Interactions in the aqueous phase and adsorption at the air-water interface of caseinoglycomacropeptide (GMP) and β-lactoglobulin mixed systems
The aim of this work was to study the interactions and adsorption of caseinoglycomacropeptide (GMP) and GMP:β-lactoglobulin (β-lg) mixed system in the aqueous phase and at the air-water interface. The existence of associative interactions between GMP and β-lg in the aqueous phase was investigated by...
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todo:paper_09277765_v68_n1_p39_Martinez2023-10-03T15:47:14Z Interactions in the aqueous phase and adsorption at the air-water interface of caseinoglycomacropeptide (GMP) and β-lactoglobulin mixed systems Martinez, M.J. Sánchez, C.C. Patino, J.M.R. Pilosof, A.M.R. Competitive adsorption Dynamic light scattering Interactions Interface Whey proteins Aqueous phase Associative interactions Competitive adsorption Dilatational properties Film-forming Interactions Interface Interfacial films Lactoglobulin Mixed systems Rheological properties Static and dynamics Surface activities Surface pressure isotherms Tensiometry Water interfaces Whey proteins Adsorption Air Concentration (process) Dewatering Differential scanning calorimetry Dynamic light scattering Electric load shedding Electrophoresis Flow interactions Laser interferometry Light scattering Refraction Rheology Surface properties Phase interfaces beta lactoglobulin caseinoglycomacropeptide glycopeptide unclassified drug adsorption air water interface aqueous solution article concentration response film flow kinetics isotherm pressure priority journal surface pressure surface property Adsorption Air Calorimetry, Differential Scanning Electrophoresis, Polyacrylamide Gel Fluorometry Lactoglobulins Peptide Fragments Surface Properties Water The aim of this work was to study the interactions and adsorption of caseinoglycomacropeptide (GMP) and GMP:β-lactoglobulin (β-lg) mixed system in the aqueous phase and at the air-water interface. The existence of associative interactions between GMP and β-lg in the aqueous phase was investigated by dynamic light scattering, differential scanning calorimetry (DSC), fluorometry and native PAGE-electrophoresis. The surface pressure isotherm and the static and dynamic surface pressure were determined by tensiometry and surface dilatational properties. The results showed that GMP presented higher surface activity than β-lg at a concentration of 4% wt but β-lg showed higher film forming ability. In the mixed systems β-lg dominated the static and dynamic surface pressure and the rheological properties of interfacial films suggesting that β-lg hinders GMP adsorption because, in simple competition, GMP should dominate because of its higher surface activity. The surface predominance of β-lg can be attributed to binding of GMP to β-lg in the aqueous phase that prevents GMP adsorption on its own. © 2008 Elsevier B.V. All rights reserved. Fil:Martinez, M.J. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Pilosof, A.M.R. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_09277765_v68_n1_p39_Martinez |
| institution |
Universidad de Buenos Aires |
| institution_str |
I-28 |
| repository_str |
R-134 |
| collection |
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) |
| topic |
Competitive adsorption Dynamic light scattering Interactions Interface Whey proteins Aqueous phase Associative interactions Competitive adsorption Dilatational properties Film-forming Interactions Interface Interfacial films Lactoglobulin Mixed systems Rheological properties Static and dynamics Surface activities Surface pressure isotherms Tensiometry Water interfaces Whey proteins Adsorption Air Concentration (process) Dewatering Differential scanning calorimetry Dynamic light scattering Electric load shedding Electrophoresis Flow interactions Laser interferometry Light scattering Refraction Rheology Surface properties Phase interfaces beta lactoglobulin caseinoglycomacropeptide glycopeptide unclassified drug adsorption air water interface aqueous solution article concentration response film flow kinetics isotherm pressure priority journal surface pressure surface property Adsorption Air Calorimetry, Differential Scanning Electrophoresis, Polyacrylamide Gel Fluorometry Lactoglobulins Peptide Fragments Surface Properties Water |
| spellingShingle |
Competitive adsorption Dynamic light scattering Interactions Interface Whey proteins Aqueous phase Associative interactions Competitive adsorption Dilatational properties Film-forming Interactions Interface Interfacial films Lactoglobulin Mixed systems Rheological properties Static and dynamics Surface activities Surface pressure isotherms Tensiometry Water interfaces Whey proteins Adsorption Air Concentration (process) Dewatering Differential scanning calorimetry Dynamic light scattering Electric load shedding Electrophoresis Flow interactions Laser interferometry Light scattering Refraction Rheology Surface properties Phase interfaces beta lactoglobulin caseinoglycomacropeptide glycopeptide unclassified drug adsorption air water interface aqueous solution article concentration response film flow kinetics isotherm pressure priority journal surface pressure surface property Adsorption Air Calorimetry, Differential Scanning Electrophoresis, Polyacrylamide Gel Fluorometry Lactoglobulins Peptide Fragments Surface Properties Water Martinez, M.J. Sánchez, C.C. Patino, J.M.R. Pilosof, A.M.R. Interactions in the aqueous phase and adsorption at the air-water interface of caseinoglycomacropeptide (GMP) and β-lactoglobulin mixed systems |
| topic_facet |
Competitive adsorption Dynamic light scattering Interactions Interface Whey proteins Aqueous phase Associative interactions Competitive adsorption Dilatational properties Film-forming Interactions Interface Interfacial films Lactoglobulin Mixed systems Rheological properties Static and dynamics Surface activities Surface pressure isotherms Tensiometry Water interfaces Whey proteins Adsorption Air Concentration (process) Dewatering Differential scanning calorimetry Dynamic light scattering Electric load shedding Electrophoresis Flow interactions Laser interferometry Light scattering Refraction Rheology Surface properties Phase interfaces beta lactoglobulin caseinoglycomacropeptide glycopeptide unclassified drug adsorption air water interface aqueous solution article concentration response film flow kinetics isotherm pressure priority journal surface pressure surface property Adsorption Air Calorimetry, Differential Scanning Electrophoresis, Polyacrylamide Gel Fluorometry Lactoglobulins Peptide Fragments Surface Properties Water |
| description |
The aim of this work was to study the interactions and adsorption of caseinoglycomacropeptide (GMP) and GMP:β-lactoglobulin (β-lg) mixed system in the aqueous phase and at the air-water interface. The existence of associative interactions between GMP and β-lg in the aqueous phase was investigated by dynamic light scattering, differential scanning calorimetry (DSC), fluorometry and native PAGE-electrophoresis. The surface pressure isotherm and the static and dynamic surface pressure were determined by tensiometry and surface dilatational properties. The results showed that GMP presented higher surface activity than β-lg at a concentration of 4% wt but β-lg showed higher film forming ability. In the mixed systems β-lg dominated the static and dynamic surface pressure and the rheological properties of interfacial films suggesting that β-lg hinders GMP adsorption because, in simple competition, GMP should dominate because of its higher surface activity. The surface predominance of β-lg can be attributed to binding of GMP to β-lg in the aqueous phase that prevents GMP adsorption on its own. © 2008 Elsevier B.V. All rights reserved. |
| format |
JOUR |
| author |
Martinez, M.J. Sánchez, C.C. Patino, J.M.R. Pilosof, A.M.R. |
| author_facet |
Martinez, M.J. Sánchez, C.C. Patino, J.M.R. Pilosof, A.M.R. |
| author_sort |
Martinez, M.J. |
| title |
Interactions in the aqueous phase and adsorption at the air-water interface of caseinoglycomacropeptide (GMP) and β-lactoglobulin mixed systems |
| title_short |
Interactions in the aqueous phase and adsorption at the air-water interface of caseinoglycomacropeptide (GMP) and β-lactoglobulin mixed systems |
| title_full |
Interactions in the aqueous phase and adsorption at the air-water interface of caseinoglycomacropeptide (GMP) and β-lactoglobulin mixed systems |
| title_fullStr |
Interactions in the aqueous phase and adsorption at the air-water interface of caseinoglycomacropeptide (GMP) and β-lactoglobulin mixed systems |
| title_full_unstemmed |
Interactions in the aqueous phase and adsorption at the air-water interface of caseinoglycomacropeptide (GMP) and β-lactoglobulin mixed systems |
| title_sort |
interactions in the aqueous phase and adsorption at the air-water interface of caseinoglycomacropeptide (gmp) and β-lactoglobulin mixed systems |
| url |
http://hdl.handle.net/20.500.12110/paper_09277765_v68_n1_p39_Martinez |
| work_keys_str_mv |
AT martinezmj interactionsintheaqueousphaseandadsorptionattheairwaterinterfaceofcaseinoglycomacropeptidegmpandblactoglobulinmixedsystems AT sanchezcc interactionsintheaqueousphaseandadsorptionattheairwaterinterfaceofcaseinoglycomacropeptidegmpandblactoglobulinmixedsystems AT patinojmr interactionsintheaqueousphaseandadsorptionattheairwaterinterfaceofcaseinoglycomacropeptidegmpandblactoglobulinmixedsystems AT pilosofamr interactionsintheaqueousphaseandadsorptionattheairwaterinterfaceofcaseinoglycomacropeptidegmpandblactoglobulinmixedsystems |
| _version_ |
1782026995522076672 |