ISOLATION OF POLYSACCHARIDES WITH ANTITUMOR-ACTIVITY FROM BAMBOO GRASS SASA-KURILENSIS (FR. ET SAR.)

Two polysaccharide preparations, GK1 and GK2, were isolated from the l eaves of the bamboo grass, Sasa kurilensis (Fr. et Sar.) by fractional precipitation of leaf hemicelluloses B with Fehling's reagent. Both f ractions had the antitumour effect on the growth of Sarcoma 180 implan ted in mice, at the doses of 100 mg/kg given ten times with no signs o f toxicity in mice.