Empirical model for water uptake and hydration rate of food powders by sorption and Baumann methods
The empirical model q = Q · t/B + t, where q is the amount of water taken up at time t was useful to describe water uptake of several food powders determined either by the Baumann or the sorption isotherm method at 75.6 and 100% RH. The equilibrium values (Q) and the specific rate constant (K) deriv...
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1996
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Acceso en línea: | https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00221147_v61_n2_p407_Elizalde http://hdl.handle.net/20.500.12110/paper_00221147_v61_n2_p407_Elizalde |
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paper:paper_00221147_v61_n2_p407_Elizalde2023-06-08T14:46:16Z Empirical model for water uptake and hydration rate of food powders by sorption and Baumann methods Gelatin Hydration rate Sorption isotherm Starch Wheat The empirical model q = Q · t/B + t, where q is the amount of water taken up at time t was useful to describe water uptake of several food powders determined either by the Baumann or the sorption isotherm method at 75.6 and 100% RH. The equilibrium values (Q) and the specific rate constant (K) derived from this model as (QB)-1 could be used to characterize food materials for hydration capacity and rate. Large differences were observed in Q values between methods and between food powders. The Baumann Q values and sorption isotherm Q values at 100% RH ranked similarly water takeup of food powders (R = 0.97, p < 0.001). Baumann K values and sorption isotherm K values at 100% RH also correlated highly. However, little differences were observed among the K and Q values of different food powders determined by the sorption isotherm method at 75.6% RH. 1996 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00221147_v61_n2_p407_Elizalde http://hdl.handle.net/20.500.12110/paper_00221147_v61_n2_p407_Elizalde |
institution |
Universidad de Buenos Aires |
institution_str |
I-28 |
repository_str |
R-134 |
collection |
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) |
topic |
Gelatin Hydration rate Sorption isotherm Starch Wheat |
spellingShingle |
Gelatin Hydration rate Sorption isotherm Starch Wheat Empirical model for water uptake and hydration rate of food powders by sorption and Baumann methods |
topic_facet |
Gelatin Hydration rate Sorption isotherm Starch Wheat |
description |
The empirical model q = Q · t/B + t, where q is the amount of water taken up at time t was useful to describe water uptake of several food powders determined either by the Baumann or the sorption isotherm method at 75.6 and 100% RH. The equilibrium values (Q) and the specific rate constant (K) derived from this model as (QB)-1 could be used to characterize food materials for hydration capacity and rate. Large differences were observed in Q values between methods and between food powders. The Baumann Q values and sorption isotherm Q values at 100% RH ranked similarly water takeup of food powders (R = 0.97, p < 0.001). Baumann K values and sorption isotherm K values at 100% RH also correlated highly. However, little differences were observed among the K and Q values of different food powders determined by the sorption isotherm method at 75.6% RH. |
title |
Empirical model for water uptake and hydration rate of food powders by sorption and Baumann methods |
title_short |
Empirical model for water uptake and hydration rate of food powders by sorption and Baumann methods |
title_full |
Empirical model for water uptake and hydration rate of food powders by sorption and Baumann methods |
title_fullStr |
Empirical model for water uptake and hydration rate of food powders by sorption and Baumann methods |
title_full_unstemmed |
Empirical model for water uptake and hydration rate of food powders by sorption and Baumann methods |
title_sort |
empirical model for water uptake and hydration rate of food powders by sorption and baumann methods |
publishDate |
1996 |
url |
https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00221147_v61_n2_p407_Elizalde http://hdl.handle.net/20.500.12110/paper_00221147_v61_n2_p407_Elizalde |
_version_ |
1768542021147951104 |