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目的了解深圳市居民膳食铝暴露水平,分析深圳居民膳食铝的影响因素及食物来源。方法对2009~2013年深圳市17类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概率评估。结果深圳居民P50暴露量为1.19 mg/kg BW,P68.2暴露量为2 mg/kg BW。在居民膳食铝摄入的影响因素中,回归系数较大的是油炸型面点铝含量(0.66)和蒸煮型面点铝含量(0.41),膳食铝来源前3位的食物是叶菜、油炸型面点和蒸煮型面点,随着居民膳食暴露百分比的增加,油炸型面点和蒸煮型面点膳食铝来源的贡献越来越大。结论 68.2%的深圳居民膳食铝的摄入量低于PTWI的推荐值。减少含铝膨松剂的使用是控制铝膳食摄入的主要方式。
Objective To understand the level of dietary aluminum exposure in Shenzhen residents and analyze the influencing factors and dietary sources of dietary aluminum in Shenzhen residents. Methods The aluminum contents of 17 kinds of foods in Shenzhen from 2009 to 2013 were investigated by sampling. The dietary exposure survey data of Shenzhen in 2008 were used to evaluate the aluminum exposure probabilities. Results Shenzhen residents P50 exposure was 1.19 mg / kg BW, P68.2 exposure was 2 mg / kg BW. Among the influencing factors of residents’ dietary aluminum intake, the regression coefficients are the aluminum content (0.66) and boiling point aluminum content (0.41) in the fried noodles, the food with the top three sources of dietary aluminum is leafy vegetables, Fried noodles and cooking noodles, with the increase in the percentage of residents exposed to diet, fried noodles and cooking noodles meal aluminum contribution to the growing contribution. Conclusion 68.2% of residents in Shenzhen consumed less dietary aluminum than recommended by PTWI. Reduce the use of aluminum-containing leavening agent is the main way to control aluminum dietary intake.