PHYSICAL AND MECHANICAL PROPERTIES OF NERICA PADDY (RICE)
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- NGN 3000
Abstract
The determination of the physical and mechanical properties of NERICA paddy (FARO's 44(SIPI), 51(Isadane), 52(WITA 40) and 57(TOX4004-43-1-2-1)) at different moisture contents were carried out. The paddy rice was studied under un-parboiled and parboiled states. The results indicate that the size ranges were 3.88mm to 5.14mm for FARO 51; 3.91mm to 4.98mm for FARO 57; 3.62mm to 4.61mm for FARO 52 and 3.10mm to 4.82mm for FARO 44. This explains that no single sample of NERICA paddy can effectively represent the size of the other samples. In mechanical properties, results indicate that FARO 51 had highest values of rupture force, 42.00N at 13% moisture content in longitudinal loading position and FARO 52 had lowest values of rupture force, 23.10N at 13% moisture content for un-parboiled samples in lateral loading position. FARO 51 had highest values of rupture force, 39.50N at 13% moisture content in longitudinal loading position and FARO 52 recorded lowest rupture force, 15.80N at15% moisture content for parboiled samples in lateral loading position. It implies that force beyond these points at this moisture contents may cause damage to the NERICA paddy.
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