Res. Agr. Eng., 2010, 56(1):41-46 | DOI: 10.17221/10/2009-RAE

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

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

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

Published: March 31, 2010  Show citation

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Blahovec J, Yurov A. The influence of conductivity measurement on mechanical properties of potato tubers - Short communication. Res. Agr. Eng. 2010;56(1):41-46. doi: 10.17221/10/2009-RAE.
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    References

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