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Abstract

High-performance anion-exchange chromatography with pulsed amperometric detection (HPAEC-PAD) is a widely used technique to study the chain length distribution of amylopectin. The chromatograms, however, do not directly reflect this distribution, since the PAD response changes with the degree of polymerization. In this study, waxy maize starch was debranched and fractionated on a Bio-Gel P-6 column and the response factors for maltosaccharides with DP 3-65 were determined. The detector response per mu g glucan chains was shown to decrease considerably for DP 3-7 while the curve leveled out for DP larger than 15. (C) 1998 Elsevier Science B.V.

Keywords

amylopectin; starch; saccharides

Published in

Journal of Chromatography A
1998, volume: 800, number: 2, pages: 199-206

SLU Authors

UKÄ Subject classification

Food Science
Analytical Chemistry

Publication identifier

  • DOI: https://doi.org/10.1016/S0021-9673(97)01151-5

Permanent link to this page (URI)

https://res.slu.se/id/publ/39610