Flow properties of caseinomacropeptide aqueous solutions: Effect of particle size distribution, concentration, pH and temperature
The purpose of this research was to evaluate the influence of particle size distribution, pH (5.0–9.0), concentration (1–15 g/100 g.) and temperature (5–60 °C) on the steady shear flow properties of caseinomacropeptide (CMP) aqueous solutions. These measurements were carried out by using a controlle...
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| Acceso en línea: | http://hdl.handle.net/20.500.12110/paper_00236438_v93_n_p243_Loria |
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todo:paper_00236438_v93_n_p243_Loria2023-10-03T14:34:25Z Flow properties of caseinomacropeptide aqueous solutions: Effect of particle size distribution, concentration, pH and temperature Loria, K.G. Aragón, J.C. Torregiani, S.M. Pilosof, A.M.R. Farías, M.E. Beverage Caseinomacropeptide Flow behaviour Particle size distribution Rheology Activation energy Beverages Light transmission Non Newtonian flow Particle size Particle size analysis Peptides Rheology Shear thinning Size distribution Solutions Viscosity Caseinomacropeptide Concentration dependence Controlled-stress rheometers Flow behaviours Herschel-Bulkley model Overlap concentration Temperature dependent Viscosity increase Shear flow The purpose of this research was to evaluate the influence of particle size distribution, pH (5.0–9.0), concentration (1–15 g/100 g.) and temperature (5–60 °C) on the steady shear flow properties of caseinomacropeptide (CMP) aqueous solutions. These measurements were carried out by using a controlled stress rheometer. Flow curves were satisfactorily fitted by the Herschel-Bulkley model. CMP solutions exhibited Newtonian flow dependence, particularly at pH values 5.0–6.0. Non-Newtonian shear thinning behaviour was observed at pH 7.0–9.0. The concentration dependence on viscosity showed two different regimes of viscosity increase (dilute and concentrated). The overlap concentration was 8 g/100 g. The temperature dependent behaviour of CMP solutions fitted to the Arrhenius model regardless pH and concentration, and the calculated activation energy was 20 kJ/mol. The flow behaviour of CMP is explained in terms of peptide-peptide and peptide-water interactions. Based on these results, CMP molecules would form spontaneously micelles at pH > 4.5 in ultrapure water. © 2018 Elsevier Ltd JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_00236438_v93_n_p243_Loria |
| institution |
Universidad de Buenos Aires |
| institution_str |
I-28 |
| repository_str |
R-134 |
| collection |
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) |
| topic |
Beverage Caseinomacropeptide Flow behaviour Particle size distribution Rheology Activation energy Beverages Light transmission Non Newtonian flow Particle size Particle size analysis Peptides Rheology Shear thinning Size distribution Solutions Viscosity Caseinomacropeptide Concentration dependence Controlled-stress rheometers Flow behaviours Herschel-Bulkley model Overlap concentration Temperature dependent Viscosity increase Shear flow |
| spellingShingle |
Beverage Caseinomacropeptide Flow behaviour Particle size distribution Rheology Activation energy Beverages Light transmission Non Newtonian flow Particle size Particle size analysis Peptides Rheology Shear thinning Size distribution Solutions Viscosity Caseinomacropeptide Concentration dependence Controlled-stress rheometers Flow behaviours Herschel-Bulkley model Overlap concentration Temperature dependent Viscosity increase Shear flow Loria, K.G. Aragón, J.C. Torregiani, S.M. Pilosof, A.M.R. Farías, M.E. Flow properties of caseinomacropeptide aqueous solutions: Effect of particle size distribution, concentration, pH and temperature |
| topic_facet |
Beverage Caseinomacropeptide Flow behaviour Particle size distribution Rheology Activation energy Beverages Light transmission Non Newtonian flow Particle size Particle size analysis Peptides Rheology Shear thinning Size distribution Solutions Viscosity Caseinomacropeptide Concentration dependence Controlled-stress rheometers Flow behaviours Herschel-Bulkley model Overlap concentration Temperature dependent Viscosity increase Shear flow |
| description |
The purpose of this research was to evaluate the influence of particle size distribution, pH (5.0–9.0), concentration (1–15 g/100 g.) and temperature (5–60 °C) on the steady shear flow properties of caseinomacropeptide (CMP) aqueous solutions. These measurements were carried out by using a controlled stress rheometer. Flow curves were satisfactorily fitted by the Herschel-Bulkley model. CMP solutions exhibited Newtonian flow dependence, particularly at pH values 5.0–6.0. Non-Newtonian shear thinning behaviour was observed at pH 7.0–9.0. The concentration dependence on viscosity showed two different regimes of viscosity increase (dilute and concentrated). The overlap concentration was 8 g/100 g. The temperature dependent behaviour of CMP solutions fitted to the Arrhenius model regardless pH and concentration, and the calculated activation energy was 20 kJ/mol. The flow behaviour of CMP is explained in terms of peptide-peptide and peptide-water interactions. Based on these results, CMP molecules would form spontaneously micelles at pH > 4.5 in ultrapure water. © 2018 Elsevier Ltd |
| format |
JOUR |
| author |
Loria, K.G. Aragón, J.C. Torregiani, S.M. Pilosof, A.M.R. Farías, M.E. |
| author_facet |
Loria, K.G. Aragón, J.C. Torregiani, S.M. Pilosof, A.M.R. Farías, M.E. |
| author_sort |
Loria, K.G. |
| title |
Flow properties of caseinomacropeptide aqueous solutions: Effect of particle size distribution, concentration, pH and temperature |
| title_short |
Flow properties of caseinomacropeptide aqueous solutions: Effect of particle size distribution, concentration, pH and temperature |
| title_full |
Flow properties of caseinomacropeptide aqueous solutions: Effect of particle size distribution, concentration, pH and temperature |
| title_fullStr |
Flow properties of caseinomacropeptide aqueous solutions: Effect of particle size distribution, concentration, pH and temperature |
| title_full_unstemmed |
Flow properties of caseinomacropeptide aqueous solutions: Effect of particle size distribution, concentration, pH and temperature |
| title_sort |
flow properties of caseinomacropeptide aqueous solutions: effect of particle size distribution, concentration, ph and temperature |
| url |
http://hdl.handle.net/20.500.12110/paper_00236438_v93_n_p243_Loria |
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