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- Title
Phytochemical Profile, Preliminary Toxicity, and Antioxidant Capacity of the Essential Oils of Myrciaria floribunda (H. West ex Willd.) O. Berg. and Myrcia sylvatica (G. Mey) DC. (Myrtaceae).
- Authors
de Moraes, Ângelo Antônio Barbosa; Ferreira, Oberdan Oliveira; da Costa, Leonardo Souza; Almeida, Lorena Queiroz; Varela, Everton Luiz Pompeu; Cascaes, Márcia Moraes; de Jesus Pereira Franco, Celeste; Percário, Sandro; Nascimento, Lidiane Diniz do; de Oliveira, Mozaniel Santana; Andrade, Eloisa Helena de Aguiar
- Abstract
The essential oils (EOs) of Myrciaria floribunda (Mflo) and Myrcia sylvatica (Msyl) (Myrtaceae) were obtained by hydrodistillation. The analysis of volatile constituents was performed by GC/MS. Preliminary toxicity was assessed on Artemia salina Leach. The antioxidant capacity was measured by the ABTS•+ and DPPH• radical inhibitory activities. The results indicate that the Mflo EO had the highest yield (1.02%), and its chemical profile was characterized by high levels of hydrocarbon (65.83%) and oxygenated (25.74%) monoterpenes, especially 1,8-cineole (23.30%), terpinolene (22.23%) and α-phellandrene (22.19%). Regarding the Msyl EO, only hydrocarbon (51.60%) and oxygenated (46.52%) sesquiterpenes were identified in the sample, with (Z)-α-trans-bergamotene (24.57%), α-sinensal (13.44%), and (Z)-α-bisabolene (8.33%) at higher levels. The EO of Mflo exhibited moderate toxicity against A. salina (LC50 = 82.96 ± 5.20 µg.mL−1), while the EO of Msyl was classified as highly toxic (LC50 = 2.74 ± 0.50 µg.mL−1). In addition, relative to Trolox, the EOs of Mflo and Msyl showed significant inhibitory effects (p < 0.0001) against the DPPH• radical. This study contributes to the expansion of chemical and biological knowledge on the EOs of Myrtaceae species from the Amazon region.
- Subjects
ESSENTIAL oils; OXIDANT status; MYRCIARIA; MYRTACEAE; POISONS; SESQUITERPENES
- Publication
Antioxidants, 2022, Vol 11, Issue 10, pN.PAG
- ISSN
2076-3921
- Publication type
Article
- DOI
10.3390/antiox11102076