Moisture content on some engineering properties of celery (Apium Graveolens L) seeds

Authors

  • Amir Hossein Mirzabe Department of Mechanical Engineering of Biosystems, Aboureihan College, University of Tehran, Tehran, Iran
  • Mojtaba Taheri Department of Mechanical Engineering of Biosystems, Aboureihan College, University of Tehran, Tehran, Iran
  • Alireza Pouyesh Department of Horticultural Science, Aboureihan College, University of Tehran, Tehran, Iran
  • Neda Bahrami Bavani Department of Mechanics of Agricultural Machinery and Mechanization, Faculty of Agriculture, Shahid Chamran University, Ahwaz, Iran

Keywords:

Image processing technique, dimensional properties, modeling, gravimetrical properties, medicinal plant

Abstract

The study was conducted to investigate some physical properties of celery seed at various moisture levels.  The average length, width, thickness and 1000-seeds mass were 0.571, 0.429, 0.295 mm and 0.792 g, respectively, at moisture content of 5.24% (d.b).  Length, width and thickness distributions of the seeds were modeled using Generalized Extreme Value, lognormal and Weibull distributions.  Results showed that to model length of the seeds, lognormal distribution had the best performance while to model the width of the seeds Weibull distribution had the best performance.  True density has increase from 892.02 to 931.42 kg/m3 when the moisture content increased from 5.24% to 20.25% (d.b).  The angle of static friction increased from 28.45 to 39.66°, 25.15 to 34.84°, 19.57 to 27.07° and 16.72 to 19.720° for plywood, rubber, iron and galvanized metal, respectively, as the moisture content increases from 5.24% to 20.25% (d.b).  The pouring angle of repose increased from 34.70 to 39.12°, 33.37 to 36.37°, 30.59 to 33.33° and 27.16 to 29.45° for plywood, rubber, iron and galvanized metal , respectively, as the moisture content increases from 5.24% to 20.25% (d.b).  The Hele-Shaw angle of repose increased from 32.65 to 35.25°, 30.35 to 32.77°, 27.81 to 30.03° and 24.72 to 26.61° for plywood, rubber, iron and galvanized metal , respectively, as the moisture content increases from 5.24% to 20.25% (d.b).

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Published

2016-07-04

Issue

Section

VI-Postharvest Technology and Process Engineering