| Influence of trace metals, acids and ethanol in food-simulating liquids on the retention of alpha-tocopherol in low-density polyethylene film. | |
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MedLine Citation:
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PMID: 11027032 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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The retention of alpha-tocopherol (vitamin E) in low-density polyethylene (LDPE) film was investigated when in contact with different food-simulating liquids. Variations of the aqueous food simulants approved by the EU for testing of interactions between packaging materials and food, and an alternative fatty food simulant (95% aqueous ethanol) were used to study the influence of trace metals and acids, as well as variation in pH and ethanol concentration, on the stability of alpha-tocopherol in the LDPE film. The presence of trace metals in aqueous media accelerated loss of alpha-tocopherol from the film, while the addition of citric or ascorbic acid counteracted this loss. In contact with aqueous ethanol at a concentration of 50% or higher, the loss of alpha-tocopherol from the film was total. However, with solutions containing less than 50% ethanol, the antioxidant was almost completely retained in the film, unless the temperature was increased from 6 to 40 degrees C. For contact with solutions containing ethanol or trace metals, an increase in temperature resulted in a greater loss of alpha-tocopherol from the LDPE film. |
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Authors:
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C Wessling; T Nielsen; A Leufvén |
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: 17 ISSN: 0265-203X ISO Abbreviation: Food Addit Contam Publication Date: 2000 Aug |
Date Detail:
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Created Date: 2000-10-18 Completed Date: 2000-10-18 Revised Date: 2006-11-15 |
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: 713-9 Citation Subset: IM |
Affiliation:
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SIK-Swedish Institute for Food and Biotechnology, Göteborg, Sweden. carolina.wessling@sik.se |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Acids
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chemistry* Antioxidants / chemistry Ascorbic Acid / chemistry Chelating Agents / chemistry Chromatography, High Pressure Liquid / methods Citric Acid / chemistry Copper / chemistry Ethanol / chemistry* Food Contamination / analysis, prevention & control Food Packaging Iron / chemistry Polyethylene / chemistry* Solvents / chemistry Temperature Trace Elements / chemistry* Vitamin E / chemistry* |
| Chemical | |
Reg. No./Substance:
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0/Acids; 0/Antioxidants; 0/Chelating Agents; 0/Solvents; 0/Trace Elements; 1406-18-4/Vitamin E; 50-81-7/Ascorbic Acid; 64-17-5/Ethanol; 7439-89-6/Iron; 7440-50-8/Copper; 77-92-9/Citric Acid; 9002-88-4/Polyethylene |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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