Some Physical Properties of Apple cv. "Golden delicious and Double red delicious" which cultivated at El Wesata - Al Bayda - Libya

• M. M. IBRAHIM

  Department of Agricultural Engineering - College of Agriculture - Omar Al-Mukhtar University

  Author

• A. E. DRESS

  Department of Agricultural Engineering - College of Agriculture - Omar Al-Mukhtar University

  Author

Apple is among the popular fruits and of a high economic value. Sorting and grading of apple is needed for the fruit to be presented to local and foreign markets. Information about physical and mechanical properties of apple fruit is very important for understanding the behavior of  the  product during the post harvest operations. This research was undertaken to study some physical and mechanical properties of two Libyan apple cultivars (Golden delicious and Double red delicious). Some properties of apples were determined: dimensions, mass, volume, fruit density, bulk density, porosity, geometric mean diameter, sphericity, packaging coefficient, surface area, projected area, coefficient of static friction and fruit hardness. A general mathematical equation for two cv. apples were derived to predict the value of fruit mass as a function of length, width, thickness, volume and fruit density.

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