Effect of Co-Solvent on the Solubility of Ginger Bioactive Compounds in Water Using COSMO-RS Calculations

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The effects of co-solvent to the solubility of ginger bioactive compounds, 6-gingerol, 6-shogaol, 8-gingerol and 10-gingerol in hot water were calculated using the conductor-like screening model for real solvent (COSMO-RS). In this work, ethanol was used as the co-solvent. The σ-profiles of the molecules were calculated using Gaussian software and the solubility were calculated using the COSMO-RS method. The solubility of these ginger bioactive compounds were calculated at 50 to 150°C.The amounts of ethanol used were 0 mol (binary system), 0.005, 0.010 and 0.015 mol. The results show that when the concentration (mole fraction of ethanol) of co-solvent increases, the solubility of ginger bioactive compounds increase. While the temperature increases, the concentration (mole fraction of ethanol) of co-solvent decreases.

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Edited by:

Li Qiang

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174-178

Citation:

S. Z. S. Jaapar et al., "Effect of Co-Solvent on the Solubility of Ginger Bioactive Compounds in Water Using COSMO-RS Calculations", Applied Mechanics and Materials, Vol. 624, pp. 174-178, 2014

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August 2014

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$38.00

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