Patent ID: 6927289

Claim:
A sulfated fucan oligosaccharide obtainable by the method comprising: allowing a sulfated fucan-digesting enzyme derived from Alteromonas sp. SN-1009 to act on the substance selected from the group consisting of: a sulfated fucan having the following chemical and physical properties: (1) containing fucose as a constituting saccharide; (2) containing a sulfated saccharide of general formula (I) as an essential component of the constituting saccharide: wherein R is H or SO 3 H, at least one of R's is SO 3 H and n is an integer of 1 or more; and (3) being converted into smaller molecules by a sulfated fucan-digesting enzyme derived from Alteromonas sp. SN-1009 to generate at least one compound of general formulas (II), (III), (XIII), (XIV), (XV) and (XVI): wherein R is H or SO 3 H, at least one of R's is SO 3 H in all formulas above, and a sulfated fucan oligosaccharide of general formula (I): wherein R is H or SO 3 H, at least one of R's is SO 3 H and n is 1 to 5; and collecting a digestion product.