Patent ID: 8871217

Claim:
A method for producing a fucoxanthin-enriched seaweed extract, said method comprising: a. contacting one or more seaweeds with an alcohol-water extraction solvent to obtain a fucoxanthin extract, and b. passing the obtained fucoxanthin extract through an absorbent that absorbs the fucoxanthin extract, then eluting the absorbent with an alcohol-water solution, whereby the content of heavy metals and arsenic salt are reduced and the content of the fucoxanthin is increased in the eluded seaweed extract, wherein the absorbent is selected from the group consisting of macroporous resin, polyamide, alumina, or an appropriate combination thereof, wherein the seaweeds are raw materials selected from the group consisting of kelp, gulfweed, fucus, Endarachne binghainize, Cystin, Chorda filum, Undaria pinnatifida, giant kelp, carrageen, Sargassum kjellmanianum Yendo, Sargassum fusiforme, and Sargassum pallidum; and wherein the steps of a and b are not performed in a shaded environment.