Chemical variability of essential oils of Eugenia uniflora L. genotypes and their antioxidant activity.

Cipriano, Roger Raupp; Maia, Beatriz Helena L. N. Sales; Deschamps, Cícero

doi:10.1590/0001-3765202120181299

Cited by 8 publications

(4 citation statements)

References 36 publications

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“…The differences in the yields of the essential oils may be associated with particular aspects related to the sample collection sites [25]. The yields found in this study were very close to those found in studies with other species of the genus, such as E. uniflora (0.22-1.68%) [26] and (0.8-3.1%) [27].…”

Section: Yields Of the Essential Oilssupporting

confidence: 82%

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Chemical Composition and Antioxidant Activity of Essential Oils from Leaves of Two Specimens of Eugenia florida DC.

et al. 2021

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Eugenia florida DC. belongs to the Myrtaceae family, which is present in almost all of Brazil. This species is popularly known as pitanga-preta or guamirim and is used in folk medicine to treat gastrointestinal problems. In this study, two specimens of Eugenia florida (Efl) were collected in different areas of the same region. Specimen A (EflA) was collected in an area of secondary forest (capoeira), while specimen B (EflB) was collected in a floodplain area. The essential oils (EOs) were extracted from both specimens of Eugenia florida by means of hydrodistillation. Gas chromatography coupled to mass spectrometry (GC/MS) was used to identify the volatile compounds present, and the antioxidant capacity of the EOs was determined by antioxidant capacity (AC-DPPH) and the Trolox equivalent antioxidant (TEAC) assay. For E. florida, limonene (11.98%), spathulenol (10.94%) and α-pinene (5.21%) were identified as the main compounds of the EO extracted from sample A, while sample B comprised selina-3,11-dien-6α-ol (12.03%), eremoligenol (11.0%) and γ-elemene (10.70%). This difference in chemical composition impacted the antioxidant activity of the EOs between the studied samples, especially in sample B of E. florida. This study is the first to report on the antioxidant activity of Eugenia florida DC. essential oils.

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Section: Yields Of the Essential Oilssupporting

confidence: 82%

“…In addition, it is important to emphasize the synergistic interactions present in the chemical constituents of these essential oils, which may also have contributed to the antioxidant activity presented in each of the chemical profiles [26].…”

Section: Antioxidant Activitymentioning

confidence: 99%

Chemical Composition and Antioxidant Activity of Essential Oils from Leaves of Two Specimens of Eugenia florida DC.

et al. 2021

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“…Both results were lower than obtained for C. concinna, reveling remarkable antioxidant activity. However, E. uniflora EO presented superior results, from 176.66 to 867.57 µM TE g -1 of EO, showing better antioxidant activity, possibly due to the presence of high concentrations of germacrone (Cipriano, Maia, & Deschamps, 2021).…”

Section: Resultsmentioning

confidence: 92%

Chemical composition and antioxidant activity of leaf essential oil from Calyptranthes concinna DC. (Myrtaceae)

Antonelo

Rodrigues

Júnior

et al. 2022

Acta Sci. Biol. Sci.

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The biodiversity found in Brazilian’s ecosystems brings the possibility of discovering new natural products with wide application potentials. However, knowing their availability and chemical composition is crucial. Thus, the aim of this study was to evaluate the extraction yield, chemical composition and antioxidant activity of essential oil from fresh leaves of Calyptranthes concinna DC., a native species of Myrtaceae occurring in Brazilian Atlantic Rain Forest. Plant samples were collected in Southeastern Brazil and the essential oil was extracted by hydrodistillation. The chemical composition was evaluated by Gas Chromatography associated with Mass Spectrometry and antioxidant activity was measured using ABTS, DPPH and FRAP methods. The extraction yield obtained was 0.015% (v), and the chemical composition revealed elemicin, a phenylpropanoid as the major component (36.46%). Still, β-caryophyllene (16.94%), germacrene B (8.28%) and spathulenol (7.33%) proved to be relevant for the same essential oil. Antioxidant activity was obtained for ABTS and DPPH radical scavenge (134.82 ± 2,9 and 93.70 ± 1.7 µM TE mL-1, respectively) and FRAP (11.31 ± 0.2 µM FeSO4 mL-1 OE), revealing hydrogen-donation as the main antioxidant mechanism. To our knowledge, this is the first report of antioxidant activity of C. concinna essential oil. The product presented compounds of great relevance, with possibilities of application in different areas including food, agriculture and pharmaceutical segments

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“…[24] EOs that have germacrone as the major compound have also been observed, [30] in agreement with our data. Based on the variability of the yield of compounds detected in EOs extracted from E. uniflora leaves and the differentiation between them, Cipriano and colleagues (2021) identified different genotypes found in Brazil and defined 6 different groups with different chemical profiles, [31] with the chemotype of group II closely resembling our EO extracted from E. uniflora.…”

Section: Essential Oils Chemical Constituentsmentioning

confidence: 99%

Larvicidal and Fungicidal Activity of the Leaf Essential Oil of Five Myrtaceae Species

dos Santos,

da Fonseca Rezende,

dos Santos

et al. 2023

Chemistry & Biodiversity

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Myrtaceae is one of the most diverse and abundant botanical families, exhibiting wide diversity in the chemical composition of essential oils (EOs). EOs have various biotechnological applications such as controlling the populations of organisms that negatively impact humans. This study aimed to extract EOs from Myrtaceae species, chemically characterize them, and evaluate their larvicidal and fungicidal effects. EOs were extracted from the leaves of Eugenia brasiliensis, Eugenia uniflora, Psidium cattleyanum, Psidium guajava, and Syzygium cumini by hydrodistillation for 3 h and characterized by chromatographic analysis. Larvaes of Aedes aegypti and colonies of Fusarium oxysporum were subjected to increasing EO concentrations to determine the larvicidal and fungicidal potential. The EOs of Eugenia and Psidium species are primarily composed of sesquiterpenes (>80 %), whereas S. cumini EO is rich in monoterpenes (more than 60 %). The Eugenia species had similar amounts of oxygenated monoterpenes, which may explain their higher larvicidal potential compared to other species, with CL50 of 86.68 and 147.46 PPM, respectively. In addition to these two study species, S. cumini showed a high inhibition of fungal growth, with more than 65 % inhibition. We demonstrated that the actions of five EOs from Myrtaceae with different biological activities are associated with chemical diversity.

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Chemical variability of essential oils of Eugenia uniflora L. genotypes and their antioxidant activity.

Cited by 8 publications

References 36 publications

Chemical Composition and Antioxidant Activity of Essential Oils from Leaves of Two Specimens of Eugenia florida DC.

Chemical Composition and Antioxidant Activity of Essential Oils from Leaves of Two Specimens of Eugenia florida DC.

Chemical composition and antioxidant activity of leaf essential oil from Calyptranthes concinna DC. (Myrtaceae)

Larvicidal and Fungicidal Activity of the Leaf Essential Oil of Five Myrtaceae Species

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