Study on phytochemical properties and antioxidant activities of marine macroalgae Padina tetrastromatica Hauck

Abstract

An abundance of beneficial plant life can be found in aquatic areas, particularly in marine ecosystems. These resources have, therefore, been in use for hundreds of years. Seaweeds have long been closely associated with human life as a source of food, fodder, fine chemicals, fertilizer and pharmaceutically significant drugs. Algae are an important group of organisms with the largest source of biogenic compounds. They are found to possess significant antioxidant and phytochemical activities. The aim of the present study was to investigate the phytochemical and antioxidant activity of active compounds present in the methanol extract of the brown algae, Padina tetrastromatica Hauck. The antioxidant activity of extracts was evaluated by DPPH scavenging activity and Hydroxyl radical-scavenging activity assays. The phytochemical analysis revealed the presence of alkaloids, flavonoids, steroids, saponins, carbohydrates, proteins and phenolic compounds etc.