| 摘要 |
A food grade colourant which is substantially free of 4 methyl imidazole 4 MeI is obtained by digesting a roasted malted cereal in water by use of at least one protease and at least one carbohydrase enzyme. The aqueous extract is separated from remaining solids and retained for use as the colourant. It may be concentrated or dried to a free flowing powder. The colourant obtained from roasted black malted barley typically has a 4 MeI content of less than 50 mg/Kg and a colour greater than 14,000 EBC units at 70% solids. |
