Figure 5: (a) Gas chromatogram of methanol extract of Cladophora rupestris (1) phenol, 2,4-bis (1,1-dimethylethyl), (2) z, z-6,28-heptatriactontadien-2-one, (3) z, z-6,28-heptatriactontadien-2-one. (b) Gas chromatogram of chloroform extract of Chaetomorpha aerea, (4) z, z-6,28-heptatriactontadien-2-one, (5) z, z-6,28-heptatriactontadien-2-one