Physical Properties of Neem Nut

Visvanathan, R.; Palanisamy, PN; Gothandapani, L.; Sreenarayanan, V. V.

doi:10.1006/jaer.1996.0003

Cited by 104 publications

(79 citation statements)

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“…The effects of moisture content and friction surfaces on static and dynamic coefficients of friction were significant (P < 0.01). Similar results were found by others (Carman 1996;Suthar & Das 1996;Visvanathan et al 1996;Baryeh 2002;Özarslan 2002).…”

Section: Static and Dynamic Coefficient Of Frictionsupporting

confidence: 91%

“…the samples were kept at low temperature (5°C) in a refrigerator for 7 days to obtain uniform moisture distribution throughout the samples. the required quantities of the samples were taken out of the refrigerator, and allowed to warm up at room temperature for c. 2 h. the wetting technique used to obtain the desired moisture content has frequently been reported (Deshpande et al 1993;Visvanathan et al 1996;Gupta & Das 1997;nimkar & Chattopadhyay 2001;sacilik et al 2003).…”

Section: Methodsmentioning

confidence: 99%

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Effect of moisture content on physical properties of some grain legume seeds

Altuntaş¹,

Demirtola

2007

New Zealand Journal of Crop and Horticultural Science

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This study was carried out to determine the effect of moisture content on physical properties of some grain legumes seeds such as kidney bean (Phaselous vulgaris), dry pea (Pisum sativum),and black-eyed pea (Vigna sinensis) seeds. Three different moisture contents for each grain legume were evaluated. The average length, width, thickness, geometric mean diameter, and unit mass of seeds ranged from 16.66, 8.86, 7.17, 10.17mm, and 0.715g for kidney bean; 7.46, 6.02, 4.49, 5.85mm, and 0.158g for pea; 9. 19, 6.96, 6.26, 7.32mm, and 0.255 g for black-eyed pea at a moisture content of 8.21%, 8.20%, and 5.66% (wet basis), respectively. The sphericity, thousand-seed mass (1000-seed mass), and projected area increased, whereas the bulk and kernel densities linearly decreased with an increase in moisture content for each grain legume seed. The porosity, the volume of seed, and angle of repose increased for three grain legumes seeds, whereas the angle of repose decreased for blackeyed pea seeds in the moisture contents studied. The static and dynamic coefficients of friction on various surfaces, namely, galvanised metal, chipboard, mild steel, plywood, and rubber also linearly increased with an increase in moisture content of each grain legume seed.

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Section: Static and Dynamic Coefficient Of Frictionsupporting

confidence: 91%

Section: Methodsmentioning

confidence: 99%

Effect of moisture content on physical properties of some grain legume seeds

Altuntaş¹,

Demirtola

2007

New Zealand Journal of Crop and Horticultural Science

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show abstract

“…Coeffi cient of static and internal friction: The coeffi cient of static friction apparatus consisted of a frictionless pulley fi tted on a frame, a cylindrical container of negligible weight with both ends opened, loading pan and test surfaces (Visvanathan et al 1996). The container, placed on the mild steel surface was fi lled with a known quantity of material and weights were added to the loading pan until the container began to slide.…”

Section: Methodsmentioning

confidence: 99%

Influence of moisture content on physical properties of minor millets

Balasubramanian

Viswanathan

2010

J Food Sci Technol

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Physical properties including 1000 kernel weight, bulk density, true density, porosity, angle of repose, coeffi cient of static friction, coeffi cient of internal friction and grain hardness were determined for foxtail millet, little millet, kodo millet, common millet, barnyard millet and fi nger millet in the moisture content range of 11.1 to 25% db. Thousand kernel weight increased from 2.3 to 6.1 g and angle of repose increased from 25.0 to 38.2 o . Bulk density decreased from 868.1 to 477.1 kg/m 3 and true density from 1988.7 to 884.4 kg/m 3 for all minor millets when observed in the moisture range of 11.1 to 25%. Porosity decreased from 63.7 to 32.5%. Coeffi cient of static friction of minor millets against mild steel surface increased from 0.253 to 0.728 and coeffi cient of internal friction was in the range of 1.217 and 1.964 in the moisture range studied. Grain hardness decreased from 30.7 to 12.4 for all minor millets when moisture content was increased from 11.1 to 25% db.

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“…The samples were kept at 5°C in a refrigerator for 7 days to allow the moisture to distribute uniformly throughout the sample. before starting the test, the required quantities of the samples were taken out of the refrigerator and allowed to warm up in room temperature (Deshpande et al 1993;Visvanathan et al 1996). The physical properties of the sugarbeet seeds were investigated at three moisture levels in the range from 8.55% to 17.14% (dry basis) and from 6.88% to 19.28% for 'Gina' and 'Leila' sugarbeet seeds, respectively.…”

Section: Methodsmentioning

confidence: 99%

Physical properties of monogerm sugarbeet (Befa vulgarisvar.altissima)seeds

Kasap¹

2006

New Zealand Journal of Crop and Horticultural Science

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Physical properties of seeds of 'Gina' and 'Leila' monogerm sugarbeet (Beta vulgaris var. altissima) varieties as a function of moisture content were evaluated. Physical properties of sugarbeet varieties such as unit seed mass, thousand-seed (1000-seed) mass, bulk density, true density, seed volume, angle of repose, and coefficient of friction on various surfaces were determined. The average unit seed mass and 1000-seed mass ranged from 0.0117 to 0.0133 g and from 10.77 to 12.00 g, as the moisture content increased from 8.55% to 17.14% (dry basis) for 'Gina'. The average unit seed mass and 1000-seed mass ranged from 0.0112 to 0.0121 g and from 12.07 to 13.70g, as the moisture content increased from 6.88% to 19.28% (dry basis) for 'Leila'. In the moisture content range, studies on re-wetted sugarbeet seeds showed that the seed volume increased from 0.0122 to 0.0147mm 3 , and from 0.0137 to 0.016mm 3 , for 'Gina' and 'Leila' sugarbeet seeds, respectively. The bulk densities decreased from 125.92 to 120.02 kg/m 3 and from 148.09 to 114.06kg/m 3 and true densities decreased from 916.70 to 827.39kg/m 3 and from 852.81 to 832.20kg/m 3 , for 'Gina' and 'Leila', respectively, whereas the angle of repose increased from 19.31°t o 21.27° and from 21.05° to 21.32°, for 'Gina' and 'Leila' respectively. The static and dynamic coefficients of friction on various surfaces, namely, plywood, mild steel, and galvanised metal also increased linearly with increasing moisture content. The plywood surface offered the maximum friction followed by mild metal and galvanised metal.

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Physical Properties of Neem Nut

Cited by 104 publications

References 0 publications

Effect of moisture content on physical properties of some grain legume seeds

Effect of moisture content on physical properties of some grain legume seeds

Influence of moisture content on physical properties of minor millets

Physical properties of monogerm sugarbeet (Befa vulgarisvar.altissima)seeds

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