Colouring or decolouring of foods

Full Title

Preparation or treatment of foods or foodstuffs, in general; Food or foodstuffs obtained thereby; Materials therefor > Colouring or decolouring of foods

Child Classifications

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• A23L 5/41 Retaining or modifying natural colour by use of additives, e.g. optical brighteners (A23L5/42 takes precedence)
• A23L 5/42 Addition of dyes or pigments, e.g. in combination with optical brighteners
• A23L 5/49 Removing colour by chemical reaction, e.g. bleaching