作者: Marina Ramos , Ana Beltrán , Mercedes Peltzer , Artur J.M. Valente , María del Carmen Garrigós
DOI: 10.1016/J.LWT.2014.04.019
关键词:
摘要: The migration of antioxidant (AO) agents, carvacrol and thymol, from polypropylene (PP) packaging films containing the studied compounds at 80 g/kg separately an equimolar mixture them into food simulants was investigated. Fast reliable analytical procedures were developed validated for analysis AOs in simulants. For aqueous simulants, solid phase extraction followed by GC–MS performed. Fatty directly analysed HPLC-UV isooctane ethanol 950 mL/L, respectively. release dependent on type stimulant AO incorporated. In particular, high levels obtained both isooctane, showing thymol higher migration. kinetics PP showed a Fichian behaviour with diffusion coefficients ranging 1 to 2 × 10−14 m2/s; except where 4-6 values obtained. activity extracts confirmed DPPH method, capacity especially 42.2% inhibition. results suggest that show potential use as active extending shelf-life products.