Determination of the volumetric shrinkage in jatropha seeds during drying

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dc.creatorValdiney Cambuy Siqueira
dc.creatorOsvaldo Resende
dc.creatorTarcísio Honório Chaves
dc.date2012
dc.date.accessioned2026-07-07T03:52:21Z
dc.descriptionhe objective of this study was to determ ine the geometric diameter of volumetric shrinkage in Jatropha seeds subjected to drying under six air conditions and to fit different mathematical models to the experimental values. Seeds with an approximate initial moisture content of 0.61 kgw kgdm -1 (kilogram of water per kilogram of dry matter) were dr ied in a convection oven at temperatures of 36, 45, 60, 75, 90, and 105°C until they reached a moisture content of 0.11 ± 0.006 kgw kgdm -1 . The experimental data were fitted to five mathematical models used to represent volumetric shrinkage in agricultural products. The models were analyzed using the coefficient of determination, chi-square, mean relative error, mean estimated error, and residual distribution. Geometric di ameter data were subjected to regression analysis by adopting a 1% level of significance. It was concluded that moisture content and drying temperature influence volumetric shrinkage in Jatropha seeds, a phenomenon satisfactorily described by the Polynomial equation , where the geometric diameter linearly decreased with a reduction of the moisture content, regardless of the drying conditions.
dc.formatapplication/pdf
dc.identifier1679-9275
dc.identifierhttps://www.redalyc.org/articulo.oa?id=303026602002
dc.identifier.urihttp://hdl.handle.net/123456789/445585
dc.languageen
dc.publisherUniversidade Estadual de Maringá
dc.relationhttp://www.redalyc.org/revista.oa?id=3030
dc.rightsActa Scientiarum. Agronomy
dc.sourceActa Scientiarum. Agronomy (Brasil) Num.3 Vol.34
dc.subjectAgrociencias
dc.titleDetermination of the volumetric shrinkage in jatropha seeds during drying
dc.typeartículo científico

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Acta Scientiarum. Agronomy - Universidade Estadual de Maringá