Colorimetric method for determining the color of wine

Details Colorimetric method for determining the color of wine Colorimetric method for determining the color of wine

2007-11-27

2007-11-27

Evans, F. L. (Department: 2877)

Optics: measuring and testing

By shade or color

C356S300000, C356S319000

Reexamination Certificate

active

10381305

ABSTRACT:
The invention relates to a method for determining the color of wine from grapes. The method involves digesting the grapes in a pectolytic enzyme solution and a sulfur dioxide solution; diluting the solution with diluted acid and spectrophometric reading of the resulting solutions. The invention also relates to a program that calculates the probable color of the wine based on the spectroscopic data and physical-chemical parameters of the wine.

REFERENCES:
patent: 3935317 (1976-01-01), Bianchi
patent: 2117579 (1998-08-01), None

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