SOME PHYSICAL PROPERTIES OF APRICOT PITS | ||||
Misr Journal of Agricultural Engineering | ||||
Article 9, Volume 28, Issue 1, January 2011, Page 149-165 PDF (449.65 K) | ||||
Document Type: Original Article | ||||
DOI: 10.21608/mjae.2011.105387 | ||||
View on SCiNiTO | ||||
Authors | ||||
S. A. Tayel1; A. A. EL Nakib1; A. K. Zaalouk2; A. N. Ahmed3 | ||||
1Prof. Emeritus of Ag. Eng. Dept., Fac. of Ag. Al-Azhar Uni., Cairo, Egypt. | ||||
2Assistant Prof. of Ag. Eng. Dept., Fac. of Ag. Al- Azhar Uni., Cairo, Egypt. | ||||
3Postgraduate student, Ag. Eng. Dept., Fac. of Ag. Al-Azhar Uni., Cairo, Egypt. | ||||
Abstract | ||||
The physical properties of apricot pits and apricot kernel are necessary for the design of equipments for processing, transportation, sorting, and breaking. In this study, some physical properties of pits and kernels were evaluated as function of moisture content varying from 8 to 19 % for apricot pits and 24 % for apricot kernels. Apricot pits, in this moisture range, pit length, width, thickness and geometric diameter increased from ( 20.81 to 22.53 mm), ( 17.44 to 18.02 mm), (11.38 to 11.66 mm) and ( 15.9 to 16.1 mm ), respectively, the projected area increased from 2.90 to 3.21 cm2, the porosity increased from 49 to 58 %,the volume increased from 0.16 to 0.17cm3, the mass increased from 1.75 to 1.84 g, bulk and true densities increased from 507 to 570 kg/m3 and 1020 to 1160 kg/m3 respectively, the rupture force of apricot pits decreased from ( 1397.9 to 581..4 N), ( 1177.2 to 341.97 N ) and ( 632.94 to186.39 N ) at X, Y and Z axes respectively, the angle of repose increased from 32.6 to 40.49º and the coefficient of static friction increased from ( 0.41 to 0.77 ), (0.65 to 0.80 ),( 0.43 to 0.55 ), (0.40 to 0.51 ) and ( 0.22 to 0.26 ) for cardboard, rubber, wood, iron and glass respectively. The apricot kernels, dimension properties (length, width and thickness) were 15.29, 10.41 and 5.27 mm respectively, the mass was 0.48 g, the volume was 0.62 cm3, the bulk and true densities were 497 and 840 kg/m3 respectively, the geometric diameter was 9.32 mm, the sphercity was 59 % and the porosity was 42%. | ||||
References | ||||
Aydin, C. (2002). Physical properties of hazelnuts. Biosystems Engineering, 82, 297–303.
Aydın, C. (2003). Physical properties of almond nut and kernel. Journal of Food Engineering, 60, 315–320.
Baryeh, E. A. (2000). Physical properties of millet. Journal of Agricultural Engineering Research, submitted.
Desphande, S. D., Bal, S., and Ojha, T. P. (1993). Physical properties of soybean. Journal of Agricultural Engineering Research, 56, 89–98.
Dorbrowksi, (2001) Adv. Colloid Interface Sci. 93:135.
Eastwood, M. (1997). Principles of Human Nutrition London Chapman and Hall. 121- 135.
EL - Raie, A.E.S., N.A. Hendawy and A.Z.Taib( 1996) A study of physical and engineering properties for some agricultural products. Misr J. Ag. Eng. 13 (1) : 211-236.
FAO 2007
Gezer, I., Haciseferogullari, H., and Demir, F. (2002). Some physical properties of Hachalilo glu apricot pit and its kernel. Journal of Food Engineering, 56, 49-57 .
Güner. M. and R. Keskin. (2004) Mechanical removal of sulphuretted apricot pit. Biosystems Engineering 88(2) :187-192.
Kaleem, F.H., Z.E.Ismail and G.R. Abd-Hakim( 1993) Factors affecting grain cleaning efficiency . Part1: Grian straw mixture and characteristics, Misr J.Ag.Eng.10(2): 369-382.
İnan.A,( 2001) On the feasibility of a novel apricot stone cracking machine, F.Ü. Fen ve Müh. Bilimleri Dergisi 13, 2, 211-223.
Mohsenin, N. N. (1970). Physical properties of plant and animal materials. New York: Gordon and Breach Science Publishers.
Mohsenin, N. N. (1982). Physical properties of plant and animal materials.New York: Gordon and Breach Science Publishers.
Özcan,M . (2000). Composition of some apricot (Prunus armeniaca L.) kernels grown in Turkey. Acta Alimentaria, 29(3), 289–293.
Ozdemir .F and Akinci . I. (2004), Physical and nutritional properties of four major commercial Turkish hazelnut varieties Journal of food Engineering , 63, 341- 347 .
Vursavus k. and Faruk.(2004). Mechanical behaviour of apricot pit under compression loading. Journal of Food Engineering 65 255–261.
Yildiz .M. Uğur (2005), Some physical properties of mash bean (Phaseolus aureus L.)seeds cultived in turkey, S.Ü. Ziraat Fakültesi Dergisi 19 (35) 41-45. | ||||
Statistics Article View: 119 PDF Download: 232 |
||||