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Measurement and fissuring of rice kernels during quasi-moisture sorption by image analysis

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Title: Measurement and fissuring of rice kernels during quasi-moisture sorption by image analysis
Authors: Shimizu, N.1 Browse this author →KAKEN DB
Haque, M.A.2 Browse this author
Andersson, M.3 Browse this author
Kimura, T.4 Browse this author →KAKEN DB
Authors(alt): Shimizu, Naoto1
Haque, Md. Ashraful2
Andesson, Martin3
Kimura, Toshinori4
Keywords: brown rice
moisture
sorption
fissure
image analysis
Issue Date: Jul-2008
Publisher: Elsevier
Journal Title: Journal of Cereal Science
Volume: 48
Issue: 1
Start Page: 98
End Page: 103
Publisher DOI: 10.1016/j.jcs.2007.08.009
Abstract: Fissuring associated with kernel elongation was evident in a moisture-adsorbing environment at 15 °C of relative humidity 88.72±0.28% with moisture content from 6% (d.b.) to 16.3% (d.b.). The average length and width of 800 kernels was measured during the sorption test using a Cervitec Grain Inspector equipped with two digital cameras. Samples were exposed to both a moisture-adsorbing and desorbing environments at 15 °C with relative humidities of 23.4±0.53%, 55.9±0.27%, 70.98±0.28% and 88.72±0.28%. On image analysis, the kernels changed in size from 5.13 to 4.84 mm in length and 2.9 to 2.73 mm in width. Both length and width changed as expected during moisture-adsorbing and moisture-desorbing tests. Fissured kernel percent was related to changes in the average length of the kernels during the moisture-adsorbing tests. The average length and fissured kernel percent of rice kernels measured by image analysis may be considered as a reliable indicator of changes in their dimensions during quasi-static moisture sorption processes.
Rights: © 2008. This manuscript version is made available under the CC-BY-NC-ND 4.0 license http://creativecommons.org/licenses/by-nc-nd/4.0/
http://creativecommons.org/licenses/by-nc-nd/4.0/
Type: article (author version)
URI: http://hdl.handle.net/2115/68594
Appears in Collections:農学院・農学研究院 (Graduate School of Agriculture / Faculty of Agriculture) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

Submitter: 清水 直人

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