“…The microalgal phyla have been recognized to provide compounds with chemical and pharmacological novelty and diversity (Shimizu et al, 1996). Algae are a rich source of therapeutically active components and possess wide range of activities such as antimicrobial (Zbakh et al, 2012), antiviral (Bouhlal et al, 2011), anti-allergic (Na HJ et al, 2005, anti-coagulant (Dayong et al, 2008), anticancer (Kim et al, 2011) and antioxidant activities (Devi et al, 2011). Macroalgae has self-protecting nature against other organisms present in the environment by producing several secondary metabolites such as alkaloids, polyketides, cyclic peptides, phlobatannins, diterpenoids, sterols, quinines and lipids with many biological activities (Al-Saif et al, 2014).…”