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Determination of some physical properties of fresh and dried tiger nut (cyperus esculentus)

 Department:Food Science Technology  
 By:usericon tunde01  

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Abstract
This study was conducted to determine the physical properties of fresh and dried tiger nut which are essential for designing engineering processes, material handling, storage, equipment design, and fabrication. Samples of Tiger nut were collected from the market (Ekeonunwa), both fresh and sun-dried was used as sample A and B respectively. Some selected physical properties of Tiger nut were determined at moisture content levels of wet basis only, the moisture content level for each sample are A39.4% and B14% . The average length, width, thickness (dimensional size), weight, geometric mean diameter, arithmetic mean diameter, sphericity index, aspect ratio, surface area, projected area, volume, true density, bulk density, and porosity were determined. The dimensional size (length, width, thickness) were 10.72mm, 9.35mm, 11.13mm3 for A and 9.28mm, 8.22mm, 9.81mm for B, while the weight for the both sample was 0.88g and 0.51g. The bulk density, true density  porosity and the volume were found to be 1.60g/ml, 1.05g/ml,  42.86%, 584.15mm3  for sample A.0.63g/m/, 1.08ml, 42.50% and 396.22mm3 for sample B respectively....
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