UHPLC-MS Metabolomic Fingerprinting, Antioxidant, and Enzyme Inhibition Activities of Himantormia lugubris from Antarctica
Himantormia lugubris is a Chilean native small lichen shrub growing in the Antarctica re-gion. In this study, the metabolite fingerprinting and the antioxidant and enzyme inhibitory potential from this species and its four major isolated compounds were investigated for the first time. Using ultra-hi...
- Autores:
-
Imbol Álvarez, Carlos
Parra, Javier Romero
Sepulveda, Beatriz
García-Beltrán, Olimpo
Simirgiotis, Mario J.
- Tipo de recurso:
- Article of investigation
- Fecha de publicación:
- 2022
- Institución:
- Universidad de Ibagué
- Repositorio:
- Repositorio Universidad de Ibagué
- Idioma:
- eng
- OAI Identifier:
- oai:repositorio.unibague.edu.co:20.500.12313/5565
- Palabra clave:
- UHPLC-MS - Huella metabolómica
Himantormia lugubris de la Antártida - Actividades antioxidantes
Himantormia lugubris de la Antártida - Inhibición enzimática
Alzheimer
Antarctica
Antioxidant
Depsides
Dibenzofurans
Himantormia; native lichens
Enzyme inhibition
Phenolics
- Rights
- openAccess
- License
- © 2022 by the authors. Licensee MDPI, Basel, Switzerland.
| Summary: | Himantormia lugubris is a Chilean native small lichen shrub growing in the Antarctica re-gion. In this study, the metabolite fingerprinting and the antioxidant and enzyme inhibitory potential from this species and its four major isolated compounds were investigated for the first time. Using ultra-high performance liquid chromatography coupled to quadrupole-Orbitrap mass spec-trometry analysis (UHPLC-Q-Orbitrap-MS), several metabolites were identified including specific compounds as chemotaxonomical markers, while major metabolites were quantified in this species. A good inhibition activity against cholinesterase (acetylcholinesterase (AChE) IC50: 12.38 ± 0.09 µg/mL, butyrylcholinesterase (BChE) IC50: 31.54 ± 0.20 µg/mL) and tyrosinase (22.32 ± 0.21 µg/mL) enzymes of the alcoholic extract and the main compounds (IC50: 28.82 ± 0.10 µg/mL, 36.43 ± 0.08 µg/mL, and 7.25 ± 0.18 µg/mL, respectively, for the most active phenolic atranol) was found. The extract showed a total phenolic content of 47.4 + 0.0 mg of gallic acid equivalents/g. In addition, antioxidant activity was assessed using bleaching of DPPH and ORAC (IC50: 75.3 ± 0.02 µg/mL and 32.7 ± 0.7 μmol Trolox/g lichen, respectively) and FRAP (27.8 ± 0.0 μmol Trolox equivalent/g) ex-periments. The findings suggest that H. lugubris is a rich source of bioactive compounds with po-tentiality in the prevention of neurodegenerative or noncommunicable chronic diseases. |
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