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Cell proliferative and scavenging activity of exopolysaccharides. Cell proliferation was carried out in peripheral blood mononuclear cells by MTT assay while scavenging activity by DPPH assay. Proliferative index is the ratio of absorbance of the concanavalin A/exopolysaccharides treated and untreated cells. Bars which share the common (upper and lower case) letter among the treatments are not significantly different at p < 0.05
