Assessment of In Vitro antioxidant activity and phytochemical constituents of Amphora caffeaeformis Microalgae

Abstract

The study aims to examine in vitro antioxidant activity of the extract of the brown microalga Amphora coffeaeformis. Antioxidant activity was evaluated by three methods: free radical scavenging, determination of total phenolic compounds and determination of total flavonoid content. The total content of phenol and flavonoid in the extract was determined as gallic acid equivalent, and rutin equivalent, respectively. The present study shows that tested algae aquatic extract demonstrated relatively strong antioxidant activity. It suggests that this microalga may be used as a good source of the natural antioxidant agent.