molecular entity fucoidan Fucoidan is a sulfated polysaccharide (MW: average 20,000) found mainly in various species of brown seaweed such as kombu, limu moui,bladderwrack, wakame, mozuku, and hijiki (variant forms of fucoidan have also been found in animal species, including the sea cucumber). Helen Parkinson fucoidan http://en.wikipedia.org/wiki/Fucoidan metadata complete