“…(B) Some workers have looked for new sources of antimicrobial compounds in vegetable material from the sea, for example from marine algae (Caccamese and Auolina, 1979;Debro and Ward, 1979;Biard et al, 1980;Higgs, 1981;De Silva et ul., 1982;Gonzdlez et al, 1982Gonzdlez et al, , 1983Findlay and Patil, 1984;Nicod et al, 1985;Rodnguez-Iglesias and Mira-GutiCrrez, 1987;Benlismane et al, 1988;Hiroshi Kakisawa et al, 1988). The variety and novelty of compounds obtained has excited interest because of the possibility that they may exhibit novel mechanisms of action.…”