Some physical properties of linseed

Abstract

A range of physical properties of linseed (Linum usitatissimum) were determined as a function of moisture content. As the moisture content increased from 8.25 to 22.25% dry basis (d.b.), the average length, width, thickness and the geometric mean diameter varied from 4.57 to 4.86, 2.40 to 2.59, 1.03 to 1.13 and 2.24 to 2.43 mm, respectively. In the same moisture range, studies on rewetted linseed showed that, sphericity, surface area and 1000 seed mass and true density increased front 49.09% to 49.94%, 15.83 mm(2) to 18.56mm(2) and 6 g to 6.7, 1010.1 to 1020.4 kg m(-3), respectively. As the moisture content increased from 8.25 to 22.25% d.b., bulk density was decreased from 690.5 to 545 kg m(-3) whereas the angle of repose, terminal velocity and porosity were found to increase from 21.59 degrees to 26.85 degrees and 2.46 to 3.82 m s(-1), 31.64% to 46.59%, respectively. (c) 2006 IAgrE. All rights reserved Published by Elsevier Ltd.