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Reliable Measurements of the Size Distributions of Starch Molecules in Solution: Current Dilemmas and Recommendations

Michael J. Gidley 1 Isao Hanashiro 2 Norziah Mohd Hani 3 Sandra E. Hill 4 Huber Anton 5 Jane Jay-Lin 6 Qiang Liu 7 Gordon Morris 4 Agnès Rolland-Sabaté 8 André M. Striegel 1 Robert G. Gilbert 1
1 University of Queensland [Brisbane]
2 Faculty of Agriculture
3 University Sains Malaysia
4 Division of Food Sciences
5 Karl-Franzens-Universität [Graz, Autriche]
6 ISU - Iowa State University
7 AAFC - Agriculture and Agri-Food [Ottawa]
8 BIA - Unité de recherche sur les Biopolymères, Interactions Assemblages
Abstract : Characterisation of the distribution functions describing size-related parameters of individual whole starch molecules in solution is important for establishing biosynthesis-processing-structure-property relations, for improvements in human and animal nutrition, and for industrial applications of starch. Current techniques for obtaining these distributions suffer from a number of problems in dissolution procedures, size separation, detection, data processing and data reporting. The need is for techniques that have been shown to give an unbiased sampling of the distribution of the starch in its original state, and which are reproducible (i.e., the same results can be obtained with a given sample in a different laboratory and different experimental set-up). The problems with current methodologies are summarized here by an IUPAC-sponsored international group of specialists in the field. Steps to resolving these problems are also discussed.
Keywords : STARCH SIZE-EXCLUSION CHROMATOGRAPHY FIELD-FLOW FRACTIONATION ANALYTICAL ULTRACENTRIFUGE MULTIPLE-ANGLE LASER LIGHT SCATTERING MOLECULAR WEIGHT METHODOLOGIE
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https://hal.inrae.fr/hal-02658847
Contributor : Migration Prodinra Connect in order to contact the contributor
Submitted on : Saturday, May 30, 2020 - 12:58:45 PM
Last modification on : Monday, May 2, 2022 - 11:10:02 AM

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Michael J. Gidley, Isao Hanashiro, Norziah Mohd Hani, Sandra E. Hill, Huber Anton, et al.. Reliable Measurements of the Size Distributions of Starch Molecules in Solution: Current Dilemmas and Recommendations. Carbohydrate Polymers, Elsevier, 2010, 79 (2), pp.255-261. ⟨10.1016/j.carbpol.2009.07.056⟩. ⟨hal-02658847⟩

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