Study of engineering properties of selected vegetable seeds

ALKA MISHRA; JAGNNATH PRASAD SINHA; SHAGHAF KAUKAB; BHOOPAL SINGH TOMAR

doi:10.56093/ijas.v89i10.94630

Authors

ALKA MISHRA Research Scholar ICAR-CIAE, Bhopal
JAGNNATH PRASAD SINHA Principal Scientist, ICAR-Indian Agricultural Research Institute, New Delhi 110 012, India
SHAGHAF KAUKAB Research Scholar, ICAR-Indian Agricultural Research Institute, New Delhi 110 012, India
BHOOPAL SINGH TOMAR Principal Scientist & Head, Division of Vegetable Science, ICAR-IARI, New Delhi

DOI:

https://doi.org/10.56093/ijas.v89i10.94630

Keywords:

Aerodynamics, Frictional properties, Geometric properties, Gravimetric properties, Vegetable seeds

Abstract

Quality seed is the foundation block of vegetable production system. Proper post-harvest processing of seed is important to maximize yield, longevity, vigour, and overall quality. The engineering properties determination is the first and foremost step for the design of any seed processing, storage and handling machine or equipment. Engineering properties like geometric, gravimetric, frictional and aerodynamic properties of bottle gourd, sponge gourd, garden pea, and radish seeds have been determined at different levels of moisture content (7.5 % to 19 % dry basis). Results revealed a quadratic increase in all properties with moisture content except for gravimetric properties. The properties like sphericity (0.83), bulk density (710.61 kg/m3), true density (1109.79 kg/m3), angle of repose (26.41Â°), terminal velocity (10.13 m/s) and drag coefficient (0.92) were highest for garden pea seeds. Whereas, bottle gourd seeds exhibited maximum values for size (7.17 mm), projected area (115.68 mm2), porosity (53.4%) and coefficient of friction (0.727).

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