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Please use this identifier to cite or link to this item: http://hdl.handle.net/123456789/12126

Title: Effect of Drum Drying on the Colour, Functional and Pasting Properties of Sweetpotato-based Complementary Food
Authors: Laryea, Damian
Wireko-Manu, F. D.
Oduro, Ibok
Keywords: orange-fleshed sweetpotato
bulk density
swelling power
Issue Date: Mar-2018
Publisher: American Journal of Food Science and Technology
Citation: American Journal of Food Science and Technology, 2017, Vol. 5, No. 5, 210-219
Abstract: This study was conducted to understand the effect of drum drying on colour, functional and pasting properties of a sweetpotato-based complementary food. Four blends of complementary flours made up of Orange fleshed sweetpotato (OFSP), millet and soybean flours were formulated based on the nutrient strength of the individual flours. The functional, pasting properties and colour of the flour blends before and after drum drying was determined. Colour intensity (ΔE) and saturation (ΔC) of formulated products increased after drum drying. Water absorption capacity (WAC) of formulations ranged from 152.5 to 216.7%, swelling index (SI) from 6.65 to 7.73, bulk density (BD) from 0.787 to 0.827 g/ml and solubility from 17.78 to 20.32%. Drum drying conditions used reduced the WAC, SI, BD and solubility of the formulations. Though the drum drying conditions used did not reduce the pasting temperature, it was able to reduce the peak time and further reduce the peak viscosity, breakdown and setback viscosities. OFSP flour could be used to develop a complementary food with improved functional and pasting properties, when complemented with millet and soybean flours and processed through drum drying.
Description: This article is published in American Journal of Food Science and Technology, and also available at DOI:10.12691/ajfst-5-5-7
URI: http://hdl.handle.net/123456789/12126
ISSN: :10.12691/ajfst-5-5-7
Appears in Collections:College of Science

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