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Title: Measurement and modelling of water sorption isotherms of 'Conference' pear flesh tissue in the high humidity range
Authors: Nguyen, Trung Anh ×
Verboven, Pieter
Daudin, JD
Nicolai, Bart #
Issue Date: Sep-2004
Publisher: Elsevier science bv
Series Title: Postharvest biology and technology vol:33 issue:3 pages:229-241
Abstract: A rapid method. the standard saturated salt solution method (SSM) and the hygrometric instrument method for measuring sorption isotherms of Conference pear flesh tissues at low temperature (1 and 6.5 degreesC) and high water activity (0.8-1.0) were compared. The rapid pressure controlled method (PCM) could only be used at a minimum temperature of 6.5 degreesC. It was possible to determine the sorption isotherms by the saturated salt solution method using fans (SSMF) and by the hygrometric instrument method (HIM) at 1 and 6.5 degreesC. The three methods gave quite similar results, however, it is obvious that the SSMF method results in fewer data points than the other methods. The experimental data show that PCM has the advantage of speed, while HIM allows investigation of the influence of temperature on sorption isotherms below 6.5 degreesC.
URI: 
ISSN: 0925-5214
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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