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Rivista di Biologia Molecolare e Biotecnologie
Indexed/Abstracted in: EMBASE, Science Citation Index Expanded (SciSearch), Scopus
Impact Factor 0,246
Minerva Biotecnologica 2013 March;25(1):9-16
Effect of moisture content on biophysical properties of pomegranate seeds
Daraei Garmakhany A. 1, Kashaninejad M. 2, Amiri S. S. 3, Mehregan Nikoo A. R. 2 ✉
1 Department of Food Sciece and Technology, Azadshahr Branch, Islamic Azad University, Azadshahr, Golestan, Iran;
2 Department of Food Science and Technology, Gorgan University of Agricultural Sciences and Natural Resources, Gorgan Iran;
3 Department of Food Sciences and Technology, Baharan Institute of Higher Education, Gorgan, Iran
Aim: The aim of the present study was to determine the moisture dependent physical properties of dried pomegranate seeds as a function of moisture content.
Methods: In this study the moisture dependent physical properties of dried pomegranate seeds in the moisture range of 12-24% (w.b.) were determined.
Results: The major diameter (length), intermediate diameter (width), minor diameter (height) and unit mass of pomegranate seeds increased from 6.90 to 7.13 mm, 3.02 to 3.20 mm, 2.44 to 2.64 mm and 0.029 to 0.039 g as the moisture content increased from 12% to 24%, respectively. The bulk density, true density and angle of repose increased, whereas the porosity decreased with the increase in moisture content. The angle of repose, bulk density and true density increased from 24.790 to 29.6590, 469.33 to 521.33 kg.m-3 and 0.825 to 0.875 kg.m-3 respectively for the same moisture increase.
Conclusion: Although, the static coefficient of friction of pomegranate seeds on different surfaces incresed by increse in moisture content; this increse was not similar in all surfaces.