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Physicochemical and microstructure analysis of flour mill streams and milled products.

Suresh, D.Sakhare and Aashitosh, A. Inamdar and Indrani, D. and Madhu Kiran, M. H. (2015) Physicochemical and microstructure analysis of flour mill streams and milled products. Journal of Food Science and Technology, 52 (1). pp. 407-414. ISSN 0022-1155

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Abstract

Quality of mill streams is very important for obtaining specialty flour for specific application. In order to have clear picture of distribution of major constituents in the flour mill streams during milling of wheat, the physicochemical and microstructure characteristics of flour mill streams and milled products were studied from the pilot roller flour mill. The result showed wide variation in moisture content, ash (0.42 % to 7.12 %), dry gluten (7.95 % to 9.62 %), damaged starch (4.42 % to 8.10 %), falling number (258 to 372), and sodium dodecyl sulphate (SDS) sedimentation values (41 ml to 61 ml) in different flour mill streams and milled products. Variation in the farinograph water absorption (FWA) was also observed in the flour mill streams ranging from 53.07 % to 62.0 %. Scanning electron microscopic (SEM) images showed that straight run flour (SRF) preserved some characteristics of intact endosperm and consisted of aggregates of broken protein matrix and starch granules embedded in it. In break streams, higher aggregates of starch and protein matrix than the single unaggregated granules were seen and starch granules showed less degree of structural deformation when compared to reduction streams.

Item Type: Article
Uncontrolled Keywords: Wheat flour milling . Millstream . Scanning electron microscopy . Damaged starch
Subjects: 600 Technology > 08 Food technology > 21 Cereals > 04 Wheat
600 Technology > 08 Food technology > 04 Milling
Divisions: Flour Milling Bakery and Confectionary Technology
Depositing User: Food Sci. & Technol. Information Services
Date Deposited: 09 Jan 2015 11:58
Last Modified: 09 Jan 2015 11:58
URI: http://ir.cftri.com/id/eprint/11696

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