Thermal evaporation: Representation of rise in boiling point of grapefruit juice

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Data

2007-06-01

Autores

Telis-Romero, J. [UNESP]
Cantu-Lozano, D.
Telis, V. R N [UNESP]
Gabas, A. L.

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Resumo

The rise in boiling point of grapefruit juice was experimentally measured at soluble solids concentrations in the range of 9.3-60.6 °Brix and pressures between °6.0 × 103 and 9.0 × 104 Pa. Different approaches to represent experimental data, including the Dhring's rule, the Antoine equation and empirical models proposed in the literature were tested. In the range of 9.3-29.0 °Brix, the rise in boiling point was nearly independent of pressure, varying only with juice concentration. Considerable deviations of this behavior began to occur at concentrations higher than 29.0 °Brix. Experimental data could be best predicted by adjusting an empirical model, which consisted of a single equation that takes into account the dependence of rise in boiling point on pressure and concentration. © SAGE Publications 2007.

Descrição

Palavras-chave

Concentration, Evaporation, Grapefruit juice, Vapour pressure, Boiling point, Concentration (process), Pressure effects, Thermal evaporation, Vapor pressure, Antoine equation, Fruit juices, Citrus x paradisi

Como citar

Food Science and Technology International, v. 13, n. 3, p. 225-229, 2007.