Investigation on food packaging polymers: Effects on vegetable oil oxidation.
Food Chem
; 315: 126299, 2020 Jun 15.
Article
em En
| MEDLINE
| ID: mdl-32028201
ABSTRACT
Polyethylene (PE), polypropylene (PP), polyamide (PA), and polyethylene terephthalate (PET) surfaces and particles were employed to study effects of polymer materials on linseed oil, peanut oil, rapeseed oil and sunflower seed oil oxidation. The surface types of the materials, hydroperoxide content and volatile in oils were determined by contact angle, Fourier transform infrared spectroscopy and gas chromatography-mass spectrometry. Oils on PP surfaces underwent a more rapid oxidation, followed by PA, PE and PET. Except PP sets, this order was consistent with surface hydrophilicity of polymers. Further study using polymer particles avoiding packaging barrier suggested this was probably due to barrier factors. Although PE surfaces allowed oil to have lower content of hydroperoxides, it can promote oil hydroperoxide decomposition into volatile products. Surface types of polymer materials are correlated with oxidation of contacted oil, and these surfaces can also affect the oil secondary oxidation and the degradation of oxidation products.
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Texto completo:
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Base de dados:
MEDLINE
Assunto principal:
Polipropilenos
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Verduras
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Óleos de Plantas
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Embalagem de Alimentos
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Polietileno
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Nylons
Idioma:
En
Ano de publicação:
2020
Tipo de documento:
Article