Chemical variability of volatile concentrate from two Ipomoea L. species within a seasonal gradient

• Published in: Natural product research Vol. 37; no. 19; pp. 1 - 3351
• Main Authors: Souza da Silva Júnior, Oseias, Franco, Celeste de Jesus Pereira, de Moraes, Ângelo Antônio Barbosa, Pastore, Mayara, Cascaes, Marcia Moraes, Diniz do Nascimento, Lidiane, de Oliveira, Mozaniel Santana, Andrade, Eloisa Helena de Aguiar
• Format: Journal Article
• Language: English
• Published: England Taylor & Francis Ltd 02.10.2023
• Subjects: Chemical composition; Cluster analysis; Clustering; Concentration gradient; Distillation; Flowers; Gas chromatography; Germacrene; Ipomoea asarifolia; Pollinators; Principal components analysis; Rainy season; Seasonal variations; Volatile compounds; pollination; chemical ecology; Ipomoea setifera; seasonality; Ipomoea asarifolia; floral visitors; melittophily
• ISSN: 1478-6419; 1478-6427
• DOI: 10.1080/14786419.2022.2070618

In the present study, are extracted volatile concentrate from Poir. and (Desr.) Roem. & Schult. in five-month seasonal gradient. The flowers were subjected to simultaneous distillation - extraction (SDE). The chemical composition of the volatile concentrate was determined by gas chromatography (CG/MS) and (CG-FID). Principal Component Analysis (PCA) and Hierarchical Clustering Analysis (HCA) were performed with the chemical constituents. It was observed that the chemical composition of varied more with seasonality in relation to the species . Furthermore, there is a possibility that germacrene D and α-copaene, the main components of the variation volatile of and with higher concentrations in the rainy months, have ecological importance, attracting specific pollinators for the rainy season. This is the first study to report the chemical composition of the volatile compounds of and along a seasonal gradient.