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Effect of Gamma Irradiation on Caprolactam Migration from Multi layer Polyamide 6 Films into Food Simulants: Development and Validation of a Gas Chromatographic Method
  • Universidade Estadual Paulista (UNESP)
  • Instituto de Pesquisas Energéticas e Nucleares (IPEN)
  • Universidade São Judas Tadeu (USJT)
  • Food Technol Inst CETEA ITAL
  • Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
  • Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
  • Programa de Apoio ao Desenvolvimento Científico da Faculdade de Ciências Farmacêuticas da UNESP (PADC)
A GC method to determine caprolactam in water, 15% ethanol, and olive oil food simulants was developed and validated. Linear ranges varied from 0.96 to 642.82 mu g/mL for water, 0.64 to 800.32 mu g/mL for 15% ethanol, and 1.06 to 1062.34 mu g/g for olive oil, with correlation coefficients higher than 0.999. Method precision studies showed RSD values lower than 5.45%, while method accuracy studies showed recovery from 72 to 111% for all simulants. The effect of gamma irradiation on caprolactam migration from multilayer polyamide 6 (PA-6) films intended for cheese into water, 15% ethanol, olive oil, and 3% acetic acid simulants was also studied. For migration assay, non-irradiated and irradiated (12 kGy) films were placed in contact with the simulant and exposed at 40 degrees C for 10 days. The validated method was used to quantify caprolactam migration from multilayer PA-6 films into the simulants, which ranged from 1.03 to 7.59 mg/kg for non-irradiated films, and from 4.82 to 11.32 mg/kg for irradiated films. Irradiation caused almost no changes in caprolactam levels, with the exception of olive oil, which showed an increase in the caprolactam level. All multilayer PA-6 films were in accordance with the requirements of the legislation for caprolactam migration.
Issue Date: 
Journal of Aoac International. Gaithersburg: Aoac Int, v. 93, n. 6, p. 1874-1881, 2010.
Time Duration: 
Aoac Int
Access Rights: 
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Appears in Collections:Artigos, TCCs, Teses e Dissertações da Unesp

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