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合成色素作为食品添加剂中的一种着色剂,应用越来越广泛,合成色素不但能有效的改善食品色泽,且成本低廉,着色力强,被广泛应用于食品加工中。然而,合成食品色素常以苯、甲苯、萘等化工原料经过磺化、硝化、卤化、偶氮化等一系列有机反应而制得,因中间体和有害物质的存在,合成食
As a kind of coloring agent in food additive, synthetic pigment is used more and more widely. Synthetic pigment can not only effectively improve the color of food, but also have low cost and strong coloring ability. It is widely used in food processing. However, the synthetic food pigments often benzene, toluene, naphthalene and other chemical raw materials through sulfonation, nitration, halogenation, azo and a series of organic reactions obtained, due to the presence of intermediates and hazardous substances, synthetic food