Studies on Phytochemical Analysis and Antimicrobial Activity of Sargassum Wightii

Abstract

Introduction: Seaweeds are natural sources rich in active compounds used extensively by cultivating the
weeds to cure various ailments. Sargassum wightii is distributed in coastal areas, especially in tropical
regions.
Materials and Method: Seaweeds are collected from coastal area of Tamil Nadu and screened for
phytochemical analysis by Evans method, total phenol content by Folin-Ciocalteau colorimetric method and
antibacterial activity were performed by the well diffusion method.
Results: S.wightii was extracted in the ratio of 1:10 and phytochemical analysis of ethyl acetate extract
showed the presence of various secondary metabolites. The S.wightii crude extract was screened for
antimicrobial activity and showed good zone of inhibition against human pathogens.
Conclusion: S.wightii is a potent antimicrobial drug as it shows a good zone of inhibition against the harmful
pathogens and the secondary compound screening proves the activity. So the S.wightii can be cultivated
more and can be used for clinical purpose without any side effects.