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Effect of native and germinated finger millet flour on rheological and sensory characteristics of biscuits.

Crassina, A. Shimray and Sheetal, Gupta and Venkateswara Rao, G. (2012) Effect of native and germinated finger millet flour on rheological and sensory characteristics of biscuits. International Journal of Food Science and Technology, 47. pp. 2413-2420.

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Abstract

Wheat flour was replaced with native finger millet flour (NFMF) and germinated finger millet flour (GFMF) at 30–50% levels to make soft dough biscuits. Dough rheological properties and baking characteristics of the blends were evaluated. Farinograph data of wheat flour replaced with NFMF and GFMF showed a decrease in water absorption, dough stability and an increase in mixing tolerance index as the level of replacement increased. Extensibility of dough decreased for both NFMF and GFMF as the levels increased. The hardness of biscuit dough measured by texture profile analysis increased from 125 to 234 N for NFMF and 118 to 126 N for GFMF. Scanning electron microscopic studies on the biscuit dough showed polygonal finger millet starch granules adhering to wheat starch granules and protein matrix. The results of the study indicated that the replacement level of 40% with either NFMF or GFMF produced biscuits with acceptable sensory attributes. Addition of sodium stearoyl-2-lactylate (SSL) showed further improvement in terms of spread ratio, surface characteristics and texture.

Item Type: Article
Uncontrolled Keywords: Biscuit making characteristics, germinated finger millet flour, native finger millet flour, rheology, scanning electron microscope, sodium stearoyl-2-lactylate.
Subjects: 600 Technology > 08 Food technology > 14 Physical properties
600 Technology > 08 Food technology > 21 Cereals > 05 Ragi (Finger Millet)
600 Technology > 08 Food technology > 26 Bakery products
Divisions: Flour Milling Bakery and Confectionary Technology
Depositing User: Food Sci. & Technol. Information Services
Date Deposited: 27 Nov 2012 06:00
Last Modified: 01 Jul 2015 11:58
URI: http://ir.cftri.com/id/eprint/11053

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