In vitro antioxidant potential of secondary and tertiary growth forms of Salvinia molesta Mitchell
The aquatic weed Salvinia molesta causes adverse ecological disruptions leading to considerable social, ecological and economic damages. It reduces dissolved oxygen content, blocks sunlight reaching the other aquatic species and degrades water quality. The present study was undertaken to evaluate the medicinal properties in particular the antioxidant activity of the plant. Hexane, ethyl acetate, ethanol and methanol extracts of secondary and tertiary growth forms of Salvinia molesta were studied for 1, 1-Diphenyl-2-picrylhydrazyl, hydroxyl, hydrogen peroxide and superoxide anion free radicals scavenging activities. All the four assays showed that the ethanol and methanol extracts of both growth forms were found to have good free radical scavenging activity. The results indicated that this aquatic weed is a potent natural antioxidative therapeutic agent in curing oxidative stress related diseases. Utilization of the plant for pharmaceutical applications involving the isolation and identification of useful phytocomponents responsible for its antioxidant activity would help to control its spread as an invasive species.
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