Method for producing monosaccharides from algae

Abstract

A method for producing monosaccharides from algae includes (a) treating algae-containing water using an electrocoagulation device having an iron-based anode to induce flocculation of algae so as to obtain flocculated algae which have a trace amount of iron derived from the iron-based anode, (b) collecting the flocculated algae from the algae-containing water, and (c) subjecting the flocculated algae to an acid hydrolysis reaction in an acid solution to obtain monosaccharides. A liquid-to-solid ratio of a volume of the acid solution to a solid content of the flocculated algae is not less than 12 ml/g. The acid solution has an acid concentration not less than 3% by volume.

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