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Effects of γ-irradiation on caprolactam level from multilayer PA-6 films for food packaging: Development and validation of a gas chromatographic method |
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| Authors: | Henrique Peres Araú jo, Juliana Silva F lix, Jos Eduardo Manzoli, Marisa Padula,Magali Monteiro |
| Affiliation: | aDepartment of Food and Nutrition, School of Pharmaceutical Science, São Paulo State University, PO Box 502, 14801–902 Araraquara, SP, Brazil bNuclear and Energetic Research Institute (IPEN), São Paulo, SP, Brazil cPackaging Technology Center/Food Technology Institute (CETEA/ITAL), Campinas, SP, Brazil |
| Abstract: | A gas chromatographic method to determine caprolactam in multilayer PA-6 films used for meat foodstuffs and cheese was developed and validated. A wide linear range (0.8–400 μg/ml), RSD4.1% and recovery higher than 90.0% were obtained for the chromatographic system, while precision and accuracy of the method showed RSD3.8%, recovery from 95.5–100.0% and LOQ of 32 μg/g. Irradiated (3, 7 and 12 kGy) and non-irradiated commercial films were analyzed. Most of them increased caprolactam levels with the increase of irradiation doses. |
| Keywords: | γ-irradiation Caprolactam Food-packaging multilayer films Polyamide 6 GC Validation |
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