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Article Abstract
A novel water-soluble polysaccharide from Pleurotus eryngii residue was isolated and further purified by DEAE cellulose-52 chromatography and Sephadex G-100 size-exclusion chromatography to yield PEPE-1, PEPE-2 and PEPE-3. Molecular weights were determined by high-performance size-exclusion chromatography (HPSEC). Gas chromatography (GC) analysis of monosaccharide composition confirmed that PEPE-1, PEPE-2 and PEPE-3 were heteropolysaccharides and mainly composed of glucose. Sulfate and uronic acid content, ultraviolet and infrared spectrum were also evaluated. The antitumor activities of the polysaccharides against HepG-2 cells were studied in vitro. Results showed that the three polysaccharides could suppress the proliferation and enhance lactate dehydrogenase (LDH) release of HepG-2 cells in a dose- and time-dependent manner. The effect increased in the order of PEPE-1
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http://dx.doi.org/10.1016/j.carbpol.2014.07.069 DOI Listing Publication Analysis
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