Patent ID: 6974576

Claim:
A composition comprising high molecular weight polysaccharides and polysaccharide complexes obtained from Chlorella; wherein the high molecular weight polysaccharides and polysaccharide complexes are about 3×10 5 Da to about 1×10 7 Da and wherein the high molecular weight polysaccharides and polysaccharide complexes of about 3×10 5 Da to about 1×10 7 Da are present in the composition in an amount of at least 22% (w/w) of the composition which is a greater percentage than in a crude Chlorella extract from which the composition is obtained; and wherein the crude extract is obtained by a process consisting of the following steps: (a) treating Chlorella cells with aqueous media for 1 h at 80° C.; (b) subjecting the treated Chlorella cells to centrifugation with a relative centrifugal force of 10,000 g for 20 minutes to remove residual cells and cell debris; and (c) micro-filtering the supernatant obtained from step (b).