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Rheological characteristics of wheat flour dough as influenced by ingredients of parotta.

Indrani, D. and Venkateswara Rao, G. (2007) Rheological characteristics of wheat flour dough as influenced by ingredients of parotta. Journal of Food Engineering, 79 (1). pp. 100-105.

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Abstract

The effects of addition of salt (0.5%, 1.0% and 1.5%), sugar (0.5%, 1.0% and 1.5%), egg (2.5%, 5.0% and 7.5%) and refined groundnut oil (5.0%, 10.0%, 15.0% and 20.0%) on various rheological characteristics of dough, as measured by the farinograph, mixograph, extensograph and Instron universal testing machine, were studied. Addition of increasing amounts of salt, egg and oil increased farinograph stability from 3.5min for the control sample to 9.5, 4.5 and 6.5min, respectively and decreased to 3.0min with sugar. The extensograph ratio figure, area increased with the addition of egg and decreased on addition of oil. The mixograph peak height increased when salt or egg was added, but decreased on addition of oil and addition of sugar produced no effect. Values of apparent biaxial extensional viscosity (ABEV), compressive stress, hardness and cohesiveness increased on addition of salt or egg, but they decreased on addition of sugar or oil. The force decay parameter value decreased with the addition of salt and egg, but increased when sugar or oil was added. The adhesiveness value decreased when salt or egg or oil was added, but increased with sugar; indicating thereby addition of salt or egg produces an increase in the strength and elasticity of the dough, on the other hand, addition of oil decreases the strength and viscosity of the dough. All rights reserved, Elsevier.

Item Type: Article
Uncontrolled Keywords: BREAD-; DOUGH-; EGGS-; GROUNDNUT-OILS; RHEOLOGICAL-PROPERTIES; SALT-; SUGAR-; BREAD-DOUGH; INGREDIENTS-
Subjects: 600 Technology > 08 Food technology > 14 Physical properties > 03 Rheology
600 Technology > 08 Food technology > 21 Cereals > 04 Wheat
Divisions: Flour Milling Bakery and Confectionary Technology
Depositing User: Food Sci. & Technol. Information Services
Date Deposited: 06 Aug 2008 09:31
Last Modified: 28 Dec 2011 09:57
URI: http://ir.cftri.com/id/eprint/7488

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