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Identification of Secondary Metabolites from the Lichen Hypotrachyna enderythraea (Zahlbr.) Hale by HPLC-ESI-MS/MS

by Castro, Nino , Carrasco, Fernando , Hernández, Wilfredo , Chupayo, Oscar , Bongiorno, Bruno , Dávalos, Juan Z. , Sivipaucar, Nelly , Silva, Lúcia A. , Carrasco, Eduardo , Rodilla, Jesus M. , Raposo, Cesar

in Acids / Antioxidants / Aromatic compounds / Chromatography / Chromatography, High Pressure Liquid / Comparative analysis / Density functionals / Dibenzofurans / High performance liquid chromatography / Hypotrachyna species / Ionization / lichen / Lichens / Lichens - chemistry / Lichens - metabolism / Lipids / Mass spectrometry / Metabolites / Molecular Structure / Phenols / Plant metabolites / Scientific imaging / Secondary Metabolism / secondary metabolite profiling / Specific gravity / Spectrometry, Mass, Electrospray Ionization / Tandem Mass Spectrometry / UHPLC-MS-MS

2026

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Identification of Secondary Metabolites from the Lichen Hypotrachyna enderythraea (Zahlbr.) Hale by HPLC-ESI-MS/MS

2026

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Identification of Secondary Metabolites from the Lichen Hypotrachyna enderythraea (Zahlbr.) Hale by HPLC-ESI-MS/MS

2026

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Journal Article

Identification of Secondary Metabolites from the Lichen Hypotrachyna enderythraea (Zahlbr.) Hale by HPLC-ESI-MS/MS

Castro, Nino,

Carrasco, Fernando,

Hernández, Wilfredo,

Chupayo, Oscar,

Bongiorno, Bruno,

Dávalos, Juan Z.,

Sivipaucar, Nelly,

Silva, Lúcia A.,

Carrasco, Eduardo,

Rodilla, Jesus M.,

Raposo, Cesar

2026

Overview

In this study, sixteen secondary metabolites, including two chromones, four dibenzofurans, three lipids, three depsides, two aromatic compounds, a quinone, and a terpene, were detected in the methanol:acetone (1:1 v/v) extract of the lichen Hypotrachyna enderythraea (Zahlbr.) Hale, using High-Performance Liquid Chromatography coupled to Orbitrap Electrospray Ionization tandem Mass Spectrometry (HPLC-Orbitrap ESI tandem MS/MS). These metabolites were characterized by analysis of their exact molecular masses and corresponding fragmentation patterns. The retention times of the identified metabolites were compared with those of standard compounds, confirming the presence of naturally occurring bioactive compounds. Density Functional Theory (DFT) calculations were employed to investigate preferential deprotonation sites in representative polyprotic metabolites. All these findings may contribute to expanding the spectrum of compounds identified within the genus Hypotrachyna and to evaluating their potential biological activities.

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Publisher

MDPI AG,Multidisciplinary Digital Publishing Institute (MDPI)

Subject

/ Chromatography, High Pressure Liquid

/ Comparative analysis

/ Density functionals