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- Title
ENGINEERING PROPERTIES OF BLACK CUMIN SEED (NIGELLA SATIVA) : EFFECT OF MOISTURE CONTENT VARIATION.
- Authors
R., Sanket Sawant; Sharma, Pramod Kumar; Mani, Indra; Chopra, Sangeeta
- Abstract
Engineering properties of black cumin seed (Nigella sativa) were determined as a function of moisture content is important for food processing and equipment designing and for the product quality determination. Various engineering properties of black cumin seed depending upon the moisture content in the range of 6.16% to 30.12% (d.b) were studied. It was observed from the experiments that, engineering properties such as, length(L), width(W), thickness(T), arithmetic mean diameter (AMD), geometric mean diameter (GMD), square mean diameter (SMD), equivalent diameter (ED) significantly increased linearly with increasing moisture content. The sphericity (Φ), seed volume (Vs), mass of thousand grains (M1000), aspect ratio increased from 0.746 to 0.759, 3.40 to 5.26mm², 2.202 g to 2.425 g and 0.468 to 0.489, respectively. As the moisture content increased, bulk density (πb) decreased from 458 kg/m³ to 356 kg/m3 while, true density(πt) and porosity (ε) increased linearly from 1021 kg/m³ to 1064 kg/m³ and 55.78% to 66.67%. With the increased moisture content in seeds, the angle of repose and terminal velocity increased linearly from 24.39° to 35.36° and 3.98 m/s to 4.27 m/s, respectively. Static coefficient of friction also increased from 0.365 to 0.546, 0.419 to 0.465 and 0.365 to 0.431 for mild steel(MS), aluminum(Al) and galvanized iron (GI) sheet respectively, with the increasing moisture content.
- Subjects
BLACK cumin; GALVANIZED iron; TERMINAL velocity; MOISTURE; MILD steel; STATIC friction
- Publication
Journal of Experimental Zoology India, 2022, Vol 25, Issue 1, p1193
- ISSN
0972-0030
- Publication type
Article