The influence of conductivity measurement on mechanical properties of potato tubers - Short communication

J. Blahovec and A. Yurov
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J. Blahovec: Faculty of Engineering, Czech University of Life Sciences in Prague, Prague, Czech Republic
A. Yurov: Faculty of Engineering, Czech University of Life Sciences in Prague, Prague, Czech Republic

Research in Agricultural Engineering, 2010, vol. 56, issue 1, 41-46

Abstract: Deformation curves in uniaxial compression of raw potato tuber were analyzed at Nicola and Saturna varieties. In the first part of deformation (time 1 min), some part of specimens were loaded by electric field simulating simultaneous measurement of the specimen alternating-current conductivity (three levels of voltage 1, 5, and 10 V and three frequencies 1, 10, and 100 kHz). The obtained curves were analyzed by six parameters. In five of them no differences were approved statistically (α = 0.05). Only in the case of modulus of elasticity some differences were observed; however, the differences cannot be simply explained by the influence of the electric field.

Keywords: potato; conductivity; deformation curve; voltage; frequency; deformation (search for similar items in EconPapers)
Date: 2010
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Persistent link: https://EconPapers.repec.org/RePEc:caa:jnlrae:v:56:y:2010:i:1:id:10-2009-rae

DOI: 10.17221/10/2009-RAE

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