Mathematical modelling of soybean oil solubility in supercritical carbon dioxide

作者：Jokic Stela^*; Svilovic Sandra; Zekovic Zoran; Vidovic Senka

来源：International Journal of Food Science and Technology, 2011, 46(5): 1031-1037.

DOI：10.1111/j.1365-2621.2011.02571.x

• Linoleic acid
• modelling
• solubility
• soybean oil
• supercritical carbon dioxide

P>The solubility of soybean oil in supercritical carbon dioxide has been determined in the pressure range of 100-300 bar and in the temperature range of 313-323 K. The obtained values (from 0.0005 to 0.02055 g L-1) have been correlated using four different empirical equations proposed correspondingly by Chrastil, del Valle and Aquilera, Adachi and Lu and Sparks et al. Since the Sparks et al. equation provided the lowest average absolute relative deviation (AARD) (10.25%) than other models in the examined experimental range, a modified equation of Sparks et al. model was developed for predicting the solubility of soybean oil in supercritical carbon dioxide as a function of temperature and density. An improved equation showed the lowest deviation (2.15%) between experimental data than the other empirical equations considered in this study. The proposed equation was also applied for correlating the solubility of linoleic acid (AARD was 2.40%).

• 出版日期2011-5