Separation and Purification of Soluble Polymers and Cell Wall Fractions from Wheat, Rye and Hull less Barley Endosperm Flours for Structure-Nutrition Studies

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Abstract

The nutritional values associated with the cell walls of cereal endosperm flours are due to a combination of
solubilized arabinoxylan and (1-3,1-4)-β-D-glucan as well as residual nonsolubilized cell wall material. In order to investigate
structure-nutrition relationships, an appropriate method for the complete functional and structural characterization of cell wall
polysaccharides in various cereal endosperm flours is described. This involves the separation of soluble polymers and the residual
cell wall fraction without using organic solvents, and the fractionation of soluble polymers into arabinoxylan- and (1-3,1-4)-β-Dglucan-rich fractions for subsequent analysis. This methodology is applied to endosperm flours from wheat, hull-less barley and
rye, and could be extended to include studies on the effects of food processing with respect to yield and characteristics of the
three fractions in order to better understand the structural basis for nutritional functionality.
Original languageEnglish
Pages (from-to)12111
Number of pages12122
JournalJournal of Agricultural and Food Chemistry
Volume61
Issue number49
Publication statusPublished - 2013

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