Preparation of brown algae obtained by reducing iodine

The invention relates to provide a method for producing brown algae was reduced iodine or brown algae extract while maintaining the dye components in brown algae. A later raw brown algae material shredding, iodine while holding the dye components in brown algae which is characterized in that the 90 seconds to 300 seconds heat treatment by 90 ° C. to 100 ° C. hot water method for producing a made by reducing brown algae. Further characterized in that extraction with aqueous ethanol of 60% to 100% concentration of the brown algae obtained above, brown algae comprising reduce the iodine while holding the dye components in brown algae manufacturing method of the extract. .FIELD 1