title: About the Role of the Bottleneck/Cork Interface on Oxygen Transfer.
abstract: The transfer of oxygen through a corked bottleneck was investigated using a manometric technique. First, the effect of cork compression on oxygen transfer was evaluated without considering the glass/cork interface. No significant effect of cork compression (at 23% strain, corresponding to the compression level of cork in a bottleneck for still wines) was noticeable on the effective diffusion coefficient of oxygen. The mean value of the effective diffusion coefficient is equal to 10(-8) m(2) s(-1), with a statistical distribution ranging from 10(-10) to 10(-7) m(2) s(-1), which is of the same order of magnitude as for the non-compressed cork. Then, oxygen transfer through cork compressed in a glass bottleneck was determined to assess the effect of the glass/cork interface. In the particular case of a gradient-imposed diffusion of oxygen through our model corked bottleneck system (dry cork without surface treatment; 200 and ∼0 hPa of oxygen on both sides of the sample), the mean effective diffusion coefficient is of 5 × 10(-7) m(2) s(-1), thus revealing the possible importance of the role of the glass/stopper interface in the oxygen transfer.
authors: Université Bourgogne Franche-Comté , AgroSup Dijon, UMR Procédés Alimentaires et Microbiologiques (PAM), 1 Esplanade Erasme, F-21078 Dijon, France.|Université Bourgogne Franche-Comté , Institut Universitaire de la Vigne et du Vin, 1 Rue Claude Ladrey, F-21078 Dijon, France.|Université de Bourgogne Franche-Comté , Laboratoire Interdisciplinaire Carnot de Bourgogne, UMR 6303 Centre National de la Recherche Scientifique (CNRS), 9 Avenue Alain Savary, F-21078 Dijon, France.
authors: Aurélie
authors: A
authors: Lagorce-Tachon
authors: Université Bourgogne Franche-Comté , AgroSup Dijon, UMR Procédés Alimentaires et Microbiologiques (PAM), 1 Esplanade Erasme, F-21078 Dijon, France.
authors: Thomas
authors: T
authors: Karbowiak
authors: Université de Bourgogne Franche-Comté , Laboratoire Interdisciplinaire Carnot de Bourgogne, UMR 6303 Centre National de la Recherche Scientifique (CNRS), 9 Avenue Alain Savary, F-21078 Dijon, France.
authors: Christian
authors: C
authors: Paulin
authors: Université de Bourgogne Franche-Comté , Laboratoire Interdisciplinaire Carnot de Bourgogne, UMR 6303 Centre National de la Recherche Scientifique (CNRS), 9 Avenue Alain Savary, F-21078 Dijon, France.
authors: Jean-Marc
authors: JM
authors: Simon
authors: Université Bourgogne Franche-Comté , AgroSup Dijon, UMR Procédés Alimentaires et Microbiologiques (PAM), 1 Esplanade Erasme, F-21078 Dijon, France.|Université Bourgogne Franche-Comté , Institut Universitaire de la Vigne et du Vin, 1 Rue Claude Ladrey, F-21078 Dijon, France.
authors: Régis D
authors: RD
authors: Gougeon
authors: Université de Bourgogne Franche-Comté , Laboratoire Interdisciplinaire Carnot de Bourgogne, UMR 6303 Centre National de la Recherche Scientifique (CNRS), 9 Avenue Alain Savary, F-21078 Dijon, France.
authors: Jean-Pierre
authors: JP
authors: Bellat
mesh_terms: D004058:Diffusion; D018857:Food Packaging / Q000295:instrumentation*; D010100:Oxygen / Q000737:chemistry*; D029963:Quercus / Q000737:chemistry*; D014920:Wine / Q000032:analysis
chemical_list: D010100:Oxygen
keywords: compression; cork; diffusion; glass/stopper interface; oxygen transfer; wine