Abstract
Some bio-technical properties of flax seeds, fennel seeds, and harmal seed capsules were determined. The size dimensions (length, width, and thickness) of flax seeds and fennel seeds were as 4.31 mm, 2.28 mm, 0.87 mm; 6.93 mm, 2.13 mm, 1.75 mm, respectively. The diameter and length for harmal seed capsules were 9.07 mm and 6.65 mm, respectively. The true density (ρt) was determined using the liquid displacement method, and the bulk density (ρb) was determined using the hectolitre tester. The bulk density for flax seeds, fennel seeds, and harmal seed capsules were determined as 384.3 kg m-3, 270.5 kg m-3 and 201.5 kg m-3, while, true density was found as 1256.5 kg m-3, 664.6 kg m-3, 936.2 kg m-3 for flax seeds, fennel seeds, and harmal seed capsules, respectively. The sphericity of for flax seeds, fennel seeds and harmal seed capsules were obtained as 0.47, 0.43, 0.72, respectively. The angle of repose was obtained as 13.84º, 17.35º, 29.94º for flax seeds, fennel seeds, and harmal seed capsules, respectively. The rubber friction surface has given the highest static friction coefficient for flax seeds, fennel seeds, and harmal seed capsules.
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