Effect of cultivar differences on physical and proximate composition, and sensory attributes of sweet potato fries and crisps were determined. Physicochemical and colour characteristics of sweet potato flours and starches were evaluated using Rapid Visco Analyser and Hunter L a b, respectively. Chroma, colour intensity and hue angle were calculated. Objective and sensory parameters of sweet potato fries and crisps were evaluated. Proximate and pasting properties were typical of sweet potato tubers, flour and starches. Maltose (0.05% -0.08%), sucrose (0.05% -1.60%) contents of sweet potato were significantly different (p < 0.05). Amylose and amylopectin contents of sweet potato starches were 19.5% -24.6% and 75.4% -80.5%, respectively. Swelling power and solubility were 2.42 -2.88 and 0.11 -0.32, 5.01 and 0.02 -3.00 for flours and starches, respectively. Lovers name fries showed significantly better appearance, while Big Red and Black Vine fries showed similar sensory scores. No significant difference occurred in all the sensory attributes of crisps of the sweet potato cultivars.
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