咸宁市某高校女大学生人群奶茶糖精钠和甜蜜素暴露的风险评估

Risk assessment for saccharin sodium and cyclamate exposure in milk tea among female college students in Xianning City

目的调查咸宁市某高校女大学生饮用奶茶中糖精钠和甜蜜素的含量,预测女大学生经饮用奶茶摄入糖精钠和甜蜜素的日均暴露量,评估其对人体健康可能产生的潜在危害。方法 2019年10—11月,采取分层抽样原则在咸宁市某高校按照年级和学院分类,抽取2 359名女大学生参与奶茶摄入量调查。同时在该高校内的两家奶茶店采集全部在售的56款奶茶,采用国标方法对采集样品中的糖精钠和甜蜜素含量进行检测,利用点评估模型和简单分布模型评估糖精钠和甜蜜素通过饮用奶茶途径可能导致的健康风险。结果咸宁市某高校女大学生人群每日奶茶平均摄入量是(190±50)g,糖精钠和甜蜜素的平均残留量分别是(0.007 1±0.002 0)和(0.025 3±0.008 1)g/kg。点评估模型和简单分布模型显示,女大学生人群从奶茶摄入的糖精钠和甜蜜素均远低于各自的每日允许摄入量(ADI),其暴露量均未达到各自ADI的1%。结论咸宁市女大学生人群通过日常饮用奶茶摄入的糖精钠和甜蜜素处于相对安全水平,但仍应提高自我保护意识,减少食用过量添加食品添加剂的食品。

Objective To investigate the contents of saccharin sodium and cyclamate in milk tea among female students in a college of Xianning City,predict the daily exposure of saccharin sodium and cyclamate consumed through drinking milk tea,and explore its potential health hazards. Methods According to the stratified sampling principle,2 359 female college students were selected from a college in Xianning City according to their grades and colleges to participate in the tea intake survey from October to November in 2019. At the same time,all 56 kinds of milk tea sold in two milk tea shops in the college were collected. The contents of saccharin sodium and cyclamate in milk tea were detected by the national standard methods. Exposure assessments of the saccharin sodium and cyclamate exposure were carried out by point assessment and simplified distribution models. Results The average daily intake of milk tea was(190±50)g among female students in a college of Xianning City,the mean residues of saccharin and cyclamate were(0.007 1±0.002 0) and(0.025 3±0.008 1)g/kg,respectively. The point evaluation model and simple distribution model showed that the intake of saccharin sodium and cyclamate from milk tea in female college students was far lower than their respective allowable daily intake(ADI),and their exposure did not reach 1% of ADI. Conclusion The saccharin sodium and cyclamate consumed by female college students in Xianning through daily consumption of milk tea are at a relatively safe level,but the self-protection consciousness should still be enhanced,and the intake of food with excessive food additives should be reduced.