Solubilities of Hexanal, Benzaldehyde, 2-Furfural, 2-Phenylethanol, Phenylethanal, and γ-Nonalactone in Water at Temperatures between (50 and 100) °C

Data of the solubility x S of wort flavor compounds in water is useful to understand the behavior of these components during the production of wort. Because of this fact, the maximum solubility x S of hexanal, benzaldehyde, 2-furfural, 2-phenylethanol, phenylethanal, and γ-nonalactone in water has been measured at different temperatures. The method used was the analysis of the mole fraction of a component in water after liquid−liquid-equilibrium has been reached in a thermostat. As the investigated components show a large absorption of UV light, the mole fractions were analyzed with a spectrophotometer. Furthermore, a literature review of already reported solubility data at temperatures between (50 and 100) °C, including a comparison to the measured values, is given in this article.