Quality Characteristics of shortbread Biscuit Fortified with Fermented Jack bean Flour
Journal Title: International Journal of Agricultural Science and Food Technology - Year 2017, Vol 3, Issue 3
Abstract
Biscuit are usually produced from wheat flour, increasing cost and limited supply of wheat demand that attention be given to the application of indigenous grains to totally or partially replace wheat in bakery products. This study evaluated the effect of substituted fermented jack bean flour (FJF) on wheat flour on proximate, mineral, physical and sensory properties of shortbread biscuit (SBB). Jack beans were soaked in water (6 h), de-hulled, re-soaked (12 h), sundried (3 days), oven-dried (55 °C, 24 h), milled, sieved and packaged for further processing. Shortbread biscuits (SBB) were produced using different levels of wheat flour substituted with FJF in 10% and 20% and using wheat flour as control. Sensory evaluation of the biscuits was carried out using 5 point hedonic scale. The data obtained during the study was analyzed statistically using analysis of variance. Proximate composition, mineral, physical characteristics and sensory properties of the biscuit samples were determined. Moisture, crude protein, crude fibre, fat, ash and carbohydrate of the SBB ranged from 6.85-8.77, 8.41-10.17, 1.58-2.14, 18.39-19.42, 1.81-2.11 and 59.49-61.51%, respectively. Addition of FJF significantly increased the Ca (0.11 %), P (6.38 %), Mg (0.18 %), Fe (2.29 %) and Mg (2.18 %) of the SBB compared to values obtained from 100% wheat flour. SBB with 20% FJF had the highest spread factor and spread ratio of 5.73 and 6.62, while SBB with 10% FJF had the least value. Sensory evaluation showed that SBB with 10 % FJF was preferred in terms of flavour, mouth feel and overall acceptability. It was concluded that substitution of FJF into wheat flour gave the biscuit with the best overall quality acceptability.
Authors and Affiliations
Friday Ogori Akama, Ajayi FF, Folorunsho OA, Ogori AF
Keywords
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- EP ID EP324161
- DOI 10.17352/2455-815X.000020
- Views 65
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