期刊
JOURNAL OF EXPERIMENTAL BOTANY
卷 61, 期 10, 页码 2745-2755出版社
OXFORD UNIV PRESS
DOI: 10.1093/jxb/erq108
关键词
Controlled atmosphere; diffusion; gas transport; modelling; storage
资金
- Research Council of the KU Leuven [OT 04/31, OT 08/023)]
- Flanders Fund for Scientific Research [G.0603.08]
- Institute for the Promotion of Innovation by Science and Technology in Flanders [IWT-050633]
A permeation-diffusion-reaction model was applied to study gas exchange of apple fruit (Kanzi, Jonagold, and Braeburn) as effected by morphology and respiratory metabolism. The gas exchange properties and respiration parameters of the fruit organ tissues were measured. The actual internal tissue geometry of the fruit was reconstructed from digital fruit images and the model was solved over this geometry using the finite element method. The model was validated based on measurements of internal gas concentrations and the gas flux of the fruit to its environment. Both measurements and an in silico study revealed that gradients of metabolic gases exist in apple fruit, depending on diffusion properties and respiration of the different cultivars. Macroscale simulation confirmed that Jonagold has large potential for controlled atmosphere (CA) storage while low diffusion properties of cortex tissue in Braeburn indicated a risk of storage disorder development. Kanzi had less O-2 anoxia at CA storage compared with Braeburn.
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