It has been reported that seaweed contain high carbohydrate and lack of lignin, which makes them much easier to digest during anaerobic digestion.
I would like to know the order of biodegradability rate among major polysaccharides contained in different seaweeds- green algae (mannan, ulvan, cellulose), red algae (carrageenan, agar), brown algae (laminarin, mannitol, alginate, glucan)?
Thank you
José Avila-Peltroche
For brown algae, the order from highest to lowest is: laminarin>mannitol>alginate
You can check this paper
http://link.springer.com/article/10.1038/sj.jim.7000065
and a thesis called "Biological degradation of brown seaweeds"
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