Comparison of Experimental and Calculated Solubilities of (+)-Catechin in Green Tea

Ji Hoon Kang; Sung Taik Chung; Kyung Ho Row

Journal of Industrial and Engineering Chemistry, Vol.8, No.4, 354-358, July, 2002

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Comparison of Experimental and Calculated Solubilities of (+)-Catechin in Green Tea

Ji Hoon Kang, Sung Taik Chung, and Kyung Ho Row^†

Center for Advanced Bioseparation Technology and Dept. of Chem. Eng., Inha University, Incheon 402-751, Korea

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A group contribution technique was used to estimate the solubility parameter of (+)-catechin contained in green tea. The proposed method in this work is found to be a good predictor for the solubility of (+)-catechin dissolved in solvents. By using the simpler equation for estimating solubility, the mole fraction (solubilities) of (+)-catechin in acetonitrile, chloroform, ethanol, and ethyl acetate were calculated. The agreement between the calculated solubilities and the experimental data was relatively good.

Keywords:solubility;solubility parameter;(+)-catechin;green tea

[References]

Hoftyzer PJ, vanKrevelen DW, Properties of Polymers, 2nd edn., Butterworth, London (1976)
Grubenmann A, Dyes Pigments, 21, 273 (1993)
Kupperblatt GB, Chung CI, Int. J. Powder Metal., 29(3), 229 (1993)
Bustamante P, Ochoa R, Reillo A, Escalera JB, Chem. Pharm. Bull., 42(5), 1129 (1994)
Row KH, Lee YY, HWAHAK KONGHAK, 31(6), 623 (1993)
Prausnitz JM, Molecular Thermodynamics of Fluid-Phase Equilibria, 1st Edn., Prentice-Hall, Englewood, New Jersey (1969)
Reid RC, Prausnitz JM, Poling BE, The Properties of Gases & Liquids, 4th Edn, McGraw-Hill, New York (1987)
Barton AFM, Chem. Rev., 75(6), 731 (1975)
Barton AFM, CRC Handbook of Solubility Parameters and Other Cohesion Parameters, 1st Edn., CRC Press, Boca Raton, Fla. (1983)
VanKrevelen DW, Properties of Polymers: Their Estimation and Correlation with Chemical Structure, 3rd Edn., Elsevier, New York (1990)
Kang JH, Chung ST, Row KH, HWAHAK KONGHAK, 39(4), 390 (2001)
Peiffer D, J. Appl. Polym. Sci., 25, 369 (1980)
Hansen CM, Beerbower A, Solubility Parameter, in Kirk-Othmer Encyclopedia of Chemical Technology, Supp. Vol., 2nd End. (1971)
Beerbower A, Dickey JR, Am. Soc. Lubr. Eng. Trans., 12, 1 (1969)

[Referenced By]

[Related Articles]

[1] Hoftyzer PJ, vanKrevelen DW, Properties of Polymers, 2nd edn., Butterworth, London (1976)

[2] Grubenmann A, Dyes Pigments, 21, 273 (1993)

[3] Kupperblatt GB, Chung CI, Int. J. Powder Metal., 29(3), 229 (1993)

[4] Bustamante P, Ochoa R, Reillo A, Escalera JB, Chem. Pharm. Bull., 42(5), 1129 (1994)

[5] Row KH, Lee YY, HWAHAK KONGHAK, 31(6), 623 (1993)

[6] Prausnitz JM, Molecular Thermodynamics of Fluid-Phase Equilibria, 1st Edn., Prentice-Hall, Englewood, New Jersey (1969)

[7] Reid RC, Prausnitz JM, Poling BE, The Properties of Gases & Liquids, 4th Edn, McGraw-Hill, New York (1987)

[8] Barton AFM, Chem. Rev., 75(6), 731 (1975)

[9] Barton AFM, CRC Handbook of Solubility Parameters and Other Cohesion Parameters, 1st Edn., CRC Press, Boca Raton, Fla. (1983)

[10] VanKrevelen DW, Properties of Polymers: Their Estimation and Correlation with Chemical Structure, 3rd Edn., Elsevier, New York (1990)

[11] Kang JH, Chung ST, Row KH, HWAHAK KONGHAK, 39(4), 390 (2001)

[12] Peiffer D, J. Appl. Polym. Sci., 25, 369 (1980)

[13] Hansen CM, Beerbower A, Solubility Parameter, in Kirk-Othmer Encyclopedia of Chemical Technology, Supp. Vol., 2nd End. (1971)

[14] Beerbower A, Dickey JR, Am. Soc. Lubr. Eng. Trans., 12, 1 (1969)