Modeling yerba mate aqueous extraction kinetics: Influence of temperature
A new kinetics model, a combined second-order-diffusional kinetics model, was developed and compared with a pseudo first-order model for the aqueous extraction of total water soluble solids (WSS) from yerba mate leaves. The model that coupled two mechanisms fits the experimental data more satisfacto...
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paper:paper_02608774_v97_n4_p471_Linares2023-06-08T15:22:42Z Modeling yerba mate aqueous extraction kinetics: Influence of temperature Linares, Andrés Ramón Resnik, Silvia Liliana Activation energy Aqueous extraction Kinetics modeling Yerba mate Aqueous extraction Concentration of Different mechanisms Equilibrium concentration Experimental data Extraction yield First-order models Kinetics models Kinetics parameter Second orders Temperature range Watersoluble Yerba mate leaves Activation energy Solvent extraction Croton ovalifolius Ilex paraguariensis A new kinetics model, a combined second-order-diffusional kinetics model, was developed and compared with a pseudo first-order model for the aqueous extraction of total water soluble solids (WSS) from yerba mate leaves. The model that coupled two mechanisms fits the experimental data more satisfactorily (E% = 1.2 to 2.2) than the pseudo first-order model (E% = 3.9 to 4.4). The second-order-diffusional model could explain the first seconds of the WSS extraction and how the different mechanisms contributed to the concentration of the extract. Temperature influenced the kinetics parameters, but the equilibrium concentrations and the extraction yield were not significantly influenced in a temperature range between 40 and 70 °C. © 2009 Elsevier Ltd. All rights reserved. Fil:Linares, A.R. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Resnik, S.L. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. 2010 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_02608774_v97_n4_p471_Linares http://hdl.handle.net/20.500.12110/paper_02608774_v97_n4_p471_Linares |
| institution |
Universidad de Buenos Aires |
| institution_str |
I-28 |
| repository_str |
R-134 |
| collection |
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) |
| topic |
Activation energy Aqueous extraction Kinetics modeling Yerba mate Aqueous extraction Concentration of Different mechanisms Equilibrium concentration Experimental data Extraction yield First-order models Kinetics models Kinetics parameter Second orders Temperature range Watersoluble Yerba mate leaves Activation energy Solvent extraction Croton ovalifolius Ilex paraguariensis |
| spellingShingle |
Activation energy Aqueous extraction Kinetics modeling Yerba mate Aqueous extraction Concentration of Different mechanisms Equilibrium concentration Experimental data Extraction yield First-order models Kinetics models Kinetics parameter Second orders Temperature range Watersoluble Yerba mate leaves Activation energy Solvent extraction Croton ovalifolius Ilex paraguariensis Linares, Andrés Ramón Resnik, Silvia Liliana Modeling yerba mate aqueous extraction kinetics: Influence of temperature |
| topic_facet |
Activation energy Aqueous extraction Kinetics modeling Yerba mate Aqueous extraction Concentration of Different mechanisms Equilibrium concentration Experimental data Extraction yield First-order models Kinetics models Kinetics parameter Second orders Temperature range Watersoluble Yerba mate leaves Activation energy Solvent extraction Croton ovalifolius Ilex paraguariensis |
| description |
A new kinetics model, a combined second-order-diffusional kinetics model, was developed and compared with a pseudo first-order model for the aqueous extraction of total water soluble solids (WSS) from yerba mate leaves. The model that coupled two mechanisms fits the experimental data more satisfactorily (E% = 1.2 to 2.2) than the pseudo first-order model (E% = 3.9 to 4.4). The second-order-diffusional model could explain the first seconds of the WSS extraction and how the different mechanisms contributed to the concentration of the extract. Temperature influenced the kinetics parameters, but the equilibrium concentrations and the extraction yield were not significantly influenced in a temperature range between 40 and 70 °C. © 2009 Elsevier Ltd. All rights reserved. |
| author |
Linares, Andrés Ramón Resnik, Silvia Liliana |
| author_facet |
Linares, Andrés Ramón Resnik, Silvia Liliana |
| author_sort |
Linares, Andrés Ramón |
| title |
Modeling yerba mate aqueous extraction kinetics: Influence of temperature |
| title_short |
Modeling yerba mate aqueous extraction kinetics: Influence of temperature |
| title_full |
Modeling yerba mate aqueous extraction kinetics: Influence of temperature |
| title_fullStr |
Modeling yerba mate aqueous extraction kinetics: Influence of temperature |
| title_full_unstemmed |
Modeling yerba mate aqueous extraction kinetics: Influence of temperature |
| title_sort |
modeling yerba mate aqueous extraction kinetics: influence of temperature |
| publishDate |
2010 |
| url |
https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_02608774_v97_n4_p471_Linares http://hdl.handle.net/20.500.12110/paper_02608774_v97_n4_p471_Linares |
| work_keys_str_mv |
AT linaresandresramon modelingyerbamateaqueousextractionkineticsinfluenceoftemperature AT resniksilvialiliana modelingyerbamateaqueousextractionkineticsinfluenceoftemperature |
| _version_ |
1768546626765324288 |