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Antioxidant activities of polysaccharides from Lentinus edodes and their significance for disease prevention
Authors:Chen Huoliang  Ju Ying  Li Junjie  Yu Min
Institution:a School of Military Preventive Medicine, Fourth Military Medical University, Xi’an 710032, China
b Tangdu Hospital, Fourth Military Medical University, Xi’an 710032, China
c Xijing Hospital, Fourth Military Medical University, Xi’an 710032, China
Abstract:The crude polysaccharide (LEP) was extracted by hot water from the fruiting bodies of Lentinus edodes, and further purified by DEAE-cellulose and Sepharose CL-6B chromatography, giving three polysaccharide fractions coded as LEPA1, LEPB1 and LEPC1. In this study, their chemical and physical characteristics of polysaccharide fractions and antioxidant capacities, including scavenging activity against hydroxyl radicals, superoxide radicals and Fe2+-chelating ability, were valuated. The results showed that LEPC1 exhibited significantly antioxidant activity at a concentration-dependent manner. Therefore these results indicated that the water-extractable polysaccharide fraction was a potent antioxidant and could be developed to be new health medicine for fighting against various human diseases.
Keywords:Lentinus edodes  Polysaccharide  Antioxidant activity  Disease prevention
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