Determination of radiolysis products in gamma-irradiated multilayer barrier food packaging films containing a middle layer of recycled LDPE

Autor:	Antonios E. Goulas, Anastasia Badeka, Kyriakos A. Riganakos, Dimitrios Petridis, Michael G. Kontominas, Stavroula Chytiri
Rok vydání:	2008
Předmět:	chemistry.chemical_classification Radiation Materials science Carboxylic acid Polyethylene Food packaging chemistry.chemical_compound Low-density polyethylene chemistry Polyamide Radiolysis Organic chemistry Irradiation Layer (electronics) Nuclear chemistry
Zdroj:	Radiation Physics and Chemistry. 77:1039-1045
ISSN:	0969-806X
DOI:	10.1016/j.radphyschem.2008.04.007
Popis:	Volatile and non-volatile radiolysis products and sensory changes of five-layer food packaging films have been determined after gamma irradiation (5–60 kGy). Barrier films were based on polyamide (PA) and low-density polyethylene (LDPE). Each film contained a middle buried layer of recycled LDPE or 100% virgin LDPE (control samples). Data showed that a large number of radiolysis products were produced such as hydrocarbons, alcohols, carbonyl compounds, carboxylic acid. These compounds were detected in the food simulant after contact with all films even at the lower absorbed doses of 5 and 10 kGy. The type and concentration of radiolysis products increased progressively with radiation dose, while no new compounds were detected as a result of the presence of recycled LDPE. In addition, irradiation dose appears to influence the sensory properties of table water in contact with films.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::d45fda9037f1aaf64791a88cb66224d6 https://doi.org/10.1016/j.radphyschem.2008.04.007 Zobrazit plný text záznamu Full Text from ScienceDirect