Title
Water activity in solutions containing organic acids
Date Issued
01 January 1998
Access level
metadata only access
Resource Type
journal article
Author(s)
Publisher(s)
Marcel Dekker Inc
Abstract
A thermodynamic model for the activity coefficient was used to predict in some food-related solutions. Water activity values for organic acids solutions (malic, tartaric and citric) were measured experimentally and used to adjust interaction parameters for the UNIFAC model. The partial dissociation phenomenon for weak electrolytes in aqueous systems was considered and concentrations of species were calculated. Predictions of aw with mean deviations of 0.26% were obtained.
Start page
1789
End page
1805
Volume
16
Issue
October 9
Language
English
OCDE Knowledge area
Biotecnología agrícola, Biotecnología alimentaria
Scopus EID
2-s2.0-0032193542
Source
Drying Technology
ISSN of the container
07373937
Sponsor(s)
The authors gratefilly acknowledge the financial support of FAPESP
Sources of information:
Directorio de Producción Científica
Scopus