Abstract
Myracrodruon urundeuva Fr. Allem. (Anacardiaceae) is the scientific designation of aroeira-do-sertao, a tree well dispersed through the Caatinga, the characteristic northeastern Brazil flora. Its trunk bark decoction is used to treat cutaneous affections, urinary and respiratory diseases and as a postpartum aseptic bath. This work reports the analyses of the essential oils from leaves of 62 specimens of aroeira-do-sertao. Analyses by 1H nuclear magnetic resonance (NMR) and gas chromatography coupled to mass spectrometry (GC-MS) of all oil samples permitted the characterization of all major components and, in consequence, the characterization of six different chemotypes of M. urundeuva, represented by the chemomarkers: myrcene, α-pinene, limonene, Δ3-carene, (Z) and (E)-β-ocimene.
Highlights
Essential oils from leaves of 62 individual wild specimens of “aroeira-do-sertão” collected in the states of Ceará (CE), Piauí (PI), Rio Grande do Norte (RN), Bahia (BA) and Pernambuco (PE) were analyzed and characterized through nuclear magnetic resonance (NMR) and gas chromatography coupled to mass spectrometry (GC-MS)
This paper reports the study of the volatile chemical composition of leaves from 62 specimens of “aroeirado-sertão” collected in five states in northeastern Brazil [Ceará (32), Rio Grande do Norte (17), Bahia (4), Pernambuco (4) and Piauí (5)] (Table S1 and Figure S19, Supplementary Information)
Leaves of 62 individual specimens (Table S1) were collected in five different states of northeastern Brazil. 1H and 13C NMR spectrum analysis of the essential oils resulted in structure elucidation of different constituents for each sample, allowing the classification of the 62 samples into six distinct groups characterized by the production of a major constituent: Δ3-carene (21 samples), (Z)‐β‐ocimene (7 samples), (E)-β-ocimene (7 samples), α-pinene (10 samples), myrcene (4 samples) and limonene (13 samples)
Summary
Figueredo et al.[7] analyzed the essential oil from fresh leaves of a specimen of “aroeirado-sertão” collected in Ceará state, the study showed the Δ3-carene as its major chemical constituent (80.4%) and this essential oil showed antibacterial action. Essential oils from leaves of 62 individual wild specimens of “aroeira-do-sertão” collected in the states of Ceará (CE), Piauí (PI), Rio Grande do Norte (RN), Bahia (BA) and Pernambuco (PE) were analyzed and characterized through nuclear magnetic resonance (NMR) and gas chromatography coupled to mass spectrometry (GC-MS).
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