Antibacterial Activity of the Essential Oil of <i>Lippia oreganoides</i> against Multiresistant Bacterial Strains of Nosocomial Origin

Velasco, Judith; Rojas, Janne; Salazar, Poema; Rodríguez, Mariseg; Díaz, Tulia; Morales, Antonio; Rondón, María

doi:10.1177/1934578x0700200117

Cited by 24 publications

(16 citation statements)

References 20 publications

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“…Both chemotypes are found in Brazil and Venezuela, countries neighboring Colombia. Their high antimicrobial activity 15, 27 could be attributed to their major compounds, carvacrol and thymol. However, to our knowledge, L. origanoides chemotype A has not been reported to this date in other countries.…”

Section: Resultsmentioning

confidence: 99%

Lippia origanoides chemotype differentiation based on essential oil GC‐MS and principal component analysis

Stashenko

Martı́nez

Ruiz

et al. 2010

J of Separation Science

118

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Chromatographic (GC/flame ionization detection, GC/MS) and statistical analyses were applied to the study of essential oils and extracts obtained from flowers, leaves, and stems of Lippia origanoides plants, growing wild in different Colombian regions. Retention indices, mass spectra, and standard substances were used in the identification of 139 substances detected in these essential oils and extracts. Principal component analysis allowed L. origanoides classification into three chemotypes, characterized according to their essential oil major components. Alpha- and beta-phellandrenes, p-cymene, and limonene distinguished chemotype A; carvacrol and thymol were the distinctive major components of chemotypes B and C, respectively. Pinocembrin (5,7-dihydroxyflavanone) was found in L. origanoides chemotype A supercritical fluid (CO(2)) extract at a concentration of 0.83+/-0.03 mg/g of dry plant material, which makes this plant an interesting source of an important bioactive flavanone with diverse potential applications in cosmetic, food, and pharmaceutical products.

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Section: Resultsmentioning

confidence: 99%

Lippia origanoides chemotype differentiation based on essential oil GC‐MS and principal component analysis

Stashenko

Martı́nez

Ruiz

et al. 2010

J of Separation Science

118

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“…Antimicrobial method: The antimicrobial assay was carried out according to the disc diffusion method described by Rondón et al [11], as reported in our earlier publication [12].…”

Section: Methodsmentioning

confidence: 99%

Essential Oil Composition and Antibacteral Activity of Vismia Baccifera Fruits Collected from Mérida, Venezuela

Rojas

Buitrago

Rojas

et al. 2011

Natural Product Communications

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The essential oil from the fruits of Vismia baccifera Triana & Planch. (Gutttiferae), collected in June 2009, was analyzed by GC/MS. A yield of 0.6% oil was obtained by hydrodistillation. Twenty-seven components were identified by comparison of their mass spectra with those in the Wiley GC-MS Library data base. The major components were trans-cadin-1,4-diene (36.6%), cis-cadin-1,4-diene (18.8%) and β-caryophyllene (11.9%). The essential oil showed a broad spectrum of antibacterial activity against the important human pathogenic Grampositive and Gram-negative bacteria Staphylococcus aureus (ATCC 25923), Enterococcus faecalis (ATCC 29212), Escherichia coli (ATCC 25992), Pseudomonas aeruginosa (ATCC 27853) and Klebsiella pneumoniae (ATCC 23357) with MIC values ranging from 9 to 37 µg/mL.

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“…Actividad antibacteriana.-La actividad antibacteriana fue evaluada de acuerdo al método de difusión en agar con discos descrita por Velasco et al (2007), los ensayos se realizaron por duplicado.…”

Section: Análisis De Composición Químicaunclassified

Composición química y actividad antibacteriana del aceite esencial de Peperomia acuminata de los Andes venezolanos

Mora-Vivas¹,

Velasco²,

Díaz³

et al. 2016

Rev peru biol

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El género Peperomia (Piperaceae), es bien conocido por sus especies ornamentales y usos etnomedicinales. En el presente trabajo se describe la caracterización química y la actividad antibacteriana del aceite esencial de Peperomia acuminata Ruiz & Pav. proveniente del Estado Mérida Venezuela. El aceite esencial se obtuvo por hidrodestilación de las hojas y la separación de los componentes se realizó por Cromatografía de gases-Espectrometría de Masas (CG/EM). Se logró la elucidación de ocho compuestos (96,7%), siendo el 2E-dodecenal el componente mayoritario (65%) seguido de dodecanal (14,8%) y tetradecanal (9,2%). Esta investigación muestra el potencial del aceite esencial de P. acuminata frente a bacterias Gram positivas (Staphylococcus aureus ATCC 25923 y Enterococcus faecalis 29212), con un valor de Concentración inhibitoria mínima de 1μL/mL. Este es el primer reporte sobre la composición química del aceite esencial de esta especie, por lo tanto una contribución importante al estudio del género Peperomia.

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Antibacterial Activity of the Essential Oil of Lippia oreganoides against Multiresistant Bacterial Strains of Nosocomial Origin

Cited by 24 publications

References 20 publications

Lippia origanoides chemotype differentiation based on essential oil GC‐MS and principal component analysis

Lippia origanoides chemotype differentiation based on essential oil GC‐MS and principal component analysis

Essential Oil Composition and Antibacteral Activity of Vismia Baccifera Fruits Collected from Mérida, Venezuela

Composición química y actividad antibacteriana del aceite esencial de Peperomia acuminata de los Andes venezolanos

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