Solubility of β-Carotene in Binary Solvents Formed by Some Hydrocarbons with Cyclohexanone and 1-Octanol

Abstract

Experimental results are reported for the solubility of β-carotene in six binary mixed solvents formed by cyclohexanone with cyclohexane, hexane, and toluene and by 1-octanol with cyclohexane, hexane, and toluene at 293.15 K. A colorimeter was used for analysis of the β-carotene concentration. The β-carotene solubility in pure solvents increases in the order 1-octanol < hexane < cyclohexanone < cyclohexane < toluene. The solubility data as a function of binary solvent mass fractions were smoothed by a rational type equation.

Solubility prediction in octanol: A technical note

“…[6][7][8][9][10][11][12][13][14][15][16] The melting points ranged from below room temperature to 485°C and included environmentally prevalent compounds such as polycyclic aromatic Table 2 depicts the observed and predicted miscibility data of 32 common organic liquids with octanol. Predicted miscibility data were obtained by use of Equation 6.…”

“…Table 3 depicts the melting points and the experimental and predicted molar solubilities of 123 compounds reported in literature. [6][7][8][9][10][11][12][13][14][15][16] The predicted values were obtained by use of Equation 12. Linear regression analysis was performed with SPSS Version 10.0 (SPSS Inc, Chicago, IL).…”

Solubility of β-Carotene in Binary Solvents Formed by Some Hydrocarbons with tert-Butyl Methyl Ether and with tert-Amyl Methyl Ether

“…The solubility of β-carotene in the pure solvents (including ketones and ethers measured in previous papers [1][2][3] ) increases in the order 1-octane < 2-propanone < 1,2-dimethoxyethane < hexane < 2-butanone < tert-butyl methyl ether < tert-amyl methyl ether < tert-amyl methyl ether < dibutyl ether < cyclohexanone < cyclohexane < toluene.…”

“…This work continues our earlier studies on the solubility of β-carotene in binary mixed solvents formed by hydrocarbons such as hexane, cyclohexane, and toluene with 2-propanone, 2-butanone, cyclohexanone, 1-octanol, 1,2-dimethoxyethane, and dibutyl ether. [1][2][3] Currently, only limited solubility data on solid nonelectrolytes in binary mixed solvents are known, and no data on any biologically active substances such as β-carotene are available.…”

Analytical tools for the analysis of β-carotene and its degradation products

“…Remarkably, in a mixture of THF and BHT, 97% of the original absorbance was still recovered, thus giving the highest β-carotene stability within all tested solvents [ 83 ]. Tresczanowicz et al [ 85–87 ] provided a comprehensive overview of β-carotene solubility in various binary solvent systems. Hagiwara et al [ 88 ] used a mixture of DCM and hexane for dissolving β-carotene.…”