Water activity at 35 degrees C in 'sugar' plus water and 'sugar' plus sodium chloride plus water systems

Water activities of aqueous solutions of xylose, glucose, fructose and sucr ose, and of these sugars with sodium chloride, were measured and correlated with a simple empirical equation proposed by Lin et al. (1996). Parameters for the equation were obtained and, from them, values of water activity we re calculated with an average relative deviation of less than 0.14% for all the systems studied.