How to quantify Ulvan in an aqueous extract of Ulva seaweed (colorimetric or any other method)?

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For culturing seaweeds, culture containers need to be opened with aeration or closed with aeration?

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Andy Qarri

Hi Leor,

the analysis of ulvan structure is based on the quantitative determination of the major constituent monosaccharides (iduronic acid, rhamnose, xylose and glucuronic acid) and degree of sulfation. For sulfation is most commonly carried out using a turbidimetric assay but can be also measured using HPLC.

Leor Korzen

greetings,

I would like to differentiate the ulvan fraction from any impurities, such as free sugars, starch, and amorphous cellulose, which might be extracted as well. Any Idea?

Thanks