Study on migration level of 5 free phenols from metal cans intend to contact with food

  • LI Guo-hui ,
  • LIU Zhao-ping ,
  • QIU Kai ,
  • WU Gang ,
  • HUANG Wen ,
  • SUI Hai-xia ,
  • ZHONG Qi-ding
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  • 1(China National Research Institute of Food & Fermentation Industries Co.,Ltd, Beijing 100015, China)
    2(National Standardization Center of Food & Fermentation, Beijing 100015, China)
    3(China National Center for Food Safety Risk Assessment, Beijing 100022, China)

Received date: 2018-09-05

  Online published: 2019-01-22

Abstract

A analytical method of ultra-high performance liquid chromatography with fluorescence detector was established to detect migration of phenol, bisphenol A, methylphenol, o-methylphenol, and 4-tert-butylphenol from metal cans intend to contact with food, and the migration risk of related free phenols in metal cans was investigated. The 5 free phenols had a good linear relationship between 0.010 mg/L and 0.500 mg/L. In 4 different simulants of water,4% acetic acid,10% ethanol solution and corn oil, the recovery rate was in the range of 70.2%~118.7% and the average was 90.7%. The range of accuracy was 0.9%~7.2%(n=6). The detection limits ranged between 0.001~ 0.010 mg/L for 5 free phenols in 4 different simulants. The method has high accuracy and good reproducibility and can be used for analysis of free phenol migration in metal cans intend to contact with food. A total of 49 kinds of metal cans were soaked by corresponding food simulants, and the migration of free phenol was analyzed according to the migration experimental conditions. The migration risk of each free phenol and total amount of free phenol were within the safe limit except 4-tert-butylphenol, and bisphenol A was biggest contributors to the total migration amount of free phenol. Migration and detection rate of 5 kinds of free phenol vary under the conditions of different simulation, coating and can type.

Cite this article

LI Guo-hui , LIU Zhao-ping , QIU Kai , WU Gang , HUANG Wen , SUI Hai-xia , ZHONG Qi-ding . Study on migration level of 5 free phenols from metal cans intend to contact with food[J]. Food and Fermentation Industries, 2018 , 44(12) : 73 -79 . DOI: 10.13995/j.cnki.11-1802/ts.018696

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