A number of brown (Pheophyta) and green (Chlorophyta) seaweeds have been collected from the littoral of Tenerife (Canary Islands) and extracts from them have been studied for antibacterial and antifungal activity.Three different solvents, n-hexane, ethyl acetate and methanol have been used to obtain extracts from the Phaeophyta: Sargassum desfontainesii (Turner) C. Agardh, Halopteris scoparia (Linnaeus) Sauvageau and Stypopodium zonale (Lamouroux) Papenfuss; and the Chlorophyta: Codium intertextum (Collins et Hervey) and Ulua rigida (Clemente) C. Agardh. The activity of the extracts was tested using Gram-positive, Gram-negative bacteria and yeasts. The methanol extract showed most antibacterial activity. The extracts were mainly active against bacteria (Gram +) while all the fungi tested proved to be resistant to the extracts of brown seaweeds, however, the methanol extract of Codium intertextum (Chlorophyta) showed considerable action against some yeasts tested.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.