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Bottle capsules as a barrier against airborne 2,4,6-trichloroanisole
Food Chemistry ( IF 8.8 ) Pub Date : 2018-06-23 , DOI: 10.1016/j.foodchem.2018.06.118
Andrii Tarasov , Doris Rauhut , Rainer Jung

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.



中文翻译:

瓶装胶囊可抵抗空气中的2,4,6-三氯苯甲醚

几位作者证明了2,4,6-三氯茴香醚(TCA)通过合成塞子迁移并从高度污染的空气中迁移到葡萄酒中的可能性。但是,这些实验通常是在没有瓶盖的情况下进行的,瓶盖是葡萄酒包装中的常见部分。在当前的研究中,我们证明了合成塞子上方的胶囊(无开孔)可以减少空气中的酒污染d 5-TCA大约减少10倍或更多。通常,金属胶囊比聚氯乙烯胶囊具有更好的阻隔性能。在聚氯乙烯胶囊的外表面涂上EVOH薄膜通常会导致葡萄酒污染程度降低。另外证明,相对短时间(3个月)的瓶子暴露于高度污染的空气中可能会导致合成塞子大量吸收d 5 -TCA,从而在12个月后导致葡萄酒污染。

更新日期:2018-06-23
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