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NALDC Record Details:
Disulfide bonds: key to wheat protein functionality
Permanent URL:
http://handle.nal.usda.gov/10113/28260
File:
Download [PDF File]
Abstract:
Disulfide bonds in wheat proteins are major factors that determine the properties of the proteins and their functionality in wheat flour. The gliadin proteins contain mostly intramolecular disulfide bonds. In contrast, the high-molecular-weight glutenins are formed by disulfide linkages of several diverse polypeptide chains which have been separated and characterized. The linkage of these proteins in a fairly linear array contributes to the unique viscoelastic properties of glutenin. The glutenin has been separated into two fractions differing in molecular weight. The amount of highest molecular weight component is correlated with the rheological behavior of the flours from different wheat varieties. Various oxidizing and reducing agents are widely used to alter the functional behavior of wheat proteins by the action on sulfhydryl and disulfide groups.
Author(s):
Huebner, F.R.
,
Bietz, J.A.
,
Wall, J.S.
Note:
20090425 20090508 00000000
Source:
Advances in experimental medicine and biology 1977, 86A
Language:
English
Year:
1977
Collection:
Journal Articles, USDA Authors, Peer-Reviewed
Rights:
Works produced by employees of the U.S. Government as part of their official duties are not copyrighted within the U.S. The content of this document is not copyrighted.