Aislamiento e identificación de metabolitos secundarios de la especie Stereocaulon sp. del sur del Ecuador

Abstract

Abstract: In the present study, two secondary metabolites were isolated and identified from the lichen Stereocaulon sp: lobarielin and β-orcinol methyl carboxylate. Different techniques such as thin layer chromatography, column chromatography and NMR spectroscopy were used to identify the molecular structure of each compound. In these isolated compounds, the presence of depsidones in lobarielin and phenolic functional groups in β-orcinol methyl carboxylate was found. The isolated metabolites are known for their antioxidant and ultraviolet radiation defense properties. This study is important because it allows to know more about the metabolites in relation to lichens and generates an impact because they contribute to the understanding of the phylogenetic and ecological relationships within the family Stereocaulaceae, showing the chemical and functional diversity of the genus Stereocaulon and thus that this study will be a guide for future research.