Resumo

CRUZ FLORES, O.; ESPINOZA RUIZ, M.; SANTIESTEBAN HERNANDEZ, A.  e  CRUZ-LOPEZ, L.. Chemical characterization of the volatiles of Tagetes nelsonii. Polibotánica [online]. 2021, n.51, pp.203-211.  Epub 06-Maio-2021. ISSN 1405-2768.  https://doi.org/10.18387/polibotanica.51.13.

Species of the genus Tagetes (Astereceae) have shown important medicinal and biological properties. Many Tagetes species are native from Mexico, however, there are few studies on their volatiles. The objective of the present study is to characterize the volatiles of Tagetes nelsonni Greenm commonly known as “Chik chawa”, which is a plant used in some regions of Chiapas State, Mexico for medicinal purposes. Our work was focused to extract and to identify the T. nelsonii volatiles using Solid Phase Microextraction (SPME) and Gas Chromatography-Mass Espectrometry (GC-MS) respectively. The compounds biosynthesized by T. nelsonii are a mixture of terpenes. The major volatile components are (E)-β-tagetone (43-9%) and dihydrotagetone (20.7%), followed by trans-β-ocimene, eucaliptol, limonene and β-cubebene. T. nelsonni contains fragant compounds as α and β-pinene, trans-β-ocimene, limonene, linalool, (E) and (Z)-tagetones, dihydrotagetone and cis and trans-tagetenone with potential to be used for cosmetic, pharmaceutical purposes and to help to control insect pest of plant problems.

Palavras-chave : Tagetes; Tagetes nelsonii; terpenes; SPME; GC-MS.

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