Radiolysis products and sensory properties of electron-beam irradiated high barrier food packaging films containing a buried layer of recycled low density polyethylene - Archive ouverte HAL Accéder directement au contenu
Article Dans Une Revue Food Additives and Contaminants Année : 2010

Radiolysis products and sensory properties of electron-beam irradiated high barrier food packaging films containing a buried layer of recycled low density polyethylene

Stavroula Chytiri
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Kyriakos Riganakos
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Michael Kontominas
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Résumé

The aim of the present work was to study the effect of electron-beam irradiation on the production of radiolysis products and sensory changes in experimental high barrier packaging films composed of polyamide (PA), ethylene–vinyl alcohol (EVOH) and low density polyethylene (LDPE). Films contained a middle buried layer of recycled low density polyethylene (LDPE), while films containing 100% virgin LDPE as the middle buried layer were taken as controls. Irradiation doses ranged between 0 and 60 kGy. Generally, a large number of radiolysis products were produced during e-beam irradiation even at the lower absorbed doses of 5 and 10 kGy (approved doses for food “cold pasteurization”). Amount of radiolysis products increased with irradiation dose. There were no significant differences in radiolysis products identified between samples containing a recycled layer of LDPE and those containing virgin LDPE (all absorbed doses), indicating the “functional barrier” properties of external virgin polymer layers. Sensory properties (mainly taste) of potable water were affected after contact with irradiated as low as 5 kGy packaging films. This effect increased with increasing irradiation dose.

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Dates et versions

hal-00576999 , version 1 (16-03-2011)

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Stavroula Chytiri, Anastasia Badeka, Kyriakos Riganakos, Michael Kontominas. Radiolysis products and sensory properties of electron-beam irradiated high barrier food packaging films containing a buried layer of recycled low density polyethylene. Food Additives and Contaminants, 2010, 27 (04), pp.546-556. ⟨10.1080/19440040903476582⟩. ⟨hal-00576999⟩

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