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Chemical composition and bioactive properties of Eucalyptus globulus L. essential oil

2021Conference object Open access
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dc.contributor.authorSpadi, Agnese
dc.contributor.authorXavier, Virginie
dc.contributor.authorMasella, Piernicola
dc.contributor.authorHeleno, Sandrina A.
dc.contributor.authorAmaral, Joana S.
dc.contributor.authorPires, Tânia C.S.
dc.contributor.authorCalhelha, Ricardo C.
dc.contributor.authorFerreira, Isabel C.F.R.
dc.contributor.authorBarros, Lillian
dc.date.accessioned2022-01-20T15:14:46Z
dc.date.available2022-01-20T15:14:46Z
dc.date.issued2021
dc.description.abstractEucalyptus is a large genus of tall evergreen plants belonging to the Myrtaceae family that comprises about 900 species and subspecies[1]. It is native to Australia but currently is planted all around the world being one of the most important tree for its several uses such as timber, pulp and essential oil[2]. In recent years, the demand of Eucalyptus sp. essential oil has significantly increased as it has been approved as a natural additive. It is widely used in food, flavor, pharmaceutical, and perfumery industries, thanks to its many biological properties, including antibacterial, antifungal, analgesic and anti-inflammatory properties [3-4]. Eucalyptus sp. leaves in particular are rich in essential oil and its chemical composition depends on several factors, both intrinsic and extrinsic ones, such as environment and agronomic practices[5]. The aim of this work was to characterize the essential oil obtained from Eucalyptus globulus L. dry leaves and assessing its antioxidant (DPPH and reducing power), antimicrobial (microdilution method against pathogenic bacteria) and cytotoxic properties􆿁􆾳A conventional Clevenger apparatus was used to extract the essential oil by hydrodistillation for 3 h. The essential oil yield was 2.2 ± 0.3 %. The chemical composition of the oil was determinated by GC-MS analysis which enabled the identification of 94% of total compounds in common eucalyptus essential oil. The major compounds were eucalyptol, alpha-pinene, globulol, alpha-terpinyl acetate, alpha-terpineol and aromadendrene. From a qualitative point of view, the obtained results are in good agreement with the data available from the literature, considering the genetics and environment variations that may occur [5]. The antioxidant activity was evaluated by DPPH radical scavenging effect and reducing power. For DPPH assay an EC50 value of 145.5 ± 0.7 mg/mL was obtained, while for reducing power assay an EC50 value of 3.0 ± 0.2 mg/mL was presented. Concerning the cytotoxic activity against four tumor cell lines (AGS - gastric, NI-H460 – lung, CaCo – colon and MCF-7- breast), the best results were revealed on the inhibition of the colon cancer cell line with GI50 value of 73 ± 5 μg/mL. The minimum inhibitory concentration (MIC) and the minimum bactericidal concentration (MBC) were tested against a large panel of several common food and clinical bacteria evidencing a wide spectrum antibacterial activity against the selected bacteria. A strong activity in a concentration range between 2.5 and 0.6 % was reported again Escherichia coli, Listeria monocytogenes (clinical isolate), Methicillin-resistant Staphylococcus aureus (MRSA) for clinical bacteria and again Yersinia enterocolitica, Listeria monocytogenes (ATCC), Enterobacter Cloacae, Staphylococcus aureus and Bacillus cereus for food bacteria. Overall, the results revealed that essential oils from eucalyptus are a potential and natural source of bioactive substances for bio-based industries.pt_PT
dc.description.sponsorshipThe authors are grateful to the Foundation for Science and Technology (FCT, Portugal) for financial support through national funds FCT/MCTES to CIMO (UIDB/00690/2020). L. Barros and R. Calhelha thanks the national funding by FCT through the institutional scientific employment program-contract for her contract, while S. Heleno thank FCT through the individual scientific employment program-contracts (CEECIND/00831/2018 and CEECIND/03040/2017). This project has received funding from the Bio Based Industriespt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationSpadi, Agnese; Xavier, Virginie; Masella, Piernicola; Heleno, Sandrina A.; Amaral, Joana S.; Pires, Tânia C.S.; Calhelha, Ricardo C.; Ferreira, Isabel C.F.R.; Barros, Lillian (2021). Chemical composition and bioactive properties of Eucalyptus globulus L. essential oil. In 5th International Symposium on Phytochemicals in Medicine and Food. Nanchangpt_PT
dc.identifier.urihttp://hdl.handle.net/10198/24802
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.relationCEECIND/00831/2018pt_PT
dc.relationMountain Research Center
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/pt_PT
dc.subjectEucalyptuspt_PT
dc.titleChemical composition and bioactive properties of Eucalyptus globulus L. essential oilpt_PT
dc.typeconference object
dspace.entity.typePublication
oaire.awardTitleMountain Research Center
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDB%2F00690%2F2020/PT
oaire.citation.conferencePlaceNanchangpt_PT
oaire.citation.endPage301pt_PT
oaire.citation.startPage301pt_PT
oaire.citation.title5th International Symposium on Phytochemicals in Medicine and Foodpt_PT
oaire.fundingStream6817 - DCRRNI ID
person.familyNameXavier
person.familyNameHeleno
person.familyNameAmaral
person.familyNamePires
person.familyNameCalhelha
person.familyNameFerreira
person.familyNameBarros
person.givenNameVirginie
person.givenNameSandrina A.
person.givenNameJoana S.
person.givenNameTânia C.S.P.
person.givenNameRicardo C.
person.givenNameIsabel C.F.R.
person.givenNameLillian
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person.identifier.orcid0000-0002-6801-4578
person.identifier.orcid0000-0003-4910-4882
person.identifier.orcid0000-0002-9050-5189
person.identifier.ridL-5951-2014
person.identifier.ridQ-2842-2018
person.identifier.ridJ-2172-2014
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person.identifier.scopus-author-id6507978333
person.identifier.scopus-author-id36868826600
person.identifier.scopus-author-id35236343600
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.nameFundação para a Ciência e a Tecnologia
rcaap.rightsopenAccesspt_PT
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