Peanut samples (2 kg) were placed in bags(25 cm 35 cm 3.6 cm ¼ 3150 cm3) of two different packaging materials: a) polypropylene (PP) ventilated pouches (Cordoba Envases, Cordoba, Argentina) having 75 mm total thickness and b)high barrier plastic pouches made of ethylene vinyl-alcohol (EVOH) having 175 mm total thickness with an oxygen transmission rate of 1e5 cm3/m2/bar/24hs (DISE S.A., Cordoba, Argentina) packaged under vacuum condition (- 760 mmHg) using an industrial packaging machine. In