Popis: |
Aroma compounds in whisky new distillates were separated by centrifugal counter-current chromatography. More polar compounds, such as alcohols and aldehydes, were easily separated from less polar esters and acetals as were expected. Moreover, less polar compounds were further separated from each other based on their small difference of partition coefficients, indices of polarity. Sulfur containing compounds were separated from corresponding non-sulfurous compounds of similar nature because of the higher polarity of sulfur atoms(s). In fractions purified from whisky new distillates by this method, three compounds with common 3,4-dithiapentyl residue, namely an alcohol, its ethyl ether and acetate, were identified. |