Abstract
Herein we investigate the effect of different additives (electrolytes, amino acids, PEG, and sugars) on the cloud points (CP) of coenzyme Q10 (CoQ10) - Kolliphor HS15 (HS15) micelle aqueous solutions. The CP values were decreased with the increase of electrolytes and sugars, following: CPAl3+<CPMg2+<CPCa2+<CPNa+<CPK+<CPNH4+; CPdisaccharide<CPmonosaccharide. The presences of Arginine and Tryptophan significantly increased the CP; while the other amino acids reduced the CP. A depression of CP for CoQ10-HS15 micelle solution with PEG was molecular weight of PEG dependent. The significant thermodynamic parameters were also evaluated and discussed.
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