Contribution to the characterization of cork's use-life

Ana Lopes Cardoso*, Cristina L. M. Silva, Fátima Poças

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

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Abstract

Oxygen permeability data is relevant for selecting wine bottle closures, but the impact of wine contact, temperature, and time use has not yet been explained. Market available stoppers were analysed for oxygen ingress over time in stoppered bottles, under different temperatures, with and without contact between the cork and wine simulant. The Weibull model described well the oxygen ingress. Differences were found between cork types, in long-term oxygen pressure values and ingress rates. The temperature effect followed an Arrhenius behaviour, with statistical significance only for micro agglomerated corks. Micro agglomerated corks exhibited slower initial oxygen ingress but higher long-term oxygen ingress than natural corks. Principal Component Analysis (PCA) showed that factors related to the bottleneck-cork interface contributed more to the variance of the system than the cork type. Liquid contact reduces oxygen ingress rate around five times. The temperature impact in the oxygen ingress was lower for natural corks than for micro agglomerated corks.
Original languageEnglish
Title of host publicationBook of abstracts
Subtitle of host publicationCork in Science and Applications Conference 2023
EditorsRicardo Alves de Sousa, Fábio Fernandes, Gabriel Serra
Place of PublicationAveiro
PublisherUniversidade de Aveiro
Pages11-16
Number of pages6
ISBN (Electronic)9789727898756
Publication statusPublished - 8 Sept 2023
EventConference on Cork Science and Applications - Hotel Solverde Spa, Vila Nova de Gaia, Portugal
Duration: 7 Sept 20238 Sept 2023
http://corkscience.web.ua.pt/

Conference

ConferenceConference on Cork Science and Applications
Abbreviated titleCSA2023
Country/TerritoryPortugal
CityVila Nova de Gaia
Period7/09/238/09/23
Internet address

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