Influence of moisture and current frequency on electrical potential of sorghum grains (sorghum bicolour (l.) Moench)

Audu, J. and Ijabo, O.J. and Awulu, J.O. (2018) Influence of moisture and current frequency on electrical potential of sorghum grains (sorghum bicolour (l.) Moench). HUNGARIAN AGRICULTURAL ENGINEERING (33). pp. 24-29. ISSN 0864-7410 (print); 2415-9751 (online)

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Abstract

Non-destructive quality parameter determination of agricultural produce is the latest technological trend in agricultural metrology. This study tends to establish the use of electrical potential values to determine moisture content of sorghum grains at certain current frequency range. Electrical potential values of sorghum grains at 10, 13, 16, 19 and 22% db were measured using a circuit arrangement consisting of functional generator, grain sample holder and oscilloscope. These measure grains were carried out at current frequencies of 1, 500, 1000, 1500 and 2000 kHz using three (white, red and yellow) varieties of sorghum. Measured values obtained across all varieties ranges from – 0.2 to -14.36 volts. Statistic analysis carried out on these data shows that moisture, current frequency and variety with their interactions has significant effect at p≤0.05 on electrical potential. The study also shows that Behavioral trend between moisture and electrical potential are more visible at current frequency range of 1000 to 1500 kHz in all varieties. Regression equations were developed to predict moisture using electrical potential values.

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