Uptake and Release of Aroma Compounds by an Ethylene Propylene Diene Monomer Rubber Sealing Polymer: Investigating Aroma Carryover in a Model Wine System
| Autor: | Jörg Gottmann, Jens Schuster, Jochen Vestner, David Müller, Ulrich Fischer |
|---|---|
| Rok vydání: | 2021 |
| Předmět: |
Octanol
Polymers Wine Alkenes chemistry.chemical_compound Bottling line Natural rubber Organic chemistry Aroma chemistry.chemical_classification Volatile Organic Compounds biology digestive oral and skin physiology food and beverages General Chemistry Polymer Ethylenes biology.organism_classification Partition coefficient chemistry Odor visual_art Odorants visual_art.visual_art_medium Rubber General Agricultural and Biological Sciences |
| Zdroj: | Journal of agricultural and food chemistry. 69(38) |
| ISSN: | 1520-5118 |
| Popis: | Aromatized wines and regular table wines are often filled on the same bottling line. Sealing polymers in the filling line absorb volatiles from aromatized wines and may migrate due to insufficient cleaning into the subsequently bottled regular wine. Unintentional carryover of volatiles may lead to accusation of illegal aromatization of wine. Absorption, cleaning efficacy, and migration of volatiles into ethylene propylene diene monomer rubber were investigated in a model system. Direct thermal desorption-gas chromatography-mass spectrometry analysis of seven aroma compounds monitored variation in the polymer (μg/g). Absorption of volatiles was mostly driven by their octanol/water partition coefficients. Cleaning of polymers removed 11 to 62% of the absorbed volatiles. Subsequent immersion of cleaned polymers into model wine revealed migration of 20 to 57% of the remaining volatiles. Sensory tests suggested the impact of transferred volatiles into subsequent model wine. For α-ionone, an odor activity value of 1.03 indicated a potential sensory impact. |
| Databáze: | OpenAIRE |
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