DETERMINATION OF PHYSICAL PROPERTIES OF ALMOND SEED RELATED TO THE DESIGN OF FOOD PROCESSING MACHINES M

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Date

2016

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Faculty of Physical Sciences and Faculty of Life Sciences, University of Ilorin

Abstract

In this study, some selected physical properties of two varieties of Almond seed (Red and White) grown in Nigeria were determined. The physical properties of Red Almond were Major Diameter (49.35±4.16mm), Intermediate Diameter (33.05±2.79mm), Minor Diameter (23.37±2.31mm), Weight (10.20±2.24g), Geometric mean diameter (33.59±2.41mm), Arithmetic mean Diameter (35.26±2.45mm), Surface Area (3564.6±524.1mm2), Sphericity (68.3±4.36%), Volume (0.5023±0.07cm3), Density (19.53±3.82g/cm3) while values of coefficient of static friction of 0.45±0.04, 0.40±0.06 and 0.52±0.06 were recorded for glass, metal and wood surface respectively in red almond. Also values of angle of internal friction of 24.12 ± 1.92, 21.93±3.00 and 27.50± 2.64 were recorded for glass, metal and wood surfaces in red almond. The properties of white Almond were: Major diameter (61.26±4.15mm), Intermediate diameter (29.61±3.05mm), Minor diameter (21.52±1.59mm), Weight (10.9±1.52g), Geometric mean diameter (33.86±2.09mm), Arithmetic mean diameter (37.47±2.13mm), Surface area (3616.10±453.7mm2), Sphericity (55.39±3.46%), Volume (0.51±0.06cm3), Density (22.33±3.48g/cm3) while values of coefficient of static friction of 0.41±0.06, 0.41±0.07 and 0.51±0.05 were recorded for glass, metal and wood surface respectively in white almond. Also values of angle of internal friction of 22.20± 2.76, 22.38 ±3.45 and 26.96± 2.23 were recorded for glass, metal and wood surfaces in white almond. Statistical test (independent t test) on the properties showed there were significant difference at 5% level between Red Almond and White Almond.These properties are also needed for analytical prediction of the drying behaviour of agricultural materials. These properties are also use to determine heat transfer in agricultural materials.

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Keywords

Almond seed, Processing design, Characteristics, Geometric, surface area, diameter

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