Thermodynamics of water-induced precipitation of cholesterol and its acetate, benzoate and stearate derivatives dissolved in 1,4-dioxane and 2-propanol.
Indian J Biochem Biophys
;
1989 Oct; 26(5): 340-2
Article
in English
| IMSEAR
| ID: sea-27733
ABSTRACT
The energetics of the precipitation process depended on the solute-solvent combination and the enthalpy and entropy of precipitation compensated each other. The partial molal volumes of the lipids in both the solvents were greater than the anhydrous molar volumes, except for cholesterol in 1,4-dioxane and cholesteryl acetate in 2-propanol where the order was reverse. While the partial molal compressibilities of all the solutes studied were negative in 1,4-dioxane, those of cholesterol and cholesteryl acetate in 2-propanol were, respectively, negative and positive. The negative values were supported by considerable solvation of the solutes, particularly in 1,4-dioxane.
Full text:
Available
Index:
IMSEAR (South-East Asia)
Main subject:
Chemical Precipitation
/
Thermodynamics
/
Water
/
Cholesterol
/
Cholesterol Esters
/
Dioxanes
/
1-Propanol
Language:
English
Journal:
Indian J Biochem Biophys
Year:
1989
Type:
Article
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