PurposeTo investigate the isolation and purification, physical-chemical properties and primary in vitro antitumor activities of Ganoderma Lucidum polysaccharides.MethodsHomogeneous Ganoderma Lucidum polysaccharides were isolated through hot water extraction, ethanol precipitation step-by-step and DEAE-32 ion-exchange column chromatography. Their molecular weights were determined by Sephadex G-100 gel filtration chromatography. Saccharide compositions were determined by TLC and GC analysis. In vitro antitumo...