Physical properties of neem (Azadirachta indica) seeds and kernels relevant in the design of processing machineries

  • A. A. Balami Department of Agricultural and Bioresources Engineering, Federal University of Technology, P.M.B 65, Minna, Niger State, Nigeria
  • M. Aliyu Department of Agricultural and Bioresources Engineering, Federal University of Technology, P.M.B 65, Minna, Niger State, Nigeria
  • S. M. Dauda Department of Agricultural and Bioresources Engineering, Federal University of Technology, P.M.B 65, Minna, Niger State, Nigeria
  • O. Peter Department of Agricultural and Bioresources Engineering, Federal University of Technology, P.M.B 65, Minna, Niger State, Nigeria

Abstract

This study was undertaken to determine some physical properties of neem seeds and kernels such as axial dimensions, true density, bulk density, surface area, sphericity, moisture content, coefficient of friction, angle of repose and porosity that are relevant in the design of processing machineries.  Results shows that the seeds and kernels have major, intermediate and minor diameter values of 13.641.15 mm, 6.800.41 mm and 5.540.44 mm and 9.321.13 mm, 4.320.63 mm and 3.380.35 mm respectively. The true density, bulk density, surface areas and the sphericity determined were 379.0015.16 kg/m3, 39.2930.001 kg/m3, 169.9331.15 mm2, 0.640.043 for the seed while for the kernel were 930.038.53 kg/m3, 534.8910.99 kg/m3, 70.6313.98 mm2, 0.610.044 respectively at an average moisture content of 13.80 % for the seed and 11.9 % for the kernel on wet basis. The coefficient of friction determined on three different structural surfaces namely plywood, glass and mild steel for the seeds were 0.38, 0.42 and 0.33 respectively at an angle of repose of 34.52o while that of the kernels were 0.49, 0.56 and 0.43 respectively at an angle of repose of 42.47°. The mean porosity obtained for the seed and kernel were 89.62 % and 42.47 % respectively.

Published
Aug 1, 2014
How to Cite
BALAMI, A. A. et al. Physical properties of neem (Azadirachta indica) seeds and kernels relevant in the design of processing machineries. Arid Zone Journal of Engineering, Technology and Environment, [S.l.], v. 10, p. 53-62, aug. 2014. ISSN 2545-5818. Available at: <http://azojete.com.ng/index.php/azojete/article/view/143>. Date accessed: 22 july 2019.
Section
Articles