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Title: Seed moisture dependent on physical and mechanical properties of Jatropha curcas
Authors: Bamgboye, Isaac A.
Adebayo, S.E
Keywords: Jatropha, Moisture content, mechanical and physical properties
rupture force, hardness.
Issue Date: 2012
Publisher: Journal of Agricultural Technology
Citation: Journal of Agricultural Technology 2012 Vol. 8(1): 13-26
Abstract: The moisture-dependent physical and mechanical properties of Jatropha curcas were studied. Five levels of moisture content ranging from 5.85 to 25.85 % d.b. were used. Standards methods were used to determine the physical properties, while Instron Testing Machine was used to determine some of the mechanical properties. The average length, width, thickness, thousand grains mass increased as the moisture content increased and coefficient of friction of jatropha increased linearly against various surfaces with increased in moisture content. The bulk density and true density were found to increase from 428 to 474 kg/m3 and 863 to 1035 kg/m3 respectively, while the porosity was found to increase from 50.3 to 54.2 %. The maximum rupture force was 113.99 N in the horizontal loading position, while the minimum of 26.83 N was in the transverse loading position. The maximum deformation of 2.5 mm was in the horizontal position and minimum of 0.40 mm in the vertical position. Moisture content was found to affect the properties.
URI: http://http://dspace.futminna.edu.ng/jspui/handle/1/4522
ISSN: 1686-9141
Appears in Collections:Agriculture and Bioresources Engineering

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