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Related Experiment Videos

[Styrene migration into wine contained in polyester resin tanks]

M Giffone, S Brun

    Annales De La Nutrition Et De L'Alimentation
    |January 1, 1978
    PubMed
    Summary

    Polyester resin wine tanks can leach styrene, impacting wine flavor. This study quantizes styrene migration, offering insights for manufacturers and users to prevent organoleptic damage.

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    Area of Science:

    • Food Science and Technology
    • Polymer Chemistry

    Context:

    • Polyester resins are increasingly used in wine tank manufacturing and coating.
    • Unpolymerized styrene migration from these tanks causes organoleptic damage to wine.

    Purpose:

    • To understand the styrene migration mechanism from polyester resin wine tanks.
    • To investigate the influence of time, temperature, and alcohol content on styrene migration.
    • To identify and quantify other migrating substances.

    Summary:

    • Styrene migration was studied in laboratory containers and practical tank conditions.
    • Migration was modeled as a diffusion phenomenon, with diffusion coefficients calculated.
    • Ethylbenzene and mesityl oxide were identified as impurities in the wine and tank walls.

    Impact:

    • Provides data to predict tank behavior over time based on diffusion coefficients.
    • Offers recommendations for manufacturers and users regarding material quality and processing conditions.
    • Highlights the potential for other impurities, like mesityl oxide, to affect wine quality.

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