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Publication Date:
May 2005
ISSN:
1556-3758
DOI:
10.2202/1556-3758.1014

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International Journal of Food Engineering

International Journal of Food Engineering

Editor-in-Chief: Chen, Xiao Dong

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Effects of Impeller Vane Configurations and Seed Size on Dehulling Efficiency of Sunflower Seeds Using a Centrifugal Sheller

Susanta Kumar Das Dr. / R. K. Gupta

1Indian Institute of Technology, Kharagpur, India

1Central Institute of Post Harvest Engineering & Technology, Punjab Agricultural University Campus, Ludhiana 141 004, India

Citation Information: International Journal of Food Engineering. Volume 1, Issue 3, Pages –, ISSN (Online) 1556-3758, DOI: 10.2202/1556-3758.1014, May 2005

Publication History:
Published Online:
2005-05-17

The effect of machine parameters as well as size on dehulling performance of sunflower seeds have been studied using a centrifugal sheller Forward-curved impeller vanes made of aluminum gave highest dehulling efficiency (80.12%) than that with mild steel or rubber vanes. Large size sunflower seed (length > 10 mm) at 7.3% (d.b.) showed the higher dehulling efficiency (80.47%), minimum specific energy (7.42kJ/kg) and moderate non-recoverable kernel fraction (9.82%) using forward curved aluminum vane. However, the non-recoverable kernel fraction was found to be minimum (6.21%) with the medium size seed having average length between 8.0 and 10.0mm.

Keywords: Sunflower seed; centrifugal dehulling system; dehulling efficiency; energy in dehulling; oil seeds

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