Assessment of the extent of starch dissolution in dimethyl sulfoxide by 1H NMR spectroscopy

Schmitz, Sarah, Dona, Anthony C., Castignolles, Patrice, Gilbert, Robert G. and Gaborieau, Marianne (2009) Assessment of the extent of starch dissolution in dimethyl sulfoxide by 1H NMR spectroscopy. Macromolecular Bioscience, 9 5: 506-514. doi:10.1002/mabi.200800244


Author Schmitz, Sarah
Dona, Anthony C.
Castignolles, Patrice
Gilbert, Robert G.
Gaborieau, Marianne
Title Assessment of the extent of starch dissolution in dimethyl sulfoxide by 1H NMR spectroscopy
Formatted title
Assessment of the extent of starch dissolution in dimethyl sulfoxide by 1H NMR spectroscopy
Journal name Macromolecular Bioscience   Check publisher's open access policy
ISSN 1616-5187
1616-5195
Publication date 2009-05-13
Year available 2008
Sub-type Article (original research)
DOI 10.1002/mabi.200800244
Open Access Status
Volume 9
Issue 5
Start page 506
End page 514
Total pages 9
Place of publication Weinheim, Germany
Publisher Wiley - VCH
Language eng
Abstract Complete dissolution is needed for the separation, characterization, or homogeneous labeling of whole starch molecules. A method is presented to quantify the extent of starch dissolution in DMSO for the first time; it is validated on a commercial rice starch. It is used directly on starch dispersions containing possible undissolved or co-dissolved species. High-amylose maize starches, known to be digested slowly in vivo, only quantitatively dissolve in the presence of high concentrations of an H-bond disrupter, LiBr, although they form clear dispersions at low LiBr concentrations. Starch quantitatively dissolves from waxy rice flours; non-starch components partially co-dissolve but do not interfere with the dissolution quantification.
Formatted abstract
Complete dissolution is needed for the separation, characterization, or homogeneous labeling of whole starch molecules. A method is presented to quantify the extent of starch dissolution in DMSO for the first time; it is validated on a commercial rice starch. It is used directly on starch dispersions containing possible undissolved or co-dissolved species. High-amylose maize starches, known to be digested slowly in vivo, only quantitatively dissolve in the presence of high concentrations of an H-bond disrupter, LiBr, although they form clear dispersions at low LiBr concentrations. Starch quantitatively dissolves from waxy rice flours; non-starch components partially co-dissolve but do not interfere with the dissolution quantification.
Keyword Digestion
Dimethyl sulfoxide (DMSO)
Dissolution
Microgels
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ
Additional Notes Article first published online: 16 DEC 2008

Document type: Journal Article
Sub-type: Article (original research)
Collections: 2010 Higher Education Research Data Collection
Centre for Nutrition and Food Sciences Publications
 
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Created: Thu, 03 Sep 2009, 18:01:48 EST by Mr Andrew Martlew on behalf of Centre for Nutrition and Food Sciences