| Influence of polymer matrix and adsorption onto silica materials on the migration of alpha-tocopherol into 95% ethanol from active packaging. | |
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MedLine Citation:
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PMID: 15764342 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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In this study, the effect of polymer materials with different polarity, namely low density polyethylene (LDPE) and ethylene vinyl acetate (EVA), on the migration behaviour of alpha-tocopherol from active packaging was investigated. The antioxidant was also adsorbed onto silica materials, namely SBA-15 (Santa Barbara-15) and Syloblock, in order to protect the antioxidant during extrusion and to ensure a controlled and sufficient release during the shelf-life of the food product. Migration experiments were performed at 7.0 +/- 0.5 degrees C and 95% ethanol was used as fatty food simulant. All films contained a high concentration of alpha-tocopherol, approximately 2000 mg kg(-1), to obtain an active packaging. Polymer matrix had a small influence on the migration profile. The migration of 80% of total migrated amount of antioxidant was retarded for 2.4 days by using LDPE instead of EVA. When alpha-tocopherol was adsorbed onto both silica materials, the migration of 80% of total migrated amount of antioxidant was retarded for 3.4 days in comparison to pure alpha-tocopherol. No difference was seen between the migration profiles of alpha-tocopherol adsorbed onto both silica materials. In the case of pure alpha-tocopherol, 82% of the initial amount of alpha-tocopherol in the film migrated into the food simulant at a rather fast migration rate. In the case of adsorption on silica materials, a total migration was observed. These antioxidative films can have positive food applications. |
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Authors:
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L Heirlings; I Siró; F Devlieghere; E Van Bavel; P Cool; B De Meulenaer; E F Vansant; J Debevere |
Publication Detail:
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Type: Journal Article; Research Support, Non-U.S. Gov't |
Journal Detail:
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Title: Food additives and contaminants Volume: 21 ISSN: 0265-203X ISO Abbreviation: Food Addit Contam Publication Date: 2004 Nov |
Date Detail:
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Created Date: 2005-03-14 Completed Date: 2005-06-13 Revised Date: 2008-11-21 |
Medline Journal Info:
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Nlm Unique ID: 8500474 Medline TA: Food Addit Contam Country: England |
Other Details:
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Languages: eng Pagination: 1125-36 Citation Subset: IM |
Affiliation:
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Ghent University, Department of Food Technology and Nutrition, Coupure Links, 6539000 Ghent, Belgium. |
Export Citation:
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APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
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Adsorption Antioxidants / chemistry Diffusion Drug Stability Ethanol / chemistry* Food Packaging* Food Preservation / methods Hot Temperature Polyethylene / chemistry Polymers / chemistry* Polyvinyls / chemistry Silicon Dioxide / chemistry* alpha-Tocopherol / chemistry* |
| Chemical | |
Reg. No./Substance:
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0/Antioxidants; 0/Polymers; 0/Polyvinyls; 24937-78-8/ethylenevinylacetate copolymer; 59-02-9/alpha-Tocopherol; 64-17-5/Ethanol; 7631-86-9/Silicon Dioxide; 9002-88-4/Polyethylene |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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