Effects of Some Algal Extracts on Some Human Pathogenic Fungi

Abstract

The present study aimed to screen antifungal activity of methanol, ethanol, chloroform, cold and hot water extracts of the four selected marine algae, green algae (Ulva lactuca), brown algae (Sargassum denticulatum, Hormophysa triquetra) and red algae (Hypnea cornuta) and one blue-green algae from freshwater (Spirulina platensis) against four pathogenic fungi (Candida albicans, Candida tropicalis, Candida krousei and Candida glabrata). For this study the following steps were done: Sampling program: A-Fresh water alga (Spirulina platensis): The tested blue green alga Spirulina platensis obtained from Stock at Hydrobiology Lab, Qanater Khayria, Qalubia, Egypt. B- Marine algae: The seaweeds collected seasonally for one year (September 2013 to August 2014) from the intertidal zone of the Gulf of Suez. Three algal samples: Ulva lactuca (Chlorophyceae) during spring, Sargassum denticulatum (Phaeophyceae) during autumn and Hypnea cornuta (Rhodophyceae) during winter were taken from Site I (Ras El-Adabiya ) and one algal sample from Site II (Ras Sedr) Hormophysa triquetra (Phaeophyceae) during summer.