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目的了解深圳市儿童主要食品铝的膳食暴露水平,评估深圳市儿童铝膳食暴露的安全性。方法 2009-2011年对深圳市11类主要食品的铝含量进行抽样调查,应用深圳市2008年的膳食营养状况调查数据进行铝的膳食暴露评估。结果深圳儿童膳食铝摄入量P50为1.31mg/d,占暂定每周可耐受量(PTWI)的31.76%,铝摄入量P95为3.74mg/d,占PTWI的96.31%,居民铝摄入量P97.5为4.51mg/d,占PTWI的127.00%,P97.5的膳食铝来源前3位的食物种类依次是蔬菜2.41mg(34.53%)、发酵型面点2.22mg(31.81%)和豆类0.75mg(10.41%)。结论深圳儿童膳食铝的摄入量的P95是安全的,而P97.5超过PTWI的推荐标准。减少含铝膨松剂的使用是控制铝膳食摄入的主要途径。
Objective To understand the dietary exposure of aluminum, the main food of children in Shenzhen, and evaluate the safety of aluminum exposure in children in Shenzhen. Methods The aluminum content of 11 types of main foodstuffs in Shenzhen was sampled from 2009 to 2011. The dietary exposure status of aluminum in Shenzhen was evaluated by using the 2008 survey data of dietary conditions. Results The P50 of dietary intake of aluminum in Shenzhen was 1.31mg / d, accounting for 31.76% of the tentative weekly tolerable amount (PTWI), the P95 of aluminum intake was 3.74mg / d, accounting for 96.31% of PTWI, The amount of P97.5 was 4.51mg / d, accounting for 127.00% of the PTWI. The top three sources of dietary aluminum from P97.5 were 2.41mg (34.53%) vegetables and 2.22mg (31.81%) fermented pasta Beans 0.75mg (10.41%). Conclusion The P95 intake of dietary aluminum for children in Shenzhen is safe, while P97.5 exceeds the recommendation of PTWI. Reduce the use of aluminum-containing leavening agent is the main way to control aluminum dietary intake.