Author(s) :

M. L. Attanda, Attanda M. L., S. Kadiri, A. N. Jibril, I. M. T. Usman.

Volume/Issue :

Abstract :

This work presents the determination of dimensional properties of two sweet potato varieties. Principal dimensions, mean diameter, sphericity, and surface area were determined at moisture contents of 78.9%. The average dimension for length, width and thickness for Dan China and Dan Izala were found to be 139.98 mm, 74.43 mm, 63.40 mm and 131.92 mm, 60.78 mm, 47.24 mm for the varieties respectively. For both varieties studied, medium size category has the highest frequency than any other size categories. The correlation between the principal dimensions for the two local varieties were determined, the width-thickness for Dan China and Dan Izala showed a higher correlation of R2= 0.86 and R2= 0.72 respectively. No correlation or low correlation was obtained for length-width and length-thickness for the two varieties. These results are important for the design of equipment required for further processing of sweet potato and reduction of mechanical damage of agricultural produce during post-harvest handling and processing.

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