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Sun Y, Zhao M, Liu Z, Shi H, Zhang X, Zhao Y, Ma Z, Yu G, Xia G, Shen X. Relationship between the interfacial properties of lactoferrin-(-)-epigallocatechin-3-gallate covalent complex and the macroscopic properties of emulsions. Food Chem 2024; 460:140536. [PMID: 39089037 DOI: 10.1016/j.foodchem.2024.140536] [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: 04/18/2024] [Revised: 07/17/2024] [Accepted: 07/18/2024] [Indexed: 08/03/2024]
Abstract
This study explored the relationship between the interfacial behavior of lactoferrin-(-)-epigallocatechin-3-gallate covalent complex (LF-EGCG) and the stability of high internal phase Pickering emulsions (HIPPEs). The formation of covalent bond between lactoferrin and polyphenol was verified by the increase in molecular weight. In LF-EGCG group, the surface hydrophobicity, interfacial pressure, and adsorption rate were decreased, while the molecular flexibility, interfacial film viscoelasticity, and interfacial protein content were increased. Meanwhile, LF-EGCG HIPPE possessed reduced droplet size, increased ζ-potential and stability. Rheology showed the viscoelasticity, structural recovery and gel strength of LF-EGCG HIPPE were improved, giving HIPPE inks better 3D printing integrity and clarity. Moreover, the free fatty acids (FFA) release of LF-EGCG HIPPE (62.6%) was higher than that of the oil group (50.1%). Therefore, covalent treatment effectively improved the interfacial properties of protein particles and the stability of HIPPEs. The macroscopic properties of HIPPEs were positively regulated by the interfacial properties of protein particles. The result suggested that the stability of emulsions can be improved by regulating the interfacial properties of particles.
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Affiliation(s)
- Ying Sun
- Hainan Engineering Research Center of Aquatic Resources Efficient Utilization in South China Sea, Key Laboratory of Food Nutrition and Functional Food of Hainan Province, Key Laboratory of Seafood Processing of Haikou, College of Food Science and Technology, Hainan University, Hainan 570228, China
| | - Mantong Zhao
- Hainan Engineering Research Center of Aquatic Resources Efficient Utilization in South China Sea, Key Laboratory of Food Nutrition and Functional Food of Hainan Province, Key Laboratory of Seafood Processing of Haikou, College of Food Science and Technology, Hainan University, Hainan 570228, China
| | - Zhongyuan Liu
- Hainan Engineering Research Center of Aquatic Resources Efficient Utilization in South China Sea, Key Laboratory of Food Nutrition and Functional Food of Hainan Province, Key Laboratory of Seafood Processing of Haikou, College of Food Science and Technology, Hainan University, Hainan 570228, China
| | - Haohao Shi
- Hainan Engineering Research Center of Aquatic Resources Efficient Utilization in South China Sea, Key Laboratory of Food Nutrition and Functional Food of Hainan Province, Key Laboratory of Seafood Processing of Haikou, College of Food Science and Technology, Hainan University, Hainan 570228, China
| | - Xueying Zhang
- Hainan Engineering Research Center of Aquatic Resources Efficient Utilization in South China Sea, Key Laboratory of Food Nutrition and Functional Food of Hainan Province, Key Laboratory of Seafood Processing of Haikou, College of Food Science and Technology, Hainan University, Hainan 570228, China
| | - Yongqiang Zhao
- Sanya Tropical Fisheries Research Institute, Sanya 572018, China
| | - Zhenhua Ma
- Sanya Tropical Fisheries Research Institute, Sanya 572018, China
| | - Gang Yu
- Sanya Tropical Fisheries Research Institute, Sanya 572018, China
| | - Guanghua Xia
- Hainan Engineering Research Center of Aquatic Resources Efficient Utilization in South China Sea, Key Laboratory of Food Nutrition and Functional Food of Hainan Province, Key Laboratory of Seafood Processing of Haikou, College of Food Science and Technology, Hainan University, Hainan 570228, China.; Collaborative Innovation Center of Provincial and Ministerial Co-Construction for Marine Food Deep Processing, Dalian Polytechnic University, Dalian 116034, China..
| | - Xuanri Shen
- College of Food Science and Technology, Hainan Tropical Ocean University, Sanya 572022, China
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2
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Yan X, Peng X, McClements DJ, Ma C, Liu X, Liu F. Interfacial engineering of Pickering emulsions stabilized by pea protein-alginate microgels for encapsulation of hydrophobic bioactives. Food Chem 2024; 460:140761. [PMID: 39137575 DOI: 10.1016/j.foodchem.2024.140761] [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: 05/30/2024] [Revised: 07/28/2024] [Accepted: 08/02/2024] [Indexed: 08/15/2024]
Abstract
This study aims to investigate the effects of interfacial layer composition and structure on the formation, physicochemical properties and stability of Pickering emulsions. Interfacial layers were formed using pea protein isolate (PPI), PPI microgel particles (PPIMP), a mixture of PPIMP and sodium alginate (PPIMP-SA), or PPIMP-SA conjugate. The encapsulation and protective effects on different hydrophobic bioactives were then evaluated within these Pickering emulsions. The results demonstrated that the PPIMP-SA conjugate formed thick and robust interfacial layers around the oil droplet surfaces, which increased the resistance of the emulsion to coalescence, creaming, and environmental stresses, including heating, light exposure, and freezing-thawing cycle. Additionally, the emulsion stabilized by the PPIMP-SA conjugate significantly improved the photothermal stability of hydrophobic bioactives, retaining a higher percentage of their original content compared to those in non-encapsulated forms. Overall, the novel protein microgels and the conjugate developed in this study have great potential for improving the physicochemical stability of emulsified foods.
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Affiliation(s)
- Xiaojia Yan
- College of Food Science and Engineering, Northwest A&F University, Yangling 712100, Shaanxi, China
| | - Xiaoke Peng
- College of Food Science and Engineering, Northwest A&F University, Yangling 712100, Shaanxi, China
| | | | - Cuicui Ma
- College of Food Science and Engineering, Northwest A&F University, Yangling 712100, Shaanxi, China.
| | - Xuebo Liu
- College of Food Science and Engineering, Northwest A&F University, Yangling 712100, Shaanxi, China
| | - Fuguo Liu
- College of Food Science and Engineering, Northwest A&F University, Yangling 712100, Shaanxi, China.
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3
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Ma X, Kong S, Li Z, Zhen S, Sun F, Yang N. Effect of cross-linking density on the rheological behavior of ultra-soft chitosan microgels at the oil-water interface. J Colloid Interface Sci 2024; 672:574-588. [PMID: 38852358 DOI: 10.1016/j.jcis.2024.06.026] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2024] [Revised: 06/02/2024] [Accepted: 06/03/2024] [Indexed: 06/11/2024]
Abstract
In this paper, microgels with uniform particle size were prepared by physically cross-linking the hydrophobically modified chitosan (h-CS) with sodium phytate (SP). The effects of cross-linking density on the interfacial adsorption kinetics, viscoelasticity, stress relaxation, and micorheological properties of the hydrophobically modified chitosan microgels (h-CSMs) at the oil-water interface were extensively investigated by the dilatational rheology, compressional rheology, and particle tracing microrheology. The results were correlated with the particle size, morphology, and elasticity of the microgels characterized by dynamic light scattering and atomic force microscopy. It was found that with the increase of cross-linking density, the h-CSMs changed from a polymer-like state to ultra-soft fussy spheres with higher elastic modulus. The compression isotherms demonstrated multi-stage increase caused by the interaction between the shells and that between the cores of the microgels successively. As the increase of cross-linking density, the h-CSMs diffused slower to the oil-water interface, but demonstrating faster permeation adsorption and rearrangement at the oil-water interface, finally forming interfacial layers of higher viscoelastic modulus due to the core-core interaction. Both the initial tension relaxation and the microgel rearrangement after interface expansion became faster as the microgel elasticity increased. The interfacial microrheology demonstrated dynamic caging effect caused by neighboring microgels. This article provides a more comprehensive understanding of the behaviors of polysaccharide microgels at the oil-water interface.
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Affiliation(s)
- Xuxi Ma
- Glyn O. Phillips Hydrocolloid Research Centre, National "111" Center for Cellular Regulation and Molecular Pharmaceutics, Key Laboratory of Fermentation Engineering (Ministry of Education), Key Laboratory of Industrial Microbiology in Hubei, Department of Bioengineering and Food Science, Hubei University of Technology, Wuhan 430068, China
| | - Songmei Kong
- Glyn O. Phillips Hydrocolloid Research Centre, National "111" Center for Cellular Regulation and Molecular Pharmaceutics, Key Laboratory of Fermentation Engineering (Ministry of Education), Key Laboratory of Industrial Microbiology in Hubei, Department of Bioengineering and Food Science, Hubei University of Technology, Wuhan 430068, China
| | - Zhenzhen Li
- Glyn O. Phillips Hydrocolloid Research Centre, National "111" Center for Cellular Regulation and Molecular Pharmaceutics, Key Laboratory of Fermentation Engineering (Ministry of Education), Key Laboratory of Industrial Microbiology in Hubei, Department of Bioengineering and Food Science, Hubei University of Technology, Wuhan 430068, China
| | - Shiyu Zhen
- Glyn O. Phillips Hydrocolloid Research Centre, National "111" Center for Cellular Regulation and Molecular Pharmaceutics, Key Laboratory of Fermentation Engineering (Ministry of Education), Key Laboratory of Industrial Microbiology in Hubei, Department of Bioengineering and Food Science, Hubei University of Technology, Wuhan 430068, China
| | - Fusheng Sun
- Glyn O. Phillips Hydrocolloid Research Centre, National "111" Center for Cellular Regulation and Molecular Pharmaceutics, Key Laboratory of Fermentation Engineering (Ministry of Education), Key Laboratory of Industrial Microbiology in Hubei, Department of Bioengineering and Food Science, Hubei University of Technology, Wuhan 430068, China; Food Hydrocolloid International Science and Technology Cooperation Base of Hubei Province, Hubei University of Technology, Wuhan 430068, China
| | - Nan Yang
- Glyn O. Phillips Hydrocolloid Research Centre, National "111" Center for Cellular Regulation and Molecular Pharmaceutics, Key Laboratory of Fermentation Engineering (Ministry of Education), Key Laboratory of Industrial Microbiology in Hubei, Department of Bioengineering and Food Science, Hubei University of Technology, Wuhan 430068, China; Food Hydrocolloid International Science and Technology Cooperation Base of Hubei Province, Hubei University of Technology, Wuhan 430068, China.
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4
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Gao X, Li A, Zhou C. l-Arginine and l-lysine improve the emulsifying and dissolution properties of pale, soft, exudative-like chicken myofibrillar proteins by modifying their conformations. Food Chem 2024; 463:141136. [PMID: 39255701 DOI: 10.1016/j.foodchem.2024.141136] [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: 02/29/2024] [Revised: 06/28/2024] [Accepted: 09/02/2024] [Indexed: 09/12/2024]
Abstract
Herein, we investigated the effect and potential mechanisms of l-arginine (Arg) and l-lysine (Lys) on the emulsifying and dissolution properties of pale, soft, exudative (PSE)-like chicken myofibrillar proteins (MPs). The findings revealed that Arg/Lys effectively enhanced the emulsion activity and emulsion stability indexes of PSE-like MPs, resulting in smaller and more uniform PSE-like MP-soybean oil emulsions. Arg/Lys increased the solubility, absolute potential, hydrophobicity, fluorescence intensity, and β-sheet content and decreased the turbidity, particle size, and β-turn and random coil content of PSE-like MPs. Additionally, Arg/Lys did not significantly affect the Schiff base, carbonyl group, and total sulfhydryl contents, but caused a red shift of the band near 299 nm, indicating conformational rather than primary structural changes. Altogether, these findings indicate that Arg/Lys improves the emulsifying and dissolution performances of PSE-like MPs by adjusting conformation and contributes to a better understanding of how Arg/Lys enhances the physicochemical properties of PSE-like sausages.
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Affiliation(s)
- Xun Gao
- Engineering Research Centre of Bio-Process, Ministry of Education, Hefei University of Technology, Hefei, Anhui 230009, PR China; School of Food and Biological Engineering, Hefei University of Technology, Hefei, Anhui 230009, PR China
| | - Axiang Li
- Engineering Research Centre of Bio-Process, Ministry of Education, Hefei University of Technology, Hefei, Anhui 230009, PR China; School of Food and Biological Engineering, Hefei University of Technology, Hefei, Anhui 230009, PR China
| | - Cunliu Zhou
- Engineering Research Centre of Bio-Process, Ministry of Education, Hefei University of Technology, Hefei, Anhui 230009, PR China; School of Food and Biological Engineering, Hefei University of Technology, Hefei, Anhui 230009, PR China.
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5
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Han Y, Zhu L, Zhang H, Liu T, Wu G. Synergistic effect of gellan gum and guar gum on improving the foaming properties of soy protein isolate-based complexes: Interaction mechanism and interfacial behavior. Carbohydr Polym 2024; 339:122202. [PMID: 38823898 DOI: 10.1016/j.carbpol.2024.122202] [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: 03/25/2024] [Revised: 04/15/2024] [Accepted: 04/22/2024] [Indexed: 06/03/2024]
Abstract
Interactions among multi-component play a critical role in modulating the foaming properties of aerated foods. This study evaluated the mechanisms of synergistic improvement of gellan gum (GEG) and guar gum (GUG) on the foaming properties of soy protein isolate (SPI)-based complex. The results showed that the GEG/GUG ratio was closely related to the intermolecular interactions of SPI-based ternary complex and the dynamical changing of its foaming properties. The SPI/GEG/GUG ternary complex with a GEG/GUG ratio of 2/3 exhibited the highest foamability (195 %) and comparable foam stability (99.17 %), which were 32.95 % and 2.99 % higher than that of SPI/GEG binary complex. At this ratio, GUG promoted the interactions between SPI and GEG, and bound to complex's surface through hydrogen bonding, resulting in the increase of particle size and surface charge, and the decrease of surface hydrophobicity. Although this reduced the diffusion of complex onto the air/water interface, it increased permeation rate and molecular rearrangement behavior, which were the potential mechanisms to improve the foaming properties. Additionally, the synergistic effect of GEG and GUG also enhanced the elastic strength and solid characteristics of foam systems. This study provided a theoretical guidance for the targeted modulation of foaming properties of multi-component aerated foods.
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Affiliation(s)
- Yameng Han
- National Engineering Research Center for Functional Food, Collaborative Innovation Center of Food Safety and Quality Control in Jiangsu Province, School of Food Science and Technology, Jiangnan University, Wuxi 214122, Jiangsu, China
| | - Ling Zhu
- National Engineering Research Center for Functional Food, Collaborative Innovation Center of Food Safety and Quality Control in Jiangsu Province, School of Food Science and Technology, Jiangnan University, Wuxi 214122, Jiangsu, China.
| | - Hui Zhang
- National Engineering Research Center for Functional Food, Collaborative Innovation Center of Food Safety and Quality Control in Jiangsu Province, School of Food Science and Technology, Jiangnan University, Wuxi 214122, Jiangsu, China.
| | - Tongtong Liu
- National Engineering Research Center for Functional Food, Collaborative Innovation Center of Food Safety and Quality Control in Jiangsu Province, School of Food Science and Technology, Jiangnan University, Wuxi 214122, Jiangsu, China; Binzhou Zhongyu Food Company Limited, Binzhou Zhongyu Academy of Agricultural Sciences, National Industry Technical Innovation Center for Wheat Processing, Binzhou 256603, Shandong, China; Bohai Advanced Technology Institute, Binzhou 256606, Shandong, China
| | - Gangcheng Wu
- National Engineering Research Center for Functional Food, Collaborative Innovation Center of Food Safety and Quality Control in Jiangsu Province, School of Food Science and Technology, Jiangnan University, Wuxi 214122, Jiangsu, China
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6
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Liu T, Meng H, Guo X, Liu Y, Zhang J. Influences of different ultrasonic treatment intensities on the molecular chain conformation and interfacial behavior of sugar beet pectin. Int J Biol Macromol 2024; 275:133643. [PMID: 38964680 DOI: 10.1016/j.ijbiomac.2024.133643] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2023] [Revised: 06/16/2024] [Accepted: 07/02/2024] [Indexed: 07/06/2024]
Abstract
In this study, the effects of different ultrasonic treatment intensities (57, 170, and 283 W/cm2) on the chemical composition, molecular chain characteristics, crystal structure, micromorphology, interfacial adsorption behavior and emulsifying properties of sugar beet pectin (SBP) were investigated. Ultrasonic treatment did not change the types of SBP monosaccharides, but it had impacts on their various monosaccharide contents. Moreover, the feruloylated, acetyl, and methoxy groups of SBP also undergo varying degrees of changes. The increase in ultrasonic treatment intensity led to transition in the molecular chain conformation of SBP from rigid semi-flexible chains to flexible chains, accompanied by modification in its crystal structure. Microstructural analysis of SBP confirmed the significant change in molecular chain conformation. Modified SBP could form an elastic interfacial film with higher deformation resistance on the oil-water interface. The SBP sample modified with 170 W/cm2 exhibited better emulsifying properties owing to its better interfacial adsorption behavior. Moreover, the emulsions prepared with modified SBP exhibited better stability capability under different environmental stresses (pH value, salt ion concentration, heating temperature and freeze-thaw treatment). The results revealed that the ultrasonic technology is useful to improve the emulsifying properties of SBP.
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Affiliation(s)
- Ting Liu
- School of Food Science and Technology, Shihezi University, Shihezi, Xinjiang 832003, China; Key Laboratory of Agricultural Product Processing and Quality Control of Specialty (Co-construction by Ministry and Province), School of Food Science and Technology, Shihezi University, Shihezi, Xinjiang 832003, China; Key Laboratory for Food Nutrition and Safety Control of Xinjiang Production and Construction Corps, School of Food Science and Technology, Shihezi University, Shihezi, Xinjiang 832003, China
| | - Hecheng Meng
- School of Food Science and Engineering, South China University of Technology, Guangzhou 510640, China
| | - Xiaobing Guo
- School of Food Science and Technology, Shihezi University, Shihezi, Xinjiang 832003, China; Key Laboratory of Agricultural Product Processing and Quality Control of Specialty (Co-construction by Ministry and Province), School of Food Science and Technology, Shihezi University, Shihezi, Xinjiang 832003, China; Key Laboratory for Food Nutrition and Safety Control of Xinjiang Production and Construction Corps, School of Food Science and Technology, Shihezi University, Shihezi, Xinjiang 832003, China.
| | - Yibo Liu
- School of Food Science and Technology, Shihezi University, Shihezi, Xinjiang 832003, China; Key Laboratory of Agricultural Product Processing and Quality Control of Specialty (Co-construction by Ministry and Province), School of Food Science and Technology, Shihezi University, Shihezi, Xinjiang 832003, China; Key Laboratory for Food Nutrition and Safety Control of Xinjiang Production and Construction Corps, School of Food Science and Technology, Shihezi University, Shihezi, Xinjiang 832003, China
| | - Jian Zhang
- School of Food Science and Technology, Shihezi University, Shihezi, Xinjiang 832003, China; Key Laboratory of Agricultural Product Processing and Quality Control of Specialty (Co-construction by Ministry and Province), School of Food Science and Technology, Shihezi University, Shihezi, Xinjiang 832003, China; Key Laboratory for Food Nutrition and Safety Control of Xinjiang Production and Construction Corps, School of Food Science and Technology, Shihezi University, Shihezi, Xinjiang 832003, China.
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7
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Han Y, Zhu L, Zhang H, Liu T, Wu G. Understanding the foam stability mechanisms of complex formed by soy protein isolate and different charged polysaccharides: Air/water interfacial behavior and rheological characteristics. Int J Biol Macromol 2024; 268:131583. [PMID: 38621554 DOI: 10.1016/j.ijbiomac.2024.131583] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2024] [Revised: 04/02/2024] [Accepted: 04/11/2024] [Indexed: 04/17/2024]
Abstract
This study evaluated the foaming properties, the dynamic adsorption behavior at the air/water (A/W) interface and the foam rheological characteristics of complexes formed by soy protein isolate (SPI) and different charged polysaccharides, including chitosan (CS), guar gum (GUG) and gellan gum (GEG). The results showed that the SPI/CS10 had the highest initial foam volume (26.67 mL), which were 3.89 %, 100.08 % and 70.19 % higher than that of single SPI, SPI/GUG and SPI/GEG complexes, respectively. Moreover, three charged polysaccharides could all significantly improve the foam stability of complexes. Among them, foams stabilized by SPI/GEG10 were the most stable that the foam volume slightly changed (approximately 1 mL) and no drainage occurred throughout the whole recording process. The interfacial behavior analysis showed that SPI/CS10 had higher diffusion (Kdiff) and rearrangement rate (KR) but lower penetration rate (KP) at the A/W interface compared with single SPI, while SPI/GUG10 and all SPI/GEG complexes showed higher KR and KP but lower Kdiff. In addition, SPI/CS10 was beneficial to concurrently enhance the elastic strength and solid-like behavior of foam system, while all SPI/GEG complexes could improve the elastic strength of foam system but was not conducive to the solid-like behavior.
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Affiliation(s)
- Yameng Han
- National Engineering Research Center for Functional Food, Collaborative Innovation Center of Food Safety and Quality Control in Jiangsu Province, School of Food Science and Technology, Jiangnan University, Wuxi 214122, Jiangsu, China
| | - Ling Zhu
- National Engineering Research Center for Functional Food, Collaborative Innovation Center of Food Safety and Quality Control in Jiangsu Province, School of Food Science and Technology, Jiangnan University, Wuxi 214122, Jiangsu, China.
| | - Hui Zhang
- National Engineering Research Center for Functional Food, Collaborative Innovation Center of Food Safety and Quality Control in Jiangsu Province, School of Food Science and Technology, Jiangnan University, Wuxi 214122, Jiangsu, China.
| | - Tongtong Liu
- National Engineering Research Center for Functional Food, Collaborative Innovation Center of Food Safety and Quality Control in Jiangsu Province, School of Food Science and Technology, Jiangnan University, Wuxi 214122, Jiangsu, China; Binzhou Zhongyu Food Company Limited, Binzhou Zhongyu Academy of Agricultural Sciences, National Industry Technical Innovation Center for Wheat Processing, Binzhou 256603, Shandong, China; Bohai Advanced Technology Institute, Binzhou 256606, Shandong, China
| | - Gangcheng Wu
- National Engineering Research Center for Functional Food, Collaborative Innovation Center of Food Safety and Quality Control in Jiangsu Province, School of Food Science and Technology, Jiangnan University, Wuxi 214122, Jiangsu, China
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8
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Keshmiri A, Keshavarzi B, Eftekhari M, Heitkam S, Eckert K. The impact of an ultrasonic standing wave on the sorption behavior of proteins: Investigation of the role of acoustically induced non-spherical bubble oscillations. J Colloid Interface Sci 2024; 660:52-65. [PMID: 38241871 DOI: 10.1016/j.jcis.2023.12.148] [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: 08/02/2023] [Revised: 11/30/2023] [Accepted: 12/26/2023] [Indexed: 01/21/2024]
Abstract
HYPOTHESIS Protein molecules adsorb on the air/liquid interface due to possessing a hydrophobic side. A full surface coverage is important in many processes such as in protein harvesting by foam fractionation. The adsorption of proteins in low concentration solutions is preceded by a relatively long time lag known as the induction period. This has been attributed to the formation of an adsorbed monolayer, which relies on the reorientation of the protein molecules. The reduction of the induction period can significantly facilitate the sorption process to reach full protein coverage. For this purpose acoustically induced non-spherical bubble oscillations can aid in the formation of the monolayer and enhance the sorption process. EXPERIMENT In this study, low frequency ultrasound was used to induce non-spherical oscillations on an air bubble attached to a capillary. Profile analysis tensiometry was deployed to examine the effect of these non-spherical oscillations on the sorption dynamics of different proteins. FINDINGS We observed that during the initial stages of adsorption, when the bubble surface is almost empty, non-spherical oscillations occur, which were found to significantly expedite the adsorption process. However, during later stages of the adsorption process, despite the continued presence of several sonication phenomena such as the primary radiation force and acoustic streaming, no change in adsorption behavior of the proteins could be noted. The occurrence, duration, and intensity of the non-spherical bubble oscillations appeared to be the sole contributing factors for the change of the sorption dynamics of proteins.
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Affiliation(s)
- Anahita Keshmiri
- Helmholtz-Zentrum Dresden-Rossendorf, Institute of Fluid Dynamics, Bautzner Landstrasse 400, Dresden, 01328, Saxony, Germany; Technische Universität Dresden, Institute of Process Engineering and Environmental Technology, Dresden, 01069, Saxony, Germany.
| | - Behnam Keshavarzi
- Technische Universität Dresden, Institute of Process Engineering and Environmental Technology, Dresden, 01069, Saxony, Germany
| | - Milad Eftekhari
- Helmholtz-Zentrum Dresden-Rossendorf, Institute of Fluid Dynamics, Bautzner Landstrasse 400, Dresden, 01328, Saxony, Germany
| | - Sascha Heitkam
- Helmholtz-Zentrum Dresden-Rossendorf, Institute of Fluid Dynamics, Bautzner Landstrasse 400, Dresden, 01328, Saxony, Germany; Technische Universität Dresden, Institute of Process Engineering and Environmental Technology, Dresden, 01069, Saxony, Germany
| | - Kerstin Eckert
- Helmholtz-Zentrum Dresden-Rossendorf, Institute of Fluid Dynamics, Bautzner Landstrasse 400, Dresden, 01328, Saxony, Germany; Technische Universität Dresden, Institute of Process Engineering and Environmental Technology, Dresden, 01069, Saxony, Germany
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9
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Xu C, Zhang X, Sun M, Liu H, Lv C. Interactions between humulinone derived from aged hops and protein Z enhance the foamability and foam stability. Food Chem 2024; 434:137449. [PMID: 37716140 DOI: 10.1016/j.foodchem.2023.137449] [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: 08/01/2023] [Revised: 09/06/2023] [Accepted: 09/08/2023] [Indexed: 09/18/2023]
Abstract
Foam is one of the important characteristics of beer, including foamability, foam stability and foam texture. Protein Z (PZ) is considered to be an important component of beer foam. In this study, the interaction between PZ and humulinone, a widespread compound in aged hops, and the effect on foam properties of PZ were investigated. The fluorescence spectra showed that the stoichiometric ratio of humulinone to PZ was 4.25 ± 0.48: 1, and the binding constant was (1.64 ± 0.17) × 105 M-1. MD and FTIR results showed that the main force of interaction between PZ and humulinone was hydrogen bond, and the possible sites were Asn-37, Ser-292, Lys-290 and Pro-395. Moreover, the addition of humulinone greatly reduced the surface tension of PZ solution, and changed the secondary structure of PZ, which is beneficial for the foam stability. Under the influence of humulinone, the foamability, foam stability and foam texture of PZ all increased.
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Affiliation(s)
- Chen Xu
- College of Food Science & Nutritional Engineering, China Agricultural University, Beijing, China
| | - Xuanqi Zhang
- College of Food Science & Nutritional Engineering, China Agricultural University, Beijing, China
| | - Mingyang Sun
- College of Food Science & Nutritional Engineering, China Agricultural University, Beijing, China
| | - Hanhan Liu
- College of Food Science & Nutritional Engineering, China Agricultural University, Beijing, China
| | - Chenyan Lv
- College of Food Science & Nutritional Engineering, China Agricultural University, Beijing, China.
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10
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Cai J, Wu J, Yu X, Wan Z, Yang X. Interfacial assembly and rheology of multi-responsive glycyrrhizic acid at liquid interfaces. SOFT MATTER 2024; 20:1173-1185. [PMID: 38164656 DOI: 10.1039/d3sm00973d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/03/2024]
Abstract
Glycyrrhizic acid (GA), a naturally derived food-grade saponin molecule, is a promising alternative to synthetic surfactants for stabilizing multiphase systems including emulsions and foams, due to its biological activity and surface-active properties. Understanding the interfacial behavior of GA, particularly in relation to its complex self-assembly behaviors in water induced by multiple environmental stimuli, is crucial to its application in multiphase systems. In this study, we comprehensively investigate the interfacial structure and rheological properties of GA systems, as a function of pH and temperature, through Langmuir-Blodgett films combined with atomic force microscopy, interfacial particle tracking, adsorption kinetics, stress-relaxation behavior and interfacial dilatational rheology. The variation of solution pH provokes pronounced changes in the interfacial properties of GA. At pH 2 and 4, GA fibril aggregates/fibrils adsorb rapidly, followed by rearrangement into large lamellar and rod-like structures, forming a loose and heterogeneous fibrous network at the interface, which exhibit a stretchable gel-like behavior. In contrast, GA at pH 6 and 8, featuring micelles or monomers in solutions, adsorb slowly to the interface and re-assemble partially into small micelle-like or irregular structures, which lead to a dense and homogeneous interfacial layer with stiffer glassy-like responses. With successively elevated temperature, the GA structures (pH 4) at the interface break into smaller fragments and further adsorption is promoted. Upon cooling, the interfacial tension of GA further decreases and a highly elastic interfacial layer may be formed. The diverse GA assemblies in bulk solution impart them with rich and intriguing interfacial behaviors, which may provide valuable mechanistic insights for the development of novel edible soft matter stabilized by GA.
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Affiliation(s)
- Jiyang Cai
- Laboratory of Food Proteins and Colloids, School of Food Science and Engineering, Guangdong Province Key Laboratory for Green Processing of Natural Products and Product Safety, South China University of Technology, Guangzhou 510640, China.
| | - Jiahao Wu
- Department of Chemistry, The Chinese University of Hong Kong, Shatin, NT, Hong Kong, China
| | - Xinke Yu
- Laboratory of Food Proteins and Colloids, School of Food Science and Engineering, Guangdong Province Key Laboratory for Green Processing of Natural Products and Product Safety, South China University of Technology, Guangzhou 510640, China.
| | - Zhili Wan
- Laboratory of Food Proteins and Colloids, School of Food Science and Engineering, Guangdong Province Key Laboratory for Green Processing of Natural Products and Product Safety, South China University of Technology, Guangzhou 510640, China.
- Overseas Expertise Introduction Center for Discipline Innovation of Food Nutrition and Human Health (111 Center), Guangzhou 510640, China
| | - Xiaoquan Yang
- Laboratory of Food Proteins and Colloids, School of Food Science and Engineering, Guangdong Province Key Laboratory for Green Processing of Natural Products and Product Safety, South China University of Technology, Guangzhou 510640, China.
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11
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Sun Y, Roos YH, Miao S. Comparative study of interfacial properties and thermal behaviour of milk fat globules and membrane prepared from ultrasonicated bovine milk. ULTRASONICS SONOCHEMISTRY 2024; 102:106755. [PMID: 38219547 PMCID: PMC10825641 DOI: 10.1016/j.ultsonch.2024.106755] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/17/2023] [Revised: 01/02/2024] [Accepted: 01/04/2024] [Indexed: 01/16/2024]
Abstract
Milk fat globules or milk fat globule membranes (MFGs/MFGM) have been added to the infant formula to fortify the phospholipids and narrow the nutritional gap from breast milk. The main aim of this study was to profile the interfacial and thermal properties of MFGs/MFGM prepared from ultrasonicated bovine milk. Bovine milk was sonicated at ultrasonic intensities of 20 kHz and 40 kHz independently or synchronously with the duration time of 0 min (control), 5 min, 10 min, and 15 min (work/rest cycles = 5 s: 3 s). Ultrasonic treatments at 20 kHz/ 5 min and 20 + 40 kHz/ 5 min improved the volume density (%) of smaller particles (1-10 µm) while significantly decreasing the surface hydrophobicity (H0) (p < 0.05). 40 kHz/5 min samples showed significantly higher ζ- potential than the other samples (p < 0.05), which might be because more negative charges were detected. In comparison with control samples, ultrasonic treatments decreased the interfacial tension (π) between the air and MFGs/MFGM liquid phase. 20 kHz ultra-sonicated treatments decreased the diffusion rate (k diff) of MFGs/MFGM interfacial compositions significantly as the duration prolonged from 5 min to 15 min (p < 0.05) but did not affect the adsorption or penetration rate (k a) (p > 0.05). X-ray diffraction (XRD) results showed that α-crystal peaks only existed in control and ultrasonicated 5 min samples but disappeared in all 15 min samples. According to the different scanning calorimetry (DSC), one or two new exothermic events (in the range of 17.29 - 18.81 ℃ and 22.14 - 25.21 ℃) appeared after ultrasonic treatments, which, however, were not found in control samples. Ultrasonic treatments resulted in the low-melting fractions (LMF) (TM1) peaks undetectable in MFGs/MFGM samples in which only peaks of medium-melting fractions (MMF) (TM2) and high-melting fractions (HMF) (TM3) were detected. Compared with the control, both enthalpies of crystallisation (ΔHC) and melting (ΔHM) decreased in ultrasonicated samples. In conclusion, ultrasonic treatment affects the interfacial and thermal properties of MFGs/MFGM.
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Affiliation(s)
- Yanjun Sun
- Teagasc Food Research Centre, Moorepark, Fermoy, Co. Cork, Ireland; School of Food and Nutritional Sciences, University College Cork, Cork, Ireland
| | - Yrjö H Roos
- School of Food and Nutritional Sciences, University College Cork, Cork, Ireland
| | - Song Miao
- Teagasc Food Research Centre, Moorepark, Fermoy, Co. Cork, Ireland; China-Ireland International Cooperation Centre for Food Material Sciences and Structure Design, Fujian Agriculture and Forestry University, China.
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12
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Ma J, Pan C, Chen H, Chen W, Pei J, Zhang M, Zhong Q, Chen W, Zeng G. Effects of protein concentration, ionic strength, and heat treatment on the interfacial and emulsifying properties of coconut ( Cocos nucifera L.) globulins. Food Chem X 2023; 20:100984. [PMID: 38144867 PMCID: PMC10740072 DOI: 10.1016/j.fochx.2023.100984] [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: 05/31/2023] [Revised: 10/05/2023] [Accepted: 11/06/2023] [Indexed: 12/26/2023] Open
Abstract
This research aimed to investigate the effects of protein concentration (0.2 %-1.0 %), ionic strength (100-500 mM NaCl), and heat treatment (temperature: 80 and 90℃; time: 15 and 30 min) on the interfacial and emulsifying properties of coconut globulins (CG). When protein concentration was set at 0.2-0.6 %, the interfacial adsorption increased with the increasing of protein concentration. However, the lowest interfacial viscoelasticity was found when CG concentration was 0.6 %. When the protein concentration was higher than 0.6 %, the dilatational viscoelasticity increased with the increasing of protein concentration. The protein concentration showed positive effect on the emulsion stability of CG. The ionic strength showed positive effect on the interfacial adsorption but negative effects on the interfacial viscoelasticity and emulsion stability. Higher temperature and longer heating time brought worse interface behavior. The heated CG (90℃, 30 min) had the worst interfacial behavior but the best emulsion stability.
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Affiliation(s)
- Jingrong Ma
- HNU-HSF Collaborative Innovation Laboratory, College of Food Sciences & Engineering, Hainan University, 58 People Road, Haikou 570228, China
| | - Chuang Pan
- Key Laboratory of Aquatic Product Processing, Ministry of Agriculture and Rural Affairs, National R&D Center for Aquatic Product Processing, South China Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Guangzhou 510300, China
| | - Haiming Chen
- HNU-HSF Collaborative Innovation Laboratory, College of Food Sciences & Engineering, Hainan University, 58 People Road, Haikou 570228, China
| | - Weijun Chen
- HNU-HSF Collaborative Innovation Laboratory, College of Food Sciences & Engineering, Hainan University, 58 People Road, Haikou 570228, China
| | - Jianfei Pei
- HNU-HSF Collaborative Innovation Laboratory, College of Food Sciences & Engineering, Hainan University, 58 People Road, Haikou 570228, China
| | - Ming Zhang
- HNU-HSF Collaborative Innovation Laboratory, College of Food Sciences & Engineering, Hainan University, 58 People Road, Haikou 570228, China
| | - Qiuping Zhong
- HNU-HSF Collaborative Innovation Laboratory, College of Food Sciences & Engineering, Hainan University, 58 People Road, Haikou 570228, China
| | - Wenxue Chen
- HNU-HSF Collaborative Innovation Laboratory, College of Food Sciences & Engineering, Hainan University, 58 People Road, Haikou 570228, China
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13
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Zhang H, Zhang W, Xu X, Zhao X. Aggregate Size Modulates the Oil/Water Interfacial Behavior of Myofibrillar Proteins: Toward the Thicker Interface Film and Disulfide Bond. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2023; 39:17782-17797. [PMID: 38033267 DOI: 10.1021/acs.langmuir.3c02394] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/02/2023]
Abstract
Myofibrillar protein (MP) aggregate models have been established to elucidate the correlation between their aggregate sizes and interfacial properties. The interfacial layer thickness was measured by the polystyrene latex method and quartz crystal microbalance with dissipation measurement. Interfacial conformations were then characterized in situ (front-surface fluorescence spectroscopy) and ex situ (reactive sulfhydryl group and secondary structure measurement following MP displacement). The viscoelasticity of the interfacial film and its resistance to surfactant-induced competitive displacement were reflected by the dilatational rheology and dynamic interfacial tension with the bulk phase exchange. Finally, we compared the findings of competitive displacement before/after adding a sulfhydryl-blocking agent, N-ethylmaleimide, to highlight the role of S-S linkage on interfacial film formation and stability. We substantiated that the aggregate size of the MP governed their interfacial properties. Small-sized aggregates exhibited more ordered secondary structures on the oil-water interface, which was conducive to the adsorption ratio of the protein and the adsorption dynamics. Although larger aggregates lowered the diffusion rate during interfacial film formation, they allowed the thicker and more viscoelastic interfacial film to be constructed afterward through more disulfide bond formation, resulting in greater resistance to surfactant-induced competitive displacement.
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Affiliation(s)
- Haozhen Zhang
- State Key Laboratory of Meat Quality Control and Cultured Meat Development, Ministry of Education; Jiangsu Collaborative Innovation Center of Meat Production and Processing, Quality and Safety Control; College of Food Science and Technology; Nanjing Agricultural University, Nanjing 210095, P. R. China
| | - Weiyi Zhang
- State Key Laboratory of Meat Quality Control and Cultured Meat Development, Ministry of Education; Jiangsu Collaborative Innovation Center of Meat Production and Processing, Quality and Safety Control; College of Food Science and Technology; Nanjing Agricultural University, Nanjing 210095, P. R. China
| | - Xinglian Xu
- State Key Laboratory of Meat Quality Control and Cultured Meat Development, Ministry of Education; Jiangsu Collaborative Innovation Center of Meat Production and Processing, Quality and Safety Control; College of Food Science and Technology; Nanjing Agricultural University, Nanjing 210095, P. R. China
| | - Xue Zhao
- State Key Laboratory of Meat Quality Control and Cultured Meat Development, Ministry of Education; Jiangsu Collaborative Innovation Center of Meat Production and Processing, Quality and Safety Control; College of Food Science and Technology; Nanjing Agricultural University, Nanjing 210095, P. R. China
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14
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Jo YJ, Chu Y, Chen L. Enhanced stabilization of oil-in-water (O/W) emulsions by fibrillar gel particles from lentil proteins. Food Res Int 2023; 172:113203. [PMID: 37689950 DOI: 10.1016/j.foodres.2023.113203] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2023] [Revised: 06/20/2023] [Accepted: 06/27/2023] [Indexed: 09/11/2023]
Abstract
Pulse proteins as a sustainable protein source have attracted increasing interest in food development, but pulse proteins are generally less surface active than dairy proteins. This work introduces lentil protein (LP)-based fibrillar gel particles (FGPs) fabricated from heat-induced LP fibrillar aggregates by 1, 4, 8, and 16 h of heating, followed by particle reduction using sonication. The heating time significantly impacts the FGPs particle size and surface hydrophobicity. The FGP prepared by 4 h of heating (FGP-4) showed a small size (<200 nm) and homogeneous size distribution while possessing significantly increased surface hydrophobicity compared to untreated LP. Such structural features made FGP-4 better adsorb at the O/W interface and then completely covered the oil droplet surface, leading to homogeneous emulsions of small size (22.33 μm) and superior long-term stability without creaming for 30 days. In addition, the dispersed FGP in the bulk phase could develop interactions among each other, leading to improved emulsion viscosity and texture without oil droplet size change. This finding suggests that constructing fibril-type gel particles can provide a new strategy for forming superior O/W emulsions with improved stability from plant proteins.
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Affiliation(s)
- Yeon-Ji Jo
- Department of Marine Bio Food Science, Gangneung-Wonju National University, Gangneung, Gangwon 25457, Republic of Korea
| | - Yifu Chu
- Department of Agricultural, Food & Nutritional Science, University of Alberta, Edmonton, Alberta T6G 2P5, Canada
| | - Lingyun Chen
- Department of Agricultural, Food & Nutritional Science, University of Alberta, Edmonton, Alberta T6G 2P5, Canada.
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15
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Wu M, He X, Feng D, Li H, Han D, Li Q, Zhao B, Li N, Liu T, Wang J. The Effect of High Pressure Homogenization on the Structure of Dual-Protein and Its Emulsion Functional Properties. Foods 2023; 12:3358. [PMID: 37761067 PMCID: PMC10529657 DOI: 10.3390/foods12183358] [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: 08/03/2023] [Revised: 08/29/2023] [Accepted: 09/04/2023] [Indexed: 09/29/2023] Open
Abstract
It has been proven that high-pressure homogenization (HPH) could improve the functional properties of proteins by modifying their structure. This study researched the effect of HPH on the structural and functional properties of whey-soy dual-protein (Soy Protein Isolation-Whey Protein Isolation, SPI-WPI). Different protein solution samples were treated with HPH at 30, 60, 90, 120 and 150 MPa, and the structure changed under different pressures was analyzed by measuring particle size, zeta potential, Fourier infrared spectrum (FTIR), fluorescence spectrum and scanning electron microscope (SEM). The results showed that HPH significantly reduced the particle size of SPI-WPI, changed the secondary and tertiary structures and improved the hydrophobic interaction between molecules. In addition, HPH significantly improved the solubility and emulsification of all proteins, and the improvement effect on SPI-WPI was significantly better than SPI and WPI. It was found that SPI-WPI treated with 60 MPa had the best physicochemical properties. Secondly, we researched the effect of HPH by 60 MPa on the emulsion properties of SPI-WPI. In this study, the SPI-WPI had the lowest surface tension compared to a single protein after HPH treatment. The emulsion droplet size was obviously decreased, and the elastic properties and physical stability of SPI-WPI emulsion were significantly enhanced. In conclusion, this study will provide a theoretical basis for the application of HPH in modifying the structure of dual-protein to improve its development and utilization in liquid specialty food.
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Affiliation(s)
- Meishan Wu
- Institute of Food and Nutrition Development, Ministry of Agriculture and Rural Affairs, Beijing 100081, China
- The Key Laboratory of Food Resources Monitoring and Nutrition Evaluation, Ministry of Agriculture and Rural Affairs, Beijing 100081, China
| | - Xiaoye He
- Institute of Food and Nutrition Development, Ministry of Agriculture and Rural Affairs, Beijing 100081, China
- The Key Laboratory of Food Resources Monitoring and Nutrition Evaluation, Ministry of Agriculture and Rural Affairs, Beijing 100081, China
| | - Duo Feng
- Institute of Food and Nutrition Development, Ministry of Agriculture and Rural Affairs, Beijing 100081, China
- The Key Laboratory of Food Resources Monitoring and Nutrition Evaluation, Ministry of Agriculture and Rural Affairs, Beijing 100081, China
| | - Hu Li
- Institute of Food and Nutrition Development, Ministry of Agriculture and Rural Affairs, Beijing 100081, China
- The Key Laboratory of Food Resources Monitoring and Nutrition Evaluation, Ministry of Agriculture and Rural Affairs, Beijing 100081, China
| | - Di Han
- Institute of Food and Nutrition Development, Ministry of Agriculture and Rural Affairs, Beijing 100081, China
- The Key Laboratory of Food Resources Monitoring and Nutrition Evaluation, Ministry of Agriculture and Rural Affairs, Beijing 100081, China
| | - Qingye Li
- Institute of Food and Nutrition Development, Ministry of Agriculture and Rural Affairs, Beijing 100081, China
- The Key Laboratory of Food Resources Monitoring and Nutrition Evaluation, Ministry of Agriculture and Rural Affairs, Beijing 100081, China
| | - Boya Zhao
- Institute of Food and Nutrition Development, Ministry of Agriculture and Rural Affairs, Beijing 100081, China
- The Key Laboratory of Food Resources Monitoring and Nutrition Evaluation, Ministry of Agriculture and Rural Affairs, Beijing 100081, China
| | - Na Li
- Institute of Food and Nutrition Development, Ministry of Agriculture and Rural Affairs, Beijing 100081, China
- The Key Laboratory of Food Resources Monitoring and Nutrition Evaluation, Ministry of Agriculture and Rural Affairs, Beijing 100081, China
| | - Tianxin Liu
- Institute of Food and Nutrition Development, Ministry of Agriculture and Rural Affairs, Beijing 100081, China
- The Key Laboratory of Food Resources Monitoring and Nutrition Evaluation, Ministry of Agriculture and Rural Affairs, Beijing 100081, China
| | - Jing Wang
- Institute of Food and Nutrition Development, Ministry of Agriculture and Rural Affairs, Beijing 100081, China
- The Key Laboratory of Food Resources Monitoring and Nutrition Evaluation, Ministry of Agriculture and Rural Affairs, Beijing 100081, China
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16
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Wang T, Wang N, Dai Y, Yu D, Cheng J. Interfacial adsorption properties, rheological properties and oxidation kinetics of oleogel-in-water emulsion stabilized by hemp seed protein. Food Hydrocoll 2023. [DOI: 10.1016/j.foodhyd.2022.108402] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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17
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Berton-Carabin C, Villeneuve P. Targeting Interfacial Location of Phenolic Antioxidants in Emulsions: Strategies and Benefits. Annu Rev Food Sci Technol 2023; 14:63-83. [PMID: 36972155 DOI: 10.1146/annurev-food-060721-021636] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/29/2023]
Abstract
It is important to have larger proportions of health-beneficial polyunsaturated lipids in foods, but these nutrients are particularly sensitive to oxidation, and dedicated strategies must be developed to prevent this deleterious reaction. In food oil-in-water emulsions, the oil-water interface is a crucial area when it comes to the initiation of lipid oxidation. Unfortunately, most available natural antioxidants, such as phenolic antioxidants, do not spontaneously position at this specific locus. Achieving such a strategic positioning has therefore been an active research area, and various routes have been proposed: lipophilizing phenolic acids to confer them with an amphiphilic character; functionalizing biopolymer emulsifiers through covalent or noncovalent interactions with phenolics; or loading Pickering particles with natural phenolic compounds to yield interfacial antioxidant reservoirs. We herein review the principles and efficiency of these approaches to counteract lipid oxidation in emulsions as well as their advantages and limitations.
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Affiliation(s)
- Claire Berton-Carabin
- INRAE, UR BIA, Nantes, France;
- Laboratory of Food Process Engineering, Wageningen University, Wageningen, Netherlands
| | - Pierre Villeneuve
- CIRAD, UMR Qualisud, Montpellier, France;
- Qualisud, University of Montpellier, Avignon Université, CIRAD, Institut Agro, IRD, Université de La Réunion, Montpellier, France
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18
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Guo Y, Liu C, Wang Y, Ren S, Zheng X, Zhang J, Cheng T, Guo Z, Wang Z. Impact of Cavitation Jet on the Structural, Emulsifying Features and Interfacial Features of Soluble Soybean Protein Oxidized Aggregates. Foods 2023; 12:foods12050909. [PMID: 36900426 PMCID: PMC10000764 DOI: 10.3390/foods12050909] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2023] [Revised: 02/18/2023] [Accepted: 02/20/2023] [Indexed: 02/24/2023] Open
Abstract
A cavitation jet can enhance food proteins' functionalities by regulating solvable oxidized soybean protein accumulates (SOSPI). We investigated the impacts of cavitation jet treatment on the emulsifying, structural and interfacial features of soluble soybean protein oxidation accumulate. Findings have shown that radicals in an oxidative environment not only induce proteins to form insoluble oxidative aggregates with a large particle size and high molecular weight, but also attack the protein side chains to form soluble small molecular weight protein aggregates. Emulsion prepared by SOSPI shows worse interface properties than OSPI. A cavitation jet at a short treating time (<6 min) has been shown to break the core aggregation skeleton of soybean protein insoluble aggregates, and insoluble aggregates into soluble aggregates resulting in an increase of emulsion activity (EAI) and constancy (ESI), and a decrease of interfacial tension from 25.15 to 20.19 mN/m. However, a cavitation jet at a long treating time (>6 min) would cause soluble oxidized aggregates to reaggregate through an anti-parallel intermolecular β-sheet, which resulted in lower EAI and ESI, and a higher interfacial tension (22.44 mN/m). The results showed that suitable cavitation jet treatment could adjust the structural and functional features of SOSPI by targeted regulated transformation between the soluble and insoluble components.
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19
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Zhang J, Xu D, Cao Y. Physical stability, microstructure and interfacial properties of solid-oil-in-water (S/O/W) emulsions stabilized by sodium caseinate/xanthan gum complexes. Food Res Int 2023; 164:112370. [PMID: 36737958 DOI: 10.1016/j.foodres.2022.112370] [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: 08/31/2022] [Revised: 12/07/2022] [Accepted: 12/24/2022] [Indexed: 12/28/2022]
Abstract
Calcium carbonate (CaCO3) has poor suspension stability, which severely limits its application in food processing and products. In this study, sodium caseinate (NaCas) and sodium caseinate (NaCas)-xanthan gum (XG) mixtures were compared for the stable preparation of solid/oil/water (S/O/W) emulsions for the delivery of calcium carbonate (CaCO3) to solve the problem of poor suspension stability. The physical stability, particle size distribution, and microstructure of S/O/W emulsions were investigated to prove the successful construction of the system. The dynamic surface pressure and surface swelling properties of 2.0 wt% NaCas with different concentrations of XG were investigated to clarify the effect of interfacial properties of NaCas-XG mixtures on the emulsion stability of S/O/W emulsions. The results showed that the addition of XG resulted in enhanced physical stability, reduced particle size distribution, and enhanced encapsulation effect of the emulsion, forming a more three-dimensional core-shell structure via dendritic links. XG had a significant effect on the dynamic properties of the NaCas adsorption membrane: NaCas interacted with XG and the diffusion (kdiff) of NaCas to the interface decreased in short adsorption time, thus limiting the protein adsorption effectiveness; the presence of XG reduced the penetration (kP) and rearrangement (kR) rates at the interface during long adsorption times. Meanwhile, the NaCas-XG mixture has a high swelling elasticity. The results of this study can be used to improve the quality of related emulsion products or to prepare delivery systems for bioactive compounds.
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Affiliation(s)
- Jie Zhang
- Beijing Advanced Innovation Center for Food Nutrition and Human Health (BTBU), School of Food and Health, Beijing Engineering and Technology Research Center of Food Additives, Beijing Higher Institution Engineering Research Center of Food Additives and Ingredients, Beijing Key Laboratory of Flavor Chemistry, Beijing Laboratory for Food Quality and Safety, Beijing Technology & Business University, Beijing, China
| | - Duoxia Xu
- Beijing Advanced Innovation Center for Food Nutrition and Human Health (BTBU), School of Food and Health, Beijing Engineering and Technology Research Center of Food Additives, Beijing Higher Institution Engineering Research Center of Food Additives and Ingredients, Beijing Key Laboratory of Flavor Chemistry, Beijing Laboratory for Food Quality and Safety, Beijing Technology & Business University, Beijing, China.
| | - Yanping Cao
- Beijing Advanced Innovation Center for Food Nutrition and Human Health (BTBU), School of Food and Health, Beijing Engineering and Technology Research Center of Food Additives, Beijing Higher Institution Engineering Research Center of Food Additives and Ingredients, Beijing Key Laboratory of Flavor Chemistry, Beijing Laboratory for Food Quality and Safety, Beijing Technology & Business University, Beijing, China.
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20
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Properties and microstructure of pickering emulsion synergistically stabilized by silica particles and soy hull polysaccharides. Food Hydrocoll 2023. [DOI: 10.1016/j.foodhyd.2022.108084] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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21
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Liao W, Elaissari A, Dumas E, Gharsallaoui A. Effect of trans-cinnamaldehyde or citral on sodium caseinate: Interfacial rheology and fluorescence quenching properties. Food Chem 2023; 400:134044. [DOI: 10.1016/j.foodchem.2022.134044] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2022] [Revised: 08/22/2022] [Accepted: 08/25/2022] [Indexed: 11/16/2022]
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22
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Kontogiorgos V, Prakash S. Adsorption kinetics and dilatational rheology of plant protein concentrates at the air- and oil-water interfaces. Food Hydrocoll 2023. [DOI: 10.1016/j.foodhyd.2023.108486] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
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23
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The Improvement of Dispersion Stability and Bioaccessibility of Calcium Carbonate by Solid/Oil/Water (S/O/W) Emulsion. Foods 2022; 11:foods11244044. [PMID: 36553786 PMCID: PMC9777969 DOI: 10.3390/foods11244044] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2022] [Revised: 12/12/2022] [Accepted: 12/13/2022] [Indexed: 12/16/2022] Open
Abstract
Solid/oil/water (S/O/W) emulsion loaded with calcium carbonate (CaCO3) was constructed to raise the dispersion stability and bioaccessibility. In the presence or absence of sodium caseinate (NaCas), the particle size, Zeta-potential, physical stability, and apparent viscosity of stabilized S/O/W emulsions with different gelatin (GEL) concentrations (0.1~8.0 wt%) were compared. Combined with a confocal laser scanning microscope (CLSM), cryoscanning electron microscope (Cryo-SEM), and interfacial adsorption characteristics, the stabilization mechanism was analyzed. The bioavailability of CaCO3 was investigated in a simulated gastrointestinal tract (GIT) model. The S/O/W-emulsion droplets prepared by the NaCas-GEL composite have a smaller particle size, higher Zeta-potential, larger apparent viscosity, and better physical stability compared with GEL as a single emulsifier. CLSM results confirmed that CaCO3 powder was encapsulated in emulsion droplets. The Cryo-SEM results and interfacial adsorption characteristics analysis indicated that the NaCas-GEL binary composite could effectively reduce the interfacial tension, and the droplets form a denser three-dimensional network space structure with a shell-core structure which enhanced the stability of the system. GIT studies showed that the droplets presented higher CaCO3 bioaccessibility than the CaCO3 powder. This study enriched the theory of the S/O/W transfer system and provided theoretical support for the development of CaCO3 application in liquid food.
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24
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Li M, Sun Y, McClements DJ, Yao X, Ma C, Liu X, Liu F. Interfacial engineering approaches to improve emulsion performance: Properties of oil droplets coated by mixed, multilayer, or conjugated lactoferrin-hyaluronic acid interfaces. Food Hydrocoll 2022. [DOI: 10.1016/j.foodhyd.2022.107938] [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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25
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The interfacial behavior and long-term stability of emulsions stabilized by gum arabic and sugar beet pectin. Carbohydr Polym 2022; 291:119623. [DOI: 10.1016/j.carbpol.2022.119623] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2022] [Revised: 05/11/2022] [Accepted: 05/11/2022] [Indexed: 01/15/2023]
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26
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The adsorption characteristics of 2D fibril and 3D hydrogel aggregates at the O/W interface combining molecular dynamics simulation. Food Hydrocoll 2022. [DOI: 10.1016/j.foodhyd.2022.107537] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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27
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Shear and dilatational rheological properties of vegetable proteins at the air/water interface. Food Hydrocoll 2022. [DOI: 10.1016/j.foodhyd.2021.107472] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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28
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Shen Q, Xiong T, Zheng W, Luo Y, Peng W, Dai J, Song R, Li Y, Liu S, Li B, Chen Y. The Effects of Thermal Treatment on Emulsifying Properties of Soy Protein Isolates: Interfacial Rheology and Quantitative Proteomic Analysis. Food Res Int 2022; 157:111326. [DOI: 10.1016/j.foodres.2022.111326] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2022] [Revised: 04/26/2022] [Accepted: 04/28/2022] [Indexed: 11/17/2022]
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29
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Li J, Zhang B, Ye J, Sun F, Liu Y, Yang N, Nishinari K. Nonlinear dilatational rheology of different protein aggregates at the oil-water interface. SOFT MATTER 2022; 18:2383-2393. [PMID: 35265956 DOI: 10.1039/d1sm01735g] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Proteins tend to self-assemble into different morphological aggregates such as nanoparticles or fibrils during heat treatment depending on the processing conditions. The protein aggregates exhibit excellent interfacial activity and even better ability to stabilize emulsions than native proteins. The interfacial rheological properties at the oil-water interface play a very important role in emulsion stability, among which the interfacial nonlinear rheology is closely related to their ability to resist large perturbation. However, there are very few studies reporting the nonlinear interfacial rheological behavior of protein aggregates at the oil-water interface. In this study, β-lactoglobulin fibrous aggregates (F) and nanoparticle aggregates (NP) were prepared, and the adsorption kinetics and dilatational nonlinear rheological behavior of β-lactoglobulin aggregates at the oil-water interface under large amplitude deformation were studied using a pendant drop tensiometer, and compared with those of native proteins. From the adsorption experiments, the adsorption of protein aggregates, especially fibrils, was faster than that of native proteins in the early stage, while in the late stage, the native proteins displayed a significantly higher degree of rearrangement than the fibrils. The surface hydrophobicity and the short fibrils present mainly determine the properties of the fibril interface, while the behavior of the nanoparticle interface was significantly influenced by the size and charge properties of the nanoparticles. From the dilatational experiment, the Lissajous plots revealed that the F interface at all pHs evaluated and the βlg interface at pH 5.8 displayed strain softening in both expansion and compression processes, while the NP interface at all pHs and βlg interface at pH 2 and pH 7 displayed strain softening in expansion and strain hardening in compression processes. The nonlinear response of the protein aggregates at the oil-water interface was more obvious at pH 5.8. The modulus change from frequency sweeps revealed that the fibril interface was strong but not very structured in contrast to that formed by the native proteins which displays high structuration although weak in strength, whereas the strength of the interface formed by protein nanoparticles is in between, but more sensitive to the surface charge.
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Affiliation(s)
- Jing Li
- Glyn O. Phillips Hydrocolloid Research Centre, National "111" Center for Cellular Regulation and Molecular Pharmaceutics, Key Laboratory of Fermentation Engineering of Ministry of Education, Key Laboratory of Industrial Microbiology in Hubei Province, Department of Bioengineering and Food Science, Hubei University of Technology, Wuhan 430068, China
| | - Bao Zhang
- Glyn O. Phillips Hydrocolloid Research Centre, National "111" Center for Cellular Regulation and Molecular Pharmaceutics, Key Laboratory of Fermentation Engineering of Ministry of Education, Key Laboratory of Industrial Microbiology in Hubei Province, Department of Bioengineering and Food Science, Hubei University of Technology, Wuhan 430068, China
| | - Jing Ye
- Glyn O. Phillips Hydrocolloid Research Centre, National "111" Center for Cellular Regulation and Molecular Pharmaceutics, Key Laboratory of Fermentation Engineering of Ministry of Education, Key Laboratory of Industrial Microbiology in Hubei Province, Department of Bioengineering and Food Science, Hubei University of Technology, Wuhan 430068, China
| | - Fusheng Sun
- Glyn O. Phillips Hydrocolloid Research Centre, National "111" Center for Cellular Regulation and Molecular Pharmaceutics, Key Laboratory of Fermentation Engineering of Ministry of Education, Key Laboratory of Industrial Microbiology in Hubei Province, Department of Bioengineering and Food Science, Hubei University of Technology, Wuhan 430068, China
| | - Yantao Liu
- Glyn O. Phillips Hydrocolloid Research Centre, National "111" Center for Cellular Regulation and Molecular Pharmaceutics, Key Laboratory of Fermentation Engineering of Ministry of Education, Key Laboratory of Industrial Microbiology in Hubei Province, Department of Bioengineering and Food Science, Hubei University of Technology, Wuhan 430068, China
| | - Nan Yang
- Glyn O. Phillips Hydrocolloid Research Centre, National "111" Center for Cellular Regulation and Molecular Pharmaceutics, Key Laboratory of Fermentation Engineering of Ministry of Education, Key Laboratory of Industrial Microbiology in Hubei Province, Department of Bioengineering and Food Science, Hubei University of Technology, Wuhan 430068, China
- Food Hydrocolloid International Science and Technology Cooperation Base of Hubei Province, Hubei University of Technology, Wuhan 430068, China.
| | - Katsuyoshi Nishinari
- Glyn O. Phillips Hydrocolloid Research Centre, National "111" Center for Cellular Regulation and Molecular Pharmaceutics, Key Laboratory of Fermentation Engineering of Ministry of Education, Key Laboratory of Industrial Microbiology in Hubei Province, Department of Bioengineering and Food Science, Hubei University of Technology, Wuhan 430068, China
- Food Hydrocolloid International Science and Technology Cooperation Base of Hubei Province, Hubei University of Technology, Wuhan 430068, China.
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Farooq S, Ahmad MI, Abdullah. Interfacial rheology of sodium caseinate/high acyl gellan gum complexes: Stabilizing oil-in-water emulsions. Curr Res Food Sci 2022; 5:234-242. [PMID: 35128466 PMCID: PMC8800049 DOI: 10.1016/j.crfs.2022.01.012] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2021] [Revised: 01/05/2022] [Accepted: 01/12/2022] [Indexed: 11/30/2022] Open
Abstract
In this work, the effects of pH and high acyl gellan gum concentration on the adsorption kinetics and interfacial dilatational rheology of sodium caseinate/high acyl gellan gum (CN/HG) complexes were investigated using a pendant drop tensiometer. In addition, stability related properties including interfacial protein concentration, droplet charge, size, microstructure and creaming index of emulsions were studied at different HG concentration (0–0.2 wt%) and pH values (4, 5.5 and 7). The results showed that HG adsorbed onto the CN mainly through electrostatic interactions which could lead to increase the interfacial pressure (π), rates of protein diffusion (kdiff), and molecular penetration (kp). The CN/HG complexes formed thick adsorption layers around the oil droplets which significantly increased the surface dilatational modulus with the increasing HG concentration. The CN/HG complexes appeared to form more elastic interfacial films after a long-term adsorption time compared with CN alone, which could reduce the droplet coalescence and thus prevented the growth of emulsion droplets. All four phosphorylated proteins of CN (αs1-, αs2-, β-, and κ-casein) were adsorbed at the oil-water (O/W) interface as confirmed by sodium dodecyl sulphate polyacrylamide gel electrophoresis (SDS-PAGE), and surface protein coverage increased progressively with increasing HG concentration at pH 5.5, but decreased at pH 7. The CN/HG stabilized emulsions at pH 5.5 revealed the higher net charges and smaller z-average diameters than those at pH 4 and pH 7. This study provides valuable information on the use of CN/HG complexes to improve the stability and texture of food emulsions. •Interactions between sodium caseinate (CN) and high acyl gellan gum (HG) studied. •At pH 5.5, CN/HG interaction was mainly driven by electrostatic attractions. •CN/HG complex improved the adsorption of CN at the oil-water interface. •CN/HG complex could form stronger interfacial films than protein alone. •Cooperative adsorption onto oil-water interface improved emulsion stability.
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Qin X, Yu J, Wang Q, Zhang H, Chen H, Hu Z, Lv Q, Liu G. Preparation of camellia oil pickering emulsion stabilized by glycated whey protein isolate and chitooligosaccharide: Effect on interfacial behavior and emulsion stability. Lebensm Wiss Technol 2022. [DOI: 10.1016/j.lwt.2021.112515] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
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Reinforced pickering emulsions stabilized by desalted duck egg white nanogels with Ca2+ as binding agents. Food Hydrocoll 2021. [DOI: 10.1016/j.foodhyd.2021.106974] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Adsorption kinetics and dilatational rheological properties of recombinant Pea Albumin-2 at the oil-water interface. Food Hydrocoll 2021. [DOI: 10.1016/j.foodhyd.2021.106866] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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López-Castejón ML, Bengoechea C, Alguacil JM, Carrera C. Prebiotic food foams stabilized by inulin and β-lactoglobulin. Food Hydrocoll 2021. [DOI: 10.1016/j.foodhyd.2021.106829] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Interfacial properties of milk proteins: A review. Adv Colloid Interface Sci 2021; 295:102347. [PMID: 33541692 DOI: 10.1016/j.cis.2020.102347] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2020] [Revised: 12/14/2020] [Accepted: 12/14/2020] [Indexed: 12/22/2022]
Abstract
The interfacial properties of dairy proteins are of great interest to the food industry. Food manufacturing involves various environmental conditions and multiple processes that significantly alter the structure and colloidal stability of food materials. The effects of concentration, pH, heat treatment, addition of salts etc., have considerable influence on the surface activity of proteins and the mechanical properties of the interfacial protein films. Studies to date have established some understanding of the links between environmental and processing related parameters and their impacts on interfacial behavior. Improvement in knowledge may allow better design of interfacial protein structures for different food applications. This review examines the effects of environmental and processing conditions on the interfacial properties of dairy proteins with emphasis on interfacial tension dynamics, dilatational and surface shear rheological properties. The most commonly used surface analytical techniques along with relevant methods are also addressed.
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Dynamic adsorption and interfacial rheology of whey protein isolate at oil-water interfaces: Effects of protein concentration, pH and heat treatment. Food Hydrocoll 2021. [DOI: 10.1016/j.foodhyd.2021.106640] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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Panchal B, Truong T, Prakash S, Bansal N, Bhandari B. Influence of Emulsifiers and Dairy Ingredients on Manufacturing, Microstructure, and Physical Properties of Butter. Foods 2021; 10:1140. [PMID: 34065288 PMCID: PMC8160933 DOI: 10.3390/foods10051140] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2021] [Revised: 05/09/2021] [Accepted: 05/18/2021] [Indexed: 11/16/2022] Open
Abstract
The influence of emulsifiers and dairy solids on churning and physical attributes of butter was investigated. Commercial dairy cream was blended with each of the ingredients (0.5%, w/w) separately, aged overnight (10 °C), and churned (10 °C) into butter. The employed additives showed a distinctive impact on the macroscopic properties of butter without largely affecting the melting behavior. In fresh butter, polyglycerol polyricinoleate (PGPR) emulsifier having dominated hydrophobic moieties significantly (p < 0.05) enhanced the softness. Among dairy solids, sodium caseinate (SC) was the most effective in reducing the solid fat fraction, hardness, and elastic modulus (G'), while whey protein isolate (WPI) and whole milk powder (WMP) produced significantly harder, stiffer, and more adhesive butter texture. As per tribological analysis, PGPR, Tween 80, and SC lowered the friction-coefficient of butter, indicating an improved lubrication property of the microstructure. The extent of butter-setting during 28 days of storage (5 °C) varied among the samples, and in specific, appeared to be delayed in presence of WPI, WMP, and buttermilk solids. The findings of the study highlighted the potential of using applied emulsifiers and dairy-derived ingredients in modifying the physical functionality of butter and butter-like churned emulsions in addition to a conventional cream-ageing process.
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Affiliation(s)
- Bhavesh Panchal
- ARC Dairy Innovation Hub, School of Agriculture and Food Sciences, University of Queensland, Brisbane, QLD 4072, Australia; (B.P.); (S.P.); (N.B.)
| | - Tuyen Truong
- School of Science, RMIT University, Melbourne, VIC 3028, Australia;
| | - Sangeeta Prakash
- ARC Dairy Innovation Hub, School of Agriculture and Food Sciences, University of Queensland, Brisbane, QLD 4072, Australia; (B.P.); (S.P.); (N.B.)
| | - Nidhi Bansal
- ARC Dairy Innovation Hub, School of Agriculture and Food Sciences, University of Queensland, Brisbane, QLD 4072, Australia; (B.P.); (S.P.); (N.B.)
| | - Bhesh Bhandari
- ARC Dairy Innovation Hub, School of Agriculture and Food Sciences, University of Queensland, Brisbane, QLD 4072, Australia; (B.P.); (S.P.); (N.B.)
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Bildanau E, Vikhrenko V. Adsorption time scales of cluster-forming systems. THE EUROPEAN PHYSICAL JOURNAL. E, SOFT MATTER 2021; 44:51. [PMID: 33844108 DOI: 10.1140/epje/s10189-021-00059-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/02/2020] [Accepted: 03/16/2021] [Indexed: 06/12/2023]
Abstract
A microscopic model of adsorption in cluster forming systems with competing interaction is considered. The adsorption process is described by the master equation and modelled by a kinetic Monte Carlo method. The evolution of the particle concentration and interaction energy during the adsorption of particles on a plane triangular lattice is investigated. The simulation results show a diverse behavior of the system time evolution depending on the temperature and chemical potential and finally on the formation of clusters in the system. The characteristic relaxation times of adsorption vary in several orders of magnitude depending on the thermodynamic parameters of the final equilibrium state of the adsorbate. A very fast adsorption of particles is observed for highly ordered adsorbate equilibrium states.
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Affiliation(s)
- Eldar Bildanau
- Belarusian State Technological University, 220006, Minsk, Belarus.
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40
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Effects of fatty acid saturation degree on salt-soluble pork protein conformation and interfacial adsorption characteristics at the oil/water interface. Food Hydrocoll 2021. [DOI: 10.1016/j.foodhyd.2020.106472] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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41
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Chernysheva MG, Kasperovich AV, Skrabkova HS, Snitko AV, Arutyunyan AM, Badun GA. Lysozyme-dalargin self-organization at the aqueous-air and liquid-liquid interfaces. Colloids Surf B Biointerfaces 2021; 202:111695. [PMID: 33740631 DOI: 10.1016/j.colsurfb.2021.111695] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2020] [Revised: 12/24/2020] [Accepted: 03/10/2021] [Indexed: 01/04/2023]
Abstract
An experimental study of protein-peptide binding was performed by means of radiochemical and spectroscopic methods. Lysozyme and dalargin were chosen due to their biological and physiological importance. By means of tensiometry and radiochemical assays, it was found that dalargin possesses rather high surface activity at the aqueous-air and aqueous-p-xylene interfaces to be substituted by protein. Dalargin forms a hydrophobic complex with lysozyme in which the secondary structure of lysozyme is preserved. When lysozyme forms a mixed adsorption layer with dalargin at the aqueous-air surface, the peptide prevents protein from concentrating in the subsurface monolayer. In the presence of p-xylene protein in the interface, reorganization occurs quickly, so there is no lag in the interfacial tension time dependence. The interfacial tension in this case is controlled by protein and/or protein-peptide complexes. An increase in the enzymatic activity of lysozyme in the presence of dalargin was confirmed by a docking model that suggests the formation of hydrogen bonds between dalargin and amino acid residues in the active site.
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Affiliation(s)
| | | | - Hanna S Skrabkova
- Dpt. Chemistry, Lomonosov Moscow State University, 119991, Moscow, Russia
| | - Alexey V Snitko
- Dpt. Chemistry, Lomonosov Moscow State University, 119991, Moscow, Russia
| | - Alexander M Arutyunyan
- Belozersky Institute of Physico-Chemical Biology, Lomonosov Moscow State University, 119992, Moscow, Russia
| | - Gennadii A Badun
- Dpt. Chemistry, Lomonosov Moscow State University, 119991, Moscow, Russia
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42
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Zhang D, Zhang Y, Huang Y, Chen L, Bao P, Fang H, Zhou C. l-Arginine and l-Lysine Alleviate Myosin from Oxidation: Their Role in Maintaining Myosin's Emulsifying Properties. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2021; 69:3189-3198. [PMID: 33496584 DOI: 10.1021/acs.jafc.0c06095] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
This study investigated the alleviative effects of l-arginine and l-lysine on the emulsifying properties and structural changes of myosin under hydroxyl radical (·OH) stress. The results showed that ·OH decreased the emulsifying activity index and emulsifying stability index but increased the creaming index and droplet size of a soybean oil-myosin emulsion (SOME). Confocal laser scanning microscopy demonstrated that ·OH caused larger and more inhomogeneous SOME droplets. l-Arginine and l-lysine effectively alleviated ·OH-induced destructive effects on the emulsifying properties of myosin. In addition, ·OH increased the extent of protein carbonylation and dityrosine formation, surface hydrophobicity, and β-sheet content, but decreased the tryptophan fluorescence intensity, solubility, total sulfhydryl, and α-helix content of myosin. Although l-lysine increased dityrosine fluorescence intensity, l-arginine and l-lysine effectively alleviated the aforementioned structural changes of myosin. Therefore, l-arginine and l-lysine could mitigate ·OH-induced structural changes of myosin, which enabled myosin to maintain its emulsifying capacity under oxidative stress.
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Affiliation(s)
- Daojing Zhang
- Engineering Research Center of Bio-Process, Ministry of Education, Hefei University of Technology, Hefei 230009, Anhui, P. R. China
- School of Food and Biological Engineering, Hefei University of Technology, Hefei 230009, P. R. China
| | - Yinyin Zhang
- Engineering Research Center of Bio-Process, Ministry of Education, Hefei University of Technology, Hefei 230009, Anhui, P. R. China
- School of Food and Biological Engineering, Hefei University of Technology, Hefei 230009, P. R. China
| | - Yajun Huang
- Engineering Research Center of Bio-Process, Ministry of Education, Hefei University of Technology, Hefei 230009, Anhui, P. R. China
- School of Food and Biological Engineering, Hefei University of Technology, Hefei 230009, P. R. China
| | - Li Chen
- Engineering Research Center of Bio-Process, Ministry of Education, Hefei University of Technology, Hefei 230009, Anhui, P. R. China
- School of Food and Biological Engineering, Hefei University of Technology, Hefei 230009, P. R. China
| | - Pengqi Bao
- Engineering Research Center of Bio-Process, Ministry of Education, Hefei University of Technology, Hefei 230009, Anhui, P. R. China
- School of Food and Biological Engineering, Hefei University of Technology, Hefei 230009, P. R. China
| | - Hongmei Fang
- Engineering Research Center of Bio-Process, Ministry of Education, Hefei University of Technology, Hefei 230009, Anhui, P. R. China
- School of Food and Biological Engineering, Hefei University of Technology, Hefei 230009, P. R. China
| | - Cunliu Zhou
- Engineering Research Center of Bio-Process, Ministry of Education, Hefei University of Technology, Hefei 230009, Anhui, P. R. China
- School of Food and Biological Engineering, Hefei University of Technology, Hefei 230009, P. R. China
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Böcker L, Bertsch P, Wenner D, Teixeira S, Bergfreund J, Eder S, Fischer P, Mathys A. Effect of Arthrospira platensis microalgae protein purification on emulsification mechanism and efficiency. J Colloid Interface Sci 2021; 584:344-353. [PMID: 33070074 DOI: 10.1016/j.jcis.2020.09.067] [Citation(s) in RCA: 29] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2020] [Revised: 09/16/2020] [Accepted: 09/17/2020] [Indexed: 12/17/2022]
Abstract
In light of environmental concerns and changing consumer demands, efforts are increasing to replace frequently used animal-based emulsifiers. We demonstrate the interfacial network formation and emulsifying potential of Arthrospira platensis protein extracts and hypothesize a mechanistic change upon progressing purification. A microalgae suspension of A. platensis powder in phosphate buffer solution (pH 7, 0.1 M) was homogenized and insoluble components separated by centrifugation. Proteins were precipitated at the identified isoelectric point at pH 3.5 and diafiltrated. In interfacial shear rheology measurements, the build-up of an interfacial viscoelastic network was faster and final network strength increased with the degree of purification. It is suggested that isolated A. platensis proteins rapidly form an interconnected protein layer while coextracted surfactants impede protein adsorption for crude and soluble extracts. Emulsions with 20 vol % medium chain triglycerides (MCT) oil could be formed with all extracts of different degrees of purification. Normalized by protein concentration, smaller droplets could be stabilized with the isolated fractions. For potential applications in food, pharma and cosmetic product categories, the enhanced functionality has to be balanced against the loss in biomass while purifying microalgae proteins or other alternative single cell proteins.
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Affiliation(s)
- Lukas Böcker
- ETH Zurich, Department of Health Science and Technology, Institute of Food, Nutrition and Health, Sustainable Food Processing Laboratory, Schmelzbergstrasse 9, 8092 Zurich, Switzerland.
| | - Pascal Bertsch
- ETH Zurich, Department of Health Science and Technology, Institute of Food, Nutrition and Health, Food Process Engineering Laboratory, Schmelzbergstrasse 7, 8092 Zurich, Switzerland.
| | - David Wenner
- ETH Zurich, Department of Health Science and Technology, Institute of Food, Nutrition and Health, Sustainable Food Processing Laboratory, Schmelzbergstrasse 9, 8092 Zurich, Switzerland.
| | - Stephanie Teixeira
- ETH Zurich, Department of Health Science and Technology, Institute of Food, Nutrition and Health, Sustainable Food Processing Laboratory, Schmelzbergstrasse 9, 8092 Zurich, Switzerland.
| | - Jotam Bergfreund
- ETH Zurich, Department of Health Science and Technology, Institute of Food, Nutrition and Health, Food Process Engineering Laboratory, Schmelzbergstrasse 7, 8092 Zurich, Switzerland.
| | - Severin Eder
- ETH Zurich, Department of Health Science and Technology, Institute of Food, Nutrition and Health, Food Biochemistry Laboratory, Schmelzbergstrasse 9, 8092 Zurich, Switzerland.
| | - Peter Fischer
- ETH Zurich, Department of Health Science and Technology, Institute of Food, Nutrition and Health, Food Process Engineering Laboratory, Schmelzbergstrasse 7, 8092 Zurich, Switzerland.
| | - Alexander Mathys
- ETH Zurich, Department of Health Science and Technology, Institute of Food, Nutrition and Health, Sustainable Food Processing Laboratory, Schmelzbergstrasse 9, 8092 Zurich, Switzerland.
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Sha L, Koosis AO, Wang Q, True AD, Xiong YL. Interfacial dilatational and emulsifying properties of ultrasound-treated pea protein. Food Chem 2021; 350:129271. [PMID: 33618095 DOI: 10.1016/j.foodchem.2021.129271] [Citation(s) in RCA: 56] [Impact Index Per Article: 18.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2020] [Revised: 01/27/2021] [Accepted: 01/30/2021] [Indexed: 10/22/2022]
Abstract
In this study, the structural, interfacial, and emulsifying properties of high-intensity ultrasound (HUS)-treated pea protein isolate (PPIUS) were investigated. HUS at 50% amplitude and 57-60 W·cm-2 for 5 min markedly improved protein solubility (by 132%), surface hydrophobicity (by 173%), and reduced particle size (by 52%). These physicochemical changes in PPIUS led to more rapid protein adsorption at the oil-water interface, improved emulsifying activity (by 18-27%) and capacity (by 11%), and enhanced emulsion physical stability. The multilayer nature, albeit less elastic, of the interfacial membrane formed by PPIUS when compared to control protein (PPIC), based on dilatational testing, contributed to the above results. Moreover, PPIUS-stabilized emulsions exhibited a tendency of being less susceptible to lipid oxidation during storage. Thus, structure-modifying HUS may be a valuable processing technology for the manufacture of pea protein-based emulsion foods.
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Affiliation(s)
- Lei Sha
- College of Food Science and Engineering, Bohai University, Jinzhou, Liaoning 121013, China; Department of Animal and Food Sciences, University of Kentucky, Lexington, KY 40546, United States
| | - Aeneas O Koosis
- Department of Animal and Food Sciences, University of Kentucky, Lexington, KY 40546, United States
| | - Qingling Wang
- College of Food Science and Technology, Yangzhou University, Yangzhou, Jiangsu 214122, China
| | - Alma D True
- Department of Animal and Food Sciences, University of Kentucky, Lexington, KY 40546, United States
| | - Youling L Xiong
- Department of Animal and Food Sciences, University of Kentucky, Lexington, KY 40546, United States.
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Yuan G, Kienzle PA, Satija SK. Salting Up and Salting Down of Bovine Serum Albumin Layers at the Air-Water Interface. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2020; 36:15240-15246. [PMID: 33295178 DOI: 10.1021/acs.langmuir.0c02457] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
The surface adsorption of bovine serum albumin in pure water and salted aqueous solutions was studied by neutron reflection. With the contrast match technique, the surface excess in null reflecting water as a function of the protein concentration was revealed. It is found that, in a concentration range from 1 ppm (parts per million, mg/L) to 1000 ppm, without salts, the surface excess shows a profound peak at around 20 ppm; with salts, the surface excess increases steadily with the protein concentration. When the surface excess at a specific protein concentration is viewed, the introduction of sodium chloride causes either a salting down effect (surface adsorption decline) or a salting up effect (surface adsorption increase), depending upon the protein concentration. The salting up effect is observed at the low (∼1 ppm) and high (∼1000 ppm) concentrations, and the salting down effect dominates the intermediate concentration range. The change in solution pH relative to the isoelectric point (PI) can act as a simple indicator for the salting up or salting down behavior. When the solution pH is shifted toward the PI by adding salts, surface adsorption enhances; when the solution pH is shifted away from the PI by adding salts, surface adsorption declines.
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Affiliation(s)
- Guangcui Yuan
- Center for Neutron Research, National Institute of Standards and Technology, Gaithersburg, Maryland 20899, United States
- Department of Physics, Georgetown University, Washington, D.C. 20057, United States
| | - Paul A Kienzle
- Center for Neutron Research, National Institute of Standards and Technology, Gaithersburg, Maryland 20899, United States
| | - Sushil K Satija
- Center for Neutron Research, National Institute of Standards and Technology, Gaithersburg, Maryland 20899, United States
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46
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The role of conformational state of pH-shifted β-conglycinin on the oil/water interfacial properties and emulsifying capacities. Food Hydrocoll 2020. [DOI: 10.1016/j.foodhyd.2020.105990] [Citation(s) in RCA: 37] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
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47
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Alamdari S, Roeters SJ, Golbek TW, Schmüser L, Weidner T, Pfaendtner J. Orientation and Conformation of Proteins at the Air-Water Interface Determined from Integrative Molecular Dynamics Simulations and Sum Frequency Generation Spectroscopy. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2020; 36:11855-11865. [PMID: 32921055 DOI: 10.1021/acs.langmuir.0c01881] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Understanding the assembly of proteins at the air-water interface (AWI) informs the formation of protein films, emulsion properties, and protein aggregation. Determination of protein conformation and orientation at an interface is difficult to resolve with a single experimental or simulation technique alone. To date, the interfacial structure of even one of the most widely studied proteins, lysozyme, at the AWI remains unresolved. In this study, molecular dynamics (MD) simulations are used to determine if the protein adopts a side-on, head-on, or axial orientation at the AWI with two different forcefields, GROMOS-53a6 + SPC/E and a99SB-disp + TIP4P-D. Vibrational sum frequency generation (SFG) spectroscopy experiments and spectral SFG calculations validate consistency between the structure determined from MD and experiments. Overall, we show with strong agreement that lysozyme adopts an axial conformation at pH 7. Further, we provide molecular-level insight as to how pH influences the binding domains of lysozyme resulting in side-on adsorption near the isoelectric point of the lysozyme.
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Affiliation(s)
- Sarah Alamdari
- Department of Chemical Engineering, University of Washington, Seattle, Washington 98195-1750, United States
| | - Steven J Roeters
- Department of Chemistry, Aarhus University, Langelandsgade 140, 8000 Aarhus C, Denmark
| | - Thaddeus W Golbek
- Department of Chemistry, Aarhus University, Langelandsgade 140, 8000 Aarhus C, Denmark
| | - Lars Schmüser
- Department of Chemistry, Aarhus University, Langelandsgade 140, 8000 Aarhus C, Denmark
| | - Tobias Weidner
- Department of Chemistry, Aarhus University, Langelandsgade 140, 8000 Aarhus C, Denmark
| | - Jim Pfaendtner
- Department of Chemical Engineering, University of Washington, Seattle, Washington 98195-1750, United States
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48
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Li M, McClements DJ, Liu X, Liu F. Design principles of oil‐in‐water emulsions with functionalized interfaces: Mixed, multilayer, and covalent complex structures. Compr Rev Food Sci Food Saf 2020; 19:3159-3190. [DOI: 10.1111/1541-4337.12622] [Citation(s) in RCA: 35] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2020] [Revised: 07/25/2020] [Accepted: 07/28/2020] [Indexed: 11/26/2022]
Affiliation(s)
- Moting Li
- College of Food Science and Engineering Northwest A&F University Yangling Shaanxi China
| | | | - Xuebo Liu
- College of Food Science and Engineering Northwest A&F University Yangling Shaanxi China
| | - Fuguo Liu
- College of Food Science and Engineering Northwest A&F University Yangling Shaanxi China
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49
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Zhan F, Chen Y, Hu J, Youssef M, Korin A, Li J, Li B. Combining surface dilatational rheology and quantitative proteomics as a tool for understanding microstructures of air/water interfaces stabilized by sodium caseinate/tannic acid complex. Food Hydrocoll 2020. [DOI: 10.1016/j.foodhyd.2019.105627] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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50
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Hinderink EBA, Sagis L, Schroën K, Berton-Carabin CC. Behavior of plant-dairy protein blends at air-water and oil-water interfaces. Colloids Surf B Biointerfaces 2020; 192:111015. [PMID: 32416469 DOI: 10.1016/j.colsurfb.2020.111015] [Citation(s) in RCA: 39] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2020] [Revised: 04/01/2020] [Accepted: 04/03/2020] [Indexed: 11/29/2022]
Abstract
Recent work suggests that using blends of dairy and plant proteins could be a promising way to mitigate sustainability and functionality concerns. Many proteins form viscoelastic layers at fluid interfaces and provide physical stabilization to emulsion droplets; yet, the interfacial behavior of animal-plant protein blends is greatly underexplored. In the present work, we considered pea protein isolate (PPI) as a model legume protein, which was blended with well-studied dairy proteins (whey protein isolate (WPI) or sodium caseinate (SC)). We performed dilatational rheology at the air-water and oil-water interface using an automated drop tensiometer to chart the behavior and structure of the interfacial films, and to highlight differences between films made with either blends, or their constituting components only. The rheological response of the blend-stabilized interfaces deviated from what could be expected from averaging those of the individual proteins and depended on the proteins used; e.g. at the air-water interface, the response of the caseinate-pea protein blend was similar to that of PPI only. At the oil-water interface, the PPI and WPI-PPI interfaces gave comparable responses upon deformation and formed less elastic layers compared to the WPI-stabilized interface. Blending SC with PPI gave stronger interfacial layers compared to SC alone, but the layers were less stiff compared to the layers formed with WPI, PPI and WPI-PPI. In general, higher elastic moduli and more rigid interfacial layers were formed at the air-water interface, compared to the oil-water interface, except for PPI.
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Affiliation(s)
- Emma B A Hinderink
- TiFN, P.O. Box 557, 6700 AN, Wageningen, the Netherlands; Laboratory of Food Process Engineering, Bornse Weilanden 9, 6708 WG Wageningen, the Netherlands.
| | - Leonard Sagis
- Laboratory of Physics and Physical Chemistry of Foods, Bornse Weilanden 9, 6708 WG Wageningen, the Netherlands
| | - Karin Schroën
- Laboratory of Food Process Engineering, Bornse Weilanden 9, 6708 WG Wageningen, the Netherlands
| | - Claire C Berton-Carabin
- Laboratory of Food Process Engineering, Bornse Weilanden 9, 6708 WG Wageningen, the Netherlands
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