A Proton Nuclear Magnetic Resonance Method for the Quantitative Analysis on a Dry Weight Basis of (1→3)-β-D-glucans in a Complex, Solvent-Wet Matrix
Document Type
Article
Publication Date
10-6-2001
Description
Health benefits of the polysaccharide (1→3)-β-D-glucan, reported to induce immunobiological, hypocholesterolemic, and hypoglycemic, effects in humans and animals, have made the isolation, characterization, and assay of a viable glucan product critical. A new analytical method, based on internal standard proton NMR analysis, for the assay of solvent-wet samples containing (1→3)-β-D-glucan is presented. The method enables glucan identification, provides a solvent-free assay, and improves upon the previous multistep extraction and lyophilization procedure by reducing the 1-2 day analysis time to 1-2 h. NMR offers a rapid method for quantifying the glucan in commercial samples, such as nutraceuticals, as well as industrial samples enabling better evaluation of the efficacy, of these carbohydrates in health-related applications.
Citation Information
Lowman, Douglas W.; and Williams, David L.. 2001. A Proton Nuclear Magnetic Resonance Method for the Quantitative Analysis on a Dry Weight Basis of (1→3)-β-D-glucans in a Complex, Solvent-Wet Matrix. Journal of Agricultural and Food Chemistry. Vol.49(9). 4188-4191. https://doi.org/10.1021/jf010435l PMID: 11559108 ISSN: 0021-8561