Chemical composition and antibacterial activity of the essential oil from Eucalyptus pellita F. Muell.

Proenza, Yaicel G.; Rol,; Álvarez, Ortega; Tamayo, Yosvel Viera; Saavedra, Manuel Almeida; Garcia, Yarima Sanchez; Espinosa, Robinson Hermosilla

doi:10.5897/jmpr12.349

Cited by 8 publications

(2 citation statements)

References 12 publications

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“…Eucalyptus leaf oils have received attention in a number of studies (Elaissi et al, 2012;Proenza et al, 2013).…”

Section: Table 2 the Main Components Identified In The Essential Oilmentioning

confidence: 99%

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LIQUID AND VAPOUR PHASE ANTIBACTERIAL ACTIVITY OF <i>EUCALYPTUS GLOBULUS</i> ESSENTIAL OIL = SUSCEPTIBILITY OF SELECTED RESPIRATORY TRACT PATHOGENS

Nadjib¹,

Amine²,

Kameli³

et al. 2014

American Journal of Infectious Diseases

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Essential Oils (EO) produced by medicinal plants have been traditionally used for respiratory tract infections and are used nowadays as ethical medicines for colds. Although several studies of Eucalyptus Globulus Labill. Essential Oil (EGEO) have been reported, there are no reports describing vapour activity of EGEO against bacterial respiratory tract pathogens. The aim of this study was to test the efficacy of the Algerian EGEO against some respiratory tract pathogens by disc diffusion and vapour diffusion methods at different concentrations. Chemical composition of the EGEO was analysed by Gas Chromatography-Mass Spectrometry. Fresh leaves of E. globulus on steam distillation yielded 0.96% (v/w) of essential oil whereas the analysis resulted in the identification of a total of 11 constituents, 1.8 cineole (85.8%), α-pinene (7.2%) and β-myrcene (1.5%) being the main components. By disc diffusion method, EGEO showed potent antimicrobial activity against Gram-positive more than Gram-negative bacteria. The Diameter of Inhibition Zone (DIZ) varied from 69 mm to 75 mm for Staphylococcus aureus and Bacillus subtilis (Gram +) and from 13 to 42 mm for Enterobacter sp and Escherichia coli (Gram-), respectively. However, the results obtained by both agar diffusion and vapour diffusion methods were different. Significantly higher antibacterial activity was observed in the vapour phase at lower concentrations. A. baumanii and Klebsiella pneumoniae were the most susceptible strains to the oil vapour with DIZ varied from 38 to 42 mm. Therefore, smaller doses of EO in the vapour phase can be inhibitory to pathogenic bacteria. Else, the DIZ increased with increase in concentration of the oil. There is growing evidence that EGEO in vapour phase are effective antibacterial systems and appears worthy to be considered for practical uses in the treatment or prevention of patients with respiratory tract infections or as air decontaminants in hospital. The present study indicates that EGEO has considerable antimicrobial activity, deserving further investigation for clinical applications.

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“…Eucalyptus leaf oils have received attention in a number of studies (Elaissi et al, 2012;Proenza et al, 2013).…”

Section: Table 2 the Main Components Identified In The Essential Oilmentioning

confidence: 99%

“…Another screening research, this time involving seventeen Eucalyptus growing in Cuba, had earlier been conducted by (Proenza et al, 2013). Tests were carried out against Gram-positive and Gram-negative bacteria using volatile oils from the following Eucalyptus species.…”

Section: Table 2 the Main Components Identified In The Essential Oilmentioning

confidence: 99%

LIQUID AND VAPOUR PHASE ANTIBACTERIAL ACTIVITY OF <i>EUCALYPTUS GLOBULUS</i> ESSENTIAL OIL = SUSCEPTIBILITY OF SELECTED RESPIRATORY TRACT PATHOGENS

Nadjib¹,

Amine²,

Kameli³

et al. 2014

American Journal of Infectious Diseases

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Eucalyptus globulus (Labill.): a perfume tree with several medicinal purposes

et al. 2017

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Eucalyptus globulus (Labill.) [Myrtaceae] est originaire de Tasmanie en Australie et pousse surtout dans les régions chaudes. L'eucalyptus commun ou gommier bleu est un arbre sempervirent qui peut croître jusqu'à 30-55 m de haut. Ses feuilles sont la principale source de son huile essentielle (HE). Utilisée pour ses vertus médicinales, notamment antitussives et expectorantes, elle n'en a pas moins des propriétés fébrifuges, toniques, astringentes, antiseptiques, hémostatiques et vermifuges. Parmi ces composés, le 1,8-cinéole ou eucalyptol (50 à 80 %) est sans doute le plus connu, car c'est un expectorant qui peut soulager la toux et lutter contre les problèmes des voies respiratoires. En outre, pinène, limonène et au moins 250 autres composés dont citronellal, cryptone, pipéritone viendront étoffer la liste des nombreux composés aux vertus médicinales de l'eucalyptus. En phytoaromathérapie, l'essence d'eucalyptus officinal pourra trouver une place comme désinfectant atmosphérique en milieu hospitalier afin de lutter contre les infections nosocomiales et les contaminations aéroportées. Elle aide aussi à lutter contre l'asthme et peut être utilisée pour la désinfection de plaies. Notre travail se veut une revue de la littérature des propriétés thérapeutiques, préventive et/ou curative, de cet arbre à parfum et les potentiels utilisations de son HE en phytoaromathérapie anti-infectieuse ou encore comme ingrédient actif dans les préparations pharmaceutiques. Mots clés Eucalyptus globulus (Labill.) · Huile essentielle · Eucalyptol · Aromathérapie · Infections respiratoiresAbstract Eucalyptus globulus (Labill.) [Myrtaceae] is native of Tasmania (Australia) and grows mainly in warm regions. The common blue gum eucalyptus is an evergreen tree that can grow up to 30-55 m high. Its leaves are the main source of essential oil (EO), which has been used for medicinal purposes, including antimicrobial and expectorant properties. Further, Eucalyptus globulus EO has many other medicinal properties, such as antipyretic, tonic, astringent, antiseptic, and hemostatic. The chemical composition of EO revealed that the oxygenated monoterpène 1,8-cineol or eucalyptol (50-80%) is the best known probably because it is an expectorant, can relieve cough, and fight against respiratory tract infections. Hence, pinene, limonene, and other compounds (citronellal, cryptone, and piperitone) will expand the list of many compounds with medicinal properties of eucalyptus EO. In phytotherapy research, Eucalyptus globulus EO could be used as an air disinfectant in hospitals to fight against nosocomial infections and airborne contaminations. Our article aims to be a literature review of the therapeutic (preventive or curative) properties of Eucalyptus globulus and gives a strong impetus of the potential uses of EO in aromatherapy or as an active ingredient in pharmaceutical industry.

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The harvested of eucalyptus leaves as sources of essential oil production from timber forest plantation

Suhardiman,

Fitriyana

2023

IOP Conf. Ser.: Earth Environ. Sci.

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Eucalyptus tree especially on the leaves part, contains essential oil that commercially valuable. However, it is widely known that Eucalyptus tree plantation is designed solely to produce timber, so that their leaves were simply became waste during timber harvesting. This study aimed to estimate the potential production of essential oil from Eucalyptus leaves in PT Surya Hutani Jaya forest concession in Kutai Kartanegara Districs, East Kalimantan. Thirty eucalyptus trees were selected directly on the harvesting block and treated as sample for estimating the weight of the leaves. Leaves were collected and separated from its twig and branch manually by hand. Following the eucalyptus canopy structure, 1/3 of the most upper part of the leaves that representing young leaves were separated from other leaves part and each were weighted using digital scales. This research finds that average weight of single Eucalyptus leaves at the harvested age is 5.56 kg (standard deviation = 2.63 kg). Bias was calculated as much as 18%. Using confidence interval 95%, the weight of the leaf’s ranges from 4.58 – 6.55 kg.

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Chemical composition and antibacterial activity of the essential oil from Eucalyptus pellita F. Muell.

Cited by 8 publications

References 12 publications

LIQUID AND VAPOUR PHASE ANTIBACTERIAL ACTIVITY OF <i>EUCALYPTUS GLOBULUS</i> ESSENTIAL OIL = SUSCEPTIBILITY OF SELECTED RESPIRATORY TRACT PATHOGENS

LIQUID AND VAPOUR PHASE ANTIBACTERIAL ACTIVITY OF <i>EUCALYPTUS GLOBULUS</i> ESSENTIAL OIL = SUSCEPTIBILITY OF SELECTED RESPIRATORY TRACT PATHOGENS

Eucalyptus globulus (Labill.): a perfume tree with several medicinal purposes

The harvested of eucalyptus leaves as sources of essential oil production from timber forest plantation

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