ISO 5566:1982

Current Revision
Turmeric -- Determination of colouring power -- Spectrophotometric method

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ISO 5566:1982

Turmeric -- Determination of colouring power -- Spectrophotometric method

PUBLISH DATE 1982
ISO 5566:1982

Describes a method based on the extraction of the pigments of turmeric with hot ethanol, dilution of the extract and spectrophotometric measurement at the wavelength of maximum absorption.

The result of the measurement is expressed as curcumin as a percentage by mass.

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