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Silica gel TLC chromatograms were eluted with petroleum ether:ethyl acetate:acetic acid (6:1:1). The left chromatogram was generated after spraying with vanillin sulfuric acid reagent and heated at 110 ºC. The right chromatogram was observed in daylight. The 80% MeOH and MeOH algal extracts from left to right are S. trinodis (A1, A2), Sar. acinaciforme (B1, B2), C. sinuosa (C1, C2), I. stellata (D1, D2), P. myrica (2) (E1 E2), P. myrica (1) (F1, F2), respectively.
