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Influence of trace metals, acids and ethanol in food-simulating liquids on the retention of ?-tocopherol in low-density polyethylene film
SIK – Institutet för livsmedel och bioteknik.
SIK – Institutet för livsmedel och bioteknik.
2000 (English)In: Food Additives and Contaminants, ISSN 0265-203X, E-ISSN 1464-5122, Vol. 17, no 8, 713-719 p.Article in journal (Refereed)
Abstract [en]

The retention of ?-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 ?-tocopherol in the LDPE film. The presence of trace metals in aqueous media accelerated loss of ?-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 less of ?-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°C. For contact with solutions containing ethanol or trace metals, an increase in temperature resulted in a greater loss of ?-tocopherol from the LDPE film.

Place, publisher, year, edition, pages
2000. Vol. 17, no 8, 713-719 p.
Keyword [en]
Food Engineering
Keyword [sv]
Livsmedelsteknik
National Category
Food Science
Identifiers
URN: urn:nbn:se:ri:diva-8554PubMedID: 11027032OAI: oai:DiVA.org:ri-8554DiVA: diva2:966426
Available from: 2016-09-08 Created: 2016-09-08Bibliographically approved

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CiteExportLink to record
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