Antioxidant Potential of White Oyster Culinary-Medicinal Mushroom, Pleurotus florida (Higher Basidiomycetes)

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Abstract
The present work was focused to evaluate in vitro antioxidant of Pleurotus florida. The hydroethanolic extract was prepared by macerating basidiocarp with water:ethanol (1:1). The antioxidant potential was evaluated by 1,1-diphenyl-2-picryl-hydrazyl (DPPH) radical scavenging activity, reducing power, chelating effects on ferrous ions, total antioxidant capacity, and lipid peroxidation inhibitory activity. Further total flavonoid and phenolic content was also estimated. The comparison between different antioxidant assays was done by correlation coefficient. The results from the antioxidant assays showed that hydroethanolic extract (HEE) might act as radical scavenger to a certain extent. The distinct scavenging activities of HEE can be due to the diverse phytochemical constituents. Being a rich source of antioxidants, P. florida can be used as an accessible source of natural antioxidants with consequential health benefits.