METHOD FOR DETECTING SUGAR COLOUR IN ALCOHOLIC BEVERAGES Russian patent published in 2025 - IPC G01N33/14 

FIELD: food industry.

SUBSTANCE: disclosed is a method for detecting sugar colour in alcoholic beverages maintained in contact with oak wood, according to which a beverage is sampled, UV spectra are recorded at wavelength of 280 nm in 10 mm quartz cuvette and optical density before treatment D_b.t. is measured. Further, egg white beaten to a homogeneous mass is added to the alcohol beverage sample at rate of 20 g/dm³ of the analysed beverage, held for 5-10 minutes, the beverage is filtered through a paper filter, the filtrate is collected, UV spectra of the filtrate are recorded at wavelength of 280 nm in 10 mm quartz cuvette using 40 vol. % water-alcohol solution of ethanol as a reference solution and optical density after treatment D_a.t. is measured. Presence of the colour in the sample is established when the condition is met.

EFFECT: invention provides higher objectivity and reliability of determining the presence of sugar colour in alcoholic beverages maintained in contact with oak wood.

1 cl, 2 dwg, 1 tbl, 9 ex