In-Vitro Antibacterial activity and Preliminary Phytochemical Screening of five Seaweeds from Mandapam Coast, Tamil Nadu, India

Kavitha and Sheela

Phytochemical analysis | Antibacterial activity

Vol: 3; Iss: 9; Sep 17 | ISSN: 2454-5422

In-vitro antibacterial activity and phytochemical screening of ethanol extracts of five seaweeds (Acanthophora spicifera, Hypnea valentiae, Padina gymnospora, Ulva reticulate and Caulerpa racemosa) from Mandapam coastal region Ramanathapuram were investigated. The seaweeds which were used for present study belongs to red algae, brown algae and green algae. The tested microorganisms for antimicrobial activity were gram positive and gram negative bacteria and fungal pathogen. The tested five seaweeds for phytochemical screening showed positive results for biological active compound such as alkaloids, terpenoids, saponins and phenolic. The antibacterial activity in Acanthophora spicifera ethonal extracts reveled the maximum zone of inhibition against Escherichia coli (20 mm) and minimum zone of inhibition observed in Staphylococcus aureus (14 mm). Our findings provide the evidence that the ethonal extract of five seaweeds indicates the good antimicrobial activity and hence the seaweeds proved to be an effective therapeutic agent.