Physical Properties of New Egyptian Paddy Rice Varieties

Yehia, M. E.; Ramadan, A. Y.; Abou-Zaid, T.; Abdelbary, D.

doi:10.21608/mjae.2016.97756

Cited by 2 publications

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“…Evidently, as the moisture contents of the varieties of rice used decreased, mean values of the angles of internal friction increased; angle of internal friction was 17.38° at 15% product moisture content but increased to 20.25° as moisture content was lowered to 10%. When moisture content was further lowered to 5%, mean value of the angle of internal friction increased to 24.25°, this concurred with [17] that with decrease in moisture content, the angle of internal friction increases. In Figure 1, a comparison of angles of internal friction of the two varieties and forms of rice.…”

Section: Effects Of Influence Factors On Angles Of Internal Frictionsupporting

confidence: 81%

Effect of Moisture Content on Some Selected Mechanical Properties of Faro 44 and 57 Variety of Rice (Paddy and Dehusked)

Mazza,

Abubakar,

Hamisu

et al. 2024

Nigerian Journal of Tropical Engineering

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The mechanical properties of rice are among the most important parameters for designing and development of a rice milling machine, destoning machine as well as materials handling. The objective of the study was to determine the mechanical (angle of sliding and internal frictions) properties of (FARO 44 and FARO 57) paddy and dehusked at three different moisture content (5, 10 and 15%) moisture content dry basis. These properties were determined using Funnel and Baker technique and shear box apparatus respectively. The results showed that, angles of internal friction were at least 15.2°, on the average within the moisture ranges tested however, 35° angles were also obtained. Angles of sliding friction ranged between 40° - 50°. This study concludes that moisture content and variety affect the engineering property; angle of internal friction is useful in the determination of lateral and horizontal stress in the silo for grain storage.

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Section: Effects Of Influence Factors On Angles Of Internal Frictionsupporting

confidence: 81%

Effect of Moisture Content on Some Selected Mechanical Properties of Faro 44 and 57 Variety of Rice (Paddy and Dehusked)

Mazza,

Abubakar,

Hamisu

et al. 2024

Nigerian Journal of Tropical Engineering

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“…Zareiforoush et al (2011) Stated that in order to design of harvesting, conveying and processing equipments, it is necessary to determination of physical properties of grains . Sabbah et al(1994).studied the effect of moisture content on the physical properties for three Egyptian paddy rice varieties .They recorded the increase occurring in seed sphericity(S) due to the increase of moisture content. The principal axial dimensions of rye seeds are useful in selecting sieve separators and in calculating power during the rye milling process.…”

Section: Introductionmentioning

confidence: 99%

Effects of Moisture content on Physical Properties of Paddy and Dehusked Rice

Mazza

2023

Preprint

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The physical properties of rice are among the most important parameters for designing and development of agricultural machine and other equipment to handle planting, harvesting, processing, packaging and storing. rice milling machine, the physical properties of two most popular produced varieties in Nigeria (FARO 44 and FARO 57) both paddy and dehusked at three different moisture content namely 5, 10 and 15% moisture content were determined. Laboratory studies were carried out to determined physical properties of the two varieties of rice ((FARO 44 and FARO 57) important properties for the laboratory work includes: bulk density, unit density, roundness, axial dimensions ,sphericity, projected areas, unit volume, unit weight, apparent density, were determined based on different moisture content and random sampling techniques. The results showed that minimum lengths of dehusked rice ranged from 4.57 - 5.29 mm while maximum lengths were between 8.21 - 8.25 mm. For paddy these lengths were minimally 7.65 - 8.78 mm and maximum lengths were 11.39 mm. The least range of minor diameters of dehusked rice was 4.57 - 5.29 mm and maximally these were 8.21 - 8.25 mm. Intermediate diameters were minimally 1.43 mm and maximally in the range of 2.71 - 2.78 mm for dehusked rice; for paddy these were 1.65 - 1.76 mm and 2.46 - 2.78 mm, respectively. Geometric mean diameters ranged between 3.31 - 4.05 mm. For paddy, projected area obtained within the range of 11.71 - 29.75 mm 2. For dehusked rice, projected area obtained in the range of 8.79 - 21.19 mm 2. Estimates of roundness were not higher than 33.6% for paddy or 54% for some grains of dehusked rice. The grains appeared more spherical than they were round since paddy were 35.3 - 48.3% spherical while dehusked grains were 39.8 - 59.4% spherical. Bulk densities ranged between 531.0 - 553.8 kg/m 3 and 839.6 - 852.7 kg/m 3 for dehusked forms of Faro 44 and Faro 57, respectively. True density was in the range of 1071.6 - 1566.2 kg/m 3.This study concludes that moisture content and variety affect the engineering property and is useful in the design, development of machine for processing and handling of rice products. Keywords:physical properties; rice varieties, form and moisture content of paddy and dehusked

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Physical Properties of New Egyptian Paddy Rice Varieties

Cited by 2 publications

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Effect of Moisture Content on Some Selected Mechanical Properties of Faro 44 and 57 Variety of Rice (Paddy and Dehusked)

Effect of Moisture Content on Some Selected Mechanical Properties of Faro 44 and 57 Variety of Rice (Paddy and Dehusked)

Effects of Moisture content on Physical Properties of Paddy and Dehusked Rice

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