Physical and Functional Properties of Breakfast Cereals from Blends of Maize, African Yam Bean, Defatted Coconut Cake and Sorghum Extract

Okafor G.I., Usman, G.O.


The physical and functional attributes of ready-to-eat breakfast cereals produced from blends of maize (Zea mays), African yam bean (Sphenostylis stenocarpa) (AYB), defatted coconut (Cocos nucifera) cake and sorghum (Sorghum bicolor L. Moench) malt extract, were evaluated.  Six samples were formulated by mixing the AYB+ maize composite flour with graded levels of defatted coconut (100:0, 90:10, 80:20, 70:30, 60:40, 50:50), sugar, salt and water. The samples were mixed and toasted at 280°C for 5mins each in a non-stick metallic pan, cooled and packaged. The results revealed the following ranges of physical and  functional properties; pH (4.70- 6.56), bulk density (0.29 - 0.71g/ml), water absorption capacity (68.31- 76.39%), oil absorption capacity (0.87- 1.32%), foam capacity (2.48- 3.49%), viscosity (19.73-31.08%), gelation temperature (121-157°C), emulsification capacity (5.79-9.86 g/100g), wettability (15.67-23.22 sec.) and invitro-protein digestibility (66.30- 82.2%). It is evident that there are significant variations of physical and functional attributes with addition of defatted coconut fibre in the formulations.

Keywords: Bulk density, water absorption capacity, foam capacity, viscosity, invitro-protein digestibility, gelation capacity

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ISSN (Paper)2224-6088 ISSN (Online)2225-0557

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