Document Type : Original Article

Authors

Department of Agricultural Machinery Engineering, Faculty of Agriculture, University of Tabriz, Tabriz, Iran

Abstract

In order to design and manufacturing some postharvest equipment, determination of some hydrodynamic properties of crops are necessary. The quality of products in global and local markets can be increased by applying these properties and receive economical benefits. For these purpose, two local varieties of apples in the East Azerbaijan province, Iran(Asheghi and Gare Yapraq)were selected.Asheghi and Gare Yapraq apples varieties  were randomly hand picked in  two times (14th and 23th July, 2012) ,and in one time (14th July, 2012) respectively. Then some of their physical and hydrodynamic properties such as mass, density, volume, projected area, terminal velocity, drag, bouncy and gravity forces were studied. The mean values of mass of fruit, density, volume, projected area, terminal velocity, drag, bouncy and gravity forces of Asheghi variety for first harvest time, were 47.57 gr, 773.23 kg m-3 , 61.71 cm3, 32.23 cm2 ,0.40 m s-1, 0.12 N , 0.61 N, 0.42 N and for second harvest time, 58.82 gr , 765.81 kg m-3, 77.06 cm3, 25.80 cm2, 0.43 m s-1, 0.11 N, 0.76 N, 0.52 N respectively. The corresponding value for Gare Yapraq variety were obtained as 66.42 gr, 712.67 kg m-3 , 93.43 cm3, 45.38 cm2, 0.52 m s-1, 0.29 N, 0.92 N, 0.60 N  respectively.

Keywords

Anonymous, FAO (2010). FAOSTAT database. Available at: http://faostat.fao.org.
Dewey, D.H., Stout, B.A., Matthews, R.W. and Bekker-Arkema, F.W. (1966). Developing of hydro handling system for sorting and sizing apples for storage in pallet boxes. USDA, Marketing Research
Report No: 743.
Edgar,A.D., Claycome, R. and Hansen, T. (1957). Flume Systems for handling Bulk Stored Potatoes. USDA, Marketing Research Report No.177.
Gorji Chakespari, A., Rajabipour, A. and Mobli, H. (2010). Mass modelingof two apple varieties by geometrical attributes. Australian Journal of Agricultural Engineering, 1(3): 112-118.
Janatizadeh, A., Naderi Boldaji, M.,Fatahi, R.Ghasemi Varnamkhasti, M. and Tbatabaeefar, A. (2008). Some post-harvest physical properties of Iranian apricot fruit. International agrophysics, 22, 356-363.
Jordan R.B. and Clark C.J.(2004). Sorting of kiwifruit for quality using drop velocity in water. Transactions of the ASAE, 47(6), 1991-1998.
Kheiralipour, K., Tabatabaeefar, A., Mobli, H., Mohtasebi, S.S., Rafiee, S., Rajabipour, A. and Jafari, A. (2010). Terminal velocity and its relationship to physical characteristics of apple (Malus domestica Borkh L.). Int. J. Food Prop., 13: 261–271.
Kheiralipour, K., Tabatabaeefar, A., Mobli, H., Rafiee, S., Sharifi, M., Jafari, A. and Rajabipour, A. (2008). Some physical and hydrodynamic properties of two varieties of apple (Malus domestica Borkh L.). International Agrophysics, 22, 225-229.
Khodabandehloo, H. (1999). Physical properties of Iranian export apples. M.S. Thesis. Tehran Univ. Karaj, Iran, pp: 1-102.
Meisami-asl, E., Rafiee, S., Keyhani, A. and Tabatabaeefar, A. (2009). Some Physical Properties of Apple cv. ‘Golab’. Agricultural Engineering International: the CIGR Ejournal. Manuscript 1124. Vol. XI.
Matthews, R.W., Stout, B.A., Dewey, D.H. and Bekker-Arkema, F.W. (1965). Hydro handling of apple fruits. Trans ASAE 28(3):65-130.
Mirzaee, E., Rafiee, S., Keyhani, A. and Emam-Djom-Eh, Z.(2009). Physical properties of apricot to characterize best post harvesting options. Australian J. Crop Sci., 3: 95–100.
Mohsenin N.N. (1986). Physical Properties of Plant and Animal Materials: Structure, Physical Characteristics, and Mechanical Properties. Gordon and Breach Press, New York.
Ozturk, I., Ercisli, S. and Kalkan, F. (2010). Physical and chemical properties of three late ripening apple cultivars. Int. Agrophys, 24: 357-361.
Stroshine, R. (1998). Physical Properties of Agricultural Materials and Food Products. department of agricultural and biological engineering purdue university. Aerodynamic and hydrodynamicproperties: 10:257-264.
Pflug, I.J. and Levin, J.H.(1961). Actual Grower Results with Water Flotation Bulk Box Unloaders for Fruits. Eastern Fruit Grower 24(8):6-8.
Stout, B.A., Dewey, D.H., Vis, E.G. and Herrick, T.F.(1966). A prototype hydro handlingsystem for sorting and sizing apple beforestorage. USDA, Marketing Research Report No: 948.
Saracoglu, T., Ucer, N. and Ozarslan, C.(2011). Engineering properties and susceptibility to bruising damage of table olive (Olea europaea)fruit. Int. J. Agric. Biol., 13: 801–805.