6533b857fe1ef96bd12b4e03

RESEARCH PRODUCT

The Determination of Carbohydrates by High-Performance Anion-Exchange Chromatography Coupled with Pulsed Amperometric Detection (HPAEC-PAD)

Stefan JacobChristiane GrünewaldStefan Bohnert

subject

Osmotic stress responseMagnaporthe oryzaeChromatographyIon exchangeChemistrySize-exclusion chromatographySample preparationStandard methodsDirect analysisAmperometry

description

Chromatography techniques are widely used to separate, identify, and quantify molecules depending on their physicochemical properties. Standard methods range from simple size exclusion to separation based on affinity or ion exchange. Here, we present a method for the direct analysis of carbohydrates in Magnaporthe oryzae using high-performance anion-exchange chromatography (HPAEC) coupled with pulsed amperometric detection (PAD). The combination of HPAEC with PAD provides the highest selectivity and sensitivity with minimal sample preparation and cleanup time. Utilizing our HPAEC-PAD approach, we obtain reliable and highly reproducible determination of carbohydrates produced as osmotic stress response by M. oryzae. Thus, the method described provides a fast, precise, and comprehensive analysis of stress-dependent metabolic adjustments of carbohydrates not only relevant for M. oryzae but also applicable in other systems.

https://doi.org/10.1007/978-1-0716-1613-0_4