Metabolic Profiling of Varronia curassavica Jacq. Terpenoids by Flow Modulated Two-Dimensional Gas Chromatography Coupled to Mass Spectrometry

Autor(es)

Facanali, Roselaine ^[1] ; Mayo Marques, Marcia Ortiz ^[2] ; Hantao, Leandro Wang ^[1]

Afiliação do(s) autor(es)

^[1] Univ Estadual Campinas, Inst Chem, BR-13083970 Campinas, SP - Brazil

^[2] Agron Inst, BR-13075630 Campinas, SP - Brazil

• Tipo de documento: Artigo Científico
• Fonte: SEPARATIONS; v. 7, n. 1 MAR 2020.
• Citações Web of Science: 0

Resumo

In this study, a metabolomic approach was used to investigate the effect of seasonality on the chemical composition and yield of anti-inflammatory active principle, alpha-humulene, in the essential oil of three genotypes of Varronia curassavica Jacq. (Syn. Cordia verbenaceae). The essential oils were extracted by hydrodistillation and analyzed by comprehensive two-dimensional gas chromatography coupled to mass spectrometry (GCxGC-MS). The GCxGC approach a three-fold improvement in qualitative analysis (48 compounds were identified by GC-MS versus 135 by GCxGC-MS). The improved resolving power of GCxGC resolved important coelutions and enabled the detection of unusual substances in V. curassavica essential oil. The chromatographic data was analyzed by using peak table-based chemometrics, namely, principal component analysis (PCA) and hierarchical cluster analysis (HCA). The metabolic study showed that seasonality has a significant effect on the chemical composition. The alpha-humulene content was affected by genotype and season. Spring and summer were the best harvest seasons for the yield of the active ingredient, found in higher concentrations in the VC2 genotype. The proposed metabolomic workflow was successfully applied to terpene analysis found in V. curassavica essential oil, and such results have broadened our understanding of the influence of seasonal factors on the specialized metabolism of the species. (AU)

• Processo FAPESP: 17/25490-1 - Síntese e aplicação de líquidos iônicos no estudo de processos fermentativos de interesse comercial
• Beneficiário: Leandro Wang Hantao
• Modalidade de apoio: Auxílio à Pesquisa - Regular