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Title: The relationship between gas transport properties and the histology of apple
Authors: Schotsmans, W ×
Verlinden, Bert
Lammertyn, Jeroen
Nicolai, Bart #
Issue Date: Aug-2004
Publisher: John wiley & sons ltd
Series Title: Journal of the science of food and agriculture vol:84 issue:10 pages:1131-1140
Abstract: The relation between skin resistance to gas diffusion, diffusivity and several histological characteristics of apple cvs Braeburn and Jonica was investigated. Large discrepancies were found between the skin resistance values measured by the efflux method and a diffusion method. It is believed that these discrepancies are due to the invalidity of Graham's law in tightly packed tissue, the existence of internal gas gradients and the types of tissue measured in the two methods. The differences between cultivars in diffusivity of O-2 and CO2 in the same tissue were related to differences in intercellular space volume and cell size. The spatial pattern of the diffusivity of oxygen and carbon dioxide could be linked to the number of cells, the cell area, the cell perimeter and the internal free space volume. The considerably lower diffusivity in the skin was believed to be caused by both the skin and the very dense tissue of the outer cortex. Changes in diffusivity during storage coincided with changes in the amount of intercellular space and in the shape of the cells. (C) 2004 Society of Chemical Industry.
URI: 
ISSN: 0022-5142
Publication status: published
KU Leuven publication type: IT
Appears in Collections:Division of Mechatronics, Biostatistics and Sensors (MeBioS)
× corresponding author
# (joint) last author

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