title: Egyptian propolis: 1-antimicrobial activity and chemical composition of Upper Egypt propolis.
abstract: The antimicrobial activity of four propolis samples collected from Upper Egypt against Staphylococcus aureus; Escherichia coli and Candida albicans was evaluated. There was a variation in the antimicrobial activity according to the propolis origin. Banisweif propolis showed the highest antimicrobial activity against Staphylococcus aureus, Escherichia coli and Candida albicans, but Fayoum propolis had moderate activity against all tested pathogens. Propolis collected from Assiut and Souhag gave lower antimicrobial activity. Propolis samples were investigated by GC/MS, 71 compounds were identified, 14 being new for propolis. Banisweif propolis is characterized by the presence of 7 caffeate esters and 4 triterpenoids. Fayoum propolis showed the highest amount of lactic acid and the presence of 3 chalcones. But Assiut propolis is characterized by the presence of 4 prenylated coumarates. Souhag propolis is characterized by the presence of 5 aliphatic dicarboxylic acids and some other new compounds to propolis.
authors: Department of Parasitology, National Research Center, Dokki, Giza, Egypt. ahmedgaffer@mailer.suc.eun.eg
authors: A G
authors: AG
authors: Hegazi
authors: F K
authors: FK
authors: El Hady
mesh_terms: D000900:Anti-Bacterial Agents; D000890:Anti-Infective Agents / Q000737:chemistry* / Q000494:pharmacology*; D000935:Antifungal Agents / Q000737:chemistry / Q000494:pharmacology; D002176:Candida albicans / Q000187:drug effects*; D002264:Carboxylic Acids / Q000737:chemistry / Q000302:isolation & purification; D004224:Diterpenes / Q000737:chemistry / Q000302:isolation & purification; D004534:Egypt; D004926:Escherichia coli / Q000187:drug effects*; D008826:Microbial Sensitivity Tests; D011429:Propolis / Q000737:chemistry* / Q000494:pharmacology*; D013211:Staphylococcus aureus / Q000187:drug effects*; D014315:Triterpenes / Q000737:chemistry / Q000302:isolation & purification
chemical_list: D000900:Anti-Bacterial Agents; D000890:Anti-Infective Agents; D000935:Antifungal Agents; D002264:Carboxylic Acids; D004224:Diterpenes; D014315:Triterpenes; D011429:Propolis