Bottle capsules as a barrier against airborne 2,4,6-trichloroanisole

Details zur Publikation
Autorenliste: Tarasov A., Rauhut D., Jung R.
Jahr der Veröffentlichung: 2018
Quelle: Food Chemistry
Bandnummer: 268
Erste Seite: 463
Letzte Seite: 467
Verlag: Elsevier
ISSN: 0308-8146
DOI: 10.1016/j.foodchem.2018.06.118
Sprachen: Englisch
Peer reviewed


The possibility of 2,4,6-trichloroanisole (TCA) migration through synthetic stoppers and into wine from highly contaminated air was shown by several authors. However, those experiments were usually conducted without bottle capsules, which are a common part of wine packaging. In the current study, we demonstrated that the presence of capsules (without open holes) above synthetic stoppers can reduce wine contamination by airborne d5-TCA by about 10 times or more. Generally, metallic capsules revealed better barrier properties than polyvinyl chloride counterparts. Application of EVOH film on the external surface of the polyvinyl chloride capsules usually resulted in a lower level of wine contamination. Additionally it was demonstrated, that relatively short exposure (3 months) of the bottles to highly contaminated air could cause a considerable absorption of d5-TCA by synthetic stoppers, which can subsequently lead to wine contamination after 12 months.