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Physical quality characters of cookies produced from composite blends of wheat and sweet potato flour

Show simple item record Jemziya, M. B. F. Mehendran, T. 2019-04-08T06:34:26Z 2019-04-08T06:34:26Z 2017
dc.identifier.issn 2536-8400
dc.description.abstract A research study was carried out to develop cookies with good nutritional and physical quality from sweet potato flour and wheat flour and to evaluate the quality characteristics. The mature sweet potato (cv. Wariapola Red) tubers were washed, peeled, cut into thin slices of 1mm thickness, dried under the sun until the pieces were quite brittle, milled and sieved. Different composite blends of wheat flour and sweet potato flour were mixed in the ratios (w/w) of 100:00, 80:20, 60:40, 40:60, 20:80 and 00:100. Cookies were then prepared from separate mixtures following manufacturing procedures. Sweet potato flour was nutritionally analyzed and it contained 2.3% protein, 9.4% dietary fiber and 85.5% soluble carbohydrate, and therefore, sweet potato flour appeared to be suitable for a successful combination with wheat flour for the production of cookies. Physical characteristics such as thickness, volume, diameter and spreading factor of the cookies decreased from 0.969 to 0.910 cm, 41.66 to 30.41 cm3, 7.4 cm to 6.52 cm and 6.43 to 5.61 respectively while density of cookies increased from 0.474 g/cm3 to 0.652 g/cm3 with increasing of sweet potato flour up to 100%. The sensory qualities showed that the cookies supplemented with 40% sweet potato flour were well acceptable in terms of colour, texture, taste and overall acceptability. The mixture of 40% sweet potato flour and 60% wheat flour had been successful for the formulation of composite cookies with better physical, nutritional and organoleptic qualities within the universally accepted standards. en_US
dc.language.iso en_US en_US
dc.publisher Ruhuna Journal of Science en_US
dc.relation.ispartofseries 8;12-23
dc.subject Cookies en_US
dc.subject Physical characters en_US
dc.subject Organoleptic qualities en_US
dc.subject Sweet potato flour en_US
dc.subject Wheat flour en_US
dc.title Physical quality characters of cookies produced from composite blends of wheat and sweet potato flour en_US
dc.type Article en_US

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