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Xu H, Yang L, Xie P, Zhou Q, Chen Y, Karrar E, Qi H, Lin R, Zhu Y, Jin J, Jin Q, Wang X. Static stability of partially crystalline emulsions: Impacts of carrageenan and its blends with xanthan gum and/or guar gum. Int J Biol Macromol 2022; 223:307-315. [PMID: 36336159 DOI: 10.1016/j.ijbiomac.2022.10.264] [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: 08/30/2022] [Revised: 10/10/2022] [Accepted: 10/30/2022] [Indexed: 11/06/2022]
Abstract
In the present study, four different combinations of gums, including carrageenan (CG), its binary blends with xanthan gum (XG) or guar gum (GG) in equal ratios, and its ternary blends with XG and GG in three equal ratios, were involved into making partially crystalline emulsions (PCEs), respectively. The freshly prepared emulsions were systematically characterized by rheological property, particle size distribution, microscopic morphology, interfacial property, and intermolecular interactions, and their emulsion stabilities were further evaluated using multiple light scattering technique and storage test. All PCEs stabilized by gum blends (CG + XG, CG + GG, and CG + XG + GG) obtained decreased apparent viscosities at 0.01 s-1 (10.12-25.32 Pa·s), particle sizes (3.12-4.06 μm), as well as interfacial protein concentrations (22.60-27.01 mg/m2), which were much lower than those with single CG (35.98 Pa·s, 6.72 μm, and 47.74 mg/m2, respectively). The microscopic morphology showed that blending CG with XG and/or GG contributed to formation of firmer three-dimensional matrix, thereby preventing the aggregation of fat droplets. Inclusion of XG and/or GG also significantly reduced contribution of hydrophobic interactions from 0.72 to 0.24-0.44 mg/mL. Both multiple light scattering and storage test revealed that emulsion instabilities were mainly manifested as a clarification at the bottom and an agglomeration at the top. PCE-CG + XG + GG exhibited superior stability with low creaming index (6.20 %) and viscosity (1180.0 mPa·s) after three months of storage. The research aims to evaluate the effects of CG and its blends with XG and GG on stability of PCEs, and the results potentially provide valuable information for manufacture of stable PCE foods.
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Affiliation(s)
- Hua Xu
- State Key Laboratory of Food Science and Technology, International Joint Research Laboratory for Lipid Nutrition and Safety, School of Food Science and Technology, Jiangnan University, Wuxi 214122, China
| | - Lan Yang
- Key Laboratory of Dairy Biotechnology and Engineering, Ministry of Education, Key Laboratory of Dairy Products Processing, Ministry of Agriculture, Inner Mongolia Agricultural University, Huhhot 010018, PR China
| | - Pengkai Xie
- State Key Laboratory of Food Science and Technology, International Joint Research Laboratory for Lipid Nutrition and Safety, School of Food Science and Technology, Jiangnan University, Wuxi 214122, China
| | - Qinying Zhou
- State Key Laboratory of Food Science and Technology, International Joint Research Laboratory for Lipid Nutrition and Safety, School of Food Science and Technology, Jiangnan University, Wuxi 214122, China
| | - Yuhang Chen
- State Key Laboratory of Food Science and Technology, International Joint Research Laboratory for Lipid Nutrition and Safety, School of Food Science and Technology, Jiangnan University, Wuxi 214122, China
| | - Emad Karrar
- State Key Laboratory of Food Science and Technology, International Joint Research Laboratory for Lipid Nutrition and Safety, School of Food Science and Technology, Jiangnan University, Wuxi 214122, China; Department of Food Engineering, Faculty of Engineering and Technology, University of Gezira, Wad Medani, Sudan
| | - Huifang Qi
- State Key Laboratory of Food Science and Technology, International Joint Research Laboratory for Lipid Nutrition and Safety, School of Food Science and Technology, Jiangnan University, Wuxi 214122, China
| | - Ruixue Lin
- State Key Laboratory of Food Science and Technology, International Joint Research Laboratory for Lipid Nutrition and Safety, School of Food Science and Technology, Jiangnan University, Wuxi 214122, China
| | - Yun Zhu
- State Key Laboratory of Food Science and Technology, International Joint Research Laboratory for Lipid Nutrition and Safety, School of Food Science and Technology, Jiangnan University, Wuxi 214122, China
| | - Jun Jin
- State Key Laboratory of Food Science and Technology, International Joint Research Laboratory for Lipid Nutrition and Safety, School of Food Science and Technology, Jiangnan University, Wuxi 214122, China.
| | - Qingzhe Jin
- State Key Laboratory of Food Science and Technology, International Joint Research Laboratory for Lipid Nutrition and Safety, School of Food Science and Technology, Jiangnan University, Wuxi 214122, China
| | - Xingguo Wang
- State Key Laboratory of Food Science and Technology, International Joint Research Laboratory for Lipid Nutrition and Safety, School of Food Science and Technology, Jiangnan University, Wuxi 214122, China.
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2
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Huang X, Li T, Li S. Encapsulation of vitexin-rhamnoside based on zein/pectin nanoparticles improved its stability and bioavailability. Curr Res Food Sci 2022; 6:100419. [PMID: 36582445 PMCID: PMC9792296 DOI: 10.1016/j.crfs.2022.100419] [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: 09/14/2022] [Revised: 12/15/2022] [Accepted: 12/16/2022] [Indexed: 12/23/2022] Open
Abstract
To improve the solubility, stability, and bioavailability of vitexin-rhamnoside (VR) isolated from hawthorn, it was encapsulated by the zein-pectin nanoparticles system. When the mass ratio of zein to pectin was 1:4, the particle size of nanoparticles was 222.7 nm, and the encapsulation efficiency of VR was 67%. Analysis with the scanning electron microscope (SEM), fourier transform infrared spectroscopy (FTIR) and atomic force microscopy (AFM) revealed that the zein-VR-pectin nanoparticles were spherical and uniformly distributed. The hydrogen bonding and electrostatic interactions were the main forces to assemble the nanoparticles. The nanoparticle had good stability at pH 3-8.5 with particle sizes ranging from 234 to 251 nm, and the nanoparticles were able to resist the relatively lower ionic strength. In vitro simulated digestion and rat in vivo intestinal perfusion experiments showed that the nanoparticles exhibited significant slow-release properties and the highest absorption rate in the duodenal segment of rats, with Ka and Papp of 0.830 ± 0.11 and 17.004 ± 1.09. These results provided a theoretical and technological approach for the construction of flavonoids delivery system with slow-release properties and improved bioavailability.
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Affiliation(s)
| | - Tuoping Li
- Corresponding author. College of Food Science, Shenyang Agricultural University, Shenyang, 110086, China.
| | - Suhong Li
- Corresponding author. College of Food Science, Shenyang Agricultural University, Shenyang, 110086, China.
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3
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Feng Y, Yuan D, Cao C, Kong B, Sun F, Xia X, Liu Q. Changes of in vitro digestion rate and antioxidant activity of digestion products of ethanol-modified whey protein isolates. Food Hydrocoll 2022. [DOI: 10.1016/j.foodhyd.2022.107756] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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4
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Xu H, Yang L, Jin J, Zhang J, Xie P, Chen Y, Shi L, Wei W, Jin Q, Wang X. Elucidation on the destabilization mechanism of whipping creams during static storage. Food Hydrocoll 2022. [DOI: 10.1016/j.foodhyd.2022.107613] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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5
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Ethanol induced changes in structural, morphological, and functional properties of whey proteins isolates: Influence of ethanol concentration. Food Hydrocoll 2021. [DOI: 10.1016/j.foodhyd.2020.106379] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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6
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Scudino H, Silva EK, Gomes A, Guimarães JT, Cunha RL, Sant'Ana AS, Meireles MAA, Cruz AG. Ultrasound stabilization of raw milk: Microbial and enzymatic inactivation, physicochemical properties and kinetic stability. ULTRASONICS SONOCHEMISTRY 2020; 67:105185. [PMID: 32474185 DOI: 10.1016/j.ultsonch.2020.105185] [Citation(s) in RCA: 46] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/14/2019] [Revised: 05/17/2020] [Accepted: 05/20/2020] [Indexed: 06/11/2023]
Abstract
The aim of this study was to evaluate the effects of non-thermal and thermal high-intensity ultrasound (HIUS) treatment on the microbial and enzymatic inactivation, physicochemical properties, and kinetic stability of the raw milk by applying different energy densities (1, 3, 5, and 7 kJ/mL). Two HIUS treatments were evaluated based on different nominal powers, named HIUS-A and HIUS-B, using 100 W and 475 W, respectively. HIUS-A treatment was non-thermal processing while HIUS-B was a thermal treatment only for the energy densities of 5 and 7 kJ/mL since the final temperature was above 70 °C. The HIUS-B treatment showed to be more efficient. Log reductions up to 3.9 cycles of aerobic mesophilic heterotrophic bacteria (AMHB) were achieved. Significant reductions of the fat globule size, with diameters lower than 1 µm, better color parameters, and kinetic stability during the storage were observed. Also, HIUS-B treatment inactivated the alkaline phosphatase and lactoperoxidase. The HIUS-B treatment at 3 kJ/mL worked below 57 °C being considered a border temperature since it did not cause unwanted physicochemical effects. Furthermore, a microbial inactivation of 1.8 ± 0.1 log cycles of AMHB was observed. A proper inactivation of only the Alkaline phosphatase and a significant reduction of the fat globules sizes, which kept the milk kinetically stable during storage was achieved.
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Affiliation(s)
- Hugo Scudino
- Department of Food Technology, Faculty of Veterinary, Fluminense Federal University, Niterói, RJ, Brazil
| | - Eric Keven Silva
- Department of Food Engineering, Faculty of Food Engineering, University of Campinas, Campinas, SP, Brazil.
| | - Andresa Gomes
- Department of Food Engineering, Faculty of Food Engineering, University of Campinas, Campinas, SP, Brazil
| | - Jonas T Guimarães
- Department of Food Technology, Faculty of Veterinary, Fluminense Federal University, Niterói, RJ, Brazil
| | - Rosiane L Cunha
- Department of Food Engineering, Faculty of Food Engineering, University of Campinas, Campinas, SP, Brazil
| | - Anderson S Sant'Ana
- Department of Food Science, Faculty of Food Engineering, University of Campinas, Campinas, SP, Brazil
| | - M Angela A Meireles
- Department of Food Engineering, Faculty of Food Engineering, University of Campinas, Campinas, SP, Brazil
| | - Adriano G Cruz
- Department of Food, Federal Institute of Science and Technology of Rio de Janeiro, Rio de Janeiro, RJ, Brazil
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7
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Dybowska BE, Krupa‐Kozak U. Stability of oil‐in‐water emulsions as influenced by thermal treatment of whey protein dispersions or emulsions. INT J DAIRY TECHNOL 2020. [DOI: 10.1111/1471-0307.12689] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Brygida E Dybowska
- Faculty of Food Sciences Chair of Process Engineering and Equipment University of Warmia and Mazury in Olsztyn Olsztyn 10‐957Poland
| | - Urszula Krupa‐Kozak
- Department of Chemistry and Biodynamics of Food Institute of Animal Reproduction and Food Research of Polish Academy of Sciences Olsztyn 10‐748 Poland
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Fathi M, Vinceković M, Jurić S, Viskić M, Režek Jambrak A, Donsì F. Food-Grade Colloidal Systems for the Delivery of Essential Oils. FOOD REVIEWS INTERNATIONAL 2019. [DOI: 10.1080/87559129.2019.1687514] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Affiliation(s)
- Milad Fathi
- Department of Food Science and Technology, College of Agriculture, Isfahan University of Technology, Isfahan, Iran
| | - Marko Vinceković
- Department of Chemistry, Faculty of Agriculture, University of Zagreb, Zagreb, Croatia
| | - Slaven Jurić
- Department of Chemistry, Faculty of Agriculture, University of Zagreb, Zagreb, Croatia
| | - Marko Viskić
- Department of Chemistry, Faculty of Agriculture, University of Zagreb, Zagreb, Croatia
| | - Anet Režek Jambrak
- Department of Food Engineering, Faculty of Food Technology and Biotechnology, University of Zagreb, Zagreb, Croatia
| | - Francesco Donsì
- Department of Industrial Engineering, University of Salerno, Fisciano, Italy
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9
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McClements DJ, Newman E, McClements IF. Plant-based Milks: A Review of the Science Underpinning Their Design, Fabrication, and Performance. Compr Rev Food Sci Food Saf 2019; 18:2047-2067. [PMID: 33336952 DOI: 10.1111/1541-4337.12505] [Citation(s) in RCA: 143] [Impact Index Per Article: 28.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2019] [Revised: 09/17/2019] [Accepted: 09/18/2019] [Indexed: 12/20/2022]
Abstract
Many consumers are interested in decreasing their consumption of animal products, such as bovine milk, because of health, environmental, and ethical reasons. The food industry is therefore developing a range of plant-based milk alternatives. These milk substitutes should be affordable, convenient, desirable, nutritional, and sustainable. This article reviews our current understanding of the development of plant-based milks. Initially, an overview of the composition, structure, properties, and nutritional profile of conventional bovine milk is given, because the development of successful alternatives depends on understanding the characteristics of real milk. The two main production routes for fabricating plant-based milks are then highlighted: (i) disruption of plant materials (such as nuts, seeds, or legumes) to form aqueous suspensions of oil bodies; (ii) formation of oil-in-water emulsions by homogenization of oil, water, and emulsifiers. The roles of the different functional ingredients in plant-based milks are highlighted, including oils, emulsifiers, thickeners, antioxidants, minerals, and other additives. The physicochemical basis of the appearance, texture, and stability of plant-based milks is covered. The importance of the sensory attributes and gastrointestinal fate of bovine milk and plant-based alternatives is also highlighted. Finally, potential areas for future work are discussed.
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Affiliation(s)
| | - Emily Newman
- Dept. of Food Science, Univ. of Massachusetts Amherst, Amherst, MA, 01003, U.S.A
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10
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11
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Fathi M, Donsi F, McClements DJ. Protein-Based Delivery Systems for the Nanoencapsulation of Food Ingredients. Compr Rev Food Sci Food Saf 2018; 17:920-936. [PMID: 33350116 DOI: 10.1111/1541-4337.12360] [Citation(s) in RCA: 131] [Impact Index Per Article: 21.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2018] [Revised: 03/27/2018] [Accepted: 03/28/2018] [Indexed: 12/18/2022]
Abstract
Many proteins possess functional attributes that make them suitable for the encapsulation of bioactive agents, such as nutraceuticals and pharmaceuticals. This article reviews the state of the art of protein-based nanoencapsulation approaches. The physicochemical principles underlying the major techniques for the fabrication of nanoparticles, nanogels, and nanofibers from animal, botanical, and recombinant proteins are described. Protein modification approaches that can be used to extend their functionality in these nanocarrier systems are also described, including chemical, physical, and enzymatic treatments. The encapsulation, retention, protection, and release of bioactive agents in different protein-based nanocarriers are discussed. Finally, some of the major challenges in the design and fabrication of protein-based delivery systems are highlighted.
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Affiliation(s)
- Milad Fathi
- Dept. of Food Science and Technology, College of Agriculture, Isfahan Univ. of Technology, Isfahan, 84156-83111, Iran
| | - Francesco Donsi
- Dept. of Industrial Engineering, Univ. of Salerno, via Giovanni Paolo II 132, 84084, Fisciano, Italy
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12
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Siddique MAB, Maresca P, Pataro G, Ferrari G. Influence of pulsed light treatment on the aggregation of whey protein isolate. Food Res Int 2017; 99:419-425. [DOI: 10.1016/j.foodres.2017.06.003] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2017] [Revised: 05/18/2017] [Accepted: 06/02/2017] [Indexed: 12/22/2022]
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13
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Liang Y, Matia-Merino L, Gillies G, Patel H, Ye A, Golding M. The heat stability of milk protein-stabilized oil-in-water emulsions: A review. Curr Opin Colloid Interface Sci 2017. [DOI: 10.1016/j.cocis.2017.03.007] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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14
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Drapala KP, Auty MA, Mulvihill DM, O'Mahony JA. Improving thermal stability of hydrolysed whey protein-based infant formula emulsions by protein–carbohydrate conjugation. Food Res Int 2016; 88:42-51. [DOI: 10.1016/j.foodres.2016.01.028] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2015] [Revised: 01/27/2016] [Accepted: 01/30/2016] [Indexed: 10/22/2022]
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15
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Evaluation of ready-to-use SMLS and DWS devices to study acid-induced milk gel changes and syneresis. ACTA ACUST UNITED AC 2016. [DOI: 10.1007/s13594-016-0281-6] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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16
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Laiho S, Ercili-Cura D, Forssell P, Myllärinen P, Partanen R. The effect of dynamic heat treatments of native whey protein concentrate on its dispersion characteristics. Int Dairy J 2015. [DOI: 10.1016/j.idairyj.2015.05.002] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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17
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Abstract
Caprine and bovine milks have a similar overall gross composition, but vary considerably in the ratios of their casein components. These differences in colloidal casein micelles could affect directly or indirectly the heat stability of caprine and bovine milks at their natural pH. In the present work, the differences in colloidal stability of caprine and bovine milk have been studied by analysing the effect of heat treatment and skimming on precipitation of proteins. Raw and heated milk samples (70 °C/5 min, 80°C/5 min and 90°C/5 min) were centrifuged at 600, 2000, and 4500 g . The amount of precipitate formed after skimming was measured and the protein composition of both precipitates and supernatants analysed using the SDS-PAGE (sodium dodecyl sulphate polyacrylamide gel electrophoresis) and densitometry. In caprine milk, the heat treatment prior to skimming had a statistically significant effect on protein precipitation. Centrifugal force had a statistically significant effect on amount of precipitate for both milks, but the amount was 2 to 4 times higher for caprine milk. When defatting the milk for electrophoresis, a centrifugal force of 600 g appeared to be the most appropriate, in order to avoid protein loss and a possible error in the interpretation of results. Results of this study could also serve as the basis for further investigations on adjusting the skimming conditions for caprine milk in industrial dairy processing environment.
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18
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Effects of spray drying conditions and the addition of surfactants on the foaming properties of a whey protein concentrate. Lebensm Wiss Technol 2014. [DOI: 10.1016/j.lwt.2014.02.016] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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19
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Loveday SM, Ye A, Anema SG, Singh H. Tuning heat-induced colloidal aggregation of whey proteins, sodium caseinate and gum arabic: Effect of protein composition, preheating and gum arabic level. Food Res Int 2014. [DOI: 10.1016/j.foodres.2014.02.018] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
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20
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Liu DZ, Weeks MG, Dunstan DE, Martin GJ. Temperature-dependent dynamics of bovine casein micelles in the range 10–40°C. Food Chem 2013; 141:4081-6. [DOI: 10.1016/j.foodchem.2013.06.130] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2013] [Revised: 05/20/2013] [Accepted: 06/27/2013] [Indexed: 11/28/2022]
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21
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Effect of pre- and post-heat treatments on the physicochemical, microstructural and rheological properties of milk protein concentrate-stabilised oil-in-water emulsions. Int Dairy J 2013. [DOI: 10.1016/j.idairyj.2013.05.012] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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22
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Holt C, Carver JA, Ecroyd H, Thorn DC. Invited review: Caseins and the casein micelle: their biological functions, structures, and behavior in foods. J Dairy Sci 2013; 96:6127-46. [PMID: 23958008 DOI: 10.3168/jds.2013-6831] [Citation(s) in RCA: 286] [Impact Index Per Article: 26.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2013] [Accepted: 06/09/2013] [Indexed: 12/27/2022]
Abstract
A typical casein micelle contains thousands of casein molecules, most of which form thermodynamically stable complexes with nanoclusters of amorphous calcium phosphate. Like many other unfolded proteins, caseins have an actual or potential tendency to assemble into toxic amyloid fibrils, particularly at the high concentrations found in milk. Fibrils do not form in milk because an alternative aggregation pathway is followed that results in formation of the casein micelle. As a result of forming micelles, nutritious milk can be secreted and stored without causing either pathological calcification or amyloidosis of the mother's mammary tissue. The ability to sequester nanoclusters of amorphous calcium phosphate in a stable complex is not unique to caseins. It has been demonstrated using a number of noncasein secreted phosphoproteins and may be of general physiological importance in preventing calcification of other biofluids and soft tissues. Thus, competent noncasein phosphoproteins have similar patterns of phosphorylation and the same type of flexible, unfolded conformation as caseins. The ability to suppress amyloid fibril formation by forming an alternative amorphous aggregate is also not unique to caseins and underlies the action of molecular chaperones such as the small heat-shock proteins. The open structure of the protein matrix of casein micelles is fragile and easily perturbed by changes in its environment. Perturbations can cause the polypeptide chains to segregate into regions of greater and lesser density. As a result, the reliable determination of the native structure of casein micelles continues to be extremely challenging. The biological functions of caseins, such as their chaperone activity, are determined by their composition and flexible conformation and by how the casein polypeptide chains interact with each other. These same properties determine how caseins behave in the manufacture of many dairy products and how they can be used as functional ingredients in other foods.
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Affiliation(s)
- C Holt
- Institute of Molecular, Cell and Systems Biology, School of Life Sciences, University of Glasgow, Glasgow G12 8QQ, United Kingdom.
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23
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Prediction of Thermohydric History of Whey Protein Concentrate Droplets during Spray Drying. FOOD BIOPROCESS TECH 2012. [DOI: 10.1007/s11947-012-0963-x] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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24
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Kosters HA, Wierenga PA, de Vries R, Gruppen H. Characteristics and Effects of Specific Peptides on Heat-Induced Aggregation of β-Lactoglobulin. Biomacromolecules 2011; 12:2159-70. [DOI: 10.1021/bm2002285] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Hans A. Kosters
- TI Food and Nutrition, Wageningen, The Netherlands
- NIZO Food Research B.V., Ede, The Netherlands
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25
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Dybowska BE. Whey protein-stabilized emulsion properties in relation to thermal modification of the continuous phase. J FOOD ENG 2011. [DOI: 10.1016/j.jfoodeng.2010.11.030] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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26
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Keerati-u-rai M, Wang Z, Corredig M. Adsorption of Soy Protein Isolate in Oil-in-Water Emulsions: Difference Between Native and Spray Dried Isolate. J AM OIL CHEM SOC 2011. [DOI: 10.1007/s11746-011-1818-8] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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27
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Thermally-induced protein–polyphenol co-assemblies: beta lactoglobulin-based nanocomplexes as protective nanovehicles for EGCG. Food Hydrocoll 2010. [DOI: 10.1016/j.foodhyd.2010.03.015] [Citation(s) in RCA: 247] [Impact Index Per Article: 17.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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28
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Lisková K, Kelly AL, O'Brien N, Brodkorb A. Effect of denaturation of alpha-lactalbumin on the formation of BAMLET (bovine alpha-lactalbumin made lethal to tumor cells). JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2010; 58:4421-4427. [PMID: 20232795 DOI: 10.1021/jf903901j] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
A complex of alpha-lactalbumin with oleic acid, also known as HAMLET/BAMLET (human/bovine alpha-lactalbumin made lethal to tumor cells), causes apoptosis-like death in tumor cells but has little effect on healthy differentiated cells. The aim of this study was to examine whether irreversible denaturation of alpha-lactalbumin is detrimental to the formation and cytotoxicity of BAMLET. Commercial bovine holo alpha-lactalbumin (1-4% w/v) was heated at 80 degrees C for up to 100 min. With an increasing concentration of protein, the denaturation of alpha-lactalbumin proceeded faster, and aggregation became more extensive. Native and sodium dodecyl sulfate polyacrylamide gel electrophoresis showed that a high proportion of the aggregates was linked by disulfide bonds. BAMLET was prepared from native and heat-treated alpha-lactalbumin according to a previously described chromatographic method. Despite the high content of denatured and aggregated alpha-lactalbumin in the heat-treated samples, their conversion into BAMLET was not negatively affected, resulting in BAMLET complexes partly composed of covalently linked aggregates of alpha-lactalbumin. The cytotoxicity of all prepared BAMLET samples was comparable to that of the control sample prepared from native alpha-lactalbumin (LD(50) = 34.6 +/- 2.7 mumol L(-1)). It was concluded that alpha-lactalbumin is not required to be in its native conformation for the conversion into its biologically active BAMLET complex.
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Affiliation(s)
- Kamila Lisková
- Moorepark Food Research Centre, Teagasc, Moorepark, Fermoy, County Cork, Ireland
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29
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Venir E, Marchesini G, Biasutti M, Innocente N. Dynamic high pressure–induced gelation in milk protein model systems. J Dairy Sci 2010; 93:483-94. [DOI: 10.3168/jds.2009-2465] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2009] [Accepted: 10/29/2009] [Indexed: 11/19/2022]
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Bazmi A, Relkin P. Effects of processing conditions on structural and functional parameters of whipped dairy emulsions containing various fatty acid compositions. J Dairy Sci 2009; 92:3566-74. [PMID: 19620637 DOI: 10.3168/jds.2008-1652] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Affiliation(s)
- A Bazmi
- Food Science and Technology Group, Faculty of Agriculture, University of Tabriz, 51666 Tabriz, Iran.
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Guyomarc'h F, Jemin M, Le Tilly V, Madec MN, Famelart MH. Role of the heat-induced whey protein/kappa-casein complexes in the formation of acid milk gels: a kinetic study using rheology and confocal microscopy. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2009; 57:5910-5917. [PMID: 19534462 DOI: 10.1021/jf804042k] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
The effect of heat treatment of milk on the formation of acid gel was examined using confocal scanning laser microscopy and low-amplitude dynamic oscillation throughout acidification. Milk samples were reconstituted by mixing colloidal phase from unheated or preheated skim milk, labeled with rhodamine B isothiocyanate, with the aqueous phase from unheated or preheated milk, labeled with fluorescein isothiocyanate. Gels were made by acidification with glucono-delta-lactone. The presence of material from preheated milk, that is, either the colloidal or the aqueous phase or both, led to an increase in the gelation pH and in the final elastic modulus and to a more branched network with larger pores. During acidification, the heat-induced serum complexes and the casein micelles did not appear to form separated gels with time or in space. Moreover, the colocalization in the final network of serum heat-induced complexes and casein micelles is particularly well observed in the presence of an aqueous phase obtained from preheated milk. Finally, because the rheological and microstructural properties of acid gels containing either micelle-bound or serum heat-induced complexes were similar, it was suggested that the serum heat-induced complexes interacted with the casein micelles early in the course of acidification and that formation of the network did not differ significantly whether the heat-induced complexes were initially found in the aqueous phase of milk or bound to casein micelles.
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Affiliation(s)
- Fanny Guyomarc'h
- INRA, UMR1253, Science et Technologie du Lait et de l'OEuf, F-35042 Rennes, France
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32
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Gabriele D, Migliori M, Di Sanzo R, Rossi CO, Ruffolo SA, de Cindio B. Characterisation of dairy emulsions by NMR and rheological techniques. Food Hydrocoll 2009. [DOI: 10.1016/j.foodhyd.2008.05.002] [Citation(s) in RCA: 51] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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33
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Donato L, Guyomarc'h F. Formation and properties of the whey protein/κ-casein complexes in heated skim milk – A review. ACTA ACUST UNITED AC 2009. [DOI: 10.1051/dst:2008033] [Citation(s) in RCA: 186] [Impact Index Per Article: 12.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
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34
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Grácia-Juliá A, René M, Cortés-Muñoz M, Picart L, López-Pedemonte T, Chevalier D, Dumay E. Effect of dynamic high pressure on whey protein aggregation: A comparison with the effect of continuous short-time thermal treatments. Food Hydrocoll 2008. [DOI: 10.1016/j.foodhyd.2007.05.017] [Citation(s) in RCA: 80] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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36
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Cavallieri ALF, da Cunha RL. The effects of acidification rate, pH and ageing time on the acidic cold set gelation of whey proteins. Food Hydrocoll 2008. [DOI: 10.1016/j.foodhyd.2007.01.001] [Citation(s) in RCA: 69] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Cavallieri ALF, Costa-Netto AP, Menossi M, Da Cunha RL. Whey protein interactions in acidic cold-set gels at different pH values. ACTA ACUST UNITED AC 2008. [DOI: 10.1051/lait:2007032] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
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Le TT, El-Bakry M, Neirynck N, Bogus M, Hoa HD, Van der Meeren P. Hydrophilic lecithins protect milk proteins against heat-induced aggregation. Colloids Surf B Biointerfaces 2007; 60:167-73. [PMID: 17644324 DOI: 10.1016/j.colsurfb.2007.06.007] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2005] [Revised: 05/23/2007] [Accepted: 06/04/2007] [Indexed: 11/26/2022]
Abstract
In the present study, the heat-induced interaction between whey proteins and casein micelles was studied. To that end, the particle size distribution of 5.5% (w/w) casein micellar dispersions was determined by photon correlation spectroscopy as a function of both the whey protein concentration and heating time at 80 degrees C. The results clearly indicated that heat-induced aggregation of the casein micelles only occurred in the presence of whey proteins. In an effort to overcome the heat-induced interactions between whey proteins and casein micelles, the influence of different soybean lecithins was investigated. Comparing native to hydrolysed, as well as hydroxylated soybean lecithin, it was observed that the heat-stabilising effect of the lecithins was directly related to their hydrophilicity: whereas native soybean lecithin had hardly any beneficial effect, highly hydrolysed as well as hydroxylated soybean lecithin largely prevented heat-induced casein micelle aggregation in the presence of whey proteins. From experimental observations on the heat-induced decrease of whey protein solubility both in the absence and presence of hydrolysed lecithin, it was deduced that the latter may stabilise the exposed hydrophobic surface sites of heat-denatured whey proteins. Dynamic surface tension measurements indicated that the heat-stabilising properties of lecithins were mainly determined by their critical aggregation concentration.
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Affiliation(s)
- T Tran Le
- Ghent University, Faculty of Bioscience Engineering, Particle and Interfacial Technology Group, Coupure Links 653, B-9000 Gent, Belgium
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40
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Vial C, Thakur RK, Quintáns AP, Djelveh G, Picgirard L. Continuous manufacturing of a light-textured foamed fresh cheese by dispersion of a gas phase. II. Influence of formulation. J FOOD ENG 2006. [DOI: 10.1016/j.jfoodeng.2005.06.016] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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41
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Rheology of stirred acidified skim milk gels with different particle interactions. Colloids Surf A Physicochem Eng Asp 2006. [DOI: 10.1016/j.colsurfa.2005.08.034] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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42
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Morgan PE, Treweek TM, Lindner RA, Price WE, Carver JA. Casein proteins as molecular chaperones. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2005; 53:2670-2683. [PMID: 15796610 DOI: 10.1021/jf048329h] [Citation(s) in RCA: 117] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
Under conditions of stress, such as elevated temperature, molecular chaperones stabilize proteins from unfolding, aggregating, and precipitating. We have investigated the chaperone activity of the major milk proteins alpha(S)-, beta-, and kappa-casein with reduced insulin and the milk whey proteins, alpha-lactalbumin and beta-lactoglobulin, and compared it with that of the mammalian small heat shock protein (sHsp), alpha-crystallin, and clusterin. alpha(S)-Casein exhibited different chaperone behavior under reduction and heat stresses, i.e., chaperone activity increased with increasing temperature (as observed with alpha-crystallin), but under reduction stress, its chaperone activity increased at lower temperatures. beta- and kappa-casein had comparable chaperone ability with each other but were less effective than alpha(S)-casein. Under molecular crowding conditions, precipitation of stressed protein was accelerated, and alpha(S)-casein was a poorer chaperone. Furthermore, at slightly alkaline pH values, alpha(S)-casein was a less effective chaperone than at neutral pH. Detailed fluorescence, size exclusion chromatography, and real-time NMR studies studies indicated that the casein proteins underwent conformational changes and stabilized the partially unfolded whey proteins prior to formation of high molecular weight soluble complexes. These results are consistent with casein proteins acting as molecular chaperones in a manner similar to sHsps and clusterin.
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Affiliation(s)
- Philip E Morgan
- Department of Chemistry, University of Wollongong, Northfields Avenue, Wollongong, New South Wales 2522, Australia
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CHEN JIANSHE, MOSCHAKIS THOMAS, NELSON PHILIP. APPLICATION OF SURFACE FRICTION MEASUREMENTS FOR SURFACE CHARACTERIZATION OF HEAT-SET WHEY PROTEIN GELS. J Texture Stud 2005. [DOI: 10.1111/j.1745-4603.2004.35502.x] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Mellema M, Isenbart JG. Effect of Acidification and Heating on the Rheological Properties of Oil-Water Interfaces with Adsorbed Milk Proteins. J Dairy Sci 2004; 87:2769-78. [PMID: 15375034 DOI: 10.3168/jds.s0022-0302(04)73404-9] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
The behavior of casein and whey proteins at the oil-water interface was studied using a dynamic drop tensiometer (DDT). The dilational modulus of the interface was measured for aqueous solutions of skim milk powder (SMP) and whey protein concentrate (WPC) with various additions (salt, calcium, lactose) and (order of) various processing steps. Acidification or heating was performed before or after creation of the interface. The elastic properties of oil-water interfaces with adsorbed milk proteins could partly determine the rate of partial coalescence and resulting product instability. For WPC, preacidification slows down the adsorption, but the modulus is not affected. This is probably because, although the whey proteins change conformation more slowly at the interface, still a homogeneous film is formed. If postacidification is applied, coarsening of the protein film leads to loss of interfacial rigidity. Preheating of the aqueous phase with WPC leads to denaturation and aggregation, but the aggregates formed are still surface active and give high moduli. If preheating of a WPC solution is followed by postacidification, the resulting modulus is high (approximately 60 mN/m). The oil-water interfacial properties of SMP are only minimally affected by preheating or by choice of powder (low, medium, or high heat). At low pH, however, aggregates are formed that are less surface active, and interfacial moduli are lower. If measurements are performed at high temperature (i.e., if postheating is applied), for both SMP and WPC systems, moduli became much lower (approximately 10 mN/m). This is probably because of accelerated rearrangements, leading to the formation of inhomogeneous film structures.
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Affiliation(s)
- M Mellema
- Unilever R and D Vlaardingen, 3130 AC Vlaardingen, The Netherlands
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Livney YD, Dalgleish DG. Specificity of disulfide bond formation during thermal aggregation in solutions of beta-lactoglobulin B and kappa-casein A. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2004; 52:5527-5532. [PMID: 15315395 DOI: 10.1021/jf049955h] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
Heat-induced (90 degrees C, 10 min, pH 6.7) intermolecular disulfide bond formation in 1:1 mixtures of beta-lactoglobulin B (beta-Lg) and kappa-casein A (kappa-CN) was studied by enzymatic digestion with trypsin or glu-C, reverse-phase HPLC, and MALDI-TOF-MS. Observed masses were compared to theoretically calculated masses of disulfide-bonded peptide dimers and trimers, and the number of different masses matching peptide combinations involving each bond was used as a measure of confidence of identification. The beta-Lg cysteine residues 121 or 119 were involved in bonds with both cysteines of kappa-CN and all cysteines of beta-Lg. This agrees with the supposed initiatory role of beta-C121 in heat-induced SH/SS interchange. The largest numbers of matches corresponded to bonds linking beta-C119/C121 with kappa-C11 or with beta-C66. Multiple matches were recorded for beta-C119/C121 bonding with beta-C119/C121, with beta-C160, or with kappa-C88. However, beta-C106 was observed only in bonds with beta-C119/C121 and did not appear to bond to kappa-CN, suggesting it remains buried in the core of the protein.
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Affiliation(s)
- Yoav D Livney
- Department of Food Science, University of Guelph, Guelph, Ontario N1G 2W1, Canada
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