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Magic-Angle 13C NMR Analysis of Hard Wheat Flour and Dough

  • Joel R. Garbow
  • Jacob Schaefer
Part of the Advances in Experimental Medicine and Biology book series (AEMB, volume 302)

Abstract

Samples of hard wheat flour and dough are analyzed by magic-angle spinning 13C NMR spectroscopy. Cross-polarization magic-angle spinning (CPMAS) 13C NMR spectra of the dry flour allow its starch and protein content to be accurately measured. These two components are phase-separated. Spectra of hydrated hard wheat doughs are collected under both CPMAS and single-pulse carbon with low-power 1H decoupling conditions. The former report on the macromolecular components of the dough, while the latter reveal small molecules which are solubilized by the water. Results of the present study are interpreted as indicating that the protein is largely unaffected by the added water and remains phased-separated from the starch, while water causes significant changes in polymer dynamics of the starch component.

Keywords

Nuclear Magnetic Resonance Nuclear Magnetic Resonance Spectroscopy Nuclear Magnetic Resonance Study Hard Wheat Starch Component 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer Science+Business Media New York 1991

Authors and Affiliations

  • Joel R. Garbow
    • 1
  • Jacob Schaefer
    • 2
  1. 1.Physical Sciences Center, Monsanto Corporate ResearchMonsanto CompanySt. LouisUSA
  2. 2.Department of ChemistryWashington UniversitySt. LouisUSA

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