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de Oliveira Bianchi JR, Fabrino DL, Quintão CMF, Dos Reis Coimbra JS, Santos IJB. Self-assembled α-lactalbumin nanostructures: encapsulation and controlled release of bioactive molecules in gastrointestinal in vitro model. JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE 2024. [PMID: 39099556 DOI: 10.1002/jsfa.13784] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/16/2024] [Revised: 07/13/2024] [Accepted: 07/13/2024] [Indexed: 08/06/2024]
Abstract
BACKGROUND Implementing encapsulation techniques is pivotal in safeguarding bioactive molecules against environmental conditions for drug delivery systems. Moreover, the food-grade nanocarrier is a delivery system and food ingredient crucial in creating nutraceutical foods. Nano α-lactalbumin has been shown to be a promissory nanocarrier for hydrophobic molecules. Furthermore, the nanoprotein can enhance the tecno-functional properties of food such as foam and emulsion. The present study investigated the nanostructured α-lactalbumin protein (nano α-la) as a delivery and controlled release system for bioactive molecules in a gastric-intestinal in vitro mimic system. RESULTS The nano α-la was synthesized by a low self-assembly technique, changing the solution ionic strength by NaCl and obtaining nano α-la 191.10 ± 21.33 nm and a spherical shape. The nano α-la showed higher encapsulation efficiency and loading capacity for quercetin than riboflavin, a potential carrier for hydrophobic compounds. Thermal analysis of nano α-la resulted in a ΔH of -1480 J g-1 for denaturation at 57.44 °C. The nanostructure formed by self-assembly modifies the foam volume increment and stability. Also, differences between nano and native proteins in emulsion activity and stability were noticed. The release profile in vitro showed that the nano α-la could not hold the molecules in gastric fluid. The Weibull and Korsmeyer-Peppas model better fits the release profile behavior in the studied fluids. CONCLUSION The present study shows the possibility of nano α-la as an alternative to molecule delivery systems and nutraceutical foods' formulation because of the high capacity to encapsulate hydrophobic molecules and the improvement of techno-functional properties. However, the nanocarrier is not perfectly suitable for the sustainable delivery of molecules in the gastrointestinal fluid, demanding improvements in the nanocarrier. © 2024 Society of Chemical Industry.
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Affiliation(s)
- Jhonatan Rafael de Oliveira Bianchi
- Department of Chemistry, Biotechnology and Bioprocess Engineering, Federal University of São João del Rei (UFSJ), Alto Paraopeba Campus, Ouro Branco, Brazil
| | - Daniela Leite Fabrino
- Department of Chemistry, Biotechnology and Bioprocess Engineering, Federal University of São João del Rei (UFSJ), Alto Paraopeba Campus, Ouro Branco, Brazil
| | - Cristiane Medina Finzi Quintão
- Department of Chemical Engineering, Federal University of São João del Rei (UFSJ), Alto Paraopeba Campus, Ouro Branco, Brazil
| | | | - Igor José Boggione Santos
- Department of Chemistry, Biotechnology and Bioprocess Engineering, Federal University of São João del Rei (UFSJ), Alto Paraopeba Campus, Ouro Branco, Brazil
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2
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Li S, Murakami D, Nagatoishi S, Liu Y, Tsumoto K, Katayama Y, Mori T. One-pot preparation of mannan-coated antigen nanoparticles using human serum albumin as a matrix for tolerance induction. J Colloid Interface Sci 2023; 649:955-965. [PMID: 37392685 DOI: 10.1016/j.jcis.2023.06.170] [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: 03/24/2023] [Revised: 06/10/2023] [Accepted: 06/25/2023] [Indexed: 07/03/2023]
Abstract
Nanoparticles (NPs) for allergen immunotherapy have garnered attention for their high efficiency and safety compared with naked antigen proteins. In this work, we present mannan-coated protein NPs, incorporating antigen proteins for antigen-specific tolerance induction. The heat-induced formation of protein NPs is a one-pot preparation method and can be applied to various proteins. Here, the NPs were formed spontaneously via heat denaturation of three component proteins: an antigen protein, human serum albumin (HSA) as a matrix protein, and mannoprotein (MAN) as a targeting ligand for dendritic cells (DCs). HSA is non-immunogenic, therefore suitable as a matrix protein, while MAN coats the surface of the NP. We applied this method to various antigen proteins and found that the self-disperse after heat denaturation was a requirement for incorporation into the NPs. We also established that the NPs could target DCs, and the incorporation of rapamycin into the NPs enhanced the induction of a tolerogenic phenotype of DC. The MAN coating provided steric hindrance and heat denaturation destroyed recognition structures, successfully preventing anti-antigen antibody binding, indicating the NPs may avoid anaphylaxis induction. The MAN-coated NPs proposed here, prepared by a simple method, have the potential for effective and safe allergies treatment for various antigens.
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Affiliation(s)
- Shunyi Li
- Graduate School of Systems Life Sciences, Kyushu University, Fukuoka 819-0395, Japan
| | - Daisuke Murakami
- Department of Otorhinolaryngology, Graduate School of Medical Sciences, Kyushu University, 812-8582 Fukuoka, Japan
| | - Satoru Nagatoishi
- The Institute of Medical Science, The University of Tokyo, Tokyo 108-8639, Japan; Department of Bioengineering, School of Engineering, The University of Tokyo, Tokyo 113-8656, Japan
| | - Yiwei Liu
- Department of Applied Chemistry, Faculty of Engineering, Kyushu University, Fukuoka 819-0395, Japan
| | - Kouhei Tsumoto
- The Institute of Medical Science, The University of Tokyo, Tokyo 108-8639, Japan; Department of Bioengineering, School of Engineering, The University of Tokyo, Tokyo 113-8656, Japan
| | - Yoshiki Katayama
- Graduate School of Systems Life Sciences, Kyushu University, Fukuoka 819-0395, Japan; Department of Applied Chemistry, Faculty of Engineering, Kyushu University, Fukuoka 819-0395, Japan; Center for Future Chemistry, Kyushu University, 819-0395, Japan; International Research Center for Molecular Systems, Kyushu University, Fukuoka 819-0395, Japan; Centre for Advanced Medicine Innovation, Kyushu University, Fukuoka 812-8582, Japan; Department of Biomedical Engineering, Chung Yuan Christian University, Chung Li, 32023, Taiwan, ROC.
| | - Takeshi Mori
- Graduate School of Systems Life Sciences, Kyushu University, Fukuoka 819-0395, Japan; Department of Applied Chemistry, Faculty of Engineering, Kyushu University, Fukuoka 819-0395, Japan; Center for Future Chemistry, Kyushu University, 819-0395, Japan.
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3
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Zheng J, Gao Q, Ge G, Wu J, Tang CH, Zhao M, Sun W. Dynamic equilibrium of β-conglycinin/lysozyme heteroprotein complex coacervates. Food Hydrocoll 2022. [DOI: 10.1016/j.foodhyd.2021.107339] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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4
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Filatova L, Emelianov G, Balabushevich N, Klyachko N. Supramolecular assemblies of mucin and lysozyme: Formation and physicochemical characterization. Process Biochem 2022. [DOI: 10.1016/j.procbio.2021.12.022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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5
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Wu C, Wang T, Ren C, Ma W, Wu D, Xu X, Wang LS, Du M. Advancement of food-derived mixed protein systems: Interactions, aggregations, and functional properties. Compr Rev Food Sci Food Saf 2020; 20:627-651. [PMID: 33325130 DOI: 10.1111/1541-4337.12682] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2020] [Revised: 10/31/2020] [Accepted: 11/12/2020] [Indexed: 11/30/2022]
Abstract
Recently, interests in binary protein systems have been developed considerably ascribed to the sustainability, environment-friendly, rich in nutrition, low cost, and tunable mechanical properties of these systems. However, the molecular coalition is challenged by the complex mechanisms of interaction, aggregation, gelation, and emulsifying of the mixed system in which another protein is introduced. To overcome these fundamental difficulties and better modulate the structural and functional properties of binary systems, efforts have been steered to gain basic information regarding the underlying dynamics, theories, and physicochemical characteristics of mixed systems. Therefore, the present review provides an overview of the current studies on the behaviors of proteins in such systems and highlights shortcomings and future challenges when applied in scientific fields.
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Affiliation(s)
- Chao Wu
- Collaborative Innovation Center of Seafood Deep Processing, National Engineering Research Center of Seafood, School of Food Science and Technology, Dalian Polytechnic University, Dalian, China
| | - Tao Wang
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, China
| | - Chao Ren
- Collaborative Innovation Center of Seafood Deep Processing, National Engineering Research Center of Seafood, School of Food Science and Technology, Dalian Polytechnic University, Dalian, China
| | - Wuchao Ma
- Collaborative Innovation Center of Seafood Deep Processing, National Engineering Research Center of Seafood, School of Food Science and Technology, Dalian Polytechnic University, Dalian, China
| | - Di Wu
- Collaborative Innovation Center of Seafood Deep Processing, National Engineering Research Center of Seafood, School of Food Science and Technology, Dalian Polytechnic University, Dalian, China
| | - Xianbing Xu
- Collaborative Innovation Center of Seafood Deep Processing, National Engineering Research Center of Seafood, School of Food Science and Technology, Dalian Polytechnic University, Dalian, China
| | - Li-Shu Wang
- Division of Hematology and Oncology, Department of Medicine, Medical College of Wisconsin, Milwaukee, Wisconsin
| | - Ming Du
- Collaborative Innovation Center of Seafood Deep Processing, National Engineering Research Center of Seafood, School of Food Science and Technology, Dalian Polytechnic University, Dalian, China
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Zheng J, Tang CH, Sun W. Heteroprotein complex coacervation: Focus on experimental strategies to investigate structure formation as a function of intrinsic and external physicochemical parameters for food applications. Adv Colloid Interface Sci 2020; 284:102268. [PMID: 32977143 DOI: 10.1016/j.cis.2020.102268] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2020] [Revised: 09/07/2020] [Accepted: 09/09/2020] [Indexed: 12/14/2022]
Abstract
Proteins are important components of foods, because they are one of the essential food groups, they have many functional properties that are very useful for modifying the physicochemical and textural properties of processed foods and possess many biological activities that are beneficial to human health. The process of heteroprotein complex coacervation (HPCC) combines two or more proteins through long-range coulombic interaction and specific short-range forces, creating a liquid-liquid colloid, with highly concentrated protein in the droplet phase and much more diluted-protein in the bulk phase. Coacervates possess novel, modifiable, physicochemical characteristics, and often exhibit the combined biological activities of the protein components, which makes them applicable to formulated foods and encapsulation carriers. This review discusses research progress in the field of HPCC in three parts: (1) the basic and innovative experimental methods and simulation tools for understanding the physicochemical behavior of these heteroprotein supramolecular architectures; (2) the influence of environmental factors (pH, mixing ratio, salts, temperature, and formation time) and intrinsic factors (protein modifications, metal-binding, charge anisotropy, and polypeptide designs) on HPCC; (3) the potential applications of HPCC materials, such as encapsulation of nutraceuticals, nanogels, emulsion stabilization, and protein separation. The wide diversity of possible combinations of proteins with different properties, endows HPCC materials with great potential for development into highly-innovation functional food ingredients.
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Affiliation(s)
- Jiabao Zheng
- School of Food Science and Engineering, South China University of Technology, Guangzhou 510641, China
| | - Chuan-He Tang
- School of Food Science and Engineering, South China University of Technology, Guangzhou 510641, China; Overseas Expertise Introduction Center for Discipline Innovation of Food Nutrition and Human Health (111 Center), Guangzhou 510641, China
| | - Weizheng Sun
- School of Food Science and Engineering, South China University of Technology, Guangzhou 510641, China; Overseas Expertise Introduction Center for Discipline Innovation of Food Nutrition and Human Health (111 Center), Guangzhou 510641, China.
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7
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Yang W, Liang X, Xu L, Deng C, Jin W, Wang X, Kong Y, Duan M, Nei Y, Zeng J, Li B. Structures, fabrication mechanisms, and emulsifying properties of self-assembled and spray-dried ternary complexes based on lactoferrin, oat β-glucan and curcumin: A comparison study. Food Res Int 2020; 131:109048. [PMID: 32247490 DOI: 10.1016/j.foodres.2020.109048] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2019] [Revised: 01/10/2020] [Accepted: 01/29/2020] [Indexed: 12/18/2022]
Abstract
Protein-polyphenol-polysaccharide non-covalent ternary complexes possess many unique structural and functional properties. However, rare work is available to fabricate the neutral polysaccharide-based ternary complexes. Herein, the ternary complexes composed of lactoferrin (LF), oat β-glucan (OG), and curcumin (Cur) with three binding sequences were successfully developed through self-assembly technique and spray drying technique, respectively. Spray drying could enhance the extent of the intermolecular associations among LF, OG, and Cur, leading to the formation of ternary complexes with smaller particle sizes and lower turbidities. Cur can be loaded in LF-OG complexes to form an amorphous complex through the intermolecular interactions (mainly hydrophobic interactions and hydrogen bonding). The ternary complexes can be used as potential emulsifiers to stabilize oil-in-water Pickering emulsions. The emulsifying capacity (to enhance physical stability) of the complexes was in the order as follows: the spray-dried ternary complexes > the spray-dried LF-OG complexes > the self-assembled ternary complexes > the self-assembled LF-OG complexes. The structural and functional properties (e.g., emulsifying property) of OG-based ternary complexes can be controlled by adjusting the binding sequences. These results will broaden our current understanding of protein-polyphenol-polysaccharide ternary complexes and provide more applications of OG in food, cosmetics, and pharmaceutical industries.
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Affiliation(s)
- Wei Yang
- School of Food Science and Technology, Henan Institute of Science and Technology, Xinxiang, Henan 453003, PR China.
| | - Xinhong Liang
- School of Food Science and Technology, Henan Institute of Science and Technology, Xinxiang, Henan 453003, PR China
| | - Linshuang Xu
- School of Food Science and Technology, Henan Institute of Science and Technology, Xinxiang, Henan 453003, PR China
| | - Chujun Deng
- School of Food Science and Technology, Henan Institute of Science and Technology, Xinxiang, Henan 453003, PR China
| | - Weiping Jin
- College of Food Science and Engineering, Wuhan Polytechnic University, Wuhan, Hubei 430023, PR China
| | - Xiaohui Wang
- School of Food Science and Technology, Henan Institute of Science and Technology, Xinxiang, Henan 453003, PR China
| | - Yaru Kong
- School of Food Science and Technology, Henan Institute of Science and Technology, Xinxiang, Henan 453003, PR China
| | - Mengge Duan
- School of Food Science and Technology, Henan Institute of Science and Technology, Xinxiang, Henan 453003, PR China
| | - Yuanyang Nei
- School of Food Science and Technology, Henan Institute of Science and Technology, Xinxiang, Henan 453003, PR China
| | - Jie Zeng
- School of Food Science and Technology, Henan Institute of Science and Technology, Xinxiang, Henan 453003, PR China
| | - Bo Li
- School of Food Science and Technology, Henan Institute of Science and Technology, Xinxiang, Henan 453003, PR China.
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8
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Ainis WN, Boire A, Solé-Jamault V, Nicolas A, Bouhallab S, Ipsen R. Contrasting Assemblies of Oppositely Charged Proteins. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2019; 35:9923-9933. [PMID: 31264885 DOI: 10.1021/acs.langmuir.9b01046] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Oppositely charged proteins can form soluble assemblies that under specific physical chemical conditions lead to liquid-liquid phase separation, also called heteroprotein coacervation. Increasing evidence suggests that surface charge anisotropy plays a key role in heteroprotein complexation, and coacervation. Here, we investigated complexation of an acidic protein, β-lactoglobulin (BLG), with two basic proteins, rapeseed napin (NAP) and lysozyme (LYS), of similar net charge and size but differing in surface charge distribution. Using turbidity measurements and isothermal titration calorimetry, we confirmed that LYS binds BLG as expected from previous studies. This interaction leads to two types of phase separation phenomena, depending on pH: liquid-solid phase separation in the case of strong electrostatic attraction and liquid-liquid phase separation for weaker attraction. More interestingly, we showed using dynamic light scattering that NAP interacts with BLG, resulting in formation of assemblies in the nanometer size range. The formation of assemblies was also evident when modeling the interactions using Brownian dynamics for both BLG + NAP and BLG + LYS. Similarly, to DLS, BLG and NAP formed smaller assemblies than BLG with LYS. The molecular details rather than the net charge of BLG and NAP may therefore play a role in their assembly. Furthermore, simulated BLG + NAP assemblies were larger than those experimentally detected by DLS. We discuss the discrepancy between experiments and simulations in relation to the limitations of modelling precisely the molecular characteristics of proteins.
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Affiliation(s)
- William Nicholas Ainis
- Section of Ingredient and Dairy Technology, Department of Food Science, Faculty of Science , University of Copenhagen , DK-1958 Frederiksberg , Denmark
| | - Adeline Boire
- INRA, Biopolymères Interactions Assemblages , F-44300 Nantes , France
| | | | - Aurélie Nicolas
- UMR1253, STLO, INRA, Agrocampus Ouest , F-35042 Rennes , France
| | - Said Bouhallab
- UMR1253, STLO, INRA, Agrocampus Ouest , F-35042 Rennes , France
| | - Richard Ipsen
- Section of Ingredient and Dairy Technology, Department of Food Science, Faculty of Science , University of Copenhagen , DK-1958 Frederiksberg , Denmark
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9
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Somu P, Paul S. Supramolecular nanoassembly of lysozyme and α-lactalbumin (apo α-LA) exhibits selective cytotoxicity and enhanced bioavailability of curcumin to cancer cells. Colloids Surf B Biointerfaces 2019; 178:297-306. [PMID: 30878804 DOI: 10.1016/j.colsurfb.2019.03.016] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2018] [Revised: 02/23/2019] [Accepted: 03/06/2019] [Indexed: 11/18/2022]
Abstract
Hybrid supramolecular spherical nanoassembly of hen egg white lysozyme and bovine apo α lactalbumin (SNLYZ-BLA) was prepared with a mean size of ˜55.2 nm using an optimized desolvation method via chemical crosslinking. The nanoassembly, SNLYZ-BLA demonstrated dose-dependent reactive oxygen species (ROS) mediated cytotoxicity in multiple cancer cells such as MCF-7, MDA-MB231, HeLa and MG 63. It also demonstrated high loading capacity of a phytochemical based anticancer agent, curcumin (248.8 mg/g) and target-based pH-responsive in vitro drug release with around 85.8% curcumin release observed under acidic condition. Moreover, curcumin loaded SNLYZ-BLA (SNLYZ-BLA-CUR) induced cell viability reduction in all cancer cells including mouse melanoma (B16F10) by more than 90% within 24 h. Further, SNLYZ-BLA and SNLYZ-BLA-CUR when conjugated with folic acid enhanced the cytotoxicity via folate receptor-based targeting. Both drug loading and release induced conformational change and folding reconstitution of the protein nano-assembly, respectively, which made the whole system an efficient therapeutic agent that works via a dual mode of action. We demonstrated that SNLYZ-BLA and SNLYZ-BLA-CUR were highly biocompatible in vitro. Therefore, our supramolecular protein nanoassembly loaded with curcumin could emerge as a comprehensive cancer therapeutics that acts via a strategic mode of dual therapeutic mechanisms.
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Affiliation(s)
- Prathap Somu
- Structural Biology and Nanomedicine Laboratory, Department of Biotechnology and Medical Engineering, National Institute of Technology Rourkela, Rourkela, 769008, Odisha, India
| | - Subhankar Paul
- Structural Biology and Nanomedicine Laboratory, Department of Biotechnology and Medical Engineering, National Institute of Technology Rourkela, Rourkela, 769008, Odisha, India.
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10
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Boire A, Bouchoux A, Bouhallab S, Chapeau AL, Croguennec T, Ferraro V, Lechevalier V, Menut P, Pézennec S, Renard D, Santé-Lhoutellier V, Laleg K, Micard V, Riaublanc A, Anton M. Proteins for the future: A soft matter approach to link basic knowledge and innovative applications. INNOV FOOD SCI EMERG 2018. [DOI: 10.1016/j.ifset.2017.06.012] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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11
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Affiliation(s)
- Skelte G. Anema
- Fonterra Research and Development Centre, Palmerston North, New Zealand
- Riddet Institute, Massey University, Palmerston North, New Zealand
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12
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A printed SWCNT electrode modified with polycatechol and lysozyme for capacitive detection of α-lactalbumin. Mikrochim Acta 2017. [DOI: 10.1007/s00604-017-2481-z] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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13
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14
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Heteroprotein complex coacervation: A generic process. Adv Colloid Interface Sci 2017; 239:115-126. [PMID: 27370709 DOI: 10.1016/j.cis.2016.06.009] [Citation(s) in RCA: 59] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2016] [Revised: 06/07/2016] [Accepted: 06/12/2016] [Indexed: 11/23/2022]
Abstract
Proteins exhibit a rich diversity of functional, physico-chemical and biodegradable properties which makes them appealing for various applications in the food and non-food sectors. Such properties are attributed to their ability to interact and assemble into a diversity of supramolecular structures. The present review addresses the updated research progress in the recent field of complex coacervation made from mixtures of oppositely charged proteins (i.e. heteroprotein systems). First, we describe briefly the main proteins used for heteroprotein coacervation. Then, through some selected examples, we illustrate the particularity and specificity of each heteroprotein system and the requirements that drive optimal assembly into coacervates. Finally, possible and promising applications of heteroprotein coacervates are mentioned.
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Liu Y, Winter HH, Perry SL. Linear viscoelasticity of complex coacervates. Adv Colloid Interface Sci 2017; 239:46-60. [PMID: 27633928 DOI: 10.1016/j.cis.2016.08.010] [Citation(s) in RCA: 87] [Impact Index Per Article: 12.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2016] [Revised: 08/31/2016] [Accepted: 08/31/2016] [Indexed: 01/15/2023]
Abstract
Rheology is a powerful method for material characterization that can provide detailed information about the self-assembly, structure, and intermolecular interactions present in a material. Here, we review the use of linear viscoelastic measurements for the rheological characterization of complex coacervate-based materials. Complex coacervation is an electrostatically and entropically-driven associative liquid-liquid phase separation phenomenon that can result in the formation of bulk liquid phases, or the self-assembly of hierarchical, microphase separated materials. We discuss the need to link thermodynamic studies of coacervation phase behavior with characterization of material dynamics, and provide parallel examples of how parameters such as charge stoichiometry, ionic strength, and polymer chain length impact self-assembly and material dynamics. We conclude by highlighting key areas of need in the field, and specifically call for the development of a mechanistic understanding of how molecular-level interactions in complex coacervate-based materials affect both self-assembly and material dynamics.
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Affiliation(s)
- Yalin Liu
- Department of Chemical Engineering, University of Massachusetts Amherst, Amherst, MA 01003, USA
| | - H Henning Winter
- Department of Chemical Engineering, University of Massachusetts Amherst, Amherst, MA 01003, USA
| | - Sarah L Perry
- Department of Chemical Engineering, University of Massachusetts Amherst, Amherst, MA 01003, USA.
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Blocher WC, Perry SL. Complex coacervate-based materials for biomedicine. WILEY INTERDISCIPLINARY REVIEWS-NANOMEDICINE AND NANOBIOTECHNOLOGY 2016; 9. [DOI: 10.1002/wnan.1442] [Citation(s) in RCA: 120] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/01/2016] [Revised: 09/10/2016] [Accepted: 10/02/2016] [Indexed: 02/06/2023]
Affiliation(s)
- Whitney C. Blocher
- Department of Chemical Engineering; University of Massachusetts Amherst; Amherst MA USA
| | - Sarah L. Perry
- Department of Chemical Engineering; University of Massachusetts Amherst; Amherst MA USA
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17
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Design of bio-based supramolecular structures through self-assembly of α-lactalbumin and lysozyme. Food Hydrocoll 2016. [DOI: 10.1016/j.foodhyd.2016.02.009] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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18
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19
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20
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Tavares GM, Croguennec T, Carvalho AF, Bouhallab S. Milk proteins as encapsulation devices and delivery vehicles: Applications and trends. Trends Food Sci Technol 2014. [DOI: 10.1016/j.tifs.2014.02.008] [Citation(s) in RCA: 141] [Impact Index Per Article: 14.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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21
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Yan Y, Kizilay E, Seeman D, Flanagan S, Dubin PL, Bovetto L, Donato L, Schmitt C. Heteroprotein complex coacervation: bovine β-lactoglobulin and lactoferrin. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2013; 29:15614-15623. [PMID: 24164315 DOI: 10.1021/la4027464] [Citation(s) in RCA: 63] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
Lactoferrin (LF) and β-lactoglobulin (BLG), strongly basic and weakly acidic bovine milk proteins, form optically clear coacervates under highly limited conditions of pH, ionic strength I, total protein concentration C(P), and BLG:LF stoichiometry. At 1:1 weight ratio, the coacervate composition has the same stoichiometry as its supernatant, which along with DLS measurements is consistent with an average structure LF(BLG2)2. In contrast to coacervation involving polyelectrolytes here, coacervates only form at I < 20 mM. The range of pH at which coacervation occurs is similarly narrow, ca. 5.7-6.2. On the other hand, suppression of coacervation is observed at high C(P), similar to the behavior of some polyelectrolyte-colloid systems. It is proposed that the structural homogeneity of complexes versus coacervates with polyelectrolytes greatly reduces the entropy of coacervation (both chain configuration and counterion loss) so that a very precise balance of repulsive and attractive forces is required for phase separation of the coacervate equilibrium state. The liquid-liquid phase transition can however be obscured by the kinetics of BLG aggregation which can compete with coacervation by depletion of BLG.
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Affiliation(s)
- Yunfeng Yan
- Department of Chemistry, University of Massachusetts Amherst , Amherst, Massachusetts 01003, United States
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22
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Bouhallab S, Croguennec T. Spontaneous Assembly and Induced Aggregation of Food Proteins. ADVANCES IN POLYMER SCIENCE 2013. [DOI: 10.1007/12_2012_201] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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Kurut A, Persson BA, Åkesson T, Forsman J, Lund M. Anisotropic Interactions in Protein Mixtures: Self Assembly and Phase Behavior in Aqueous Solution. J Phys Chem Lett 2012; 3:731-734. [PMID: 26286281 DOI: 10.1021/jz201680m] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Recent experimental studies show that oppositely charged proteins can self-assemble to form seemingly stable microspheres in aqueous salt solutions. We here use parallel tempering Monte Carlo simulations to study protein phase separation of lysozyme/α-lactalbumin mixtures and show that anisotropic electrostatic interactions are important for driving protein self-assembly. In both dilute and concentrated protein phases, the proteins strongly align according to their charge distribution. While this alignment can be greatly diminished by a single point mutation, phase separation is completely suppressed when neglecting electrostatic anisotropy. The results highlight the importance of subtle electrostatic interactions even in crowded biomolecular environments where other short-ranged forces are often thought to dominate.
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Affiliation(s)
- Anıl Kurut
- Department of Theoretical Chemistry, Lund University, POB 124 SE-22100 Lund, Sweden
| | - Björn A Persson
- Department of Theoretical Chemistry, Lund University, POB 124 SE-22100 Lund, Sweden
| | - Torbjörn Åkesson
- Department of Theoretical Chemistry, Lund University, POB 124 SE-22100 Lund, Sweden
| | - Jan Forsman
- Department of Theoretical Chemistry, Lund University, POB 124 SE-22100 Lund, Sweden
| | - Mikael Lund
- Department of Theoretical Chemistry, Lund University, POB 124 SE-22100 Lund, Sweden
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Lindhoud S, Stuart MAC. Relaxation Phenomena During Polyelectrolyte Complex Formation. POLYELECTROLYTE COMPLEXES IN THE DISPERSED AND SOLID STATE I 2012. [DOI: 10.1007/12_2012_178] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
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Salvatore DB, Duraffourg N, Favier A, Persson BA, Lund M, Delage MM, Silvers R, Schwalbe H, Croguennec T, Bouhallab S, Forge V. Investigation at Residue Level of the Early Steps during the Assembly of Two Proteins into Supramolecular Objects. Biomacromolecules 2011; 12:2200-10. [DOI: 10.1021/bm200285e] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Delphine B. Salvatore
- Laboratoire de Chimie et Biologie des Métaux (UMR 5249), CEA−Grenoble, 17, rue des Martyrs, F-38057 Grenoble, France
- UMR 1253, INRA, Agrocampus Ouest, Science et Technologie du Lait et de l’Oeuf, 65 rue de Saint-Brieuc, F-35000 Rennes, France
| | - Nicolas Duraffourg
- Laboratoire de Chimie et Biologie des Métaux (UMR 5249), CEA−Grenoble, 17, rue des Martyrs, F-38057 Grenoble, France
| | - Adrien Favier
- Laboratoire de Résonance Magnétique Nucléaire, Institut de Biologie Structurale Jean-Pierre Ebel, 41, rue Jules Horowitz, F-38027 Grenoble, France
| | - Björn A. Persson
- Department of Theoretical Chemistry, University of Lund, POB 124, S-22100 Lund, Sweden
| | - Mikael Lund
- Department of Theoretical Chemistry, University of Lund, POB 124, S-22100 Lund, Sweden
| | - Marie-Madeleine Delage
- UMR 1253, INRA, Agrocampus Ouest, Science et Technologie du Lait et de l’Oeuf, 65 rue de Saint-Brieuc, F-35000 Rennes, France
| | - Robert Silvers
- Institute for Organic Chemistry and Chemical Biology, Johann Wolfgang Goethe University, Max-von-Laue-Strasse 7, D-60438 Frankfurt am Main, Germany
| | - Harald Schwalbe
- Institute for Organic Chemistry and Chemical Biology, Johann Wolfgang Goethe University, Max-von-Laue-Strasse 7, D-60438 Frankfurt am Main, Germany
| | - Thomas Croguennec
- UMR 1253, INRA, Agrocampus Ouest, Science et Technologie du Lait et de l’Oeuf, 65 rue de Saint-Brieuc, F-35000 Rennes, France
| | - Saïd Bouhallab
- UMR 1253, INRA, Agrocampus Ouest, Science et Technologie du Lait et de l’Oeuf, 65 rue de Saint-Brieuc, F-35000 Rennes, France
| | - Vincent Forge
- Laboratoire de Chimie et Biologie des Métaux (UMR 5249), CEA−Grenoble, 17, rue des Martyrs, F-38057 Grenoble, France
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Salvatore D, Croguennec T, Bouhallab S, Forge V, Nicolai T. Kinetics and structure during self-assembly of oppositely charged proteins in aqueous solution. Biomacromolecules 2011; 12:1920-6. [PMID: 21462970 DOI: 10.1021/bm200264m] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Self-assembly in aqueous solution of two oppositely charged globular proteins, hen egg white lysozyme (LYS) and bovine calcium-depleted α-lactalbumin (apo α-LA), was investigated at pH 7.5. The aggregation rate of equimolar mixtures of the two proteins was determined using static and dynamic light scattering as a function of the ionic strength (15-70 mM) and protein concentration (0.28-2.8 g/L) at 25 and 45 °C. The morphology of formed supramolecular structures was observed by confocal laser scanning microscopy. When the two proteins are mixed, small aggregates were formed rapidly that subsequently grew by collision and fusion. The aggregation process led on larger length scales to irregularly shaped flocs at 25 °C, but to monodisperse homogeneous spheres at 45 °C. Both the initial rate of aggregation and the fraction of proteins that associated decreased strongly with decreasing protein concentration or increasing ionic strength but was independent of the temperature.
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How to tailor heat-induced whey protein/κ-casein complexes as a means to investigate the acid gelation of milk—a review. ACTA ACUST UNITED AC 2011. [DOI: 10.1007/s13594-011-0013-x] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
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28
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Desfougères Y, Croguennec T, Lechevalier V, Bouhallab S, Nau F. Charge and Size Drive Spontaneous Self-Assembly of Oppositely Charged Globular Proteins into Microspheres. J Phys Chem B 2010; 114:4138-44. [DOI: 10.1021/jp9090427] [Citation(s) in RCA: 46] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Yann Desfougères
- Agrocampus Ouest, UMR1253, STLO, F-35042 Rennes, France, and INRA, UMR1253, STLO, F-35042 Rennes, France
| | - Thomas Croguennec
- Agrocampus Ouest, UMR1253, STLO, F-35042 Rennes, France, and INRA, UMR1253, STLO, F-35042 Rennes, France
| | - Valérie Lechevalier
- Agrocampus Ouest, UMR1253, STLO, F-35042 Rennes, France, and INRA, UMR1253, STLO, F-35042 Rennes, France
| | - Saïd Bouhallab
- Agrocampus Ouest, UMR1253, STLO, F-35042 Rennes, France, and INRA, UMR1253, STLO, F-35042 Rennes, France
| | - Françoise Nau
- Agrocampus Ouest, UMR1253, STLO, F-35042 Rennes, France, and INRA, UMR1253, STLO, F-35042 Rennes, France
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Dynamic and supramolecular organisation of α-lactalbumin/lysozyme microspheres: A microscopic study. Biophys Chem 2010; 146:30-5. [DOI: 10.1016/j.bpc.2009.10.001] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2009] [Revised: 10/02/2009] [Accepted: 10/04/2009] [Indexed: 11/23/2022]
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Persson BA, Lund M. Association and electrostatic steering of alpha-lactalbumin-lysozyme heterodimers. Phys Chem Chem Phys 2009; 11:8879-85. [PMID: 20449034 DOI: 10.1039/b909179c] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The salt and pH dependent association of hen egg white lysozyme with alpha-lactalbumin whey proteins has been studied using molecular level Monte Carlo simulations. A highly uneven charge distribution of alpha-lactalbumin leads to strongly ordered heterodimers that may facilitate the formation of structured, mesoscopic aggregates. This electrostatic steering gives rise to 80% alignment at 5 mM 1 : 1 salt which, due to screening, diminishes to 60% at 100 mM salt. The free energy of interaction minima, dominated by electrostatics, ranges between -9 kT at 1 mM salt to -2 kT at 100 mM (neutral pH). Calculated osmotic second virial cross coefficients indicate complexation in the pH interval 6-10. Multivalent ions are found to effectively destabilize the protein complex and, at constant ionic strength, the order is La(3+) > Ca(2+) > Mg(2+) > Na(+). Upon binding of calcium to alpha-lactalbumin both the interaction and orientational alignment with lysozyme are reduced due to induced changes in the whey protein charge distribution. This potentially explains the experimentally observed absence of supramolecular structuring for the calcium loaded holo alpha-lactalbumin. Where available, good agreement is found with experimental data.
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Affiliation(s)
- Björn A Persson
- Department of Theoretical Chemistry, Chemical Center, POB 124, S-221 00 Lund, Sweden
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Nigen M, Le Tilly V, Croguennec T, Drouin-Kucma D, Bouhallab S. Molecular interaction between apo or holo α-lactalbumin and lysozyme: Formation of heterodimers as assessed by fluorescence measurements. BIOCHIMICA ET BIOPHYSICA ACTA-PROTEINS AND PROTEOMICS 2009; 1794:709-15. [DOI: 10.1016/j.bbapap.2008.12.017] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/03/2008] [Revised: 12/11/2008] [Accepted: 12/17/2008] [Indexed: 10/21/2022]
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