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Effect of oxidation on the dynamic rheological properties of wheat flour-water doughs

Oxidation increased the strength of the dough. Addition of ascorbic acid or azodicabonamide (ADA) to dough increased both elastic modulus (G') and viscous modulus (G''), while addition of cysteine decreased both values. Hydrogen peroxide, from either calcium peroxide or glucose oxidas...

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Bibliographic Details
Published in:Cereal chemistry 1999-01, Vol.76 (1), p.100-104
Main Authors: Miller, K.A. (Pillsbury Company, Minneapolis, MN.), Hoseney, R.C
Format: Article
Language:English
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Summary:Oxidation increased the strength of the dough. Addition of ascorbic acid or azodicabonamide (ADA) to dough increased both elastic modulus (G') and viscous modulus (G''), while addition of cysteine decreased both values. Hydrogen peroxide, from either calcium peroxide or glucose oxidase, increased G' and G'' and decreased tan delta (G''/G') values. In addition to strengthening the dough, hydrogen peroxide dried the dough, but ADA did not. The absorption of doughs containing 20 GU of glucose oxidase (source of hydrogen peroxide) could be increased by approximately 5% without altering the rheological properties. Presumably, the mobility of water in the gel formed by oxidative gelation decreased, thereby causing a drying of the dough
ISSN:0009-0352
1943-3638
DOI:10.1094/CCHEM.1999.76.1.100