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Tello P, Santos J, Perez-Puyana VM, Romero A, Trujillo-Cayado LA. Characterization of emulgels formulated with phycocyanin and diutan gum as a novel approach for biocompatible delivery systems. Int J Biol Macromol 2024; 268:131599. [PMID: 38626840 DOI: 10.1016/j.ijbiomac.2024.131599] [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: 01/23/2024] [Revised: 04/02/2024] [Accepted: 04/12/2024] [Indexed: 05/02/2024]
Abstract
Phycocyanin (PC), a protein derived from algae, is non-toxic and biocompatible. Due to its environmental and sustainable properties, it has been studied as an alternative stabilizer for food emulsions. In this sense, the main objective of this work is to evaluate the effectiveness of PC and its use in combination with diutan gum (DG), a biological macromolecule, to prepare emulgels formulated with avocado oil. Z-potential measurements show that the optimum pH for working with PC is 2.5. Furthermore, the system exhibited a structured interface at this pH. The surface tension did not decrease further above 1.5 wt% PC. Interestingly, emulsions formulated with >1.5 wt% PC showed recoalescence immediately after preparation. Although 1.5 wt% had the smallest droplet size, this emulsion underwent creaming due to the low viscosity of the system. DG was used in combination with PC to increase viscosity and reduce creaming. As little as 0.1 wt% DG was sufficient to form an emulgel when incorporated into the previous emulsion, which exhibited pseudoplastic behaviour and viscoelastic properties with very low creaming rates. However, the use of PC in combination with DG resulted in a non-aggregated and stable emulgel with 1.5 wt% PC and 0.1 wt% DG.
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Affiliation(s)
- Patricia Tello
- Departamento de Ingeniería Química, Escuela Politécnica Superior, Universidad de Sevilla, c/Virgen de África, 7, 41011 Sevilla, Spain
| | - Jenifer Santos
- Departamento de Ciencias de la Salud y Biomedicina, Facultad de Ciencias de la Salud, Universidad Loyola Andalucía, Avda. de las Universidades s/n, Dos Hermanas, 41704 Sevilla, Spain
| | - Víctor M Perez-Puyana
- Departamento de Ingeniería Química, Facultad de Química, Universidad de Sevilla, c/Tramontana s/n, 41012 Sevilla, Spain
| | - Alberto Romero
- Departamento de Ingeniería Química, Facultad de Química, Universidad de Sevilla, c/Tramontana s/n, 41012 Sevilla, Spain
| | - Luis A Trujillo-Cayado
- Departamento de Ingeniería Química, Escuela Politécnica Superior, Universidad de Sevilla, c/Virgen de África, 7, 41011 Sevilla, Spain.
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2
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Dopierała K, Knitter M, Dobrzyńska-Mizera M, Andrzejewski J, Bartkowska A, Prochaska K. Surface Functionalization of Poly(lactic acid) via Deposition of Hydroxyapatite Monolayers for Biomedical Applications. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2023; 39:15610-15619. [PMID: 37882695 PMCID: PMC10634356 DOI: 10.1021/acs.langmuir.3c01914] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/10/2023] [Revised: 10/16/2023] [Accepted: 10/16/2023] [Indexed: 10/27/2023]
Abstract
The surface modification of poly(lactic acid) (PLA) using hydroxyapatite (HAP) particles via Langmuir-Blodgett (LB) and Langmuir-Schaefer (LS) approaches has been reported. The HAP monolayer was characterized at the air/water interface and deposited on three-dimensional (3D) printed poly(lactic acid). The deposition of HAP particles using the LS approach led to a larger surface coverage in comparison to the LB method, which produces a less uniform coating because of the aggregation of the particles. After the transfer of HAP on the PLA surface, the wettability values remained within the desired range. The presence of HAP on the surface of the polymer altered the topography and roughness in the nanoscale, as evidenced by the atomic force microscopy (AFM) images. This effect can be beneficial for the osteointegration of polymeric implants at an early stage, as well as for the reduction of the adherence of the microbial biofilm. Overall, the results suggest that the LS technique could be a promising approach for surface modification of PLA by hydroxyapatite with respective advantages in the biomedical field.
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Affiliation(s)
- Katarzyna Dopierała
- Institute
of Chemical Technology and Engineering, Poznan University of Technology, Berdychowo 4, 60-965 Poznań, Poland
| | - Monika Knitter
- Institute
of Material Technology, Poznan University
of Technology, Piotrowo
3, 61-138 Poznań, Poland
| | - Monika Dobrzyńska-Mizera
- Institute
of Material Technology, Poznan University
of Technology, Piotrowo
3, 61-138 Poznań, Poland
| | - Jacek Andrzejewski
- Institute
of Material Technology, Poznan University
of Technology, Piotrowo
3, 61-138 Poznań, Poland
| | - Aneta Bartkowska
- Poznan
University of Technology, Faculty of Materials Engineering and Technical
Physics, Institute of Material Science and
Engineering, Jana Pawła
II 24, 61-138 Poznań, Poland
| | - Krystyna Prochaska
- Institute
of Chemical Technology and Engineering, Poznan University of Technology, Berdychowo 4, 60-965 Poznań, Poland
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3
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Xu Y, Li X, Dai Z, Zhang Z, Feng L, Nie M, Liu C, Li D, Zhang M. Study on the relationship between lutein bioaccessibility and in vitro lipid digestion of nanostructured lipid carriers with different interface structures. Food Hydrocoll 2023. [DOI: 10.1016/j.foodhyd.2023.108569] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/11/2023]
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4
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Hsieh TL, Garoff S, Tilton RD. Marangoni spreading time evolution and synergism in binary surfactant mixtures. J Colloid Interface Sci 2022; 623:685-696. [DOI: 10.1016/j.jcis.2022.05.063] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2022] [Revised: 05/09/2022] [Accepted: 05/10/2022] [Indexed: 11/30/2022]
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5
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Wojciechowski K. Surface tension of native and modified plant seed proteins. Adv Colloid Interface Sci 2022; 302:102641. [PMID: 35299137 DOI: 10.1016/j.cis.2022.102641] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2021] [Revised: 03/07/2022] [Accepted: 03/07/2022] [Indexed: 12/01/2022]
Abstract
The present review, dedicated to Prof. Zbigniew Adamczyk on the occasion of his 70th anniversary, covers the literature data on surface tension and surface compression (dilational) rheology of the adsorbed layers of 21 plant seed proteins (10 leguminous and 11 non-leguminous plants). They are typically analyzed as protein concentrates or isolates, the latter usually obtained by isoelectric precipitation or diafiltration. Despite generally lower solubility, as compared to their animal counterparts (lactoglobulins, caseins, albumins, etc.), the plant seed proteins are also capable of lowering surface tension and forming viscoelastic adsorbed layers. Many seed proteins serve mostly as amino acids reservoirs for the future seedling (storage proteins), hence their instantaneous amphiphilicity is not always sufficient to induce strong adsorption at the aqueous-air interface. They can be, however, conveniently unfolded, hydrolyzed and/or chemically/enzymatically modified to expose more hydrophilic or hydrophobic patches. As shown in numerous contributions reviewed below, the resulting shift of the hydrophilic-lipophilic balance can boost their surface activity to the level comparable to that of many animal proteins or low molecular weight surfactants. An important advantage of the plant seed proteins over the animal ones is their much lower environmental cost and abundance in many plants (e.g. ~40% in sunflower or soybean seeds).
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Affiliation(s)
- Kamil Wojciechowski
- Faculty of Chemistry, Warsaw University of Technology, Noakowskiego 3, Warsaw 00-664, Poland.
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6
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Ullah S, Zhang P, Wang Y, Chen Z, Wang C, Liu C, Xu B. Effect of electrolytes on the interfacial rheological behaviors of N-cocoyl glycinate. J DISPER SCI TECHNOL 2022. [DOI: 10.1080/01932691.2020.1844736] [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]
Affiliation(s)
- Sana Ullah
- School of Light Industry, Beijing Technology and Business University, Beijing, P. R. China
| | - Pingping Zhang
- School of Light Industry, Beijing Technology and Business University, Beijing, P. R. China
| | - Yuzhao Wang
- School of Light Industry, Beijing Technology and Business University, Beijing, P. R. China
| | - Zhenghong Chen
- School of Light Industry, Beijing Technology and Business University, Beijing, P. R. China
| | - Ce Wang
- School of Light Industry, Beijing Technology and Business University, Beijing, P. R. China
| | - Changyao Liu
- School of Light Industry, Beijing Technology and Business University, Beijing, P. R. China
| | - Baocai Xu
- School of Light Industry, Beijing Technology and Business University, Beijing, P. R. China
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7
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Fang Q, Li R, Li P, Yuan Y, Zhuang H, Zhang C. Interaction between soy protein isolate and surfactant at the interface of antibacterial nanoemulsions loaded with riboflavin tetra butyrate. Int J Food Sci Technol 2022. [DOI: 10.1111/ijfs.15424] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Affiliation(s)
- Qiangsheng Fang
- School of Materials Science and Engineering Jilin University Changchun 130022 China
| | - Rui Li
- School of Materials Science and Engineering Jilin University Changchun 130022 China
| | - Peihong Li
- School of Materials Science and Engineering Jilin University Changchun 130022 China
| | - Yuan Yuan
- College of Food Science and Engineering Jilin University Changchun 130062 China
| | - Hong Zhuang
- College of Food Science and Engineering Jilin University Changchun 130062 China
| | - Chunling Zhang
- School of Materials Science and Engineering Jilin University Changchun 130022 China
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8
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Hsieh TL, Law S, Garoff S, Tilton RD. pH-Dependent Interfacial Tension and Dilatational Modulus Synergism of Oil-Soluble Fatty Acid and Water-Soluble Cationic Surfactants at the Oil/Water Interface. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2021; 37:11573-11581. [PMID: 34554763 DOI: 10.1021/acs.langmuir.1c01889] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
While the concept of interfacial tension synergism in surfactant mixtures is well established, little attention has been paid to the possibility of synergistic effects on the interfacial rheology of mixed surfactant systems. Furthermore, interfacial tension synergism is most often investigated for mixtures of surfactants residing in a single phase. Here, we define dilatational modulus synergism and report a study of interfacial tension isotherms and complex dilatational moduli for a binary surfactant system with the two surfactants accessing the oil/water interface from opposite sides. Using an oil-soluble fatty acid surfactant (palmitic acid, PA) that may be ionized at the oil/water interface and a quaternary ammonium water-soluble cationic surfactant (tetradecyltrimethylammonium bromide, TTAB), the binary interfacial interaction was tuned by the aqueous phase pH. Interfacial tensions and dilatational moduli were measured by the pendant drop method for the binary surfactant system as well as the corresponding single-surfactant systems to identify synergistic effects. The possible occurrence of dilatational modulus synergism was probed from two perspectives: one for a fixed total surfactant concentration and the other for a fixed interfacial tension. The aqueous pH was found to have a controlling effect on both interfacial tension synergism and the dilatational modulus synergism. The conditions for interfacial tension synergism coincided with those for the storage modulus synergism: both tension and storage modulus synergisms were observed under all conditions tested at pH 7 where PA was mostly deprotonated, for both perspectives examined, but not for any conditions tested at pH 3 where PA is mostly protonated. The loss modulus synergism exhibited more complex behaviors, such as frequency and interfacial tension dependences, but again was only observed at pH 7. The tension and modulus synergism at pH 7 were attributed to the increased attraction between ionized PA and cationic TTAB and the formation of catanionic complexes at the oil/water interface.
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Affiliation(s)
- Tsung-Lin Hsieh
- Center for Complex Fluids Engineering, Carnegie Mellon University, Pittsburgh, Pennsylvania 15213, United States
- Department of Chemical Engineering, Carnegie Mellon University, Pittsburgh, Pennsylvania 15213, United States
| | - Stephen Law
- Center for Complex Fluids Engineering, Carnegie Mellon University, Pittsburgh, Pennsylvania 15213, United States
- Department of Chemical Engineering, Carnegie Mellon University, Pittsburgh, Pennsylvania 15213, United States
| | - Stephen Garoff
- Center for Complex Fluids Engineering, Carnegie Mellon University, Pittsburgh, Pennsylvania 15213, United States
- Department of Physics, Carnegie Mellon University, Pittsburgh, Pennsylvania 15213, United States
| | - Robert D Tilton
- Center for Complex Fluids Engineering, Carnegie Mellon University, Pittsburgh, Pennsylvania 15213, United States
- Department of Chemical Engineering, Carnegie Mellon University, Pittsburgh, Pennsylvania 15213, United States
- Department of Biomedical Engineering, Carnegie Mellon University, Pittsburgh, Pennsylvania 15213, United States
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9
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Isaac Contreras-Ramírez J, Alberto Gallegos-Infante J, Rosas-Flores W, Francisco González-Laredo R, Fernando Toro-Vázquez J, David Pérez-Martínez J. Relationship of rheological and thermal properties in organogel emulsions (W/O): Influence of temperature, time, and surfactant concentration on thermomechanical behavior. J Mol Liq 2021. [DOI: 10.1016/j.molliq.2021.116403] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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10
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Liu J, Wang L, Li Y, Wang J, Yang X. Adsorption properties of N-tetradecyl- N, N-dimethyl- N-(2,3-epoxy propyl) ammonium chloride with inorganic salts at air/water. J DISPER SCI TECHNOL 2021. [DOI: 10.1080/01932691.2020.1764851] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Affiliation(s)
- Jiawei Liu
- Shandong Provincial Key Laboratory of Molecular Engineering, Qilu University of Technology-Shandong Academy of Science, Ji’nan, China
| | - Ling Wang
- Shandong Provincial Key Laboratory of Molecular Engineering, Qilu University of Technology-Shandong Academy of Science, Ji’nan, China
| | - Yan Li
- Shandong Provincial Key Laboratory of Molecular Engineering, Qilu University of Technology-Shandong Academy of Science, Ji’nan, China
| | - Jingui Wang
- Shandong Provincial Key Laboratory of Molecular Engineering, Qilu University of Technology-Shandong Academy of Science, Ji’nan, China
| | - Xiaodeng Yang
- Shandong Provincial Key Laboratory of Molecular Engineering, Qilu University of Technology-Shandong Academy of Science, Ji’nan, China
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11
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β-Lactoglobulin Adsorption Layers at the Water/Air Surface: 5. Adsorption Isotherm and Equation of State Revisited, Impact of pH. COLLOIDS AND INTERFACES 2021. [DOI: 10.3390/colloids5010014] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
The theoretical description of the adsorption of proteins at liquid/fluid interfaces suffers from the inapplicability of classical formalisms, which soundly calls for the development of more complicated adsorption models. A Frumkin-type thermodynamic 2-d solution model that accounts for nonidealities of interface enthalpy and entropy was proposed about two decades ago and has been continuously developed in the course of comparisons with experimental data. In a previous paper we investigated the adsorption of the globular protein β-lactoglobulin at the water/air interface and used such a model to analyze the experimental isotherms of the surface pressure, Π(c), and the frequency-, f-, dependent surface dilational viscoelasticity modulus, E(c)f, in a wide range of protein concentrations, c, and at pH 7. However, the best fit between theory and experiment proposed in that paper appeared incompatible with new data on the surface excess, Γ, obtained from direct measurements with neutron reflectometry. Therefore, in this work, the same model is simultaneously applied to a larger set of experimental dependences, e.g., Π(c), Γ(c), E(Π)f, etc., with E-values measured strictly in the linear viscoelasticity regime. Despite this ambitious complication, a best global fit was elaborated using a single set of parameter values, which well describes all experimental dependencies, thus corroborating the validity of the chosen thermodynamic model. Furthermore, we applied the model in the same manner to experimental results obtained at pH 3 and pH 5 in order to explain the well-pronounced effect of pH on the interfacial behavior of β-lactoglobulin. The results revealed that the propensity of β-lactoglobulin globules to unfold upon adsorption and stretch at the interface decreases in the order pH 3 > pH 7 > pH 5, i.e., with decreasing protein net charge. Finally, we discuss advantages and limitations in the current state of the model.
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12
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Fayzi P, Bastani D, Lotfi M, Miller R. Influence of Surface‐Modified Nanoparticles on the Hydrodynamics of Rising Bubbles. Chem Eng Technol 2021. [DOI: 10.1002/ceat.201900234] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Affiliation(s)
- Pouyan Fayzi
- Sharif University of Technology Chemical & Petroleum Engineering Department 11155-9567 Tehran Iran
| | - Dariush Bastani
- Sharif University of Technology Chemical & Petroleum Engineering Department 11155-9567 Tehran Iran
| | - Marzieh Lotfi
- Jundi-Shapur University of Technology Department of Chemical Engineering 64615/334 Dezful Iran
| | - Reinhard Miller
- Technical University of Darmstadt Physics Department 64289 Darmstadt Germany
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13
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Li R, Fang Q, Li P, Zhang C, Yuan Y, Zhuang H. Effects of Emulsifier Type and Post-Treatment on Stability, Curcumin Protection, and Sterilization Ability of Nanoemulsions. Foods 2021; 10:foods10010149. [PMID: 33450810 PMCID: PMC7828267 DOI: 10.3390/foods10010149] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2020] [Revised: 01/09/2021] [Accepted: 01/11/2021] [Indexed: 12/29/2022] Open
Abstract
Curcumin has a high inhibitory effect on many potential diseases caused by bacteria and fungi. However, its degradability and low water solubility limit its application. Loading curcumin with an emulsion delivery system can overcome these problems. Five different types of emulsifiers were used to prepare the curcumin-loaded nanoemulsions, namely, Tween 80 (T80), Span 80 (S80), sodium dodecyl sulfate (SDS), soybean protein isolate (SPI), and lecithin (LEC). The effects of emulsifier types and post-treatment methods on emulsion stability and curcumin-load efficiency were studied. In addition, photodynamic inactivation was used to test the antibacterial effect of nanoemulsions on Escherichia coli under blue light excitation. The five types of emulsifiers could form uniform emulsions with good storage stability and with antibacterial capacity on Escherichia coli. Among them, the T80 and LEC emulsions had good stability, coating effect, and sterilization performance under heating or room temperature. Both curcumin-loaded bactericidal emulsions had the potential for large-scale applications. A nanoemulsions delivery system could effectively improve the dispersion and chemical stability of curcumin in water. An emulsion loaded with antibacterial photosensitizer represents a new idea for the storage and preservation of food commodities.
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Affiliation(s)
- Rui Li
- School of Materials Science and Engineering, Jilin University, Changchun 130022, China; (R.L.); (Q.F.); (P.L.)
| | - Qiangsheng Fang
- School of Materials Science and Engineering, Jilin University, Changchun 130022, China; (R.L.); (Q.F.); (P.L.)
| | - Peihong Li
- School of Materials Science and Engineering, Jilin University, Changchun 130022, China; (R.L.); (Q.F.); (P.L.)
| | - Chunling Zhang
- School of Materials Science and Engineering, Jilin University, Changchun 130022, China; (R.L.); (Q.F.); (P.L.)
- Correspondence: ; Tel.: +86-431-8509-5170
| | - Yuan Yuan
- College of Food Science and Engineering, Jilin University, Changchun 130062, China; (Y.Y.); (H.Z.)
| | - Hong Zhuang
- College of Food Science and Engineering, Jilin University, Changchun 130062, China; (Y.Y.); (H.Z.)
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14
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Surface tension and dilational rheology of mixed β-casein – β-lactoglobulin aqueous solutions at the water/air interface. Food Hydrocoll 2020. [DOI: 10.1016/j.foodhyd.2020.105883] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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15
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Hu N, Li Y, Yang C, Wu Z, Liu W. In-situ activated nanoparticle as an efficient and recyclable foam stabilizer for enhancing foam separation of LAS. JOURNAL OF HAZARDOUS MATERIALS 2019; 379:120843. [PMID: 31279309 DOI: 10.1016/j.jhazmat.2019.120843] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/07/2018] [Revised: 04/05/2019] [Accepted: 06/27/2019] [Indexed: 05/07/2023]
Abstract
Linear alkylbenzene sulfonate (LAS) is a particular member of the emerging contaminants, because of its increasingly ubiquitous use and tremendous harm to the environment and wastewater treatment plant. Herein, we develop a novel two-stage foam separation to recover LAS (18.7-91.0 mg/L) from laundry wastewater. We first reported the fabrication of activated silica nanoparticle (SNP) via a facile and scalable in-situ approach. To obtain a desirable surface property, the key design element was the utilization of amphoteric surfactant, viz. cocamidopropyl betaine, as the modifier. In the first-stage, activated SNP could serve as an efficient foam stabilizer to improve the foam stability and the interfacial adsorption of LAS. Remarkably, LAS concentration in effluent decreased to very low levels of 1.9-2.9 mg/L with a proper enrichment ratio, and met the emission standard. In the second-stage, we originally adopted the intensification of liquid drainage to selectively recycle activated SNP from LAS. An inclined foam channel (IFC) covered by hydrophobic coating was constructed and the maximum recovery percentage of SNP reached 91.5%, indicating that the activated SNP was recyclable. This work definitely proves that the integration of nanotechnology in foam separation can make wastewater treatment more efficient and less expensive.
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Affiliation(s)
- Nan Hu
- School of Chemical Engineering and Technology, Hebei University of Technology, No. 8 Guangrong Road, Dingzi Gu, Hongqiao District, Tianjin, 300130, China
| | - Yanfei Li
- State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing, 100029, China
| | - Chunyan Yang
- School of Chemical Engineering and Technology, Hebei University of Technology, No. 8 Guangrong Road, Dingzi Gu, Hongqiao District, Tianjin, 300130, China
| | - Zhaoliang Wu
- School of Chemical Engineering and Technology, Hebei University of Technology, No. 8 Guangrong Road, Dingzi Gu, Hongqiao District, Tianjin, 300130, China.
| | - Wei Liu
- School of Chemical Engineering and Technology, Hebei University of Technology, No. 8 Guangrong Road, Dingzi Gu, Hongqiao District, Tianjin, 300130, China.
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16
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Kaptay G. Improved Derivation of the Butler Equations for Surface Tension of Solutions. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2019; 35:10987-10992. [PMID: 31355648 DOI: 10.1021/acs.langmuir.9b01892] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
The Butler equation was published in 1932 to describe the equilibrium surface composition and equilibrium surface tension of solutions. Unfortunately, it used the so-called "partial surface tension of a component", which was not properly defined by Butler, leading to a reluctant acceptance of this equation. Although the present author defined the partial surface tension recently in this journal, it is considered an advantage to derive the same key equations of Butler without the need to employ the concept of partial surface tension. This derivation is offered in the present paper, starting from the two fundamental equations of Gibbs. No assumptions are made on the thickness and structure of the surface region, it is only supposed that the surface region has an average composition with a negligible concentration gradient. In this way, the Butler equations are obtained, which have more general validity compared to the original Butler equations derived by supposing a surface monolayer.
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Affiliation(s)
- George Kaptay
- Department Nanotechnology , University of Miskolc , Egyetemvaros , Miskolc 3515 , Hungary
- Department Materials Development , BAY-ENG , 2 Igloi , Miskolc 3519 , Hungary
- MTA ME Materials Science Research Group , Egyetemvaros , Miskolc 3515 , Hungary
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17
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Nanoparticle as a novel foam controller for enhanced protein separation from sweet potato starch wastewater. Sep Purif Technol 2019. [DOI: 10.1016/j.seppur.2018.07.064] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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18
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Effect of Amplitude on the Surface Dilational Visco-Elasticity of Protein Solutions. COLLOIDS AND INTERFACES 2018. [DOI: 10.3390/colloids2040057] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Harmonic drop surface area oscillations are performed at a fixed frequency (0.1 Hz) to measure the dilational visco-elasticity for three proteins: β-casein (BCS), β-lactoglobulin (BLG), and human serum albumin (HSA). The surface area oscillations were performed with different amplitudes in order to find the origin of non-linearity effects. The analysis of data shows that the non-linearity in the equation of state—i.e., the relation between surface pressure and surface concentration of adsorbed protein molecules—is the main source of the amplitude effects on the apparent visco-elasticity, while perturbations due to non-uniform expansions and compressions of the surface layer, inertia effects leading to deviations of the drop profile from the Laplacian shape, or convective transport in the drop bulk are of less importance. While for the globular proteins, HSA and BLG the amplitude effects on the apparent visco-elasticity are rather large, for the non-globular protein BCS this effect is negligible in the studied range of up to 10% area deformation.
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19
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Liu KX, Yin HJ, Zhang L, Jin ZQ, Zhang L. Dilational rheological properites of oxyethylated fatty acid methyl esters at kerosene-water interface. J DISPER SCI TECHNOL 2018. [DOI: 10.1080/01932691.2018.1461646] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
Affiliation(s)
- Ke-xin Liu
- College of Petroleum Engineering, Northeast Petroleum University, Daqing 163318, China
| | - Hong-jun Yin
- College of Petroleum Engineering, Northeast Petroleum University, Daqing 163318, China
| | - Lei Zhang
- Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190, China
| | - Zhi-qiang Jin
- Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190, China
| | - Lu Zhang
- Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190, China
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Fainerman VB, Kovalchuk VI, Aksenenko EV, Zinkovych II, Makievski AV, Nikolenko MV, Miller R. Dilational Viscoelasticity of Proteins Solutions in Dynamic Conditions. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2018; 34:6678-6686. [PMID: 29783835 DOI: 10.1021/acs.langmuir.8b00631] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Drop profile analysis tensiometry used in the oscillating drop mode provides the dilational viscoelasticity of adsorption layers at liquid interfaces. Applied during the progress of adsorption the dynamic surface rheology can be monitored. For β-casein solutions at the same surface pressure values, the larger the dynamic dilational viscoelasticity the longer the adsorption time, i.e., the smaller the studied protein concentration is. For β-lactoglobulin and human serum albumin, the differences in the viscoelasticity values are less or not dependent on the adsorption time at identical surface pressures. The observed effects are caused by the flexibility of BCS, while the globular proteins BLG and HSA do not change their conformation significantly within the adsorption layer.
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Affiliation(s)
| | | | - Eugene V Aksenenko
- Institute of Colloid Chemistry and Chemistry of Water , Kyiv (Kiev) 03680 , Ukraine
| | - Igor I Zinkovych
- Maxim Gorki Donetsk National Medical University , Kirovohrad 25015 , Ukraine
| | | | - Mykola V Nikolenko
- Ukrainian State University of Chemical Technology , Dnipro 49005 , Ukraine
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21
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Kaptay G. The chemical (not mechanical) paradigm of thermodynamics of colloid and interface science. Adv Colloid Interface Sci 2018; 256:163-192. [PMID: 29705027 DOI: 10.1016/j.cis.2018.04.007] [Citation(s) in RCA: 39] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2017] [Revised: 03/25/2018] [Accepted: 04/09/2018] [Indexed: 12/22/2022]
Abstract
In the most influential monograph on colloid and interfacial science by Adamson three fundamental equations of "physical chemistry of surfaces" are identified: the Laplace equation, the Kelvin equation and the Gibbs adsorption equation, with a mechanical definition of surface tension by Young as a starting point. Three of them (Young, Laplace and Kelvin) are called here the "mechanical paradigm". In contrary it is shown here that there is only one fundamental equation of the thermodynamics of colloid and interface science and all the above (and other) equations of this field follow as its derivatives. This equation is due to chemical thermodynamics of Gibbs, called here the "chemical paradigm", leading to the definition of surface tension and to 5 rows of equations (see Graphical abstract). The first row is the general equation for interfacial forces, leading to the Young equation, to the Bakker equation and to the Laplace equation, etc. Although the principally wrong extension of the Laplace equation formally leads to the Kelvin equation, using the chemical paradigm it becomes clear that the Kelvin equation is generally incorrect, although it provides right results in special cases. The second row of equations provides equilibrium shapes and positions of phases, including sessile drops of Young, crystals of Wulff, liquids in capillaries, etc. The third row of equations leads to the size-dependent equations of molar Gibbs energies of nano-phases and chemical potentials of their components; from here the corrected versions of the Kelvin equation and its derivatives (the Gibbs-Thomson equation and the Freundlich-Ostwald equation) are derived, including equations for more complex problems. The fourth row of equations is the nucleation theory of Gibbs, also contradicting the Kelvin equation. The fifth row of equations is the adsorption equation of Gibbs, and also the definition of the partial surface tension, leading to the Butler equation and to its derivatives, including the Langmuir equation and the Szyszkowski equation. Positioning the single fundamental equation of Gibbs into the thermodynamic origin of colloid and interface science leads to a coherent set of correct equations of this field. The same provides the chemical (not mechanical) foundation of the chemical (not mechanical) discipline of colloid and interface science.
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Zheng J, Li Y, Zhao J, Wei T, Yang X, Chai J. Aggregation behavior and adsorption properties of salt-free catanionic surfactant mixtures containing tetradecyltrimethyl ammonium salts. J DISPER SCI TECHNOL 2018. [DOI: 10.1080/01932691.2018.1452756] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
Affiliation(s)
- Jialin Zheng
- Key Laboratory of Fine Chemicals (Shandong Province), Qilu University of Technology, Ji’nan, China
| | - Yan Li
- Key Laboratory of Fine Chemicals (Shandong Province), Qilu University of Technology, Ji’nan, China
- College of Chemistry, Chemical Engineering and Materials Science, Collaborative Innovation Center of Functionalized Probes for Chemical Imaging in Universities of Shandong, Shandong Normal University, Ji’nan, China
| | - Jing Zhao
- Key Laboratory of Fine Chemicals (Shandong Province), Qilu University of Technology, Ji’nan, China
| | - Tao Wei
- Key Laboratory of Fine Chemicals (Shandong Province), Qilu University of Technology, Ji’nan, China
| | - Xiaodeng Yang
- Key Laboratory of Fine Chemicals (Shandong Province), Qilu University of Technology, Ji’nan, China
| | - Jinling Chai
- College of Chemistry, Chemical Engineering and Materials Science, Collaborative Innovation Center of Functionalized Probes for Chemical Imaging in Universities of Shandong, Shandong Normal University, Ji’nan, China
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Fan L, Xie P, Wang Y, Huang Z, Zhou J. Biosurfactant-Protein Interaction: Influences of Mannosylerythritol Lipids-A on β-Glucosidase. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2018; 66:238-246. [PMID: 29239606 DOI: 10.1021/acs.jafc.7b04469] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
In this work, the influences of a biosurfactant, mannosylerythritol lipids-A (MEL-A) toward β-glucosidase activity and their molecular interactions were studied by using differential scanning calorimetry (DSC), circular dichroism spectroscopy (CD), isothermal titration calorimetry (ITC), and docking simulation. The enzyme inhibition kinetics data showed that MEL-A at a low concentration (< critical micelle concentration (CMC), 20.0 ± 5.0 μM) enhanced β-glucosidase activity, whereas it inhibited the enzyme activity at higher concentrations more than 20.0 μM, followed by a decreased Vmax and Km of β-glucosidase. The thermodynamics and structural data demonstrated that the midpoint temperature (Tm) and unfolding enthalpy (ΔH) of β-glucosidase was shifted to high values (76.6 °C, 126.3 J/g) in the presence of MEL-A, and the secondary structure changes of β-glucosidase, including the increased α-helix, β-turn, or random coil contents, and a decreased β-sheet content were caused by MEL-A at a CMC concentration. The further ITC and docking simulations suggested the bindings of MEL-A toward β-glucosidase were driven by weak hydrophobic interactions happened between the amino acid residues of β-glucosidase and the fatty acid residues of MEL-A, in addition to hydrogen bonds between amino acids and hydroxyl in glycosyl residues of this biosurfactant.
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Affiliation(s)
- Linlin Fan
- Institute of Agro-product Processing , Jiangsu Academy of Agricultural Sciences, Nanjing, Jiangsu 210014, China
| | - Pujun Xie
- Institute of Chemical Industry of Forest Products, CAF , Key Laboratory of Biomass Energy and Material, Nanjing, Jiangsu 210042, China
| | - Ying Wang
- Institute of Agro-product Processing , Jiangsu Academy of Agricultural Sciences, Nanjing, Jiangsu 210014, China
| | - Zisu Huang
- Institute of Agro-product Processing , Jiangsu Academy of Agricultural Sciences, Nanjing, Jiangsu 210014, China
| | - Jianzhong Zhou
- Institute of Agro-product Processing , Jiangsu Academy of Agricultural Sciences, Nanjing, Jiangsu 210014, China
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McClements DJ, Jafari SM. Improving emulsion formation, stability and performance using mixed emulsifiers: A review. Adv Colloid Interface Sci 2018; 251:55-79. [PMID: 29248154 DOI: 10.1016/j.cis.2017.12.001] [Citation(s) in RCA: 459] [Impact Index Per Article: 76.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2017] [Revised: 12/01/2017] [Accepted: 12/02/2017] [Indexed: 12/14/2022]
Abstract
The formation, stability, and performance of oil-in-water emulsions may be improved by using combinations of two or more different emulsifiers, rather than an individual type. This article provides a review of the physicochemical basis for the ability of mixed emulsifiers to enhance emulsion properties. Initially, an overview of the most important physicochemical properties of emulsifiers is given, and then the nature of emulsifier interactions in solution and at interfaces is discussed. The impact of using mixed emulsifiers on the formation and stability of emulsions is then reviewed. Finally, the impact of using mixed emulsifiers on the functional performance of emulsifiers is given, including gastrointestinal fate, oxidative stability, antimicrobial activity, and release characteristics. This information should facilitate the selection of combinations of emulsifiers that will have improved performance in emulsion-based products.
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Affiliation(s)
- David Julian McClements
- Department of Food Science, University of Massachusetts, Chenoweth Laboratory, Amherst, MA, USA.
| | - Seid Mahdi Jafari
- Department of Food Materials and Process Design Engineering, Gorgan University of Agricultural Sciences and Natural Resources, Gorgan, Iran
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Novikova AA, Vlasov PS, Lin SY, Sedláková Z, Noskov BA. Dynamic surface properties of poly(methylalkyldiallylammonium chloride) solutions. J Taiwan Inst Chem Eng 2017. [DOI: 10.1016/j.jtice.2017.08.042] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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26
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Mei QX, Lai L, Zhou ZQ, Mei P, Ren ZH, Zheng YC, Liu Y. Impact of multiple quaternary ammonium salts on dynamic properties of BSA adsorption layer at different pH values. SOFT MATTER 2017; 13:7273-7282. [PMID: 28990032 DOI: 10.1039/c7sm01607g] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
The interaction mechanism of multiple quaternary ammonium salts (MQAS) with bovine serum albumin (BSA) was examined by the fluorescence quenching method and circular dichroism (CD) spectra. Moreover, the effects of MQAS on the dynamic properties of BSA adsorption layers at different pH values were investigated using dilational interfacial rheology. Results show that the quenching constants increase with an increase in pH values and decrease with an increase in the experiment temperature at pH 5.3. The quenching mechanism is static quenching, and the electrostatic force dominates the interaction between MQAS and BSA at pH 5.3. Due to three positive head groups, MQAS can significantly affect the dynamic interfacial activity of BSA molecules at a relatively low concentration. At pH 4.3, the electrostatic repulsion is unfavorable for the formation of MQAS/BSA complexes. Consequently, MQAS molecules will replace BSA molecules from the interface by competitive adsorption. At the pH value above the isoelectric point of BSA, the electrostatic attraction is better for the formation of MQAS/BSA complexes, which exhibit a rapid adsorption rate and an enhanced interfacial activity. Moreover, the kinetic dependencies of interfacial dilational elasticity for the MQAS/BSA mixtures become nonmonotonous. The appearance of the maximum interfacial elasticity values can be attributed to the formation of tails and loops, which suggests that the addition of MQAS destroys the secondary and tertiary structure of protein in the bulk phase. In addition, the effects of MQAS on the secondary structure of protein were demonstrated by CD spectra.
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Affiliation(s)
- Qi-Xiang Mei
- College of Chemistry and Environmental Engineering, Yangtze University, Jingzhou 434023, P. R. China.
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Kalogianni EP, Sklaviadis L, Nika S, Theochari I, Dimitreli G, Georgiou D, Papadimitriou V. Effect of oleic acid on the properties of protein adsorbed layers at water/oil interfaces: An EPR study combined with dynamic interfacial tension measurements. Colloids Surf B Biointerfaces 2017; 158:498-506. [DOI: 10.1016/j.colsurfb.2017.07.022] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2017] [Revised: 07/05/2017] [Accepted: 07/07/2017] [Indexed: 10/19/2022]
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28
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Noskov BA, Krycki MM. Formation of protein/surfactant adsorption layer as studied by dilational surface rheology. Adv Colloid Interface Sci 2017; 247:81-99. [PMID: 28716186 DOI: 10.1016/j.cis.2017.07.003] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2017] [Revised: 06/19/2017] [Accepted: 07/02/2017] [Indexed: 12/25/2022]
Abstract
The review discusses the mechanism of formation of protein/surfactant adsorption layers at the liquid - gas interface. The complexes of globular proteins usually preserve their compact structure a low surfactant concentrations. Therefore a simple kinetic model of the adsorption of charged compact nanoparticles is discussed first and compared with experimental data. The increase of surfactant concentrations results in various conformational transitions in the surface layer. One can obtain information on the changes of the adsorption layer structure using the dilational surface rheology. The kinetic dependencies of the dynamic surface elasticity are strongly different for the adsorption of unfolded macromolecules and compact globules, and have local maxima in the former case corresponding to different steps of the adsorption. These distinctions allow tracing the changes of the tertiary structure of protein/surfactant complexes in the surface layer. The adsorption from mixed solutions of ionic surfactants with β-casein, β-lactoglobulin, bovine serum albumin and myoglobin is discussed with some details.
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Fainerman V, Aksenenko E, Lylyk S, Tarasevich Y, Miller R. Adsorption of surfactants and proteins at the interface between their aqueous solution drop and air saturated by hexane vapour. Colloids Surf A Physicochem Eng Asp 2017. [DOI: 10.1016/j.colsurfa.2016.08.053] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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30
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Zhang X, Haque ZZ. Generation and stabilization of whey-based monodisperse nanoemulsions using ultra-high-pressure homogenization and small amphipathic co-emulsifier combinations. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2015; 63:10070-10077. [PMID: 26485502 DOI: 10.1021/acs.jafc.5b03889] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Ultra-high-pressure homogenization (UHPH) was used to generate monodisperse stable peanut oil nanoemulsions within a desired nanosize range (<100 nm) (DNR) stabilized using combinations of whey protein concentrate (WPC), sodium dodecyl sulfate, Triton X-100 (X100), and zwitterionic sulfobetaine-based surfactants differing in hydrophobicity. For WPC [2.0% (w/v)], the dispersed-phase fractions (φ) of 0.05 and 210 MPa significantly reduced the mean globule size (dvs) but the grouped frequency distribution was bimodal and larger than that of DNR. Addition of co-emulsifier sulfobetaine 3-10 (SB3-10) [7.5% (w/w) WPC] gave particles within DNR (dvs of 73 nm) though still in a bimodal distribution. Circular dichroism prior to UHPH showed little disruption of the secondary structure of proteins in WPC by SB3-10, whereas X100 obliterated it. A WPC/SB3-10 mixture retained some periodic structure even when mixed with X100 [10% (w/w) WPC] and remarkably gave a narrow monomodal distribution within DNR with the highest stability reflected by a lack of creaming after storage for 30 days (22 °C).
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Affiliation(s)
- Xue Zhang
- Department of Food Science, Nutrition and Health Promotion, Mississippi State University , Mississippi State, Mississippi 39762, United States
| | - Zahur Z Haque
- Department of Food Science, Nutrition and Health Promotion, Mississippi State University , Mississippi State, Mississippi 39762, United States
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