Abstract

AbstractPentosans were extracted from wheat flour with 15% trichloroacetic acid (TCA) at 2°C. The TCA was extracted with ether and the aqueous solution dialyzed, centrifuged and lyophilized. Subfractions obtained by fractionation on Sepharose 6B and by ammonium sulfate precipitation were analyzed for carbohydrates, protein and hydroxyproline. The pentosans contained a high molecular weight component having only arabinose and galactose as monosaccharides, and 4.4% protein, of which 3% w/w was hydroxyproline.

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