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Abstract:

Water activity (a(w)) of Amaranthus cruentus were measured at 35, 45, and 65°C at different moisture contents by means of an electronic water activity meter. Experimental curves were fitted to one three-parameter equation (GAB equation). The equilibrium values and temperature shifts were modeled with a three-parameter equation in the approximate a(w) range of 0.03-0.88. An analytical expression to calculate the isosteric heat of sorption and its moisture content dependence was used, and the results were compared with the isosteric heat calculated from the experimental equilibrium data by means of the Clausius-Clapeyron equation.

Registro:

Documento: Artículo
Título:Measuring and modeling grain sorption equilibria of amaranth grains
Autor:Pollio, M.L.; Tolaba, M.P.; Suárez, C.
Filiación:Departamento de Industrias, Universidad de Buenos Aires, Ciudad Universitaria, 1428 - Buenos Aires, Argentina
Palabras clave:Amaranthus; Amaranthus caudatus; Amaranthus cruentus
Año:1998
Volumen:75
Número:3
Página de inicio:297
Página de fin:300
DOI: http://dx.doi.org/10.1094/CCHEM.1998.75.3.297
Título revista:Cereal Chemistry
Título revista abreviado:Cereal Chem.
ISSN:00090352
CODEN:CECHA
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00090352_v75_n3_p297_Pollio

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Citas:

---------- APA ----------
Pollio, M.L., Tolaba, M.P. & Suárez, C. (1998) . Measuring and modeling grain sorption equilibria of amaranth grains. Cereal Chemistry, 75(3), 297-300.
http://dx.doi.org/10.1094/CCHEM.1998.75.3.297
---------- CHICAGO ----------
Pollio, M.L., Tolaba, M.P., Suárez, C. "Measuring and modeling grain sorption equilibria of amaranth grains" . Cereal Chemistry 75, no. 3 (1998) : 297-300.
http://dx.doi.org/10.1094/CCHEM.1998.75.3.297
---------- MLA ----------
Pollio, M.L., Tolaba, M.P., Suárez, C. "Measuring and modeling grain sorption equilibria of amaranth grains" . Cereal Chemistry, vol. 75, no. 3, 1998, pp. 297-300.
http://dx.doi.org/10.1094/CCHEM.1998.75.3.297
---------- VANCOUVER ----------
Pollio, M.L., Tolaba, M.P., Suárez, C. Measuring and modeling grain sorption equilibria of amaranth grains. Cereal Chem. 1998;75(3):297-300.
http://dx.doi.org/10.1094/CCHEM.1998.75.3.297