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Predictability of the Consistency of Porridges Using Mixtures of Different Flours

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Author(s): Irene S. T. de Carvalho | Yvonne Granfeldt | Ann-Charlotte Eliasson | Petr Dejmek

Journal: Food and Nutrition Sciences
ISSN 2157-944X

Volume: 04;
Issue: 09;
Start page: 933;
Date: 2013;
Original page

Keywords: Back-Extrusion | Consistency | Flour | Mixtures | Porridge

ABSTRACT
The purpose of this study was to investigate the predictability of the consistency of blended porridges based on the volume fractions of separate porridges made from orange-fleshed sweet potato, cowpea, dehulled soybean, dehulled sorghum and maize flour (dehulled, commercial and germinated). Accurate predictions could be made for 13 of the 21 blends investigated. The consistency of porridge consisting of mixtures of cowpea with orange-fleshed sweet potato, and cowpea with dehulled soybean was lower than expected, and was attributed to the different size distributions of the swollen flour particles. Blends containing germinated maize showed significantly lower consistency than expected in both porridges with starchy continuous phase and porridges with proteinaceous continuous phase. It was thus concluded that both amylolytic and proteolytic activity are of importance in the ameliorating effects of germinated maize.
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