The low-molecular chemical material and its production method of the sulphation polysaccharide which held down the disconnection of the sulfuric acid basis

摘要

P To provide a production method of low molecular fucoidan which can be carried out at a low cost, in a short time, is easy in the molecular weight control and is high in the sulfate group retention after the lowering of the molecular weight and to provide a low molecular fucoidan obtained by the method. PSOLUTION: The production method of a low molecular fucoidan accompanying no release of a sulfate group according to the present invention is characterized by retaining an aqueous solution of fucoidan under a hydrothermal condition causing no release of the sulfate group, a method which is characterized in retaining an aqueous solution of fucoidan ON a hydrothermal condition causing no release of the sulfate group after adjusting pH of the aqueous solution of fucoidan to be nearly neutral to alkaline, and a low molecular fucoidan obtained by these methods and are provided. PCOPYRIGHT: (C)2009 and JPO& INPIT