硫酸铝钾(铵)造成部分食品铝污染的研究

Aluminum Contamination of Foods Caused by Aluminium Potassium Sulfate (Aluminium Ammonium Sulfate)

目的调查食品在加工过程中使用硫酸铝钾(铵),造成部分食品铝污染的现状,为确定污染水平提供基础数据。方法样品经干燥、灰化、定容后,用铬天青S分光光度法检测,铝的残留量以干样品中铝计。结果共检测194份样品,铝含量在<5.00～10522mg/kg之间,其中45.4%样品超标。结论油条油饼、粉条粉皮、海蛰存在铝污染问题。

Objective To investigate the current situation of aluminum contamination in foods caused by using aluminium potassium sulfate （aluminum ammonium sulfate） in food processing,and to provide basic data for determining the level of contamination.Method After drying and ashing samples and making the sample solution to a constant volume,the levels of aluminum were determined with chrome azurol S by spectrophotometry.The residues of aluminum were calculated as the content of aluminum in dry samples.Results A total of 194 samples were determined,the contents of aluminum are in the range of5.00-10 522 mg /kg,and the rate of samples exceeding hygienic standard is 45.4%.Conclusion Problems of aluminum contamination in deep-fried dough cake,deep-fried dough sticks,vermicelli noodles,vermicelli sheets and jelly fish were existed,and more attention should be paid by food regulatory authorities and consumers.