Effects of moisture content, loading rate and grain size on some mechanical properties of barley seed

Document Type : Research Paper

Authors

Mohaghegh Ardabili University

Abstract

This study was carried out to determine some mechanical properties of barley seed including Deformation, Rapture Force, Rapture Energy and toughness as a function of moisture content (10.5%, 12.5%, 14.5% , 16.5%, db), loading rate (5, 15, 25, 35 mm.min-1) and grain size (small, medium, large). Tests were performed at 7 replications by the means of a factorial base plot experiment. The results showed significant effect of moisture content on all the properties (p>0.01).Also there is significant effect of grain size on rapture force, rapture energy and deformation and significant effect of loading rate on deformation at 1% level of probability. The interaction effect of moisture content- loading rate was significant on deformation and toughness (p>0.01) and on rapture force and rapture energy (p>0.05). The more percentage of moisture content, the more mean amount all the measure properties of barley seed. The mean amounts of rapture force and deformation increased linearly as the moisture content increased.

Keywords

Main Subjects


AfkariSayyah .A.H, Minaei .S, Sahari .M.A. (2009). Investigation on factors which effect on grain mechanical properties, as an index of wheat hardness. 16th national congress of Iran Food Industry, Gorgan University of agricultural science and natural resources, Gorgan Province, Iran. (In Farsi)
Alami .H. Khoshtaqaza .M. Minaiee .S. (2009).Definition of mechanical properties of soy bean seed in a quasi- static load.Science and food industries of Iran magazine. 6 (2), 124-130. (In Farsi)
Asadzadeh .A.H, Rasekh .M, Afkari .A.H. (2012). Effects of moisture content, loading direction and loading rate on mechanical properties of cotton seed (Varamin Varity), 7th national congress of Agricultural machinery and mechanization, Shiraz University, Iran. (In farsi)
ASAE D245.6 W/Corr. 1, October. (2007). Moistur relationships of plant-based agriculture products American society of agriculture and biological engineers publication.
Anonymous[A1] . (2007). ASAB EP 379.4, American Society of Agricultural and Biological Engineers, USA.
Anonymous. ([A2] 2010). Agriculture Database of FAO-STAT. Available on the http:// FAOSTAT. FAO. ORG
Anonymous. (2013). I. R. Iran Agricultural Ministry.Scheduled program of wheat seed production. (In Farsi)
Karaj .S., Müller .J. (2010). Determination of physical, mechanical and chemical properties of seeds and kernels of Jatrophacurcas L. Ind. Crops Prod.: 1-10.
Markowski .M, Majewska .K, Kwiatkowski .D, Malkowski .M, Burdylo .G. (2010). Selected geometric and mechanical properties of barley (HordeumVulgare L.) grains. International journal of food properties, 13(4): 890-905.
Mohsenin, N. N. (1978). Physical Properties of plant and animal material.1st edition.Gordon and Breach, New York, NY.
Nourijangi .A, Mortazavi .S.A., Tavakoli .M, Ghanbari .A, Tavakolipor .H, Haghayegh .G.H. (2011).Comparision of mechanical and thermal properties between two varieties of barley (HardeumVulgare L.) grains. Australian journal of agricultural engineering, 2 (5): 132-139.
Ӧztürk .T and Esen .B. (2008). Physical and mechanical properties of barley. Agricultural tropical Et subtropical, 41(3): 117-121.
Rasekh.M, Firouzabadi .B, Minaei .S, AfkariSayah .A.H, Asghari .A. (2007). Comparison of some physical and mechanical properties of Sound and Sunn pest-damaged wheat kernel of Salary variety.Science and food industries of Iran magazine. 4 (3): 21-30. (In Farsi)
Rasekh .M. Asadzadeh .A.H. (2012). Investigation of mechanical properties of cotton seed under quasi- static load.(Varamin Varity), 7th national congress of Agricultural machinery and mechanization, Shiraz University, Iran. (In Farsi)
Seifi. M.R., Alimardani. R. (2010). Comparison  of moisture-dependent physical and mechanical properties of two varieties of corn (Sc 704 and Dc 370). Australian Journal of Agricultural Engineering, 1 (5): 170-178.
Sitkei, G. (1986). Mechanics of agricultural materials. Translated by S. Bars. Elsevier Science Publishers, New York.
Stroshine .R. (1998). Physical properties of agricultural materials and food products.Department of agricultural biological engineering.Purdue University.West Lafaya, Indiana.
Tavakoli .H, Mohtasebi .S.S., Rajabipour .A, Tavakoli .M. (2009). Effect of moisture content, loading rate and grain orientation on fructure resistance of barley grain.Research in agricultural engineering, 55: 85-93.