Comprehensive Evaluation of Dynamic Impact as a Measure of Potato Quality
European Journal of Biophysics
Volume 3, Issue 6, December 2015, Pages: 59-68
Received: May 30, 2015; Accepted: Jun. 16, 2015; Published: Dec. 22, 2015
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Authors
Mostafa M. Azam, Agriculture Engineering Department, Faculty of Agriculture, Minoufiya University, Shibin El-Kom, Egypt; Department of Agriculture Systems Engineering, College of Agricultural and Food Sciences, King Faisal University, Al-Hassa, Saudi Arabia
Ayman H. Amer Eissa, Agriculture Engineering Department, Faculty of Agriculture, Minoufiya University, Shibin El-Kom, Egypt; Department of Agriculture Systems Engineering, College of Agricultural and Food Sciences, King Faisal University, Al-Hassa, Saudi Arabia
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Abstract
Comprehensive evaluation of dynamic impact (free fall) of potato tubers were conducted to ascertain relation of drop height, impact surface, water irrigation also the size of tubers on impact parameters such as (bruise area, impact energy, absorbed energy, coefficient of restitution and dynamic stiffness factor). In addition, five different impact surfaces were used namely (cardboard, wood, steel, plastic and foam) on the platform of the equipment. Potato tubers under different water irrigation (fresh water and treated water) were divided into two mass groups (90 -180 g), M1, and (1- 90 g), M2. Tubers dropped from four heights (40, 30, 20, 10 cm) onto the different surfaces and the different impact parameters were measured. Results showed impact damage measured in terms of bruise diameter is highly influenced by the impact surfaces. Steel surface inflicted the greatest impact damage on the tubers. Impact energy of tuber is greatly influenced by drop height and mass of tuber. Tuber, which dropped from heights (40 cm), absorbed the greatest energy indicating that they suffered the most impact damage. Dynamic stiffness factor for tuber was decreased by increasing storage period. Tuber with low dynamic stiffness factor led to more absorbed energy than tuber with higher dynamic stiffness factor. Moreover, designers of potato harvesters, packaging materials, processing plants and handlers of potato tubers to reduce mechanical damage, especially those due to impact and ensure good quality products, can use results obtained.
Keywords
Bruise Area, Dynamic Stiffness Factor, Impact Energy, Coefficient of Restitution, Treated Water
To cite this article
Mostafa M. Azam, Ayman H. Amer Eissa, Comprehensive Evaluation of Dynamic Impact as a Measure of Potato Quality, European Journal of Biophysics. Vol. 3, No. 6, 2015, pp. 59-68. doi: 10.11648/j.ejb.20150306.13
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