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Antioxidant and antimicrobial properties of aqueous extract from Dictyophora indusiata.

The antioxidant and antimicrobial properties of hot water extract (WE) obtained from Dictyophora indusiata were investigated. The free radical scavenging ability of WE on DPPHwas 97.35% at 2 mg/ml concentration. The reduc- ing power of WE was moderate (1.22 at 2 mg/ml). Similarly, the WE displayed average scavenging effect on hydroxyl radical (52.28% at 2 mg/ml) and superoxide anion scavenging effect (48.64% at 2 mg/ml). However, the WE exhibited a very weak ferrous ion chelating effect of 18.56% at 2mg/ml concentration. Antimicrobial assay revealed that WE from D. indusiata can inhibit both bacteria and fungi used as indicators for antimicrobial effect at concentration of 200 mg/ml. The results suggest that WE possess good antioxidant and antimicrobial properties.