Analysis of the role of wood anatomy on oxygen diffusivity in barrel staves using luminescent imaging

SENSORS AND ACTUATORS B-CHEMICAL

卷:237

Article

del Alamo-Sanza, Maria¹  Nevares, Ignacio¹  Mayr, Torsten²  Angel Baro, Jesus¹  Martinez-Martinez, Victor¹  Ehgartner, Josef² 

[1] Univ Valladolid, ETS Ingn Agr, Grp UVaMOX, Palencia 34004, Spain

[2] Graz Univ Technol, Inst Analyt Chem & Food Chem, Appl Sensors, A-8010 Graz, Austria

关键词: Optical oxygen sensors;    Oak wood;    Oxygen diffusivity;    Barrel;    Wood anatomy;    Wine;   

DOI  :  10.1016/j.snb.2016.08.075

来源: Elsevier

【 摘 要 】

This paper explores the use of optical sensors to study the oxygen diffusivity of oak wood staves in wine barrel ageing for four months. 2-D oxygen distribution measurements were performed with planar optodes in combination with a colour RGB camera. The transparency of the optode enables to study the correlation of spatial heterogeneities -due to wood swelling during wetting- in O-2 concentration over the wood surface with data on the different anatomical structures involved. For the first time, oxygen dynamics were described with a resolution that permits the identification of the role of wood anatomy on oxygen permeability/diffusivity. (C) 2016 Elsevier B.V. All rights reserved.

【 授权许可】

Free