• Subha Priya
• M .Balasubramanian

Abstract: Objective: Phytochemical is naturally present in the seaweeds which biologically play a significant role. The intention of this study was designed to screen the phytochemical constituents and antioxidant potential of selected seaweed (Sargassum natans) collected from Rameshwaram Southern coast of India. Methods: The present study investigated the presence of phytochemical constituents and also antioxidant activity such as DPPH and reducing power assay in seaweed. Sargassum natans were extracted with solvents having different polarities like methanol and ethyl acetate extract. Results: The seaweed Sargassum natans showed the maximum number of active constituents in the methanol extract when compared to ethyl acetate extract. The DPPH scavenging activity of methanol extracts shows 153.01µg and 178.76 µg in reducing power assay. Conclusion: The crude extract of seaweed manifest preferable phytochemical and antioxidant activities, hence in the future, it would be good if it is further taken for treatment of human diseases or as new antimicrobial agents to replace synthetic antimicrobial agents.

Seaweed, DPPH, Reducing power assay, Sargassum natans

"Qualitative Phytochemical Analysis and Antioxidant Studies of Marine algae Sargassum natans from Rameshwaram Tamil Nadu", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.8, Issue 3, page no.2438-2448, March-2021, Available :http://www.jetir.org/papers/JETIR2103304.pdf

"Qualitative Phytochemical Analysis and Antioxidant Studies of Marine algae Sargassum natans from Rameshwaram Tamil Nadu", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.8, Issue 3, page no. pp2438-2448, March-2021, Available at : http://www.jetir.org/papers/JETIR2103304.pdf