title: Chemical constituents and antimicrobial activities of the essential oils from Sedum pallidum var. bithynicum and S. spurium grown in Turkey.
abstract: Chemical compositions of the essential oil of Sedum pallidum Bieb. var. bithynicum (Boiss.) and S. spurium Bieb. (Crassulaceae) from Turkey were investigated by GC-MS, and antimicrobial activity of the oil samples were assessed against Gram-positive/negative bacteria and yeast-like fungi. Thirty-eight and thirty-five components were identified in the essential oils and the main components of these species were found to be caryophyllene oxide from S. pallidum var. bithynicum and hexahydrofarnesyl acetone from S. spurium in the ratios of 12.8% and 15.7%, respectively. The isolated essential oils of the plants showed low antimicrobial activity against Gram-negative/positive bacteria and yeast-like fungi, having the MIC values of 500-2000 microg/mL. Antibacterial activity was not observed against Bacillus cereus.
authors.affiliation: Department of Chemistry, Faculty of Arts and Sciences, Karadeniz Technical University, Trabzon, Turkey. yayli@ktu.edu.tr
authors.forename: Nurettin
authors.initials: N
authors.lastname: Yayli
authors.forename: Ahmet
authors.initials: A
authors.lastname: Yaşar
authors.forename: Nagihan
authors.initials: N
authors.lastname: Yilmaz İskender
authors.forename: Nuran
authors.initials: N
authors.lastname: Yayli
authors.forename: Tayyibe Beyza
authors.initials: TB
authors.lastname: Cansu
authors.forename: Kamil
authors.initials: K
authors.lastname: Coşkunçelebi
authors.forename: Şengül
authors.initials: Ş
authors.lastname: Karaoğlu
mesh_terms: D000890:Anti-Infective Agents / Q000737:chemistry* / Q000494:pharmacology*; D005658:Fungi / Q000187:drug effects; D008401:Gas Chromatography-Mass Spectrometry; D006090:Gram-Negative Bacteria / Q000187:drug effects; D006094:Gram-Positive Bacteria / Q000187:drug effects; D008519:Medicine, Traditional; D008826:Microbial Sensitivity Tests; D015394:Molecular Structure; D009822:Oils, Volatile / Q000737:chemistry* / Q000494:pharmacology*; D008517:Phytotherapy; D000081223:Polycyclic Sesquiterpenes; D031963:Sedum / Q000737:chemistry*; D012717:Sesquiterpenes / Q000032:analysis / Q000737:chemistry; D013729:Terpenes / Q000032:analysis* / Q000737:chemistry / Q000494:pharmacology; D014421:Turkey
chemical_list: D000890:Anti-Infective Agents; D009822:Oils, Volatile; D000081223:Polycyclic Sesquiterpenes; D012717:Sesquiterpenes; D013729:Terpenes; C014584:hexahydrofarnesylacetone; C515179:caryophyllene oxide