食用染料又称食用色素,有天然色素和合成色素。目前,食用合成色素应用于药剂中的着色,它伴随着药物进入机体,所以对其要求严格,不但本身应无毒,而且不应含任何重金属盐和其他有毒物质。在消化过程中也不致生成毒性产物。此外,最 Food dyes, also known as food colors, have natural pigments and synthetic pigments. At present, the use of synthetic pigments in the coloring of pharmaceuticals, which is accompanied by the entry of drugs into the body, requires stringent requirements. Not only should they be non-toxic, they should not contain any heavy metal salts and other toxic substances. No toxic products are generated during digestion. In addition, the most