Kinetics of adsorption of whey proteins and hydroxypropyl-methyl-cellulose mixtures at the air-water interface

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The aim of this research is to quantify the competitive adsorption of a whey protein concentrate (WPC) and hydroxypropyl-methyl-cellulose (HPMC so called E4M, E50LV and F4M) at the air-water interface by means of dynamic surface tensiometry and Brewster angle microscopy (BAM). These biopolymers are...

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Detalles Bibliográficos
Autor principal: Pérez, O.E
Otros Autores: Sánchez, C.C, Pilosof, A.M.R, Rodríguez Patino, J.M
Formato: Capítulo de libro
Lenguaje:Inglés
Publicado: 2009
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PH
Acceso en línea:Registro en Scopus
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Biblioteca Central Dr. Luis F. Leloir (FCEN) de Universidad de Buenos Aires
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024 7 |2 scopus  |a 2-s2.0-67549114845 
024 7 |2 cas  |a hydroxypropylmethylcellulose, 9004-65-3; water, 7732-18-5; Methylcellulose, 9004-67-5; Milk Proteins; Water, 7732-18-5; hypromellose, 8063-82-9; whey protein 
040 |a Scopus  |b spa  |c AR-BaUEN  |d AR-BaUEN 
030 |a JCISA 
100 1 |a Pérez, O.E. 
245 1 0 |a Kinetics of adsorption of whey proteins and hydroxypropyl-methyl-cellulose mixtures at the air-water interface 
260 |c 2009 
270 1 0 |m Rodríguez Patino, J.M.; Departamento de Ingeniería Química, Facultad de Química, Universidad de Sevilla, Prof. Garcia Gonzalez n 1, 41012 Sevilla, Spain; email: jmrodri@us.es 
506 |2 openaire  |e Política editorial 
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504 |a Baeza, R.I., Carrera, C., Pilosof, A.M.R., Rodríguez Patino, J.M., (2005) Food Hydrocolloids, 19, p. 239 
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520 3 |a The aim of this research is to quantify the competitive adsorption of a whey protein concentrate (WPC) and hydroxypropyl-methyl-cellulose (HPMC so called E4M, E50LV and F4M) at the air-water interface by means of dynamic surface tensiometry and Brewster angle microscopy (BAM). These biopolymers are often used together in many food applications. The concentration of both protein and HPMC, and the WPC/HPMC ratio in the aqueous bulk phase were variables, while pH (7), the ionic strength (0.05 M) and temperature (20 °C) were kept constant. The differences observed between mixed systems were in accordance with the relative bulk concentration of these biopolymers (CHPMC and CWPC) and the molecular structure of HPMC. At short adsorption times, the results show that under conditions where both WPC and HPMC could saturate the air-water interface on their own or when CHPMC ≥ CWPC, the polysaccharide dominates the surface. At concentrations where none of the biopolymers was able to saturate the interface, a synergistic behavior was observed for HPMC with lower surface activity (E50LV and F4M), while a competitive adsorption was observed for E4M (the HPMC with the highest surface activity). At long-term adsorption the rate of penetration controls the adsorption of mixed components. The results reflect complex competitive/synergistic phenomena under conditions of thermodynamic compatibility or in the presence of a "depletion mechanism". Finally, the order in which the different components reach the interface will influence the surface composition and the film properties. © 2009 Elsevier Inc. All rights reserved.  |l eng 
536 |a Detalles de la financiación: Universidad de Buenos Aires 
536 |a Detalles de la financiación: Consejo Nacional de Investigaciones Científicas y Técnicas 
536 |a Detalles de la financiación: Comisión Interministerial de Ciencia y Tecnología, AGL2007-60045, PO6-AGR-01535 
536 |a Detalles de la financiación: Agencia Nacional de Promoción Científica y Tecnológica 
536 |a Detalles de la financiación: CYTED Ciencia y Tecnología para el Desarrollo 
536 |a Detalles de la financiación: This research was supported by CYTED through project A.1.2. Universidad de Buenos Aires, Agencia Nacional de Promoción Cientı´fica y Tecnológica and Consejo Nacional de Investigaciones Cientı´ficas y Técnicas de la República Argentina. CICYT (Spain) through Grant AGL2007-60045, and Consejerı´a de Educación y Ciencia, Junta de Andalucı´a (Spain), through Grant PO6-AGR-01535. 
593 |a Departamento de Industrias, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Ciudad Universitaria, 1428 Buenos Aires, Argentina 
593 |a Departamento de Ingeniería Química, Facultad de Química, Universidad de Sevilla, Prof. Garcia Gonzalez n 1, 41012 Sevilla, Spain 
690 1 0 |a ADSORPTION 
690 1 0 |a AIR-WATER INTERFACE 
690 1 0 |a COMPETITIVE ADSORPTION 
690 1 0 |a HYDROXYPROPYL-METHYL-CELLULOSE 
690 1 0 |a MILK PROTEIN 
690 1 0 |a POLYSACCHARIDE 
690 1 0 |a SURFACE PRESSURE 
690 1 0 |a WHEY PROTEIN CONCENTRATE 
690 1 0 |a AIR-WATER INTERFACE 
690 1 0 |a COMPETITIVE ADSORPTION 
690 1 0 |a HYDROXYPROPYL-METHYL-CELLULOSE 
690 1 0 |a MILK PROTEIN 
690 1 0 |a SURFACE PRESSURE 
690 1 0 |a WHEY PROTEIN CONCENTRATE 
690 1 0 |a ADSORPTION 
690 1 0 |a AIR 
690 1 0 |a BIOMOLECULES 
690 1 0 |a BIOPOLYMERS 
690 1 0 |a CELLULOSE 
690 1 0 |a DEWATERING 
690 1 0 |a IONIC STRENGTH 
690 1 0 |a IONIZATION OF LIQUIDS 
690 1 0 |a POLYSACCHARIDES 
690 1 0 |a PHASE INTERFACES 
690 1 0 |a BIOPOLYMER 
690 1 0 |a HYDROXYPROPYLMETHYLCELLULOSE 
690 1 0 |a MILK PROTEIN 
690 1 0 |a POLYSACCHARIDE 
690 1 0 |a WATER 
690 1 0 |a ADSORPTION KINETICS 
690 1 0 |a AQUEOUS SOLUTION 
690 1 0 |a ARTICLE 
690 1 0 |a BREWSTER ANGLE MICROSCOPY 
690 1 0 |a CHEMICAL COMPOSITION 
690 1 0 |a CHEMICAL STRUCTURE 
690 1 0 |a CONCENTRATION (PARAMETERS) 
690 1 0 |a CONTROLLED STUDY 
690 1 0 |a FOOD QUALITY 
690 1 0 |a IONIC STRENGTH 
690 1 0 |a PRIORITY JOURNAL 
690 1 0 |a QUANTITATIVE ANALYSIS 
690 1 0 |a SURFACE TENSION 
690 1 0 |a TEMPERATURE 
690 1 0 |a THERMODYNAMICS 
690 1 0 |a ADSORPTION 
690 1 0 |a AIR 
690 1 0 |a KINETICS 
690 1 0 |a METHYLCELLULOSE 
690 1 0 |a MILK PROTEINS 
690 1 0 |a SURFACE PROPERTIES 
690 1 0 |a WATER 
690 1 0 |a ADSORPTION 
690 1 0 |a AIR 
690 1 0 |a CELLULOSE 
690 1 0 |a DRAINAGE 
690 1 0 |a IONIZATION 
690 1 0 |a LIQUIDS 
690 1 0 |a MILK 
690 1 0 |a POLYSACCHARIDES 
690 1 0 |a PROTEINS 
690 1 0 |a WATER 
650 1 7 |2 spines  |a PH 
700 1 |a Sánchez, C.C. 
700 1 |a Pilosof, A.M.R. 
700 1 |a Rodríguez Patino, J.M. 
773 0 |d 2009  |g v. 336  |h pp. 485-496  |k n. 2  |p J. Colloid Interface Sci.  |x 00219797  |w (AR-BaUEN)CENRE-15  |t Journal of Colloid and Interface Science 
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856 4 0 |u https://doi.org/10.1016/j.jcis.2009.04.011  |y DOI 
856 4 0 |u https://hdl.handle.net/20.500.12110/paper_00219797_v336_n2_p485_Perez  |y Handle 
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