Amala jeyakumar J, Karuppusamy Sand Pannerselvam N
Halimeda macroloba (Chlorophyceae) a green alga was subjected for phytochemical analysis by GC-MS and FTIR spectroscopy methods. GC-MS has recorded the presence of eight peaks among them 3,7,11,15-Tetramethyl-2-hexadecen-1-ol (phytol), hexadecanoic acid, N- hexadecanoic acid, 1-Hexyl-2-nitrocyclohexane and β-sitosterol are major compounds. FTIR analysis has down and the presence of various phytochemicals such as alkane, aldehyde, aromatic, methyl and aliphatic compounds . The present study highlighted the presence of phytocompound from the marine alga H.macroloba can be used for biological and pharmacological studies. Keywords: Seaweed, Halimeda macroloba , bioactive compound, GC-MS, FTIR.