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Open AccessArticle

First Report on Yield and Chemical Composition of Essential Oil Extracted from Myrcia eximia DC (Myrtaceae) from the Brazilian Amazon

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Program of Post-Graduation in biodiversity e biotecnology-Bionorte, Federal University of Para, Rua Augusto Corrêa S/N, Guamá, 66075-900 Belém, Brazil
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Laboratório Adolpho Ducke Laboratory, Botany Coordination, Museu Paraense Emílio Goeldi, Av. Perimetral, 1900, Terra Firme, 66077-830 Belém, Brasil
3
Federal University of Para, Rua Augusto Corrêa S/N, Guamá, 66075-900 Belém, Brazil
*
Authors to whom correspondence should be addressed.
Molecules 2020, 25(4), 783; https://doi.org/10.3390/molecules25040783 (registering DOI)
Received: 26 December 2019 / Revised: 10 January 2020 / Accepted: 13 January 2020 / Published: 12 February 2020
(This article belongs to the Section Fragrances and Flavours)
The essential oil (EO) of plants of the Myrtaceae family has diverse chemical composition and several applications. However, data on the oil yield, its composition, and its complete chemistry are still unavailable for some species belonging to this family, such as Myrcia eximia DC. In this study, the chemical compositions of the EOs of Myrcia eximia were evaluated by using gas chromatography (GC) alone and gas chromatography coupled with mass spectrometry (GC–MS). Samples for both evaluations were collected from the city of Magalhães Barata, State of Pará, Brazil, in 2017 and 2018. For the plant material collected in 2017, EO was obtained by hydrodistillation (HD) only, while, for the material collected in 2018, EO was obtained by hydrodistillation and steam distillation (SD), in order to evaluate the differences in chemical composition and mass yield of the EO. The yields of (E)-caryophyllene were 15.71% and 20.0% for the samples collected by HD in 2017 and 2018, respectively, while the yield was 15.0% for the sample collected by SD in 2018. Hexanal was found to be the major constituent in the EO obtained by HD, with yield of up to 26.09%. The oil yields reached 0.08% by using SD, and 0.01% and 0.36% for the samples collected in 2017 and 2018, respectively, using HD. The results of this study provide new information about the mass yield and chemical composition of Myrcia eximia DC, and they can add value and income to traditional populations, as well as facilitate the preservation of this species. View Full-Text
Keywords: Myrcia eximia DC; essential oil; gas chromatography; (E)-caryophyllene Myrcia eximia DC; essential oil; gas chromatography; (E)-caryophyllene
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Ferreira, O.O.; da Cruz, J.N.; Franco, C.J.P.; Silva, S.G.; da Costa, W.A.; de Oliveira, M.S.; Andrade, E.H.A. First Report on Yield and Chemical Composition of Essential Oil Extracted from Myrcia eximia DC (Myrtaceae) from the Brazilian Amazon. Molecules 2020, 25, 783.

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