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Doshi N, Guo W, Chen F, Venema P, Shum HC, de Vries R, Li X. Simple and complex coacervation in systems involving plant proteins. SOFT MATTER 2024; 20:1966-1977. [PMID: 38334990 DOI: 10.1039/d3sm01275a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/10/2024]
Abstract
Plant-based foods are gaining popularity as alternatives to meat and dairy products due to sustainability and health concerns. As a consequence, there is a renewed interest in the phase behaviour of plant proteins and of mixtures of plant proteins and polysaccharides, in particular in the cases where coacervation is found to occur, i.e., liquid-liquid phase separation (LLPS) into two phases, one of which is rich in biopolymers and one of which is poor in biopolymer. Here we review recent research into both simple and complex coacervation in systems involving plant proteins, and their applications in food- as well as other technologies, such as microencapsulation, microgel production, adhesives, biopolymer films, and more.
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Affiliation(s)
- Nirzar Doshi
- Physical Chemistry and Soft Matter, Wageningen University and Research, Wageningen 6708 WE, The Netherlands.
- Laboratory of Physics and Physical Chemistry of Foods, Wageningen University, Bornse Weilanden 9, 6708, WG, Wageningen, The Netherlands
| | - Wei Guo
- Advanced Biomedical Instrumentation Centre, Hong Kong Science Park, New Territories, Shatin, Hong Kong, China
- Department of Mechanical Engineering, The University of Hong Kong, Pokfulam Road, Hong Kong, China
| | - Feipeng Chen
- Department of Mechanical Engineering, The University of Hong Kong, Pokfulam Road, Hong Kong, China
| | - Paul Venema
- Laboratory of Physics and Physical Chemistry of Foods, Wageningen University, Bornse Weilanden 9, 6708, WG, Wageningen, The Netherlands
| | - Ho Cheung Shum
- Advanced Biomedical Instrumentation Centre, Hong Kong Science Park, New Territories, Shatin, Hong Kong, China
- Department of Mechanical Engineering, The University of Hong Kong, Pokfulam Road, Hong Kong, China
| | - Renko de Vries
- Physical Chemistry and Soft Matter, Wageningen University and Research, Wageningen 6708 WE, The Netherlands.
| | - Xiufeng Li
- Advanced Biomedical Instrumentation Centre, Hong Kong Science Park, New Territories, Shatin, Hong Kong, China
- College of Food Science and Technology, Nanjing Agricultural University, Nanjing, 210095, Jiangsu, China.
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Guo W, Ji D, Kinghorn AB, Chen F, Pan Y, Li X, Li Q, Huck WTS, Kwok CK, Shum HC. Tuning Material States and Functionalities of G-Quadruplex-Modulated RNA-Peptide Condensates. J Am Chem Soc 2023; 145:2375-2385. [PMID: 36689740 DOI: 10.1021/jacs.2c11362] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Abstract
RNA encodes sequence- and structure-dependent interactions to modulate the assembly and properties of biomolecular condensates. RNA G-quadruplexes (rG4s) formed by guanine-rich sequences can trigger the formation of liquid- or solid-like condensates that are involved in many aberrant phase transitions. However, exactly how rG4 motifs modulate different phase transitions and impart distinct material properties to condensates is unclear. Here, using RNA oligonucleotides and cationic peptides as model systems, we show that RNA-peptide condensates exhibit tunability in material properties over a wide spectrum via interactions arising from rG4 folding/unfolding kinetics. rG4-containing oligonucleotides formed strong pairwise attraction with peptides and tended to form solid-like condensates, while their less-structured non-G4 mutants formed liquid-like droplets. We find that the coupling between rG4 dissociation and RNA-peptide complex coacervation triggers solid-to-liquid transition of condensates prior to the complete unfolding of rG4s. This coupling points to a mechanism that material states of rG4-modulated condensates can be finely tuned from solid-like to liquid-like by the addition of less-structured RNA oligonucleotides, which have weak but dominant binding with peptides. We further show that the tunable material states of condensates can enhance RNA aptamer compartmentalization and RNA cleavage reactions. Our results suggest that condensates with complex properties can emerge from subtle changes in RNA oligonucleotides, contributing ways to treat dysfunctional condensates in diseases and insights into prebiotic compartmentalization.
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Affiliation(s)
- Wei Guo
- Department of Mechanical Engineering, Faculty of Engineering, The University of Hong Kong, Hong Kong 999077, China.,Advanced Biomedical Instrumentation Centre, Hong Kong Science Park, Shatin, New Territories, Hong Kong 999077,China
| | - Danyang Ji
- Department of Chemistry and State Key Laboratory of Marine Pollution, City University of Hong Kong, Hong Kong 999077, China
| | - Andrew B Kinghorn
- School of Biomedical Sciences, LKS Faculty of Medicine, The University of Hong Kong, Hong Kong 999077, China
| | - Feipeng Chen
- Department of Mechanical Engineering, Faculty of Engineering, The University of Hong Kong, Hong Kong 999077, China
| | - Yi Pan
- Department of Mechanical Engineering, Faculty of Engineering, The University of Hong Kong, Hong Kong 999077, China
| | - Xiufeng Li
- Advanced Biomedical Instrumentation Centre, Hong Kong Science Park, Shatin, New Territories, Hong Kong 999077,China
| | - Qingchuan Li
- Advanced Biomedical Instrumentation Centre, Hong Kong Science Park, Shatin, New Territories, Hong Kong 999077,China
| | - Wilhelm T S Huck
- Institute for Molecules and Materials, Radboud University Nijmegen, Heyendaalseweg 135, 6525 AJ Nijmegen, Netherlands
| | - Chun Kit Kwok
- Department of Chemistry and State Key Laboratory of Marine Pollution, City University of Hong Kong, Hong Kong 999077, China.,Shenzhen Research Institute of City University of Hong Kong, Shenzhen 518057, China
| | - Ho Cheung Shum
- Department of Mechanical Engineering, Faculty of Engineering, The University of Hong Kong, Hong Kong 999077, China.,Advanced Biomedical Instrumentation Centre, Hong Kong Science Park, Shatin, New Territories, Hong Kong 999077,China
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Wang Y, Li X, Li T, Wang Y, Jiang J, Zhang X, Huang J, Xia B, Shum HC, Yang Z, Dong W. Ultra-stable pickering emulsions stabilized by zein-cellulose conjugate particles with tunable interfacial affinity. Food Hydrocoll 2023. [DOI: 10.1016/j.foodhyd.2022.108055] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Borah U, Baruah R, Kalita S, Dutta F, Borah A, Purkayastha MD. Core-shell structured α-tocopherol acetate encapsulation using elephant apple mucilage-alginate matrix: In vitro digestion and thermal degradation kinetics. FOOD BIOSCI 2022. [DOI: 10.1016/j.fbio.2022.102189] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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Li X, der Gucht J, Erni P, Vries R. Active Microrheology of Protein Condensates Using Colloidal Probe-AFM. J Colloid Interface Sci 2022; 632:357-366. [DOI: 10.1016/j.jcis.2022.11.071] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2022] [Revised: 10/07/2022] [Accepted: 11/12/2022] [Indexed: 11/18/2022]
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El Abbadi A, Erni P. Rheology and tribology of chitosan/ Acacia gum complex coacervates. SOFT MATTER 2022; 18:7804-7813. [PMID: 36193837 DOI: 10.1039/d2sm00881e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
Acacia gum (Gum Arabic; GA) and chitosan (CTS) form complex coacervates in acidic environments, providing a polymer-rich aqueous material with interesting bio-lubricant properties. We investigate the interplay of the tribology and rheology of these coacervates, demonstrating that they dramatically reduce the friction coefficient between lubricated soft model surfaces as compared to solutions of the individual polymers. We characterize the phase separation behavior using microscopy, electrophoretic mobility and thermogravimetric analysis. The macroscopic rheological behaviour is predominantly viscous and ranges from weakly to strongly shear thinning: viscosity levels and strength of shear thinning increase with decreasing ionic strength, but no apparent yield stress or predominant elasticity were observed even in the absence of salt. Conversely, friction coefficients measured between soft and rough surfaces increase with a rise in ionic strength and can be scaled onto a Stribeck-type master curve across varying ionic strength and pH in the mixed and hydrodynamic lubrication regimes.
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Affiliation(s)
- Amal El Abbadi
- Research Division, Materials Science Department, Firmenich SA, Rue de la Bergère 7, 1217 Meyrin/Geneva, Switzerland.
| | - Philipp Erni
- Research Division, Materials Science Department, Firmenich SA, Rue de la Bergère 7, 1217 Meyrin/Geneva, Switzerland.
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Sridhar K, Bouhallab S, Croguennec T, Renard D, Lechevalier V. Application of high-pressure and ultrasound technologies for legume proteins as wall material in microencapsulation: New insights and advances. Trends Food Sci Technol 2022. [DOI: 10.1016/j.tifs.2022.07.006] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
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Li X, You B, Shum HC, Chen CH. Future foods: Design, fabrication and production through microfluidics. Biomaterials 2022; 287:121631. [PMID: 35717791 DOI: 10.1016/j.biomaterials.2022.121631] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2022] [Revised: 05/12/2022] [Accepted: 06/09/2022] [Indexed: 11/02/2022]
Abstract
Many delicious foods are soft matter systems with health ingredients and unique internal structures that provide rich nutrition, unique textures, and popular flavors. Obtaining these special properties in food products usually requires specialized processes. Microfluidic technologies have been developed to physically manipulate liquids to produce a broad range of microunits, providing a suitable approach for precise fabrication of functional biomaterials with desirable interior structures in a bottom-up fashion. In this review, we present how microfluidics has been applied to produce gel-based structures and highlight their use in fabricating novel foods, focusing on, among others, cultured meat as a rapidly growing field in food industry. We first discuss the behaviors of food liquids in microchannels for fluidic structure design. Then, different types of microsized building blocks with specific geometries fabricated through microfluidics are introduced, including particles (point), fibers (line), and sheets (plane). These well-defined units can encapsulate or interact with cells, forming microtissues to construct meat products with desirable architectures. After that, we review approaches to scale up microfluidic devices for mass production of the hydrogel building blocks and highlight the challenges associated with bottom-up food production.
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Affiliation(s)
- Xiufeng Li
- Advanced Biomedical Instrumentation Centre, Hong Kong Science Park, Shatin, New Territories, Hong Kong, China
| | - Baihao You
- Department of Biomedical Engineering, City University of Hong Kong, 83 Tat Chee Avenue, Kowloon Tong, Hong Kong, China
| | - Ho Cheung Shum
- Advanced Biomedical Instrumentation Centre, Hong Kong Science Park, Shatin, New Territories, Hong Kong, China; Department of Mechanical Engineering, University of Hong Kong, Pokfulam Road, Hong Kong, China.
| | - Chia-Hung Chen
- Department of Biomedical Engineering, City University of Hong Kong, 83 Tat Chee Avenue, Kowloon Tong, Hong Kong, China; City University of Hong Kong, Shenzhen Research Institute, 8 Yuexing 1st Road, Shenzhen Hi-tech Industrial Park, Nanshan District, Shenzhen, China.
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Zheng C, Liu F, Xu K, Wu Y, Wang J. Preparation of ethyl cellulose–glycerol tribenzoate microcapsules in CO
2
/N
2
‐switchable hydrophilicity solvent and solvent recycling. J Appl Polym Sci 2022. [DOI: 10.1002/app.52788] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Cunchuan Zheng
- School of Chemistry and Chemical Engineering Southwest Petroleum University Chengdu People's Republic of China
| | - Fuchuan Liu
- School of Chemistry and Chemical Engineering Southwest Petroleum University Chengdu People's Republic of China
| | - Ke Xu
- PetroChina Research Institute of Petroleum Exploration & Development Beijing People's Republic of China
| | - Yang Wu
- School of Chemistry and Chemical Engineering Southwest Petroleum University Chengdu People's Republic of China
| | - Jinyu Wang
- School of Chemistry and Chemical Engineering Southwest Petroleum University Chengdu People's Republic of China
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Sharma K, Porat Z, Gedanken A. Designing Natural Polymer-Based Capsules and Spheres for Biomedical Applications-A Review. Polymers (Basel) 2021; 13:4307. [PMID: 34960858 PMCID: PMC8708131 DOI: 10.3390/polym13244307] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2021] [Revised: 11/29/2021] [Accepted: 12/06/2021] [Indexed: 12/12/2022] Open
Abstract
Natural polymers, such as polysaccharides and polypeptides, are potential candidates to serve as carriers of biomedical cargo. Natural polymer-based carriers, having a core-shell structural configuration, offer ample scope for introducing multifunctional capabilities and enable the simultaneous encapsulation of cargo materials of different physical and chemical properties for their targeted delivery and sustained and stimuli-responsive release. On the other hand, carriers with a porous matrix structure offer larger surface area and lower density, in order to serve as potential platforms for cell culture and tissue regeneration. This review explores the designing of micro- and nano-metric core-shell capsules and porous spheres, based on various functions. Synthesis approaches, mechanisms of formation, general- and function-specific characteristics, challenges, and future perspectives are discussed. Recent advances in protein-based carriers with a porous matrix structure and different core-shell configurations are also presented in detail.
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Affiliation(s)
- Kusha Sharma
- Department of Chemistry, Bar-Ilan Institute for Nanotechnology and Advanced Materials, Bar-Ilan University, Ramat-Gan 52900, Israel;
| | - Ze’ev Porat
- Department of Civil and Environmental Engineering, Ben-Gurion University of the Negev, Be’er Sheva 84105, Israel
- Department of Chemistry, Nuclear Research Center-Negev, Be’er Sheva 84190, Israel
| | - Aharon Gedanken
- Department of Chemistry, Bar-Ilan Institute for Nanotechnology and Advanced Materials, Bar-Ilan University, Ramat-Gan 52900, Israel;
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