NA 172

DIN Standards Committee Principles of Environmental Protection

Project

Algae and algae products - Determination of the uronic acids content of brown seaweed and alginate products; German version EN 18207:2026

Abstract

This document specifies a method for the quantitative determination of total uronic acid content by high performance anion exchange chromatography coupled with pulsed amperometric detection (HPAEC-PAD) after acid hydrolysis of samples for seaweed and seaweed products. It specifies a method for the determination of mannuronic, glucuronic and guluronic acids in brown seaweed and of mannuronic and guluronic acids in alginate products in a single analysis. The sum of the values for the individual uronic acids is used to determine the total uronic acid content.

Begin

2023-03-03

WI

00454018

Planned document number

DIN EN 18207

Project number

17200251

Responsible national committee

NA 172-00-16 AA - Algae and algae products  

Responsible european committee

CEN/TC 454/WG 7 - Product test methods - saccharides, proteins, amino-acids  

draft standard

Algae and algae products - Determination of the uronic acids content of brown seaweed and alginate products; German and English version prEN 18207:2025
2025-07
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