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Altay I, Nogueira Silva NF, Sloth JJ, Mohammadifar MA. Influence of acidification and re-neutralization on mineral equilibria and physicochemical properties of model cheese feed. Food Chem 2024; 445:138759. [PMID: 38367560 DOI: 10.1016/j.foodchem.2024.138759] [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: 10/30/2023] [Revised: 01/19/2024] [Accepted: 02/13/2024] [Indexed: 02/19/2024]
Abstract
Cheese feed is used as spray-dryer feed in cheese powder production, where there is growing consumer demand to eliminate calcium-chelating salts (ES). To develop ES-free feed production processes, it is essential to investigate the relationship between pH, structural changes, and mineral solubilization. This study investigated the influence of acidification and pH re-neutralization on calcium equilibria and stability of ES-free model cheese feeds. The goal was to increase protein availability by solubilizing colloidal calcium phosphate (CCP) and to assess whether CCP solubilization is reversible upon re-neutralization. The extent of acidification (to pH 4.2 or pH 4.7) significantly affected the irreversibility of calcium solubilization upon re-neutralization. Moreover, re-neutralization treatment seemed to induce changes in protein-fat interactions. Feed viscosity was mainly influenced by the final pH, rather than the re-neutralization history. These results offer new insights into the complex interplay of pH, structural modifications, mineral solubilization, and stability in cheese feed production.
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Affiliation(s)
- Ipek Altay
- Research Group for Food Production Engineering, National Food Institute, Technical University of Denmark, Søltofts Plads 227, 2800 Kongens Lyngby, Denmark
| | | | - Jens J Sloth
- Research Group for Analytical Food Chemistry, National Food Institute, Technical University of Denmark, Henrik Dams Allé 201, 2800 Kongens Lyngby, Denmark
| | - Mohammad Amin Mohammadifar
- Research Group for Food Production Engineering, National Food Institute, Technical University of Denmark, Søltofts Plads 227, 2800 Kongens Lyngby, Denmark.
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2
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Ahmadi E, Vasiljevic T, Huppertz T. Influence of Heating Temperature and pH on Acid Gelation of Micellar Calcium Phosphate-Adjusted Skim Milk. Foods 2024; 13:1724. [PMID: 38890952 PMCID: PMC11172180 DOI: 10.3390/foods13111724] [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: 05/09/2024] [Revised: 05/29/2024] [Accepted: 05/29/2024] [Indexed: 06/20/2024] Open
Abstract
Micellar calcium phosphate (MCP) plays an important role in maintaining the structure and stability of the casein micelle and its properties during processing. The objective of this study was to investigate how heating (10 min at 80 or 90 °C) at different pH levels (6.3, 6.6, 6.9, or 7.2) impacted the acid-induced gelation of MCP-adjusted milk, containing 67 (MCP67), 100 (MCP100), or 113 (MCP113) % of the original MCP content. The unheated sample MCP100 at pH 6.6 was considered the control. pH acidification to pH 4.5 at 30 °C was achieved with glucono delta-lactone while monitoring viscoelastic behaviour by small-amplitude oscillatory rheology. The partitioning of calcium and proteins between colloidal and soluble phases was also examined. In MCP-depleted skim milk samples, the concentrations of non-sedimentable caseins and whey proteins were higher compared to the control and MCP-enriched skim milk samples. The influence of MCP adjustment on gelation was dependent on pH. Acid gels from sample MCP67 exhibited the highest storage modulus (G'). At other pH levels, MCP100 resulted in the greatest G'. The pH of MCP-adjusted skim milk also impacted the gel properties after heating. Overall, this study highlights the substantial impact of MCP content on the acid gelation of milk, with a pronounced dependency of the MCP adjustment effect on pH variations.
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Affiliation(s)
- Elaheh Ahmadi
- Advanced Food Systems Research Unit, Institute for Sustainable Industries and Liveable Cities, College of Health and Biomedicine, Victoria University, Melbourne 8001, Australia (T.V.)
| | - Todor Vasiljevic
- Advanced Food Systems Research Unit, Institute for Sustainable Industries and Liveable Cities, College of Health and Biomedicine, Victoria University, Melbourne 8001, Australia (T.V.)
| | - Thom Huppertz
- Advanced Food Systems Research Unit, Institute for Sustainable Industries and Liveable Cities, College of Health and Biomedicine, Victoria University, Melbourne 8001, Australia (T.V.)
- FrieslandCampina, 3818LE Amersfoort, The Netherlands
- Food Quality & Design Group, Wageningen University and Research, 6708WH Wageningen, The Netherlands
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3
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Liao M, Li W, Peng L, Li J, Ren J, Li K, Chen F, Hu X, Liao X, Ma L, Ji J. High hydrostatic pressure induced gastrointestinal digestion behaviors of quercetin-loaded casein delivery systems under different calcium concentration. Food Chem X 2024; 21:101177. [PMID: 38434693 PMCID: PMC10904925 DOI: 10.1016/j.fochx.2024.101177] [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: 08/08/2023] [Revised: 01/17/2024] [Accepted: 02/01/2024] [Indexed: 03/05/2024] Open
Abstract
Casein micelle has a structure of outer hydrophilicity and inner hydrophobicity, its typical digestion characteristic is gastric coagulation. Based on calcium content as the key factor to control this process, high hydrostatic pressure (HHP) was firstly used to modify the micelle structure by mediating the tight connection between casein molecules themselves and with colloidal calcium, then the quercetin-loaded delivery systems were prepared. And in order to investigate the effect of exogenous calcium, calcium chloride was added for digestion. The results indicated that HHP broke the limitation of casein micelles as delivery carriers for hydrophobic components and increased the EE from 51.18 ± 3.07 % to 76.17 ± 3.41 %. During gastric digestion, higher pressure and exogenous calcium synergistically increased the clotting ability and inhibited the release of quercetin. In the small intestine, curds decomposed more slowly under higher pressure and calcium concentration, so the degradation of quercetin was effectively inhibited.
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Affiliation(s)
| | | | - Lu Peng
- College of Food Science and Nutritional Engineering, National Engineering Research Center for Fruit and Vegetable Processing, China Agricultural University, Key Lab of Fruit and Vegetable Processing, Ministry of Agriculture and Rural Affairs, Beijing 100083, China
| | - Jiahao Li
- College of Food Science and Nutritional Engineering, National Engineering Research Center for Fruit and Vegetable Processing, China Agricultural University, Key Lab of Fruit and Vegetable Processing, Ministry of Agriculture and Rural Affairs, Beijing 100083, China
| | - Jinbo Ren
- College of Food Science and Nutritional Engineering, National Engineering Research Center for Fruit and Vegetable Processing, China Agricultural University, Key Lab of Fruit and Vegetable Processing, Ministry of Agriculture and Rural Affairs, Beijing 100083, China
| | - Kaixin Li
- College of Food Science and Nutritional Engineering, National Engineering Research Center for Fruit and Vegetable Processing, China Agricultural University, Key Lab of Fruit and Vegetable Processing, Ministry of Agriculture and Rural Affairs, Beijing 100083, China
| | - Fang Chen
- College of Food Science and Nutritional Engineering, National Engineering Research Center for Fruit and Vegetable Processing, China Agricultural University, Key Lab of Fruit and Vegetable Processing, Ministry of Agriculture and Rural Affairs, Beijing 100083, China
| | - Xiaosong Hu
- College of Food Science and Nutritional Engineering, National Engineering Research Center for Fruit and Vegetable Processing, China Agricultural University, Key Lab of Fruit and Vegetable Processing, Ministry of Agriculture and Rural Affairs, Beijing 100083, China
| | - Xiaojun Liao
- College of Food Science and Nutritional Engineering, National Engineering Research Center for Fruit and Vegetable Processing, China Agricultural University, Key Lab of Fruit and Vegetable Processing, Ministry of Agriculture and Rural Affairs, Beijing 100083, China
| | - Lingjun Ma
- College of Food Science and Nutritional Engineering, National Engineering Research Center for Fruit and Vegetable Processing, China Agricultural University, Key Lab of Fruit and Vegetable Processing, Ministry of Agriculture and Rural Affairs, Beijing 100083, China
| | - Junfu Ji
- College of Food Science and Nutritional Engineering, National Engineering Research Center for Fruit and Vegetable Processing, China Agricultural University, Key Lab of Fruit and Vegetable Processing, Ministry of Agriculture and Rural Affairs, Beijing 100083, China
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4
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Wang T, Li Y, De Witte F, Rebry F, Li H, Vermeir P, Dewettinck K, Van der Meeren P. Influence of calcium concentration on the re-assembly of sodium caseinate into casein micelles and on their renneting behavior. Food Res Int 2024; 180:113991. [PMID: 38395543 DOI: 10.1016/j.foodres.2024.113991] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2023] [Revised: 12/30/2023] [Accepted: 01/05/2024] [Indexed: 02/25/2024]
Abstract
Inducing the spontaneous aggregation from casein molecules (i.e. αs1, αs2, β, and κ-casein) into re-assembled casein micelles (RCMs) through the addition of salts as an alternative to native casein micelles, has garnered increasing attention in recent years. In this investigation, re-assembled casein micelles were generated by adding varying amounts of calcium, phosphate, and citrate ions to a sodium caseinate dispersion. The formed micelles were further characterized in terms of particle size, optical density, and partitioning of calcium ions and caseins. Besides, their small-angle X-ray scattering (SAXS) profiles and renneting properties were evaluated. The observations revealed that the particle size and optical density of RCMs increased with the continuous addition of salts, while the micellar yield improved and could exceed 85 %. Moreover, the quantity of individual casein molecules that contributed to the creation of micelles was in concordance with their level of phosphorylation (i.e. αs2-casein > αs1-casein > β-casein > κ-casein). Mineral analysis results and SAXS scattering profiles confirmed that the added calcium ions acted as cross-linkers and participated in the construction of calcium phosphate nanoclusters. The renneting ability of RCMs was primarily dependent upon the colloidal calcium content per gram of micellar casein.
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Affiliation(s)
- Teng Wang
- Particle and Interfacial Technology Group (PaInT), Department of Green Chemistry and Technology, Faculty of Bioscience Engineering, Ghent University, Coupure Links 653, 9000, Gent, Belgium.
| | - Yadong Li
- Particle and Interfacial Technology Group (PaInT), Department of Green Chemistry and Technology, Faculty of Bioscience Engineering, Ghent University, Coupure Links 653, 9000, Gent, Belgium
| | - Fien De Witte
- Food Structure and Function Research Group, Department of Food Technology, Safety and Health, Faculty of Bioscience Engineering, Ghent University, Coupure Links 653, 9000, Ghent, Belgium
| | - Ferre Rebry
- Particle and Interfacial Technology Group (PaInT), Department of Green Chemistry and Technology, Faculty of Bioscience Engineering, Ghent University, Coupure Links 653, 9000, Gent, Belgium
| | - Hao Li
- Particle and Interfacial Technology Group (PaInT), Department of Green Chemistry and Technology, Faculty of Bioscience Engineering, Ghent University, Coupure Links 653, 9000, Gent, Belgium
| | - Pieter Vermeir
- Laboratory for Chemical Analysis (LCA), Department of Green Chemistry and Technology, Faculty of Bioscience Engineering, Ghent University, Coupure Links 653, 9000, Ghent, Belgium
| | - Koen Dewettinck
- Food Structure and Function Research Group, Department of Food Technology, Safety and Health, Faculty of Bioscience Engineering, Ghent University, Coupure Links 653, 9000, Ghent, Belgium
| | - Paul Van der Meeren
- Particle and Interfacial Technology Group (PaInT), Department of Green Chemistry and Technology, Faculty of Bioscience Engineering, Ghent University, Coupure Links 653, 9000, Gent, Belgium
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Ahmadi E, Markoska T, Huppertz T, Vasiljevic T. Structural Properties of Casein Micelles with Adjusted Micellar Calcium Phosphate Content. Foods 2024; 13:322. [PMID: 38275688 PMCID: PMC10815582 DOI: 10.3390/foods13020322] [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: 12/29/2023] [Revised: 01/18/2024] [Accepted: 01/18/2024] [Indexed: 01/27/2024] Open
Abstract
Micellar calcium phosphate (MCP) content of skim milk was modified by pH adjustment followed by dialysis. Turbidity, casein micelle size and partitioning of Ca and caseins between the colloidal and soluble phases of milk were determined. Protein structure was characterised by Fourier transform infrared (FTIR) spectroscopy and proton nuclear magnetic resonance (1H NMR), whereas organic and inorganic phosphorus were studied by phosphorus-31 nuclear magnetic resonance (31P NMR). The sample with the lowest MCP content (MCP7) exhibited the smallest particle size and turbidity, measuring 83 ± 8 nm and 0.08 ± 0.01 cm-1, respectively. Concentrations of soluble caseins increased with decreasing MCP levels. At ~60% MCP removal, FTIR analysis indicated a critical stage of structural rearrangement and 31P NMR analysis showed an increase in signal intensity for Ca-free Ser-P, which further increased as MCP concentration was further reduced. In conclusion, this study highlighted the importance of MCP in maintaining micellar structure and its impact on the integrity of casein micelle.
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Affiliation(s)
- Elaheh Ahmadi
- Advanced Food Systems Research Unit, Institute for Sustainable Industries and Liveable Cities, College of Sport, Health and Engineering, Victoria University, Melbourne, VIC 3001, Australia; (E.A.); (T.M.); (T.H.)
| | - Tatijana Markoska
- Advanced Food Systems Research Unit, Institute for Sustainable Industries and Liveable Cities, College of Sport, Health and Engineering, Victoria University, Melbourne, VIC 3001, Australia; (E.A.); (T.M.); (T.H.)
| | - Thom Huppertz
- Advanced Food Systems Research Unit, Institute for Sustainable Industries and Liveable Cities, College of Sport, Health and Engineering, Victoria University, Melbourne, VIC 3001, Australia; (E.A.); (T.M.); (T.H.)
- FrieslandCampina, 3818 LE Amersfoort, The Netherlands
- Food Quality and Design Group, Wageningen University and Research, 6708 WG Wageningen, The Netherlands
| | - Todor Vasiljevic
- Advanced Food Systems Research Unit, Institute for Sustainable Industries and Liveable Cities, College of Sport, Health and Engineering, Victoria University, Melbourne, VIC 3001, Australia; (E.A.); (T.M.); (T.H.)
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Kayihura JF. Structural dependence of concentrated skim milk curd on micellar restructuring. Heliyon 2024; 10:e24046. [PMID: 38230241 PMCID: PMC10789638 DOI: 10.1016/j.heliyon.2024.e24046] [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: 04/01/2023] [Revised: 11/23/2023] [Accepted: 01/02/2024] [Indexed: 01/18/2024] Open
Abstract
This study was conducted to establish an understanding of how milk concentration modulates the rennet curd structure. Rennet-induced gelation and renneting under slow acidification achieved using glucono-δ-lactone (GDL) and structural properties of reconstituted skim milk gels at two concentration levels (9 and 25 % total solids) were studied by measuring variations in (a) viscoelastic behaviour, (b) micellar size, charge density, diffusivity, and (c) hydrophobicity using dynamic rheometry, dynamic light scattering and fluorimetry, respectively. Concentrated milk showed a greater estimated hydrodynamic radius of casein micelles, lower zeta (ζ)-potential, ratio of serum to total Calcium (Ca) and charge density and increased surface hydrophobicity, all supporting the view that micellar restructuring particularly sub-particle transfer takes place and contributes to rapid gelation. Moreover, hydrophobic interactions occurred very quickly (within 5 min in combined gels, 10 min for renneting only), demonstrating their pivotal role during the flocculation stage. All gels exhibited a solid viscoelastic character as the elastic modulus (G') was greater than loss modulus (G″) while both G' and tan δ (G''/G') were frequency-dependent. Frequency sweeps classified the concentrated gels into three stiffness categories caused by the level of rennet or GDL as rigid, hard and soft, whereas an increased flow-like behaviour (high tan δ), restricted diffusion and excessive water retention revealed limited structural rearrangements (contraction & macrosyneresis) during curd ageing. Acidification increased the diffusion rate in control curd, thus, enhanced contractive rearrangements, macrosyneresis and curd strength. Findings suggest that micellar restructuring induced by milk concentration is the principal modulator of the curd structure.
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Affiliation(s)
- Joseph F. Kayihura
- Advanced Food Systems Research Unit, Institute for Sustainable Industries and Liveable Cities, College of Health and Biomedicine, Victoria University, Victoria 3030, Australia
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7
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Zhang S, Hao J, Xie Q, Pi X, Peng Z, Sun Y, Cheng J. pH-induced physiochemical and structural changes of milk proteins mixtures and its effect on foaming behavior. Int J Biol Macromol 2024; 254:127838. [PMID: 37923034 DOI: 10.1016/j.ijbiomac.2023.127838] [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: 08/17/2023] [Revised: 10/18/2023] [Accepted: 10/31/2023] [Indexed: 11/07/2023]
Abstract
Milk proteins are well known to produce aerated food due to the amphiphilicity. However, milk proteins are commonly added in blends for the desirable properties in food industry. In this study, the foaming properties of milk protein mixtures (MPM), a mixtures of whey protein isolated (WPI) and milk protein concentrate (MPC), was studied through foaming capacity (FC), foam stability (FS), and foam morphology at pH 3.0-9.0. Physiochemical, structural, surface properties, and Pearson correlation analysis were measured to gain insight into foaming behavior. Results indicated that MPM showed excellent FC (113.0-114.3 %) and FS (90.7-93.0 %) at pH 6.0-9.0, and foam displayed a smaller size and uniform distribution. MPM solutions showed smaller particles, higher solubility, and lower apparent viscosity at pH 6.0-9.0, which resulted in an increase in surface pressure and adsorption rate (Kdiff), facilitating more protein absorbed to interface. To further investigate structural changes, various spectral methods were used, in which the structure of MPM was changed with pH. Correlation analysis further suggests that Kdiff and solubility positively affect the formation of foam, while free sulfhydryl and β-sheet contributed to stabilizing foams. These findings provide valuable information on MPM as ingredients for aerated foods under acidic, neutral, and alkaline conditions.
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Affiliation(s)
- Siyu Zhang
- College of Food Science, Northeast Agricultural University, Harbin, Heilongjiang 150030, China
| | - Junli Hao
- College of Food Science, Northeast Agricultural University, Harbin, Heilongjiang 150030, China
| | - Qinggang Xie
- College of Food Science, Northeast Agricultural University, Harbin, Heilongjiang 150030, China; HeiLongJiang FeiHe Dairy Co., Ltd., Beijing 100015, China
| | - Xiaowen Pi
- College of Food Science, Northeast Agricultural University, Harbin, Heilongjiang 150030, China
| | - Zeyu Peng
- College of Food Science, Northeast Agricultural University, Harbin, Heilongjiang 150030, China
| | - Yuxue Sun
- College of Food Science, Northeast Agricultural University, Harbin, Heilongjiang 150030, China.
| | - Jianjun Cheng
- College of Food Science, Northeast Agricultural University, Harbin, Heilongjiang 150030, China.
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Atallah N, Gaudichon C, Boulier A, Baniel A, Cudennec B, Deracinois B, Ravallec R, Flahaut C, Azzout-Marniche D, Khodorova N, Chapelais M, Calvez J. Differential effects of milk proteins on amino acid digestibility, post-prandial nitrogen utilization and intestinal peptide profiles in rats. Food Res Int 2023; 169:112814. [PMID: 37254390 DOI: 10.1016/j.foodres.2023.112814] [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: 11/24/2022] [Revised: 02/15/2023] [Accepted: 04/11/2023] [Indexed: 06/01/2023]
Abstract
OBJECTIVE The aim of this study was to analyze the protein digestibility and postprandial metabolism in rats of milk protein matrices obtained by different industrial processes. MATERIAL AND METHODS The study was conducted on Wistar rats that consumed a meal containing different 15N-labeled milk proteins. Four milk matrices were tested: native micellar caseins (C1), caseins low in calcium (C2 low Ca2+), a matrix containing a ratio 63:37 of caseins and whey proteins (CW2) and whey proteins alone (W). Blood and urine were collected during the postprandial period and rats were euthanized 6 h after meal intake to collect digestive contents and organs. RESULTS Orocaecal digestibility values of amino acids ranged between 96.0 ± 0.2% and 96.6 ± 0.4% for C1-, C2 low Ca2+- and W-matrices, while this value was significantly lower for CW2 matrix (92.4 ± 0.5%). More dietary nitrogen was sequestered in the splanchnic area (intestinal mucosa and liver) as well as in plasma proteins after ingestion of W matrix, especially compared to the C1- and C2 low Ca2+-matrices. Peptidomic analysis showed that more milk protein-derived peptides were identified in the caecum of rats after the ingestion of the matrices containing caseins compared to W matrix. CONCLUSION We found that demineralization of micellar caseins did not modify its digestibility and postprandial metabolism. The low digestibility of the modified casein-to-whey ratio matrix may be ascribed to a lower accessibility of the protein to digestive enzymes due to changes in the protein structure, while the higher nitrogen splanchnic retention after ingestion of whey was probably due to the fast assimilation of its protein content. Finally, our results showed that industrial processes that modify the structure and/or composition of milk proteins influence protein digestion and utilization.
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Affiliation(s)
- Nathalie Atallah
- UMR PNCA, AgroParisTech, INRAE, Université Paris-Saclay, 91123 Palaiseau, France; Ingredia S.A. 62033 Arras Cedex, France; UMRt BioEcoAgro-INRAe 1158, Univ. Lille, Univ. Artois, Institut Charles Viollette, 59000 Lille, France
| | - Claire Gaudichon
- UMR PNCA, AgroParisTech, INRAE, Université Paris-Saclay, 91123 Palaiseau, France
| | | | | | - Benoit Cudennec
- UMRt BioEcoAgro-INRAe 1158, Univ. Lille, Univ. Artois, Institut Charles Viollette, 59000 Lille, France
| | - Barbara Deracinois
- UMRt BioEcoAgro-INRAe 1158, Univ. Lille, Univ. Artois, Institut Charles Viollette, 59000 Lille, France
| | - Rozenn Ravallec
- UMRt BioEcoAgro-INRAe 1158, Univ. Lille, Univ. Artois, Institut Charles Viollette, 59000 Lille, France
| | - Christophe Flahaut
- UMRt BioEcoAgro-INRAe 1158, Univ. Lille, Univ. Artois, Institut Charles Viollette, 59000 Lille, France
| | | | - Nadezda Khodorova
- UMR PNCA, AgroParisTech, INRAE, Université Paris-Saclay, 91123 Palaiseau, France
| | - Martin Chapelais
- UMR PNCA, AgroParisTech, INRAE, Université Paris-Saclay, 91123 Palaiseau, France
| | - Juliane Calvez
- UMR PNCA, AgroParisTech, INRAE, Université Paris-Saclay, 91123 Palaiseau, France.
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Yang Z, Cheng L, de Campo L, Gilbert EP, Mittelbach R, Luo L, Ye A, Li S, Hemar Y. Microstructural evolution during acid induced gelation of cow, goat, and sheep milk probed by time-resolved (ultra)-small angle neutron scattering. Food Hydrocoll 2023. [DOI: 10.1016/j.foodhyd.2022.108381] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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10
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Investigating the effect of diluents and fat globules on the size measurement of casein micelles by dynamic light scattering. Int Dairy J 2023. [DOI: 10.1016/j.idairyj.2023.105640] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/17/2023]
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11
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Assessment of structures in phosphocaseinate dispersions by A4F, NMR and SAXS: The impact of demineralization and heat treatment on viscosity. Food Hydrocoll 2022. [DOI: 10.1016/j.foodhyd.2022.108366] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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12
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Ultrasound-Assisted Encapsulation of Anthraquinones Extracted from Aloe-Vera Plant into Casein Micelles. Gels 2022; 8:gels8090597. [PMID: 36135309 PMCID: PMC9498315 DOI: 10.3390/gels8090597] [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: 08/14/2022] [Revised: 09/09/2022] [Accepted: 09/13/2022] [Indexed: 11/23/2022] Open
Abstract
Aloe-vera extracted anthraquinones (aloin, aloe-emodin, rhein) possess a wide range of biological activities, have poor solubility and are sensitive to processing conditions. This work investigated the ultrasound-assisted encapsulation of these extracted anthraquinones (AQ) into casein micelles (CM). The particle size and zeta potential of casein micelles loaded with aloin (CMA), aloe-emodin (CMAE), rhein (CMR) and anthraquinone powder (CMAQ) ranged between 171–179 nm and −23 to −17 mV. The AQ powder had the maximum encapsulation efficiency (EE%) (aloin 99%, aloe-emodin 98% and rhein 100%) and encapsulation yield, while the whole leaf Aloe vera gel (WLAG) had the least encapsulation efficiency. Spray-dried powder (SDP) and freeze-dried powder (FDP) of Aloe vera showed a significant increase in size and zeta potential related to superficial coating instead of encapsulation. The significant variability in size, zeta potential and EE% were related to anthraquinone type, its binding affinity, and its ratio to CM. FTIR spectra confirmed that the structure of the casein micelle remained unchanged with the binding of anthraquinones except in casein micelles loaded with whole-leaf aloe vera gel (CMWLAG), where the structure was deformed. Based on our findings, Aloe vera extracted anthraquinones powder (AQ) possessed the best encapsulation efficiency within casein micelles without affecting its structure. Overall, this study provides new insights into developing new product formulations through better utilization of exceptional properties of casein micelles.
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14
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Effects of dairy bioactive peptides and lotus seeds/lily bulb powder on flavor and quality characteristics of goat milk yogurt. FOOD BIOSCI 2022. [DOI: 10.1016/j.fbio.2021.101510] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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15
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Calcium-Reduced Micellar Casein Concentrate-Physicochemical Properties of Powders and Functional Properties of the Dispersions. Foods 2022; 11:foods11101377. [PMID: 35626947 PMCID: PMC9141348 DOI: 10.3390/foods11101377] [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: 03/01/2022] [Revised: 04/25/2022] [Accepted: 05/06/2022] [Indexed: 11/17/2022] Open
Abstract
This study aimed to examine the physicochemical properties of 30% calcium (Ca)-reduced micellar casein 80% protein powders (RC-MCC) and the functional properties of the resultant dispersions. The calcium reduction in the micellar casein (MCC) powder was achieved by subjecting the liquid micellular casein obtained from the microfiltration of pasteurized skim milk to carbon dioxide (CO2) treatment before and during ultrafiltration. The CO2 injection was controlled to obtain a 0 and 30% reduction in calcium in the C-MCC (control) and RC-MCC powders, respectively. The MCC powders were tested for physicochemical properties such as chemical composition, particle size distribution, and bulk density. The MCC powders were reconstituted in deionized water to test the functional properties of the dispersions, i.e., solubility, viscosity, heat stability, emulsifying capacity, emulsion stability, foam capacity, and foam stability. The CO2 injection did not result in any significant differences in the composition except mineral contents, particularly calcium. The particle size and bulk density of RC-MCC powders were significantly (p < 0.05) lower than control powders. The RC-MCC powder dispersions showed increased heat stability compared to control, whereas no significant changes in viscosity and emulsification capacity were observed between the two dispersions. However, the emulsion stability and foam stability of RC-MCC dispersions were significantly lower than C-MCC dispersions. This study showed that by utilizing a novel microfiltration−CO2 injection−ultrafiltration process, 30% calcium-reduced MCC powder was commercially feasible. This research also provides a detailed understanding of the effect of calcium reduction on the functional properties of resultant MCC dispersions. It showed that calcium reduction could improve the solubility of the powders and heat stability and foam capacity of the dispersions.
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17
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Physico-chemical and functional properties of milk protein concentrates obtained using a two-stage decalcification approach. Int Dairy J 2022. [DOI: 10.1016/j.idairyj.2021.105216] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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18
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19
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Effects of quantity and source of calcium on the behavior of goat milk after heating and acidification. Lebensm Wiss Technol 2022. [DOI: 10.1016/j.lwt.2021.112535] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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20
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Zhu Q, Yuan Y, Yan B, Zhou J, Zuo J, Bai L. A new biomimetic nanozyme of hemin/graphdiyne oxide with superior peroxidase-like activity for colorimetric bioassays. Analyst 2021; 146:7284-7293. [PMID: 34749389 DOI: 10.1039/d1an01456k] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Graphdiyne oxide (GDYO) is a novel type of two-dimensional carbon allotrope nanomaterial consisting of a large conjugated system and excellent chemical stability. To date, application of GDYO as a nanozyme in biosensing has been rarely reported. In this study, a novel ultrasensitive colorimetric bioassay was constructed using a hemin/GDYO nanocomposite (H/GDYO) as a new nanozyme with superior peroxidase-like activity for the detection of H2O2 and glucose. It was discovered that H/GDYO exhibited 6-fold higher peroxidase-like activity than pure hemin. Catalytic kinetic analysis showed that H/GDYO had a much higher affinity for H2O2 and glucose than that of hemin. The designed colorimetric bioassay displayed excellent sensitivity for H2O2 and glucose detection with a wide linear range of 0.015-0.5 mM and 0.1-10 mM, respectively, while the limit of detection (LOD) was as low as 4.39 μM and 38 μM, respectively. Moreover, it was successfully applied for the analysis of H2O2 in milk and glucose in real human serum samples with acceptable recoveries. Importantly, the developed colorimetric bioassay shows good agreement with the results obtained from a commercial blood glucose meter. We believe that the proposed method could provide a promising prospect for medical diagnosis and biotechnology.
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Affiliation(s)
- Qiqi Zhu
- Chongqing Research Center for Pharmaceutical Engineering, College of Pharmacy, Chongqing Medical University, Chongqing 400016, PR China.
| | - Yonghua Yuan
- Research Center for Pharmacodynamic Evaluation Engineering Technology of Chongqing, College of Pharmacy, Chongqing Medical University, Chongqing 400016, PR China
| | - Bin Yan
- The Eighth Middle School of Chongqing, Chongqing 400030, PR China
| | - Jing Zhou
- Chongqing Research Center for Pharmaceutical Engineering, College of Pharmacy, Chongqing Medical University, Chongqing 400016, PR China.
| | - Jianli Zuo
- Research Center for Pharmacodynamic Evaluation Engineering Technology of Chongqing, College of Pharmacy, Chongqing Medical University, Chongqing 400016, PR China
| | - Lijuan Bai
- Chongqing Research Center for Pharmaceutical Engineering, College of Pharmacy, Chongqing Medical University, Chongqing 400016, PR China.
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21
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Sadiq U, Gill H, Chandrapala J. Casein Micelles as an Emerging Delivery System for Bioactive Food Components. Foods 2021; 10:foods10081965. [PMID: 34441743 PMCID: PMC8392355 DOI: 10.3390/foods10081965] [Citation(s) in RCA: 37] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2021] [Revised: 08/18/2021] [Accepted: 08/20/2021] [Indexed: 12/18/2022] Open
Abstract
Bioactive food components have potential health benefits but are highly susceptible for degradation under adverse conditions such as light, pH, temperature and oxygen. Furthermore, they are known to have poor solubilities, low stabilities and low bioavailabilities in the gastrointestinal tract. Hence, technologies that can retain, protect and enable their targeted delivery are significant to the food industry. Amongst these, microencapsulation of bioactives has emerged as a promising technology. The present review evaluates the potential use of casein micelles (CMs) as a bioactive delivery system. The review discusses in depth how physicochemical and techno-functional properties of CMs can be modified by secondary processing parameters in making them a choice for the delivery of food bioactives in functional foods. CMs are an assembly of four types of caseins, (αs1, αs2, β and κ casein) with calcium phosphate. They possess hydrophobic and hydrophilic properties that make them ideal for encapsulation of food bioactives. In addition, CMs have a self-assembling nature to incorporate bioactives, remarkable surface activity to stabilise emulsions and the ability to bind hydrophobic components when heated. Moreover, CMs can act as natural hydrogels to encapsulate minerals, bind with polymers to form nano capsules and possess pH swelling behaviour for targeted and controlled release of bioactives in the GI tract. Although numerous novel advancements of employing CMs as an effective delivery have been reported in recent years, more comprehensive studies are required to increase the understanding of how variation in structural properties of CMs be utilised to deliver bioactives with different physical, chemical and structural properties.
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22
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The heterogeneous substructure of casein micelles evidenced by SAXS and NMR in demineralized samples. Food Hydrocoll 2021. [DOI: 10.1016/j.foodhyd.2021.106653] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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23
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Foaming properties of different forms of caseins in aqueous systems. JOURNAL OF FOOD MEASUREMENT AND CHARACTERIZATION 2021. [DOI: 10.1007/s11694-021-00824-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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24
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Lie-Piang A, Leeman M, Castro A, Börjesson E, Nilsson L. Revisiting the dynamics of proteins during milk powder hydration using asymmetric flow field-flow fractionation (AF4). Curr Res Food Sci 2021; 4:83-92. [PMID: 33733238 PMCID: PMC7941045 DOI: 10.1016/j.crfs.2021.02.004] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2020] [Revised: 02/11/2021] [Accepted: 02/14/2021] [Indexed: 11/30/2022] Open
Abstract
The dynamics of β-casein and casein micelles in the reconstitution of skim milk were revisited in this study. β-casein migrates into casein micelles upon an increase in temperatures due to an increase in the hydrophobic effect and lower calcium-phosphate cluster solubility. This process can be reversed upon cooling. These phenomena are well known in fresh milk and are not yet clearly established for reconstituted milk powder. As milk powder is commonly used as a functional ingredient in food products, it is of interest to investigate the migration of casein micelle β-casein to and from the serum phase in reconstituted milk. This study aimed to use asymmetrical flow field flow fractionation (AF4) in combination with various detectors to revisit the dynamics of β-casein when reconstituting skim milk at different temperatures. Fluorescence-labelled β-casein was added to fresh and reconstituted skim milk and rapid transport of β-casein into the outer shell of the casein micelles could be observed already after 5 min of reconstitution at 50 °C. This process stabilized after approximately 5 h, which indicates that an equilibrium of β-casein between the serum and the micellar phase was reached. Similar results were found for fresh milk. The apparent density of the casein micelles in the skim milk samples was also found to increase during reconstitution at 50 °C. During cold reconstitution of milk powders, the migration of β-casein to the serum was not observed. The results suggest that β-casein was already present in the serum phase upon reconstitution at 6 °C. When a sample was reconstituted for 180 min at 50 °C, the migration of β-casein back into the serum was observed upon cooling the same sample to 6 °C. The size of casein micelles in reconstituted milk at 6 °C was larger compared to reconstitution at 50 °C. With AF4 and the multi-detector approach, the change in concentration and size of casein micelles can be readily investigated and the migration of β-casein can be tracked simultaneously. Therefore, the method is a valuable tool for studies of the properties and changes in various milk samples.
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Affiliation(s)
- Anouk Lie-Piang
- Tetra Pak Processing Equipment, Ruben Rausings Gata, SE-221 86, Lund, Sweden
| | - Mats Leeman
- SOLVE Research and Consultancy AB, Medicon Village, SE-223 81, Lund, Sweden
| | - Alejandra Castro
- SOLVE Research and Consultancy AB, Medicon Village, SE-223 81, Lund, Sweden
| | - Erik Börjesson
- Tetra Pak Processing Equipment, Ruben Rausings Gata, SE-221 86, Lund, Sweden
| | - Lars Nilsson
- Department of Food Technology, Engineering and Nutrition, Lund University, Getingevägen 60, 221 00, Lund, Sweden
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Zhang Y, Ren F, Wang P, Liang Q, Peng Y, Song L, Wen P. The influence of yak casein micelle size on rennet-induced coagulation properties. JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE 2021; 101:327-333. [PMID: 32629541 DOI: 10.1002/jsfa.10647] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/04/2020] [Revised: 05/24/2020] [Accepted: 07/06/2020] [Indexed: 06/11/2023]
Abstract
BACKGROUND Yak milk formed stronger rennet-induced gels if the milk contained smalled casein micelles and a higher concentration of calcium. Also casein gels could formed after a shorter incubation time if the milk contained smalled casein micelles. The objective of this study was to estimate the importance of yak casein micelle size on rennet-induced coagulation properties. RESULTS Three fractions of different-sized, undamaged casein micelles (Ф112.17 ± 0.83 nm, Ф207.13 ± 0.59 nm and Ф269.37 ± 2.89 nm) were obtained by ultracentrifugation. The smallest casein micelles had the highest concentrations of calcium (803.21 ± 8.49 mM), phosphate (445.52 ± 10.66 mM), and κ-casein/total casein (19.45%). Rheological analyses determined the optimal gelation times of small, medium, and large casein micelles to be 9.5 ± 0.5, 10.8 ± 0.5, and 13.3 ± 0.2 min, respectively. Higher κ-casein concentration in the small casein micelles appeared to facilitate their shorter incubation time. Both the faster caseinomacropeptide (CMP) release rate and rennet-induced aggregation rate of small casein micelles contributed to a faster change in turbidity. Furthermore, small casein micelles had the highest elastic modulus (G', 73.21 ± 4.5 Pa) 60 min after the addition of rennet. This was consistent with micro-photographs, which showed that small casein micelles could form a more homogeneous gel, which had smaller pore sizes. Trial cheese manufacture verified that yak cheese containing small casein micelles, formed curd faster and the cheese had higher texture profile analysis (TPA) values for hardness, cohesiveness, and springiness. CONCLUSION This is important information for the optimization of yak cheese industrial production. © 2020 Society of Chemical Industry.
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Affiliation(s)
- Yan Zhang
- College of Food Science and Engineering, Gansu Agricultural University, Lanzhou, China
- College of Food Science & Nutritional Engineering, China Agricultural University, Beijing, China
| | - Fazheng Ren
- College of Food Science & Nutritional Engineering, China Agricultural University, Beijing, China
| | - Pengjie Wang
- College of Food Science & Nutritional Engineering, China Agricultural University, Beijing, China
| | - Qi Liang
- College of Food Science and Engineering, Gansu Agricultural University, Lanzhou, China
| | - Yun Peng
- Treasure of Plateau Yak Dairy Co., Ltd, Lhasa, China
| | - Li Song
- Gansu Hualing Biotechnology Research Center, Lanzhou, China
| | - Pengcheng Wen
- College of Food Science and Engineering, Gansu Agricultural University, Lanzhou, China
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26
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İnce Coşkun AE, Özdestan Ocak Ö. Foaming behavior of colloidal whey protein isolate micro-particle dispersions. Colloids Surf A Physicochem Eng Asp 2021. [DOI: 10.1016/j.colsurfa.2020.125660] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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27
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Nogueira MH, Ben-Harb S, Schmutz M, Doumert B, Nasser S, Derensy A, Karoui R, Delaplace G, Peixoto PP. Multiscale quantitative characterization of demineralized casein micelles: How the partial excision of nano-clusters leads to the aggregation during rehydration. Food Hydrocoll 2020. [DOI: 10.1016/j.foodhyd.2020.105778] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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28
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Lazzaro F, Bouchoux A, Raynes J, Williams R, Ong L, Hanssen E, Lechevalier V, Pezennec S, Cho HJ, Logan A, Gras S, Gaucheron F. Tailoring the structure of casein micelles through a multifactorial approach to manipulate rennet coagulation properties. Food Hydrocoll 2020. [DOI: 10.1016/j.foodhyd.2019.105414] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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29
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Li Q, Zhao Z. Acid and rennet-induced coagulation behavior of casein micelles with modified structure. Food Chem 2019; 291:231-238. [PMID: 31006464 DOI: 10.1016/j.foodchem.2019.04.028] [Citation(s) in RCA: 50] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2019] [Revised: 04/02/2019] [Accepted: 04/06/2019] [Indexed: 01/20/2023]
Affiliation(s)
- Quanyang Li
- College of Light Industry and Food Engineering, Guangxi University, Nanning 530004, China
| | - Zhengtao Zhao
- College of Light Industry and Food Engineering, Guangxi University, Nanning 530004, China.
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30
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Zhang Y, Li Y, Wang P, Liang Q, Zhang Y, Ren F. The factors influencing rennet-induced coagulation properties of yak milk: The importance of micellar calcium during gelation. Lebensm Wiss Technol 2019. [DOI: 10.1016/j.lwt.2019.05.015] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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31
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Ma X, Qiao S, Sun H, Su R, Sun C, Zhang M. Development of Structure-Switching Aptamers for Kanamycin Detection Based on Fluorescence Resonance Energy Transfer. Front Chem 2019; 7:29. [PMID: 30792976 PMCID: PMC6374352 DOI: 10.3389/fchem.2019.00029] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2018] [Accepted: 01/11/2019] [Indexed: 12/21/2022] Open
Abstract
The structure-switching aptamers are designed for the simple and rapid detection of kanamycin based on the signal transduction principle of fluorescence resonance energy transfer (FRET). The structure switch is composed of kanamycin-binding aptamers and the complementary strands, respectively labeled with fluorophore and quencher, denoted as FDNA and QDNA. In the absence of kanamycin, FDNA and QDNA form the double helix structure through the complementary pairing of bases. The fluorophore and the quencher are brought into close proximity, which results in the fluorescence quenching because of the FRET mechanism. In the presence of kanamycin, the FDNA specifically bind to the target due to the high affinity of aptamers, and the QDNA are dissociated. The specific recognition between aptamers and kanamycin will obstruct the formation of structure switch and reduce the efficiency of FRET between FDNA and QDNA, thus leading to the fluorescence enhancement. Therefore, based on the structure-switching aptamers, a simple fluorescent assay for rapid detection of kanamycin was developed. Under optimal conditions, there was a good linear relationship between kanamycin concentration and the fluorescence signal recovery. The linear range of this method in milk samples was 100-600 nM with the detection limit of 13.52 nM (3σ), which is well below the maximum residue limit (MRL) of kanamycin in milk. This method shows excellent selectivity for kanamycin over the other common antibiotics. The structure-switching aptamers have been successfully applied to the detection of kanamycin spiked in milk samples with the satisfying recoveries between 101.3 and 109.1%, which is well-consistent with the results from LC-MS/MS. Due to the outstanding advantages of facile operation, rapid detection, high sensitivity, excellent specificity, and low cost, the application and extension of this strategy for rapid determination of antibiotics in food samples may greatly improve the efficiency in food safety and quality supervision.
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Affiliation(s)
- Xinyue Ma
- Department of Food Quality and Safety, College of Food Science and Engineering, Jilin University, Changchun, China
| | - Shangna Qiao
- Department of Food Quality and Safety, College of Food Science and Engineering, Jilin University, Changchun, China
| | - Hongjing Sun
- Department of Food Quality and Safety, College of Food Science and Engineering, Jilin University, Changchun, China
| | - Ruifang Su
- Department of Food Quality and Safety, College of Food Science and Engineering, Jilin University, Changchun, China
| | - Chunyan Sun
- Department of Food Quality and Safety, College of Food Science and Engineering, Jilin University, Changchun, China
| | - Mingdi Zhang
- Department of Food Science and Engineering, College of Food Science and Engineering, Jilin University, Changchun, China
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32
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Effects of skim milk pre-acidification and retentate pH-restoration on spray-drying performance, physico-chemical and functional properties of milk protein concentrates. Food Chem 2019; 272:539-548. [DOI: 10.1016/j.foodchem.2018.08.094] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2018] [Revised: 08/20/2018] [Accepted: 08/21/2018] [Indexed: 11/20/2022]
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33
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Effects of casein micellar structure on the stability of milk protein-based conjugated linoleic acid microcapsules. Food Chem 2018; 269:327-334. [DOI: 10.1016/j.foodchem.2018.07.018] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2018] [Revised: 07/02/2018] [Accepted: 07/02/2018] [Indexed: 11/20/2022]
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34
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Zhang R, Pang X, Lu J, Liu L, Zhang S, Lv J. Effect of high intensity ultrasound pretreatment on functional and structural properties of micellar casein concentrates. ULTRASONICS SONOCHEMISTRY 2018; 47:10-16. [PMID: 29908598 DOI: 10.1016/j.ultsonch.2018.04.011] [Citation(s) in RCA: 42] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/23/2018] [Revised: 04/11/2018] [Accepted: 04/21/2018] [Indexed: 05/13/2023]
Abstract
This work investigated the impact of high intensity ultrasound (HIUS) pretreatment on the functional properties and structural characteristics of micellar casein concentrate (MCC). Microfiltered casein protein retentates were treated with HIUS for 0.5, 1, 2, and 5 min prior to spray drying. The results showed that conductivity, solubility, emulsifying, gelling increased significantly as the ultrasonic time prolonged, but the change of pH value were insignificant. In addition, the structural characteristics of MCC for all samples were studied. There was an increase in surface hydrophobicity (Ho) and a reduction in particle size compared with the control (without HIUS pretreatment). The secondary structure of HIUS pretreated MCC samples changed significantly with an increase in β-sheets and random coils and a reduction in α-helix and β-turn. It can be speculated that HIUS pretreatment facilitate the change of functional properties of MCC and these changes would promote its application in food industry.
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Affiliation(s)
- Ruihua Zhang
- Institute of Food Science and Technology, Chinese Academy of Agricultural Sciences, Beijing 100193, China; Quality Inspection Center of Grain and Oil, Tianjin 300171, China
| | - Xiaoyang Pang
- Institute of Food Science and Technology, Chinese Academy of Agricultural Sciences, Beijing 100193, China
| | - Jing Lu
- Institute of Food Science and Technology, Chinese Academy of Agricultural Sciences, Beijing 100193, China
| | - Lu Liu
- Institute of Food Science and Technology, Chinese Academy of Agricultural Sciences, Beijing 100193, China
| | - Shuwen Zhang
- Institute of Food Science and Technology, Chinese Academy of Agricultural Sciences, Beijing 100193, China.
| | - Jiaping Lv
- Institute of Food Science and Technology, Chinese Academy of Agricultural Sciences, Beijing 100193, China.
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35
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Silva NFN, Casanova F, Gaucheron F, Teixeira AVNDC, da Silva GM, Minim LA, Carvalho AFD. Combined effect of transglutaminase and sodium citrate on the microstructure and rheological properties of acid milk gel. Food Hydrocoll 2018. [DOI: 10.1016/j.foodhyd.2018.03.038] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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36
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Neves ICO, de Faria JT, Vidigal MCTR, Fidelis PC, Minim VPR, Minim LA. Foaming properties of suspensions composed by β-lactoglobulin and polysaccharides, in the presence of sucrose or polyols. Colloids Surf A Physicochem Eng Asp 2018. [DOI: 10.1016/j.colsurfa.2018.04.039] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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37
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Voges JG, Felipus NC, Canabarro LDO, Knob DA, Kazama DCDS, Thaler Neto A. RELAÇÃO DA INFRAESTRUTURA DA PROPRIEDADE E ALIMENTAÇÃO DOS ANIMAIS NA OCORRÊNCIA DE LEITE INSTÁVEL NÃO ÁCIDO NO PLANALTO NORTE DE SANTA CATARINA. CIÊNCIA ANIMAL BRASILEIRA 2018. [DOI: 10.1590/1809-6891v19e-50399] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Resumo O teste do álcool é amplamente utilizado na recepção dos laticínios para a verificação da estabilidade do leite cru. O leite que não é estável no teste e não apresenta acidez elevada é definido como leite instável não ácido (LINA). A sua ocorrência tem característica multifatorial e pode estar relacionada ao manejo nutricional inadequado. Este estudo objetivou avaliar a influência da infraestrutura da propriedade e da alimentação dos animais sobre a ocorrência de LINA. A infraestrutura foi caracterizada através de questionário guia semiestruturado. Analisou-se a composição centesimal do leite das propriedades, resistência ao teste do álcool, acidez titulável e o pH. Foram consideradas LINA as amostras que precipitaram em concentração de álcool menor ou igual a 72%, com acidez e pH normais. Nos alimentos coletados, determinou-se o teor de fibra em detergente neutro. Os dados foram avaliados através de análise fatorial e de agrupamento utilizando o pacote estatístico SAS. O uso de suplementos alimentares volumosos e concentrados, com consequente melhoria da produtividade animal e maior teor de lactose no leite foi relacionado com menor ocorrência de LINA nas condições estudadas. A ocorrência de LINA apresentou pouca relação com a infraestrutura das propriedades e com a estação do ano.
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38
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Yang M, Zhang G, Yang J, Sun D, Wen P, Zhang W. Effect of pH on dissociation of casein micelles in yak skim milk. J Dairy Sci 2018; 101:2998-3007. [DOI: 10.3168/jds.2017-13653] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2017] [Accepted: 11/26/2017] [Indexed: 11/19/2022]
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39
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40
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Size Separation Techniques for the Characterisation of Cross-Linked Casein: A Review of Methods and Their Applications. SEPARATIONS 2018. [DOI: 10.3390/separations5010014] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
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41
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Chen M, Feijen S, Sala G, Meinders M, van Valenberg H, van Hooijdonk A, van der Linden E. Foam stabilized by large casein micelle aggregates: The effect of aggregate number in foam lamella. Food Hydrocoll 2018. [DOI: 10.1016/j.foodhyd.2017.08.026] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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42
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Liu D, Li J, Zhang J, Liu X, Wang M, Hemar Y, Regenstein JM, Zhou P. Effect of partial acidification on the ultrafiltration and diafiltration of skim milk: Physico-chemical properties of the resulting milk protein concentrates. J FOOD ENG 2017. [DOI: 10.1016/j.jfoodeng.2017.05.019] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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43
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Biochemical and physico-chemical changes of skim milk during acidification with glucono- δ -lactone and hydrogen chloride. Food Hydrocoll 2017. [DOI: 10.1016/j.foodhyd.2016.12.030] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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44
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Sadat A, Ezzatpanah H, Bakhoda H. Solubility and structure of milk powders manufactured with the addition of disodium phosphate and tetrasodium pyrophosphate mixtures. INTERNATIONAL JOURNAL OF FOOD PROPERTIES 2017. [DOI: 10.1080/10942912.2016.1247272] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Affiliation(s)
- A. Sadat
- Faculty of Food Science and Technology, Science and Research Branch, Islamic Azad University, Tehran, Iran
| | - H. Ezzatpanah
- Faculty of Food Science and Technology, Science and Research Branch, Islamic Azad University, Tehran, Iran
| | - H. Bakhoda
- Faculty of Agriculture and Natural Resources, Science and Research Branch, Islamic Azad University, Tehran, Iran
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45
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Lazzaro F, Saint-Jalmes A, Violleau F, Lopez C, Gaucher-Delmas M, Madec MN, Beaucher E, Gaucheron F. Gradual disaggregation of the casein micelle improves its emulsifying capacity and decreases the stability of dairy emulsions. Food Hydrocoll 2017. [DOI: 10.1016/j.foodhyd.2016.08.037] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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46
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Thomar P, Gonzalez-Jordan A, Dittmer J, Nicolai T. Effect of orthophosphate and calcium on the self assembly of concentrated sodium caseinate solutions. Int Dairy J 2017. [DOI: 10.1016/j.idairyj.2016.08.010] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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47
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Dombrowski J, Mattejat C, Kulozik U. Correlation between surface activity and foaming properties of individual milk proteins in dependence of solvent composition. Int Dairy J 2016. [DOI: 10.1016/j.idairyj.2016.05.006] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Zhao Z, Corredig M. Colloidal properties of casein micelles suspensions as a function of pH during concentration by osmotic stressing. Food Hydrocoll 2016. [DOI: 10.1016/j.foodhyd.2016.04.016] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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Effect of calcium sequestration by ion-exchange treatment on the dissociation of casein micelles in model milk protein concentrates. Food Hydrocoll 2016. [DOI: 10.1016/j.foodhyd.2016.03.026] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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