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Articles by Y. Azmi
Total Records ( 2 ) for Y. Azmi
  Y.M. Bande , N.M. Adam , Y. Azmi and O. Jamarei
  Bitter melon seed (Egusi) is of medicinal value in addition to being a food source, biofuel and in cosmetics. Its dehulling has been a problem to its farmers and properties are moisture dependent. The aim of determination of these properties is to guide the design of processing equipment for planting, storing, dehulling and other post-harvest processing. In moisture range of 7.11-38.70% in dry basis, 1000 seed mass increased from 0.0949-0.1299 kg and surface area from 25.394-27.827 mm2 while geometric and arithmetic mean diameters were 2.83-2.98 and 7.66-8.79 mm, respectively,. At moisture level of 7.11% in dry basis, average length, thickness and width of Egusi “bitter” melon seed were 13.199, 1.853 and 7.924 mm, respectively. Decrease was recorded for Sphericity (from 0.215-0.196) and Porosity (0.541-0.444%) while angle of repose increased from 23.66-33.63°. Bulk density rose from 414.006-456.339 kg m-3 while true density decreased from 901.515-821.668 kg m-3. Coefficient of friction on aluminium (0.2736-0.3172) and PVC (0.2999-0.3782) plywood (0.3388-0.3598), metal (0.2767-0.3198), were obtained by relating the angle made to the height, as the seeds start to slide along an inclined plane made of each material. Seed hull breaking force on horizontal axis increased but a decrease was observed on vertical axis.
  Y.M. Bande , N.M. Adam , B.O. Jamarei and Y. Azmi
  The aim of the present work is to determine the physical and mechanical properties of Egusi melon fruits. These properties are required for the purpose of mechanizing the harvest and post harvest operations of the fruits, such as storage, transportation, processing and packaging. This paper presents some of these properties in relation to the “Egusi” fruit and how they were determined and values obtained. It uses have been identified in medicine, cosmetics and as a biodiesel feedstock. Basic dimensions and mass were determined with a digital gauge and scale with accuracy 0.01 mm and 0.01 g, respectively. Maximum length, width, thickness and mass of 100 samples were 12.86 cm, 12.53 cm, 15.52 cm and 1031.5 g, respectively. Arithmetic and Geometric mean diameters were between 5.68-13.63 and 5.58-13.22 cm while mean Bulk and True densities were 404.98 and 1074.6 kg m-3 on 3 and 6 runs, respectively. The sphericity and aspect ratio were about 1, with average packaging coefficient on 5 separate runs of 33.49. The average vertical and horizontal weight to break the fruit was 121.23 and 74.09 kg, respectively. These findings will guide Egusi harvesting machine design and also gives information on loading capacity in transportation and storage of the harvested fruit prior to processing.
 
 
 
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