title: Phytochemical composition and antimicrobial activities of the essential oils and organic extracts from Pelargonium graveolens growing in Tunisia.
abstract: BACKGROUND
  Pelargonium graveolens (P. graveolens) L. is an aromatic and medicinal plant belonging to the geraniacea family.
  
  
  RESULTS
  The chemical compositions of the essential oil as well as the in vitro antimicrobial activities were investigated. The GC-MS analysis of the essential oil revealed 42 compounds. Linallol L, Citronellol, Geraniol, 6-Octen-1-ol, 3,7-dimethyl, formate and Selinene were identified as the major components. The tested oil and organic extracts exhibited a promising antimicrobial effect against a panel of microorganisms with diameter inhibition zones ranging from 12 to 34 mm and MICs values from 0.039 to 10 mg/ml. The investigation of the phenolic content showed that EtOAc, MeOH and water extracts had the highest phenolic contents.
  
  
  CONCLUSIONS
  Overall, results presented here suggest that the essential oil and organic extracts of P. graveolens possesses antimicrobial and properties, and is therefore a potential source of active ingredients for food and pharmaceutical industry.
authors.affiliation: College of Science and Arts, Al-Rass, Qassim University, Qassim, Saudi Arabia.
authors.forename: Anis
authors.initials: A
authors.lastname: Ben Hsouna
authors.forename: Naceur
authors.initials: N
authors.lastname: Hamdi
mesh_terms: D000080462:Acyclic Monoterpenes; D000890:Anti-Infective Agents / Q000737:chemistry / Q000494:pharmacology; D001419:Bacteria / Q000187:drug effects*; D005561:Formates / Q000737:chemistry; D008826:Microbial Sensitivity Tests; D039821:Monoterpenes / Q000737:chemistry; D009822:Oils, Volatile / Q000737:chemistry / Q000494:pharmacology; D031316:Pelargonium / Q000737:chemistry; D010936:Plant Extracts / Q000737:chemistry / Q000494:pharmacology; D012717:Sesquiterpenes / Q000737:chemistry; D013729:Terpenes / Q000737:chemistry; D014416:Tunisia
chemical_list: D000080462:Acyclic Monoterpenes; D000890:Anti-Infective Agents; D005561:Formates; D039821:Monoterpenes; D009822:Oils, Volatile; D010936:Plant Extracts; D012717:Sesquiterpenes; D013729:Terpenes; C539285:selinene; C030544:formic acid; C007836:geraniol; C007078:citronellol