title: Effects of myrcia ovata cambess. Essential oil on planktonic growth of gastrointestinal microorganisms and biofilm formation of enterococcus faecalis.
abstract: The essential oil from the leaves of Myrcia ovata Cambess., commonly used in Brazil for the treatment of gastric illnesses, was screened for antimicrobial activity and action in the formation of microbial biofilms by Enterococcus faecalis. The oil was obtained by hydrodistillation using a clevenger-type system. Its chemical composition was analyzed using GC and GC-MS. Both MIC and MBC of the essential oil were determined by broth microdilution techniques and agar dilution method. The essential oil showed antimicrobial activity against E. faecalis, Escherichia coli, Pseudomonas aeruginosa, Salmonella choleraesuis, Staphylococcus aureus, Streptococcus pneumoniae and Candida parapsilosis. The results showed that the essential oil of M. ovata Cambess. was effective against the formation of biofilm by E. faecalis when compared with the control. Four volatile compounds, representing 92.1 % of the oil, were identified and geranial was the major component (50.4 %). At the best of our knowledge, this is the first report of the chemical composition and antimicrobial activity of the essential oil from leaves of M. ovata.
authors.affiliation: Departamento de Patologia e Medicina Legal, Faculdade de Medicina, Universidade Federal do Ceará , Fortaleza, CE , Brasil;
authors.forename: Cinthya S
authors.initials: CS
authors.lastname: Cândido
authors.forename: Cadmo Silton A
authors.initials: CS
authors.lastname: Portella
authors.forename: Bruno J
authors.initials: BJ
authors.lastname: Laranjeira
authors.forename: Sérgio S
authors.initials: SS
authors.lastname: da Silva
authors.forename: Angela M C
authors.initials: AM
authors.lastname: Arriaga
authors.forename: Gilvandete M P
authors.initials: GM
authors.lastname: Santiago
authors.forename: Geovany A
authors.initials: GA
authors.lastname: Gomes
authors.forename: Paulo César
authors.initials: PC
authors.lastname: Almeida
authors.forename: Cibele B M
authors.initials: CB
authors.lastname: Carvalho
keywords: Essential oil; Myrcia ovata Cambess.; antimicrobial activity; biofilms.
references.citation: J Biomed Mater Res A. 2006 May;77(2):406-15
references.pmid: 16444682
references.citation: J Antimicrob Chemother. 1997 Nov;40(5):667-72
references.pmid: 9421314
references.citation: J Endod. 2005 Dec;31(12):867-72
references.pmid: 16306820
references.citation: J Theor Biol. 2007 Dec 21;249(4):826-31
references.pmid: 17936308
references.citation: Clin Infect Dis. 2001 Oct 15;33(8):1387-92
references.pmid: 11565080
references.citation: Int Endod J. 2001 Jun;34(4):300-7
references.pmid: 11482142
references.citation: J Agric Food Chem. 2004 Nov 17;52(23):6932-8
references.pmid: 15537299
references.citation: J Endod. 2005 Jan;31(1):30-6
references.pmid: 15614002
references.citation: Annu Rev Microbiol. 2000;54:49-79
references.pmid: 11018124
references.citation: Mem Inst Oswaldo Cruz. 2002 Oct;97(7):1027-31
references.pmid: 12471432
references.citation: J Clin Microbiol. 1987 Dec;25(12):2378-9
references.pmid: 3429628
references.citation: Diagn Microbiol Infect Dis. 2006 Dec;56(4):421-6
references.pmid: 16876978
references.citation: Microbios. 1997;89(358):39-46
references.pmid: 9218354
references.citation: J Endod. 2002 Oct;28(10):689-93
references.pmid: 12398165
references.citation: J Ethnopharmacol. 2005 Aug 22;100(1-2):80-4
references.pmid: 15964727
references.citation: Bioresour Technol. 2005 May;96(7):813-8
references.pmid: 15607195