| Titles |
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English :
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Effect of time and temperature of storage on absorption
of flavouring compounds and its effect on oxygen permeability of different plastic packaging materials
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Arabic :
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تأثير درجة حرارة وزمن التخزين على امتصاص بعض مركبات النكهة وتأثير ذلك على نفاذية الأكسجين لمواد التعبئة والتغليف البلاستيكية
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| Abstract |
The effect of temperature and storage time on flavor absorption by High-density polyethylene (HDPE), polypropylene (PP), polyethylene terephthalate (PET) and polyamide (PA) and its effect on the oxygen permeability was studied. Polymer samples were exposed to a model solution containing three flavoring compounds (limonene, decanal and octanal) during 14 and 28 days of storge at 4, 20 and 40Co. After exposure, one part of each sample was analyzed for absorbed flavouring compounds, and from the other sides the oxygen permeability was measured. After 14 days of exposure at 40 Co, HDPE and PP samples showed an increament of the oxygen permeability 26.71, 15..97 % for limonene, 11.43, 9.05% for decanal and 5.72, 4.42 % for octanal, respectively. While, after 28 days of exposure at 40 Co, PA and PET samples showed an increase of the oxygen permeability 8.69, 6.19 % for decanal, 4.35, 4.13 % for limonene and 4.33, 3.12 % for octanal respectively. Flavour absorption had an opposite effect on the oxygen permeation through PET and PA as found for HDPE and PP. Limonene seemed to have the highest absorbed amounts, followed by decanal and octanal which was absorbed in the smallest quantities after 14 days at 40Co for HDPE and PP, respectively. However, decanal showed a higher affinity for PA and PET compared to limonene and octanal. Decanal showed to have the highest absorbed amounts after 28 days at 40Co for PA and PET, respectively, followed by Limonene. All investigated polymers showed an increased absorption rate at higher storage temperatures. A higher flavour absorption level and a higher flavour absorption rate with increasing storage time was found for all investigated polymers and flavour compounds.
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| Publication year |
2008
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| Organization Name |
Food Technology Research Institute (FTRI)
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| serial title |
Egypt. J. of Appl.Sci
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| Author(s) from ARC |
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| External authors (outside ARC) |
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| Publication Type |
Journal
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