| 摘要 |
PCT No. PCT/AU80/00020 Sec. 371 Date Feb. 4, 1981 Sec. 102(e) Date Jan. 27, 1981 PCT Filed Jun. 3, 1980 PCT Pub. No. WO80/02695 PCT Pub. Date Dec. 11, 1980.A food grade colorant 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 colorant. It may be concentrated or dried to a free flowing powder. The colorant obtained from roasted black malted barley typically has a 4 MeI content of less than 50 mg/Kg and a color greater than 14,000 EBC units at 70% solids. |
