Method of preparing glucan having antitumor activity
OwnerMamoru Sugiura, Hiroyuki Ohno +2inventors
InventorsMamoru Sugiura, Hiroyuki Ohno, Yutaro Sasaki, Kazuaki Hama
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Abstract
A simple glucan has the repeating unit structure ##STR1## and has a mean molecular weight of about two million. It is produced by culturing mycelia of Coriolus Versicolor Iwade FERM-P No. 2743, and subjecting the cultured medium to hot water extraction, ethanol precipitation, aqueous sodium acetate elution and ion exchange.
Claims1
A method of producing a glucan having a basic repeating unit structure ##STR4## and an estimated molecular weight of about two million, comprising culturing mycelia of Coriolus Versicolor Iwade FERM-P No. 2743 in a culture medium for Basidiomycetes, and recovering said glucan from the culture medium by subjecting the culture medium to hot water extraction, ethanol precipitation, aqueous sodium acetate elution and ion exchange.
Dependencies are inferred from the claim text.