In biomedicine, much attention has been paid to natural antioxidants and their association with health benefits (1). Many studies have on the biological activities of seaweed have reported it to be a potential source of Chaetomorpha linum, a green seaweed that is widespread in the Mandapam coastal region of the Gulf of Mannar on southeast coast of India. (Class: Ulvophyaceae; Order:
Cladoporales; Family: Cladoporaceae), is mainly used for food, animal feed, and agriculture.