An Analysis of the Spelt Dehulling Process in a Cylinder Separator

Abstract

Spelt is one of unprofitable wheat types and requires an additional hulling process, in which the husks are removed from the grain. A device for dehulling spelt kernels was proposed. The described solution consists of a stainless-steel wire mesh cylinder with 4×20 mm and 4×30 mm longitudinal openings and a rotor with adjustable blade angles. Kernels were dehulled at the following angular speeds of the shaft: 16.76, 23.04, 29.32, 35.60, and 41.89 rad·s−1, and the following rotor blade angles: 50°, 60°, 70°, 80°, and 90°. The efficiency of glume and glumelle removal, the proportion of damaged kernels, and kernel and husk separation efficiency were evaluated during the experiment. The highest of kernel separation efficiency η z was 81.86% using a wire mesh cylinder with 4×30 mm longitudinal openings and 81.60% for a wire mesh cylinder with 4×20 mm longitudinal openings.

Profitability of Organic Farming of Spelt in the Climate Conditions of Serbia

“…However, scientific institutions, such as the Institute of Field and Vegetable Crops from Novi Sad, or Maize institute from Zemun polje recognized its significance and proceeded to multiply seeds to promote spelt farming (Jankovic et al, 2015;Lazarević et al, 2022). Limited areas under spelt are usually linked for high costs of husks dehulling from the grain, as the processing lines for that purposes are great investment for the majority of farms, that could lead to the zone of unprofitability (Kolankowska et al, 2023;Sinkovic et al, 2023).…”