Vol. 12, Issue 9 (2023)

Marine resources are treasure for the research, since they can synthesize a group of secondary metabolites associated with promising biological activities. Nearly all marine habitats, from the deep sea to surface waters, have been discovered to contain bioactive metabolites. Algae, Fungi, Bacteria etc are the huge source of such bioactive compounds. But utilisation of such compounds still a topic of research as they are not easily absorbable in human bloodstream. These compounds act as reducing agent and forms conjugate with metal oxide, silver, gold, chitosan, zinc and etc. The objective of this chapter was to make readers understand about the marine metabolites including phenolic, flavonoid and carbohydrate which shows significant antimicrobial activity against differential microbes and their efficiency in synthesizing nanoparticles.