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. 2020 Feb 19;10(2):328.
doi: 10.3390/biom10020328.

Seasonal and Antioxidant Evaluation of Essential Oil from Eugenia uniflora L., Curzerene-Rich, Thermally Produced in Situ

Jamile S da Costa  1 , Adenilson S Barroso  2 , Rosa Helena V Mourão  2 , Joyce Kelly R da Silva  3 , José Guilherme S Maia  1   4 , Pablo Luis B Figueiredo  5
Affiliations

Seasonal and Antioxidant Evaluation of Essential Oil from Eugenia uniflora L., Curzerene-Rich, Thermally Produced in Situ

Jamile S da Costa et al. Biomolecules. .

Abstract

The essential oil of Eugenia uniflora has been attributed anti-depressive, antinociceptive, antileishmanial, larvicidal, antioxidant, antibacterial, and antifungal activities. It is known that the cultivation of this plant can be affected by seasonality, promoting alteration in the oil composition and its biological activities. This study aims to perform the annual evaluation of the curzerene-type oil of E. uniflora and determine its antioxidant activity. The oil yield from the dry season (1.4 ± 0.6%) did not differ statistically from that of the rainy season (1.8 ± 0.8%). Curzerene, an oxygenated sesquiterpene, was the principal constituent, and its percentage showed no significant difference between the two periods: dry (42.7% ± 6.1) and rainy (40.8 ± 5.9%). Principal component and hierarchical cluster analyses presented a high level of similarity between the monthly samples of the oils. Also, in the annual study, the yield and composition of the oils did not present a significant correlation with the climatic variables. The antioxidant activity of the oils showed inhibition of DPPH radicals with an average value of 55.0 ± 6.6%. The high curzerene content in the monthly oils of E. uniflora suggests their potential for use as a future phytotherapeutic alternative.

Keywords: 2,2-diphenyl-1-picrylhydrazyl; DPPH; curzerene; myrtaceae; seasonal variation; sesquiterpenes; volatile composition.

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Conflict of interest statement

The authors declare no conflict of interest.

Figures

Figure 1
Figure 1
Relationship between the climatic parameters and the oil yield of Eugenia uniflora during the seasonal study.
Figure 2
Figure 2
Ion-chromatogram of the E. uniflora oil.
Figure 3
Figure 3
Curzerene mass spectrum and its base-peak fragmentation (108 m/z).
Figure 4
Figure 4
Other sesquiterpene compounds identified in the oils of Eugenia uniflora: (1) curzerene, (2) β-elemene, (3) germacrene B, (4) germacrone, (5) spathulenol, (6) globulol, (7) viridiflorol.
Figure 5
Figure 5
Hierarchical clustering analysis (HCA) of the Eugenia uniflora oils, based on their main constituents.
Figure 6
Figure 6
Principal components analysis (PCA) of the Eugenia uniflora oils, based on their primary constituents.
See this image and copyright information in PMC

References

    1. WCSP (2020) World Checklist of Selected Plant Families. [(accessed on 18 February 2020)]; Facilitated by the Royal Botanic Gardens, Kew. Available online: http://wcsp.science.kew.org.
    1. Van der Merwe M.M., Van Wyk A.E., Botha A.M. Molecular phylogenetic analysis of Eugenia L. (Myrtaceae), with emphasis on southern African taxa. Plant. Syst. Evol. 2005;251:21–34. doi: 10.1007/s00606-004-0160-0. - DOI
    1. Eugenia in Flora do Brasil 2020 em Construção. [(accessed on 18 February 2020)]; Available online: http://floradobrasil.jbrj.gov.br/reflora/floradobrasil/FB10560.
    1. Rahimifard N., Sabzevari O., Shoeibi S., Pakzad S.R., Ajdary S., Hajimehdipoor H., Bagheri F., Safaee M. Antifungal activity of the essential oil of Eugenia caryophyllata on Candida albicans, Aspergillus niger and Aspergillus flavus. Biomed. Pharmacol. J. Vol. 2008;1:43–46.
    1. Lawal O.A., Ogunwande I.A., Owolabi M.S., Opoku A.R., Oyedeji A.O. Chemical Composition, Antibacterial Activity, and Brine Shrimp Lethality Test of Essential Oil from the Leaves of Eugenia natalitia. Chem. Nat. Compd. 2016;52:731–733. doi: 10.1007/s10600-016-1758-5. - DOI

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