Physical and nutritional properties of four orange varieties

Several physical and nutritional properties of four orange varieties (Alanya, Finike, W. Navel, and Shamouti) were determined and compared in terms of linear dimensions, length, diameter, volume, mass, geometric mean diameter, sphericity, surface area, projected area, fruit density and bulk density, porosity, packing coefficient, static coefficient of friction and apparent color of orange varieties, and total dry matter, water soluble dry matter, vitamin C, pH, titratable acidity, reducing sugar, sucrose and some minerals, i.e. Zn, Fe, Cu, K, Mg, Mn, Na, Ca and P contents. The published comparison data, which might be useful to engineers in equipment design for the orange varieties, were generally found to be statistically different. These differences could be attributed to the individual characteristics of these varieties, as well as to environmental and growth conditions. (C) 2004 Elsevier Ltd. All rights reserved.