Moisture Content and Its Influence on the Physical Properties of Tallow Seed for Efficient Threshing Machine Design

Ishaya Genesis, Rimamnuskep Stephen, D. Y. Andefikir

Abstract


The study investigated the moisture content on physical properties of tallow (Detarium senegalense) seeds. A randomized complete block design comprising of eight treatments with three replications were used. The initial moisture contents of the tallow seeds were determined before and after oven drying. Moisture conditioning was done in four moisture levels (19.65, 20.72, 21.90 and 22.81% dry basis). The findings showed that the length, width and thickness of the seeds ranged between 3.1 to 4.6, 2.7 to 4.2 and 1.2 to 2.3 mm, respectively, while the mean of geometric diameter and equivalent surface area ranged between 2.92 to 6.6 mm and 26.79 to 119.36 cm2, respectively. The results obtained in this study will provide useful information for mechanization of various unit operations involved in post-harvest processing and also in the development and evaluation of optimization parameters for efficient and effective processing equipment. Further studies on other engineering properties of tallow seed (thermal and aerodynamics) are needed to have comprehensive data in the study area.


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