A comparison of the relative viscosities of coffee liquor, caffeine and quinic acid
1989
Njoroge, S.M.
The relative viscosities of coffee liquor and solutions of pure caffeine and quinic acid at concentrations between 0-10% (w/v) were determined from results of efflux times through a capillary viscometer and their densities measured. The results of measurement at 20 deg C are presented and are discussed in relation to published information on taste perception. Quinic acid had a higher relative viscosity than coffee liquor at all concentrations but caffeine was sparingly soluble at the temperature of the experiment
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