Eucalyptus From Mata Experimental Do Escaroupim (Portugal): Evaluation of the Essential Oil Composition From Sixteen Species

Faria, J. A. Brandão; Lima, A. Sofia; Mendes, Marta D.; Leiria, R.; Geraldes, Dinis; Figueiredo, AC; Trindade, Helena; Pedro, LG; Barroso, JG; Sanches, Juliana

doi:10.17660/actahortic.2011.925.7

Cited by 16 publications

(18 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…For some species, duly identified in Table 1, the EO composition was previously reported (Barbosa et al, 2010(Barbosa et al, , 2012Faria et al, 2011). Some species can show several EO chemotypes, such as Thymus caespititius carvacrol, thymol or aterpineol-rich chemotypes (Table 1), which may provide different biological properties.…”

Section: Composition Of Essential Oils and Fractions Containing Hydromentioning

confidence: 72%

“…Kong et al (2007) showed that geraniol, thymol, carvacrol and terpinen-4-ol possessed strong nematicidal properties and (À)-caryophyllene oxide, (+)-ledene, (+)-limonene, (À)-limonene, linalool oxide, b-myrcene, (À)-a-phellandrene, (+)-a-pinene and c-terpinene were PWN propagation stimulant compounds. (Faria et al, 2011). e Identification based on mass spectra only.…”

Section: Composition Of Essential Oils and Fractions Containing Hydromentioning

confidence: 99%

See 1 more Smart Citation

Bioactivity against Bursaphelenchus xylophilus: Nematotoxics from essential oils, essential oils fractions and decoction waters

et al. 2013

View full text Add to dashboard Cite

a b s t r a c tThe Portuguese pine forest has become dangerously threatened by pine wilt disease (PWD), caused by the pinewood nematode (PWN), Bursaphelenchus xylophilus. Synthetic chemicals are the most common pesticides used against phytoparasitic nematodes but its use has negative ecological impacts. Phytochemicals may prove to be environmentally friendly alternatives. Essential oils (EOs) and decoction waters, isolated from 84 plant samples, were tested against B. xylophilus, in direct contact assays. Some successful EOs were fractionated and the fractions containing hydrocarbons or oxygen-containing molecules tested separately. Twenty EOs showed corrected mortalities P96% at 2 lL/mL. These were further tested at lower concentrations. Ruta graveolens, Satureja montana and Thymbra capitata EOs showed lethal concentrations (LC 100 ) < 0.4 lL/mL. Oxygen-containing molecules fractions showing corrected mortality P96% did not always show LC 100 values similar to the corresponding EOs, suggesting additive and/or synergistic relationships among fractions. Nine decoction waters (remaining hydrodistillation waters) revealed 100% mortality at a minimum concentration of 12.5 lL/mL. R. graveolens, S. montana and T. capitata EOs are potential environmentally friendly alternatives for B. xylophilus control given their high nematotoxic properties. Nematotoxic activity of an EO should be taken in its entirety, as its different components may contribute, in distinct ways, to the overall EO activity.

show abstract

Section: Composition Of Essential Oils and Fractions Containing Hydromentioning

confidence: 72%

Section: Composition Of Essential Oils and Fractions Containing Hydromentioning

confidence: 99%

Bioactivity against Bursaphelenchus xylophilus: Nematotoxics from essential oils, essential oils fractions and decoction waters

et al. 2013

View full text Add to dashboard Cite

show abstract

“…EOs were isolated from fresh aerial parts, collected during the vegetative phase in Portugal ( Table 1 ), and their composition determined as previously described [ 18 ].…”

Section: Methodsmentioning

confidence: 99%

“… SY: Sampling year, PP: Plant part, CP: Collection place. * Essential oils previously isolated and chemically characterized in a Faria et al [ 18 ], b Barbosa et al [ 17 ] and c Sena et al [ 27 ] (detailed composition of this EO in Supplementary Table S1 ). FV–fresh, vegetative-phase aerial parts, MEE: Mata Experimental do Escaroupim arboretum (Salvaterra de Magos, Portugal).…”

Section: Figurementioning

confidence: 99%

Antibacterial, Antioxidant, and Antiproliferative Activities of Corymbia citriodora and the Essential Oils of Eight Eucalyptus Species

et al. 2018

View full text Add to dashboard Cite

Background: Essential oils (EOs) have shown antimicrobial, antioxidant, and antiproliferative activity, which may, alone or in combination with other substances, potentially be used for the development of new drugs. However, their chemical variability, depending on the species, varieties, or geographical origin (among other factors) determines different bioactivities that need to be evaluated. Methods: The antioxidant activity of Corymbia citriodora and eight Eucalyptus species EOs was determined using two different methods: the scavenging ability of 2,2′-azino-bis(3-ethylbenzothiazoline-6-sulphonic acid) (ABTS+•) and peroxyl free radicals or oxygen radical absorbance capacity (ORAC). Antibacterial activity was evaluated using the microorganisms Streptococcus pneumoniae (strains D39 and TIGR4), and Haemophilus influenza (strain DSM 9999). The essential oils’ minimum inhibitory concentration (MIC) and minimum bactericidal concentration (MBC) was assessed using a microdilution method. The antiproliferative activity was determined using the THP-1 cell line (human acute monocytic leukaemia) with methylthiazolyldiphenyl-tetrazolium bromide assay (MTT). Results: Corymbia citriodora and Eucalyptus viminalis EOs showed the highest ABTS and peroxyl free radical scavenging capacity. Eucalyptus globulus EO showed a high potential to treat Streptococcus pneumoniae infections. Haemophilus influenzae was the respiratory pathogen that showed the highest resistance to all EOs, including tea tree EO. After 96 h of incubation, at 25 μg/mL, Eucalyptus radiata and Eucalyptus viminalis EOs showed highest cytotoxic activity against the THP-1 cell line. Conclusions: Despite their specific bioactivities, no single EO showed simultaneously good antioxidant, antimicrobial, and antiproliferative activity.

show abstract

“…The essential oils were isolated by hydrodistillation for 3 h using a Clevenger-type apparatus according to the European Pharmacopoeia (CE, 2002). The Eucalyptus species composition in volatiles was reported previously (Faria et al, 2011).…”

Section: Introductionmentioning

confidence: 69%

ANTIBACTERIAL ACTIVITY EVALUATION OF 15 <i>EUCALYPTUS</i> SPECIES ESSENTIAL OILS AGAINST CLINICALLY RELEVANT PATHOGENIC BACTERIA

Días¹,

Pereira²,

Vasconcelos³

et al. 2014

American Journal of Microbiology

View full text Add to dashboard Cite

This study aims to evaluate the potential of 15 Eucalyptus species essential oils as alternatives to clinical surface disinfectants with known association to antibiotic resistance. Four reference pathogenic bacteria were tested: Pseudomonas aeruginosa (ATCC10145), Escherichia coli (CECT434), Staphylococcus aureus (CECT976) and Listeria monocytogenes (ATCC15313). Gram-positive bacteria revealed higher sensitivity than Gram-negative. Essential oils from E. bosistoana, E. botryoides, E. camaldulensis, E. cinerea and E. citriodora showed bacterial inhibition for Gram-positive, even higher than with gentamicin and ciprofloxacin (positive controls). L. monocytogenes was the most sensitive and P. aeruginosa demonstrated resistance to all essential oils. The antimicrobial potential values were 6. 25, 6.25 and 12.5% for E. coli, S. aureus and L. monocytogenes, respectively. This study reveals that Eucalyptus essential oils may be useful in order to control pathogenic bacteria as potential complementary treatment or as disinfectants in clinical/hospital environments.

show abstract

Eucalyptus From Mata Experimental Do Escaroupim (Portugal): Evaluation of the Essential Oil Composition From Sixteen Species

Abstract: The essential oils isolated from the vegetative aerial parts (mature branches with leaves) of 16 Eucalyptus species, grown in Mata Experimental do Escaroupim (Salvaterra de Magos, Portugal) were studied. The essential oils from E.

Cited by 16 publications

References 0 publications

Bioactivity against Bursaphelenchus xylophilus: Nematotoxics from essential oils, essential oils fractions and decoction waters

Bioactivity against Bursaphelenchus xylophilus: Nematotoxics from essential oils, essential oils fractions and decoction waters

Antibacterial, Antioxidant, and Antiproliferative Activities of Corymbia citriodora and the Essential Oils of Eight Eucalyptus Species

ANTIBACTERIAL ACTIVITY EVALUATION OF 15 <i>EUCALYPTUS</i> SPECIES ESSENTIAL OILS AGAINST CLINICALLY RELEVANT PATHOGENIC BACTERIA

Contact Info

Product

Resources

About