• Celignis Analysis Package
    P15 : Uronic Acids

Uronic acids are sugars where the CH2OH group has been oxidised to form a carboxylic acid group. Uronic acids play important functions in nature and exist in varying amounts and proportions in different biomass types. Click here to learn more about uronic acids and their abundance in nature.

We are able to determine the contents of five different uronic acids: glucuronic acid, 4-O-Methyl-D-Glucuronic Acid, galacturonic acid, mannuronic acid, and guluronic acid.

We can determine the uronic acid composition of lignocellulosic biomass, seaweed, and liquids. This analysis package is suitable for the analysis of the uronic acid composition of liquid samples. In order for you to use this package to determine the uronic acid composition of non-seaweed biomass samples it will be necessary to first obtain a hydrolysate suitable for analysis. Examples of analysis packages that will produce such a hydrolysate from biomass include "P7 - Lignocellulosic Sugars", "P9 - Lignocellulosic Sugars and Lignin", and "P10 - Sugars, Lignin, Extractives, Ash".

If you are interested in the uronic acid composition of seaweed then please refer to our seaweed analysis packages.

If you are interested in us determining the concentrations of different uronic acids than the five we currently analyse then please get in touch and we will try to develop a custom analytical method for you.

Constituents Determined

For every constituent determined via wet-chemical analysis each sample is analysed in duplicate and we provide the compositional data for each replicate along with the average value and the standard deviation between the duplicates. Our analytical protocols typically provide results with a high level of precision, as detailed here.

Examples of the data reports generated can be viewed on the Celignis Database. Please log on to the guest account using email "test@celignis.com" and password "celignis".

Click here to place an order for determining Uronic Acids.

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Equipment Used for Uronic Acids Analysis

Ion Chromatography

A Dionex ICS-3000 system that is equipmed with electrochemical, conductivity, and ultraviolet-visible detectors.