EFFECT OF ABSORPTION REFRIGERATION SYSTEM ON POTATO CHARACTERISTICS

Darwesh, M.; Elmetwalli, A.H.; Derbala, A.; Fouda, T.; Morad, M.

doi:10.21608/mjae.2010.105377

EFFECT OF ABSORPTION REFRIGERATION SYSTEM ON POTATO CHARACTERISTICS

Document Type : Original Article

Authors

¹ Lecturer, Agric. Eng. Dept., Fac. Of Agric., Tanta Univ., Egypt

² Assoc. Prof. Eng. Dept., Fac. Of Agric., Tanta Univ., Egypt

³ Prof., Agric. Eng. Dept., Fac. Of Agric., Tanta Univ., Egypt

⁴ Prof., Agric. Eng. Dept., Fac. Of Agric., Zagzig Univ., Egypt

10.21608/mjae.2010.105377

Abstract

The changes in potato charactristeics as a function of storage temperature and time were evaluated for different quality parameters ( physical: dimentions; chemical: reducing sugars, starch,, titrable activity mechanica :weight, firmness and physiological: sprouts). under using the solar diffusion absorption refrigeration system during storage period ( two months). .The main results of this research work can be concluded and summarized as follows:-
The potato length ,width, thickness, spherical shape, weight, firmness, decreasing by 5.21, 10, 11.19,12.96,9.2% after cooling storage period respectively while infected and sorputs potato percentage and sugar concentration increased to 11.76% and 15% after cooling storage period.

Main Subjects

Processing Engineering of Agricultural Products

References

Agricultural Research Center (2004). Potato cultivation and production in Egypt. Ministry of Agric., Agric. Research Center, scientific report No. 813.

Chourasia, M. K. and T. K. Goswami (2007). Simulation of effect of stack dimensions and stacking arrangement on cool-down characteristics of potato in a cold store by computional fluid dynamics. Biosystems Engineering, 96: 503-515.

Chourasia, M. K. and T. K. Goswami (2008). Product-cooling load and moisture loss under different loading patterns and cooling rates of potatoes in cold storage. Journal of Food Process Engineering, 31:339-353.

Chourasia, M. K.; P. Maji.; A. Baskey and T. K. Goswami (2005). Estimation of moisture loss from the cooling data of potatoes. Journal of Food Process Engineering, 28: 379-416.

Chourasia, M.K .; R. Saha.; A. De; P. K. Sahoo (2004). Evaluation storage losses in a commercial potato cold storage. Journal of Food Sciences and Technology, 41:507-510.

Eltawil, M. A.; D. V. K. Samuel and O. P. Singhal (2006). Potato storage technology and store design aspects. Agricultural Engineering International: the CIGR Ejournal. Invited Overview No. 11. Vol. VIII.

Ismail, Z. E. (1988). Potao crop – Agriculture – Harvesting – Handling – Storage. El-Mareff structure in Alexandria, : 23-57

Mohsenin, N. N. (1986). Physical properties of plant and animal materials. Gordon of Breach science publisher, New York.

Nourian, F.; H. S. Ramaswamy and A. C. Kushalappa (2003). Kinetics of quality change associated with potatoes stored at different temperatures. Lebensm-wiss. U-Tecnol, 36: 49-65.

Saad, A.M. (2006). A study of some engineering factors affecting potatoes handlingand storage efficiency. M. Sc. Dep. Of Agric. Eng., Faculty of agriculture. Menofiya University, Egypt.