A comparative study of methods for prediction of water activity of multicomponent aqueous solutions
- 1 August 1981
- journal article
- Published by Oxford University Press (OUP) in International Journal of Food Science & Technology
- Vol. 16 (4) , 409-419
- https://doi.org/10.1111/j.1365-2621.1981.tb01832.x
Abstract
Summary: Three methods of predicting the water activity of ternary and quaternary aqueous electrolyte and non‐electrolyte solutions, with possible application to intermediate moisture foods, have been critically examined and their predictive accuracies compared. In general, the Ross equation was found to display poorer predictive accuracy when compared with the other two methods. The Zdanovskii–Stokes–Robinson and the Ferro Fontán–Benmergui–Chirife equations generally gave predictive water activity values in good agreement with measured values, but no consistent advantage of one over the other was observed.Keywords
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