北京地区居民丙烯酰胺膳食摄入量的研究

目的应用24小时回顾询问法,估计北京地区居民丙烯酰胺摄入量。方法采用GC-MS方法检测北京市场上购买的24类食物,并应用检测结果计算2460份食谱(820人×3天)的丙烯酰胺含量。结果北京地区居民的丙烯酰胺的平均摄入量为(μg/d):男性18·6,女性16·6;97·5分位数为(μg/d):男性59·0,女性50·4。应用每kg体重计算均值[μg/(kgbw·d)]:男性0·282,女性0·284;97·5百分位数[μg/(kgbw·d)]:男性0·898,女性1·007。各餐丙烯酰胺摄入比例为:早餐20·48%,午餐38·99%,晚餐39·42%,零食1·17%。结论午餐和晚餐食品是北京地区居民丙烯酰胺的主要来源,改变北京地区居民的正餐的烹调方式和控制北京传统早餐食品中的丙烯酰胺含量是减低北京地区居民丙烯酰胺暴露量的主要措施。

Study on the acryl amide intake in the Beijing diet

OBJECTIVE: A 24-hours recall study was performed to get the acryl amide intake in the Beijing diet. METHODS: 24 separate items bought in the Beijing Market were analyzed and 2460 diet lists (820 participants x 3 days) were calculated. RESULTS: The following mean intakes of acryl amide have been estimated (microg/dm): males 18.6, females 16.6. For the 97.5 percentile of the population the intake is estimated to: males 59.0, females 50.4. As dose calculated per kg bodyweight the mean intake becomes [microg/(kg bw x d)]: males 0.282, females 0.284. For the 97.5 percentile [microg/ (kg bw x d)]: males 0.898, females 1.007. The contribution of the different meals and to the intake was as follows: breakfast 20.48%, lunch 38.99%, dinner 39.42%, snacks 1.17%. CONCLUSION: The survey leads to the conclusion that lunch and dinner are significant sources of acryl amide in a typical Beijing diet even if they have relatively low levels of acryl amide. Chinese traditional breakfast food is also an important source of acryl amide in a typical Beijing.