
- National Center of Technology Innovation for Dairy, Hohhot, China
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Hu J, Liang Y, Huang X, Chen G, Liu D, Chen Z, Fang Z, Chen X. Thermal Stability Improvement of Core Material via High Internal Phase Emulsion Gels. Polymers (Basel) 2023; 15:4272. [PMID: 37959953 PMCID: PMC10647363 DOI: 10.3390/polym15214272] [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: 09/28/2023] [Revised: 10/26/2023] [Accepted: 10/27/2023] [Indexed: 11/15/2023] Open
Abstract
Biocompatible particle-stabilized emulsions have gained significant attention in the biomedical industry. In this study, we employed dynamic high-pressure microfluidization (HPM) to prepare a biocompatible particle emulsion, which effectively enhances the thermal stability of core materials without the addition of any chemical additives. The results demonstrate that the HPM-treated particle-stabilized emulsion forms an interface membrane with high expansion and viscoelastic properties, thus preventing core material agglomeration at elevated temperatures. Furthermore, the particle concentration used for constructing the emulsion gel network significantly impacts the overall strength and stability of the material while possessing the ability to inhibit oxidation of the thermosensitive core material. This investigation explores the influence of particle concentration on the stability of particle-stabilized emulsion gels, thereby providing valuable insights for the design, improvement, and practical applications of innovative clean label emulsions, particularly in the embedding and delivery of thermosensitive core materials.
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Affiliation(s)
- Jinhua Hu
- State Key Laboratory of Food Science and Resources, Jiangnan University, Wuxi 214122, China; (Y.L.); (X.H.); (G.C.); (D.L.); (Z.C.)
- School of Food Science and Technology, Jiangnan University, Wuxi 214122, China
| | - Yongxue Liang
- State Key Laboratory of Food Science and Resources, Jiangnan University, Wuxi 214122, China; (Y.L.); (X.H.); (G.C.); (D.L.); (Z.C.)
- School of Food Science and Technology, Jiangnan University, Wuxi 214122, China
| | - Xueyao Huang
- State Key Laboratory of Food Science and Resources, Jiangnan University, Wuxi 214122, China; (Y.L.); (X.H.); (G.C.); (D.L.); (Z.C.)
- School of Food Science and Technology, Jiangnan University, Wuxi 214122, China
| | - Guangxue Chen
- State Key Laboratory of Food Science and Resources, Jiangnan University, Wuxi 214122, China; (Y.L.); (X.H.); (G.C.); (D.L.); (Z.C.)
- School of Food Science and Technology, Jiangnan University, Wuxi 214122, China
| | - Dingrong Liu
- State Key Laboratory of Food Science and Resources, Jiangnan University, Wuxi 214122, China; (Y.L.); (X.H.); (G.C.); (D.L.); (Z.C.)
- School of Food Science and Technology, Jiangnan University, Wuxi 214122, China
| | - Zhuangzhuang Chen
- State Key Laboratory of Food Science and Resources, Jiangnan University, Wuxi 214122, China; (Y.L.); (X.H.); (G.C.); (D.L.); (Z.C.)
- School of Food Science and Technology, Jiangnan University, Wuxi 214122, China
| | - Zheng Fang
- State Key Laboratory of New Textile Materials and Advanced Processing Technology, School of Materials Science and Engineering, Wuhan Textile University, Wuhan 430200, China
| | - Xuelong Chen
- Atera Water Pte Ltd., 1 Corporation Drive, Singapore 619775, Singapore;
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Yang J, Duan Y, Zhang H, Huang F, Wan C, Cheng C, Wang L, Peng D, Deng Q. Ultrasound coupled with weak alkali cycling-induced exchange of free sulfhydryl-disulfide bond for remodeling interfacial flexibility of flaxseed protein isolates. Food Hydrocoll 2023. [DOI: 10.1016/j.foodhyd.2023.108597] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/16/2023]
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Zhou X, Sala G, Sagis LM. Structure and rheological properties of oil-water and air-water interfaces stabilized with micellar casein isolate and whey protein isolate mixtures. Food Hydrocoll 2022. [DOI: 10.1016/j.foodhyd.2022.107946] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Comprehensive identification and hydrophobic analysis of key proteins affecting foam capacity and stability during the evolution of egg white foam. Food Hydrocoll 2022. [DOI: 10.1016/j.foodhyd.2022.108033] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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