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Title: Characterisation of ‘Braeburn’ browning disorder by means of X-ray micro-CT
Authors: Herremans, Els ×
Verboven, Pieter
Bongaers, Evi
Estrade, Pascal
Verlinden, Bert
Wevers, Martine
Hertog, Maarten
Nicolai, Bart #
Issue Date: 2013
Publisher: Elsevier
Series Title: Postharvest Biology and Technology vol:75 pages:114-124
Abstract: Unfavourable gas conditions during controlled atmosphere storage may cause browning symptoms in
‘Braeburn’ apple fruit (‘Braeburn’ browning disorder or BBD). These symptoms are likely to reflect massive
changes in the microstructure of the fruit tissue. In this study, individual cells, the internal air network
and the 3-D distribution of pores inside ‘Braeburn’ apple tissue were examined using high resolution
X-ray micro computed tomography. Different stages of BBD could be clearly resolved on the virtual
cross-sections, granting a unique 3-D insight in tissue flooding and formation of cavities in ‘Braeburn’
tissue during the development of the disorder. Image analysis methods were applied to extract morphometric
parameters such as porosity, anisotropy and connectivity to characterise microstructure. The
discriminative power of these descriptors was proven by their ability to classify fruit tissue as healthy
and disordered with a success rate of 97%. The observed distinct radial patterns of porosity, anisotropy
and connectivity may help in explaining why ‘Braeburn’ is susceptible to BBD.
ISSN: 0925-5214
Publication status: published
KU Leuven publication type: IT
Appears in Collections:Structural Composites and Alloys, Integrity and Nondestructive Testing
Division of Mechatronics, Biostatistics and Sensors (MeBioS)
× corresponding author
# (joint) last author

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