Relating rice grain quality to conditions during sun drying

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dc.creatorMeas, Pyseth
dc.creatorPaterson, Anthony Henry John
dc.creatorCleland, Donald J.
dc.creatorBronlund, John E.
dc.creatorMawson, John
dc.creatorHardacre, Allan
dc.creatorRickman, Joseph Frederick
dc.date2013-07-30
dc.date2024-12-19T12:55:16Z
dc.date2024-12-19T12:55:16Z
dc.date.accessioned2026-06-27T04:11:43Z
dc.descriptionRice grain conditions within the sun-drying bed predicted by a mathematical model during drying were used to relate drying parameters to the head rice yield (HRY) which is the key rice quality metric. A number of parameters were derived to characterise the mechanisms of grain fissures and breakage postulated in the literature, and the model was used to estimate these parameters. These parameters were then regressed against the HRY experimental data to determine the contributing mechanisms. An increase in bed temperature, the maximum temperature at the top of the bed, the size of the moisture content gradients within a rice grain and the difference from the critical point for drying were all found to negatively affect HRY. By stirring the bed regularly and covering and shading the bed during the hottest parts of the day, HRY can be significantly increased leading to better returns to the farmer.
dc.identifierhttps://hdl.handle.net/10568/165620
dc.identifier.urihttp://hdl.handle.net/123456789/24682
dc.languageen
dc.publisherWalter de Gruyter GmbH
dc.sourceMeas, Pyseth; Paterson, Anthony Henry John; Cleland, Donald J.; Bronlund, John E.; Mawson, John; Hardacre, Allan and Rickman, Joseph Frederick. 2013. Relating rice grain quality to conditions during sun drying. International Journal of Food Engineering, Volume 9 no. 4 p. 385-391
dc.subjectdrying
dc.subjectgrain quality
dc.subjectmathematical model
dc.subjectprofitability
dc.subjecttemperature
dc.subjectyields
dc.titleRelating rice grain quality to conditions during sun drying
dc.typeJournal Article

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Instituto Internacional de Investigación del Arroz (IRRI)