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Title: Determination of the diffusion coefficient of tissue, cuticle, cutin and wax of apple
Authors: Veraverbeke, EA ×
Verboven, Pieter
Scheerlinck, Nico
Hoang, My Lan
Nicolai, Bart #
Issue Date: Jul-2003
Publisher: Elsevier sci ltd
Series Title: Journal of food engineering vol:58 issue:3 pages:285-294
Abstract: The cuticle of apple basically consists of a cutin and wax layer in parallel each with different diffusion properties. Diffusion coefficients were determined for the apple cultivars 'Jonagold', 'Jonagored' and 'Elstar' to accurately describe moisture transport through the cuticular membrane. Separate diffusion coefficients were estimated for tissue, cutin and wax of each cultivar by fitting model predictions, obtained with the finite element method, to experimental moisture concentration data using a non-linear least squares procedure. Initial and boundary conditions for modelling diffusion were also determined in the same experiments. Conversion between moisture concentrations and water potentials was accomplished by means of equilibrium moisture content curves, which were experimentally determined for each cultivar. For all cultivars, diffusion coefficients ranged from 1.92 x 10(-15) to 3.03 x 10(-14) m(2)s(-1) for wax, from 4.03 x 10(-14) to 7.16 x 10(-14) m(2) s(-1) for cutin and from 4.33 x 10(-12) to 1.12 x 10(-11) m(2) s(-1) for tissue. (C) 2003 Elsevier Science Ltd. All rights reserved.
ISSN: 0260-8774
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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