The contact surface of oak chips / wine determined by image analysis

Abstract

The study is focused on measuring the oak chips/wine contact surface. Five samples were analysed with the doses used in oenology (2; 3; 4; 5 g.L−1). For example, for the dose of 2 g.L−1 there were obtained the surfaces, as follows: XOV US-71 cm2.L−1; XOV Fr-76 cm2.L−1; DS Fr-72 cm2.L−1; OG Md 83 cm2.L−1 and OS Md 154 cm2.L−1. The results were compared with the data known for the barrel, oak chips doses being calculated to have a similar surface, thus obtaining: XOV US-2,57 g; XOV Fr-2,41 g; DS Fr- 2,52 g; OG Md-2,19 g; OS Md-1,18 g. Measurements were done with image analysis and this is a first approach to determine this parameter for the wine.