Some Physical and Mechanical Properties of Crataegus Fruit

Abstract

The knowledge of physical properties of Crataegus fruit is necessary for the design of post-harvest equipment such as cleaning, sorting, grading, kernel removing, storage, packaging and processing of fresh fruits. This research was done to analyze some physical and mechanical properties of the Crataegus fruit in the moisture of 71.23% w.b. Other results showed that linear dimensions varied from 18.22 to 29.10 mm in length, 17.92 to 27.79 mm in width, 13.82 to 21.40 mm in thickness and 16.35 to 25.65 mm in geometric mean diameter. Mean values of fruit mass and volume were measured as 4.273 g and 4657.8 mm³, respectively. The mean values of sphericity, aspect ratio and surface area were calculated as 87.74%, 0.754 and 1316.42 mm², respectively. The mean values of bulk density, true density and porosity were 660 g/m³, 1040 g/m³ and 31.44%, respectively. The friction coefficient over the surfaces of plywood, galvanized steel and glass were 0.39, 0.45 and 0.54, respectively.