2017~2018年常熟市饮料中6种食品添加剂 监测分析

目的 了解常熟市市场上饮料中苯甲酸、山梨酸、糖精钠、安赛蜜、甜蜜素和咖啡因6种食品添加剂的含量情况。方法 2017~2018年采集常熟市各大超市、农贸市场、街头饮料铺采集各类饮料, 采用高效液相色谱-串联质谱法进行检测。结果 苯甲酸在碳酸、果蔬类、茶类、咖啡类、蛋白饮料中的检出率分别为33.3%、10%、10%、6.7%、20%, 其中, 碳酸饮料超标率为3.3%, 蛋白饮料超标率为6.7%; 山梨酸在碳酸、果蔬类、茶类、咖啡类、蛋白饮料中的检出率分别为70%、18%、16.7%、10%、33.3%, 其中, 碳酸饮料超标率为10%, 蛋白饮料超标率为3.3%; 糖精钠在碳酸、果蔬类、茶类、咖啡类、蛋白类饮料中均未检出; 安赛蜜在碳酸、果蔬类、茶类、咖啡类、蛋白饮料中的检出率分别为91.7%、10%、0%、20%、40%, 其中, 碳酸饮料超标率为20%; 甜蜜素在碳酸、果蔬类、茶类、咖啡类、蛋白饮料中的检出率分别为10%、0%、10%、16.7%、6.7%; 咖啡因在碳酸、果蔬类、茶类、咖啡类、蛋白饮料中的检出率分别为58.3%、0%、40%、100%、0%, 其中, 碳酸饮料超标率为25%。结论 常熟市市场上销售的饮料还存在一定的安全风险, 需要监管部门加大监管力度, 保证食品安全, 保障老百姓身体健康。

Monitoring and analysis of six food additives in drinks in Changshu from 2017 to 2018

Objective To investigate the contents of six food additives, benzoic acid, sorbic acid, saccharin sodium, acesulfame potassium, sodium cyclamate and caffeine in drinks in Changshu market. Methods From 2017 to 2018, all kinds of beverages were collected from supermarkets, farmers'' markets and street beverage shops in Changshu, and detected by high performance liquid chromatography-tandem mass spectrometry. Results The detection rates of benzoic acid in carbonated, fruits and vegetables, tea, coffee and protein beverages were 33.3%, 10%, 10%, 6.7% and 20%, respectively. Among them, the exceeding rates of carbonated beverages and protein beverages were 3.3% and 6.7%, respectively. The detection rates of sorbic acid in carbonated, fruits and vegetables, tea, coffee and protein beverages were 70%, 18%, 16.7%, 10% and 33.3%, respectively. The detection rates of sodium saccharin in carbonated, fruit and vegetable, tea, coffee and protein drinks were 91.7%, 10%, 0%, 20% and 40% respectively, and the exceeding rates of carbonated beverages were 20%. The detection rates of sodium cyclamate in carbonated, fruit and vegetable, tea, coffee and egg drinks were 91.7%, 10%, 0%, 20% and 40%, respectively. The detection rates of caffeine in white drinks were 10%, 0%, 10%, 16.7% and 6.7% respectively. The detection rates of caffeine in carbonated drinks, fruits and vegetables, tea, coffee and protein drinks were 58.3%, 0%, 40%, 100% and 0%, respectively. Among them, the exceeding standard rate of carbonated drinks was 25%. Conclusion There are still some safety risks in drinks sold in Changshu market. It is necessary for regulatory authorities to strengthen supervision to ensure food safety and health of the people.