食品添加剂是指为改善食品品质或色、香、味,以及为防腐或加工工艺的需要而加入食品中的化学合成物或者天然物质。随着食品工业和化学工业的发展,食品添加剂的种类和数量日益增多。食品添加剂毕竟不是食品的天然成分,在一定范围内使用一定剂量虽然对人无害,并具有防止食品腐败变质、增强食品感官性状或提高食品质量的作用,但如无限制地使用,也可引起各种形式的毒性表现。目前,乡镇食品企业普遍存在滥用食品添加剂的现象,因此 Food additives are chemical compounds or natural substances that are added to foods to improve food quality or color, aroma and taste as well as the need for preservatives or processing. With the development of the food industry and chemical industry, the type and amount of food additives are increasing day by day. After all, food additives are not the natural ingredients of food. Although it is not harmful to humans and has the function of preventing spoilage of food, enhancing the sensory traits of food or improving the quality of food, the use of certain dosage within a certain range may also cause Various forms of toxicity. At present, the prevalence of abuse of food additives in township food enterprises, therefore