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Interaction between ovalbumin and pectin and coacervate characterization. Colloid Polym Sci 2021. [DOI: 10.1007/s00396-021-04818-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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2
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Cheng H, Fan Q, Liu T, Wusigale, Liang L. Co-encapsulation of α-tocopherol and resveratrol in oil-in-water emulsion stabilized by sodium caseinate: Impact of polysaccharide on the stability and bioaccessibility. J FOOD ENG 2020. [DOI: 10.1016/j.jfoodeng.2019.109685] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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Structural characteristics and rheological properties of ovalbumin-gum arabic complex coacervates. Food Chem 2018; 260:1-6. [DOI: 10.1016/j.foodchem.2018.03.141] [Citation(s) in RCA: 39] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2017] [Revised: 03/21/2018] [Accepted: 03/29/2018] [Indexed: 11/18/2022]
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4
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Amara CB, Degraeve P, Oulahal N, Gharsallaoui A. pH-dependent complexation of lysozyme with low methoxyl (LM) pectin. Food Chem 2017. [PMID: 28624081 DOI: 10.1016/j.foodchem.2017.03.124] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
In order to understand the effect of pH on the formation of electrostatic complexes between lysozyme and low methoxyl (LM) pectin, mixtures were prepared at a fixed lysozyme concentration (0.714g.L-1) by progressive addition of LM pectin (from 0 to 4g.L-1). Turbidity analysis allowed to determine specific conditions of pH and lysozyme/LM pectin ratio for optimal complex aggregation. The intrinsic fluorescence enhancement observed upon binding of LM pectin to lysozyme was correlated with the formation of intermolecular aggregates. Conversely, the intrinsic fluorescence decrease observed at higher LM pectin amounts was correlated with the dissociation of intermolecular aggregates. UV absorption spectroscopy showed modifications in lysozyme conformation during both the aggregation phase and the dissociation phase. The role of electrostatic interactions in the formation of lysozyme/LM pectin complexes is discussed in relation to the overall structure and the charge density profile of the two biopolymers.
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Affiliation(s)
- Chedia Ben Amara
- Univ Lyon, Université Lyon 1, ISARA Lyon, Laboratoire BioDyMIA (Bioingénierie et Dynamique Microbienne aux Interfaces Alimentaires), Equipe Mixte d'Accueil, n°3733, IUT Lyon 1, technopole Alimentec, rue Henri de Boissieu, F-01000 Bourg en Bresse, France
| | - Pascal Degraeve
- Univ Lyon, Université Lyon 1, ISARA Lyon, Laboratoire BioDyMIA (Bioingénierie et Dynamique Microbienne aux Interfaces Alimentaires), Equipe Mixte d'Accueil, n°3733, IUT Lyon 1, technopole Alimentec, rue Henri de Boissieu, F-01000 Bourg en Bresse, France
| | - Nadia Oulahal
- Univ Lyon, Université Lyon 1, ISARA Lyon, Laboratoire BioDyMIA (Bioingénierie et Dynamique Microbienne aux Interfaces Alimentaires), Equipe Mixte d'Accueil, n°3733, IUT Lyon 1, technopole Alimentec, rue Henri de Boissieu, F-01000 Bourg en Bresse, France
| | - Adem Gharsallaoui
- Univ Lyon, Université Lyon 1, ISARA Lyon, Laboratoire BioDyMIA (Bioingénierie et Dynamique Microbienne aux Interfaces Alimentaires), Equipe Mixte d'Accueil, n°3733, IUT Lyon 1, technopole Alimentec, rue Henri de Boissieu, F-01000 Bourg en Bresse, France.
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Romero A, Perez-Puyana V, Marchal P, Choplin L, Guerrero A. Emulsification process controlled by a mixer type rheometer in O/W protein-based emulsions. Lebensm Wiss Technol 2017. [DOI: 10.1016/j.lwt.2016.10.046] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Sadahira MS, Rodrigues MI, Akhtar M, Murray BS, Netto FM. Effect of egg white protein-pectin electrostatic interactions in a high sugar content system on foaming and foam rheological properties. Food Hydrocoll 2016. [DOI: 10.1016/j.foodhyd.2016.02.007] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Ovalbumin/gum arabic-stabilized emulsion: Rheology, emulsion characteristics, and Raman spectroscopic study. Food Hydrocoll 2016. [DOI: 10.1016/j.foodhyd.2015.08.010] [Citation(s) in RCA: 77] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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van den Berg M, Jara FL, Pilosof AM. Performance of egg white and hydroxypropylmethylcellulose mixtures on gelation and foaming. Food Hydrocoll 2015. [DOI: 10.1016/j.foodhyd.2015.03.001] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Humblet-Hua NPK, van der Linden E, Sagis LMC. Microcapsules with protein fibril reinforced shells: effect of fibril properties on mechanical strength of the shell. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2012; 60:9502-9511. [PMID: 22906204 DOI: 10.1021/jf3024529] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
In this study, we produced microcapsules using layer-by-layer adsorption of food-grade polyelectrolytes on an emulsion droplet template. We compared the mechanical stability of microcapsules to shells consisting of alternating layers of ovalbumin-high methoxyl pectin (Ova-HMP) complexes and semi-flexible ovalbumin (Ova) fibrils (average contour length, L(c) ~ 200 nm), with microcapsules built of alternating layers of lysozyme-high methoxyl pectin (LYS-HMP) complexes and lysozyme (LYS) fibrils. Two types of LYS fibrils were used: short and rod-like (L(c) ~ 500 nm) and long and semi-flexible (L(c) = 1.2-1.5 μm). At a low number of layers (≤4), microcapsules from Ova complexes and fibrils were stronger than microcapsules prepared from LYS complexes and fibrils. With an increase of the number of layers, the mechanical stability of microcapsules from LYS-HMP/LYS fibrils increased significantly and capsules were stronger than those prepared from Ova-HMP/Ova fibrils with the same number of layers. The contour length of the LYS fibrils did not have a significant effect on mechanical stability of the LYS-HMP/LYS fibril capsules. The stiffer LYS fibrils produce capsules with a hard but more brittle shell, whereas the semi-flexible Ova fibrils produce capsules with a softer but more stretchable shell. These results show that mechanical properties of this type of capsule can be tuned by varying the flexibility of the protein fibrils.
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Affiliation(s)
- Nam-Phuong K Humblet-Hua
- Physics and Physical Chemistry of Foods, Department of Agrotechnology and Food Sciences, Wageningen University, Wageningen, The Netherlands
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Binding and Fluorescence Resonance Energy Transfer (FRET) of Ruthenium(II)-Bipyridine-Calixarene System with Proteins—Experimental and Docking Studies. J Fluoresc 2012; 22:1345-56. [DOI: 10.1007/s10895-012-1074-9] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2012] [Accepted: 05/29/2012] [Indexed: 02/07/2023]
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11
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Zinoviadou KG, Scholten E, Moschakis T, Biliaderis CG. Engineering interfacial properties by anionic surfactant–chitosan complexes to improve stability of oil-in-water emulsions. Food Funct 2012; 3:312-9. [DOI: 10.1039/c2fo10197a] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Schmitt C, Turgeon SL. Protein/polysaccharide complexes and coacervates in food systems. Adv Colloid Interface Sci 2011; 167:63-70. [PMID: 21056401 DOI: 10.1016/j.cis.2010.10.001] [Citation(s) in RCA: 541] [Impact Index Per Article: 41.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2010] [Accepted: 10/08/2010] [Indexed: 11/29/2022]
Abstract
Since the pioneering work of Bungenberg de Jong and co-workers on gelatin-acacia gum complex coacervation in the 1920-40s, protein/polysaccharide complexes and coacervates have received increasing research interest in order to broaden the possible food applications. This review focuses on the main research streams followed in this field during the last 12 years regarding: i) the parameters influencing the formation of complexes and coacervates in protein-polysaccharide systems; ii) the characterization of the kinetics of phase separation and multi-scale structure of the complexes and coacervates; and iii) the investigation of the functional properties of complexes and coacervates in food applications. This latter section encompasses various technological aspects, namely: the viscosifying and gelling ability, the foaming and emulsifying ability and finally, the stabilization and release of bioactives or sensitive compounds.
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Affiliation(s)
- Christophe Schmitt
- Department of Food Science and Technology, Nestlé Research Center, Lausanne, Switzerland.
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Reis AV, Guilherme MR, Paulino AT, Muniz EC, Mattoso LHC, Tambourgi EB. Synthesis of hollow-structured nano- and microspheres from pectin in a nanodroplet emulsion. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2009; 25:2473-2478. [PMID: 19161267 DOI: 10.1021/la803313j] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
Hollow-structured nano- and microspheres with diameters ranging from 24 microm to 160 nm were successfully produced from chemically modified pectin (Ma-Pec) through a two-step synthesis. In a first step, the Pec was modified with glycidyl methacrylate (GMA) in a heterogeneous phase system, indeed consisting of water-soluble Pec and water-insoluble GMA, via an interfacial reaction at the interface of the GMA-water phase system after 12 h under continuous stirring of 1000 rpm at 60 degrees C. In a second step, the spheres were prepared in a water-in-benzyl alcohol nanodroplet emulsion at 12000 rpm under a bubbling stream of nitrogen in the presence of sodium persulfate, as initiator, and TEMED, as catalytic agent. FT-IR spectra revealed that the vinyl groups (CC) coming from the GMA were attached onto backbone of the polysaccharide. 13C-CP/MAS NMR spectra demonstrated that the spheres were formed via carbon-carbon pi-bonds on Ma-Pec in the water phase, for the duration of the dispersion stage. The dark center (an empty core) and edge of the hollow spheres could be easily identified by SEM micrographs. This type of polymer structure represents a class of unique material with particular importance in terms of state-of the-art applications in both nano- and microencapsulation of drugs, for example, protection shields of biologically active agents.
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Affiliation(s)
- Adriano V Reis
- Departamento de Sistemas Quimicos e Informatica DESQ, Faculdade de Engenharia Quimica, Universidade Estadual de Campinas, Zeferino Vaz 13081-970, Campinas, SP, Brazil
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Kudryashova EV, Visser AJWG, van Berkel WJH. Monomer formation and function of p-hydroxybenzoate hydroxylase in reverse micelles and in dimethylsulfoxide/water mixtures. Chembiochem 2008; 9:413-9. [PMID: 18176933 DOI: 10.1002/cbic.200700267] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Abstract
It has previously been postulated that the dimeric form of the flavoprotein p-hydroxybenzoate hydroxylase (PHBH) is important for catalysis. Here it is demonstrated that the monomeric form of PHBH is active. In a water/AOT/isooctane reverse micellar system, the function of the monomeric and dimeric forms of PHBH could be observed separately by varying the size of the micelles. A considerable decrease in the K(M) value for p-hydroxybenzoate (POHB) was found for monomeric PHBH, accompanied by a 1.5-fold decrease in enzymatic activity. The same tendency was observed when monomers of PHBH were formed by adding DMSO to the buffer. The FAD in PHBH and PHBH labeled with the fluorescence dye Alexa488 was investigated by time-resolved fluorescence anisotropy to observe monomer formation in water/DMSO mixtures. Monomer formation of PHBH occurred gradually with increasing DMSO content in the mixture. Pure PHBH monomers were detected at DMSO concentrations of 30 % (v/v) and higher.
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Affiliation(s)
- Elena V Kudryashova
- Laboratory of Biochemistry, Wageningen University, Wageningen, The Netherlands
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Rodríguez Patino JM, Carrera Sánchez C, Rodríguez Niño MR. Implications of interfacial characteristics of food foaming agents in foam formulations. Adv Colloid Interface Sci 2008; 140:95-113. [PMID: 18281008 DOI: 10.1016/j.cis.2007.12.007] [Citation(s) in RCA: 154] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2007] [Accepted: 12/20/2007] [Indexed: 11/29/2022]
Abstract
The manufacture of food dispersions (emulsions and foams) with specific quality attributes depends on the selection of the most appropriate raw materials and processing conditions. These dispersions being thermodynamically unstable require the use of emulsifiers (proteins, lipids, phospholipids, surfactants etc.). Emulsifiers typically coexist in the interfacial layer with specific functions in the processing and properties of the final product. The optimum use of emulsifiers depends on our knowledge of their interfacial physico-chemical characteristics - such as surface activity, amount adsorbed, structure, thickness, topography, ability to desorb (stability), lateral mobility, interactions between adsorbed molecules, ability to change conformation, interfacial rheological properties, etc. -, the kinetics of film formation and other associated physico-chemical properties at fluid interfaces. These monolayers constitute well defined systems for the analysis of food colloids at the micro- and nano-scale level, with several advantages for fundamental studies. In the present review we are concerned with the analysis of physico-chemical properties of emulsifier films at fluid interfaces in relation to foaming. Information about the above properties would be very helpful in the prediction of optimised formulations for food foams. We concluded that at surface pressures lower than that of monolayer saturation the foaming capacity is low, or even zero. A close relationship was observed between foaming capacity and the rate of diffusion of the foaming agent to the air-water interface. However, the foam stability correlates with the properties of the film at long-term adsorption.
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Affiliation(s)
- Juan M Rodríguez Patino
- Departamento de Ingeniería Química, Facultad de Química, Universidad de Sevilla, C/ Prof. García González, 1, E-41012-Sevilla, Spain.
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Translational and rotational motions of albumin sensed by a non-covalent associated porphyrin under physiological and acidic conditions: a fluorescence correlation spectroscopy and time resolved anisotropy study. J Fluoresc 2008; 18:601-10. [PMID: 18264814 DOI: 10.1007/s10895-008-0329-y] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2007] [Accepted: 01/22/2008] [Indexed: 10/22/2022]
Abstract
The interaction between a free-base, anionic water-soluble porphyrin, TSPP, and the drug carrier protein, bovine serum albumin (BSA) has been studied by time-resolved fluorescence anisotropy (TRFA) and fluorescence correlation spectroscopy (FCS) at two different pH-values. Both rotational correlation times and translational diffusion times of the fluorescent species indicate that TSPP binding to albumin induces very little conformational changes in the protein under physiological conditions. By contrast, at low pH, a bi-exponential decay is obtained where a short rotational correlation time (phi (int) = 1.2 ns) is obtained, which is likely associated to wobbling movement of the porphyrin in the protein binding site. These physical changes are corroborated by circular dichroism (CD) data which show a 37% loss in the protein helicity upon acidification of the medium. In the presence of excess porphyrin formation of porphyrin J-aggregates is induced, which can be detected by time-resolved fluorescence with short characteristic times. This is also reflected in FCS data by an increase in molecular brightness together with a decrease in the number of fluorescent molecules passing through the detection volume of the sample.
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Kudryashova EV, de Jongh HH. Modulation of the adsorption properties at air–water interfaces of complexes of egg white ovalbumin with pectin by the dielectric constant. J Colloid Interface Sci 2008; 318:430-9. [DOI: 10.1016/j.jcis.2007.10.040] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2007] [Revised: 10/22/2007] [Accepted: 10/25/2007] [Indexed: 11/29/2022]
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Structure of mixed β-lactoglobulin/pectin adsorbed layers at air/water interfaces; a spectroscopy study. J Colloid Interface Sci 2008; 317:137-47. [DOI: 10.1016/j.jcis.2007.09.030] [Citation(s) in RCA: 47] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2007] [Revised: 09/13/2007] [Accepted: 09/13/2007] [Indexed: 11/21/2022]
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