Fucoidan
Fucoidan (English name: fucoidan) is a type of sulfate polysaccharide. It is a dietary fiber which is rich in mucilage of brown algae such as konbu and seaweed (including mechabu which is a part) and Mozuku. Similar substances have also been found in animals such as sea cucumbers. It is a compound in which L-fucose (polysaccharide) is mainly composed of α1-2, α1-4 bonds and several tens to hundreds of thousands are connected, and the average molecular weight is about 200,000. U-fucoidan including glucuronic acid, F-fucoidan consisting only of sulfated fucose, G-fucoidan containing galactose, and the like. Unlike mushrooms (such as Agaricus) and other polysaccharide (sugar chain) components, L-fucose has a sulfate group bonded to fucose. It is often contained in brown algae (Mozuku, Mekabu, Kombu, Akamoku, Umitrano etc etc) and is often expressed as a sticky component of seaweed as an easy-to-understand expression means. There are also reports that it is more frequent in reproductive organs thanks to studies on Akamoku. Sometimes it is erroneously called "fukodain". ...