Method for determining the concentration of beta-D-glucan
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United States of America Patent
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Issued Date -
Aug 8, 2013
app pub date -
Feb 4, 2013
filing date -
Feb 3, 2012
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Abandoned
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Abstract
Method of selectively determining the concentration of beta-glucan in samples, in particular in liquid samples of cereal origin, and a kit for such analysis. The method comprises the steps of contacting of a beta-glucan containing sample and a dye in liquid phase, complexing the beta-glucan with the dye to provide a modified liquid phase, measuring photometrically the absorbance of the modified liquid phase, and determining the concentration of beta-glucan based on the absorbance of the modified liquid phase. According to the invention, the dye comprises a Calcofluor dye such as Calcofluor White or Calcofluor White M2R. It has been found that the same reagent, or reagent of the kind basic kind, gives the same result when the sample is measured using photometry as when the dye is used in a reaction wherein fluorescence is measured.
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