The present study was conducted to evaluate some physical properties of sun dried Berberis fruit as a function of moisture content, varying from 9.59% to 27.90% (w.b.). Dried fruit length, width, thickness, geometric mean diameter and sphericity, increased nonlinearly from 7.19 to 7.53 mm; 3.42 to 4.03 mm; 2.78 to 3.02 mm; 4.05 to 4.51 mm and 0.56 to 0.62, respectively with increased moisture content. When we tested 1000-dried fruits, their mass increased linearly from 3.10 to 4.89 g, the true and bulk density increased nonlinearly from 769 to 845 kg m(-3) and 389 to 395 kg m(-3), respectively; with increased moisture content. Also, porosity values of dried fruits increased nonlinearly from 49.40% to 53.30%. The lowest static coefficient of friction was found on the steel surface. The angle of repose increased nonlinearly from 20.14° to 23.20° with the increasing in the moisture content.
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| http://dx.doi.org/10.1007/s13197-011-0469-y | DOI Listing |
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