A new report of Trichogloea requienii (Montagne) Kutzing from the South Andaman Sea and study of antibacterial activity of extracted compounds from the species

Abstract

The red seaweed <em>Trichogloea requienii</em>, Rhodophyta: Liagoraceae is being reported from the coast of South Andaman for the first time. The species was collected from the coast of Brookshabad, South Andaman, Andaman and Nicobar Islands, India. The crude ethanolic extract of the species was screened for antibacterial activity against six selected human pathogens such as <em>Escherichia coli, Staphylococcus aureus</em>,<em> Pseudomonas aeruginosa, Proteus mirabilis, Enterococcus faecalis </em>and<em> Micrococcus luteus </em>by in-vitro assay. The results suggested that the algal extract gives promising effect with a maximum zone of inhibition on <em>S. aureus </em>(42 mm) followed by <em>P. aeruginosa</em> (30 mm) and <em>P. mirabilis </em>(25 mm). No zone of inhibition was observed with <em>E.coli, E. faecalis</em> and <em>M. luteus</em>. The seaweed species <em>T. requienii </em>can be a potential source of bioactive compounds for pharmaceutical application.