The bioactive compounds and microbial endophytes from brown seaweed as antibacterial for aquaculture disease management: A review

Abstract

Brown seaweed contain bioactive compounds such as flavonoids, steroids, triterpenoids, alkaloids, saponins, tannins that have antimicrobial potential. The use of brown seaweed extract in several studies has reported that brown seaweed extract has a capability to inhibit the activity of bacteria such as S. aureus and Pseudomonas aeruginosa and Klebsiella pneumoniae bacteria, these bacteria are bacteria that attack aquatic organisms such as fish. Endophytic microbes associated with seaweed such as bacteria and fungi are thought to be able to produce the same bioactive compounds as their host, seaweeds. Several studies have also shown that the antibacterial activity of endophytic microbes can inhibit pathogenic bacteria. Most of results showed that the extract of brown seaweed could inhibit the pathogens ranged moderate to strong category.