UHPLC-MS Metabolomic Fingerprinting, Antioxidant, and Enzyme Inhibition Activities of Himantormia lugubris from Antarctica

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dc.contributor.authorAreche, Carlos
dc.contributor.authorParra, Javier Romero
dc.contributor.authorSepulveda, Beatriz
dc.contributor.authorGarcía-Beltrán, Olimpo
dc.contributor.authorSimirgiotis, Mario J.
dc.date.accessioned2024-04-23T18:07:27Z
dc.date.available2024-04-23T18:07:27Z
dc.date.issued2022-06
dc.descriptionIndexación: Scopus.
dc.description.abstractHimantormia 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. © 2022 by the authors. Licensee MDPI, Basel, Switzerland.
dc.description.urihttps://www.mdpi.com/2218-1989/12/6/560
dc.identifier.citationMetabolites, Volume 12, Issue 6, June 2022, Article number 560
dc.identifier.doi10.3390/metabo12060560
dc.identifier.issn2218-1989
dc.identifier.urihttps://repositorio.unab.cl/handle/ria/56304
dc.language.isoen
dc.publisherMDPI
dc.rights.licenseCC BY 4.0 DEED Atribución 4.0 Internacional
dc.rights.urihttps://creativecommons.org/licenses/by/4.0/deed.es
dc.subjectAlzheimer
dc.subjectAntarctica
dc.subjectAntioxidant
dc.subjectDepsides
dc.subjectDibenzofurans
dc.subjectEnzyme inhibition
dc.subjectHimantormia
dc.subjectNative lichens
dc.subjectPhenolics
dc.titleUHPLC-MS Metabolomic Fingerprinting, Antioxidant, and Enzyme Inhibition Activities of Himantormia lugubris from Antarctica
dc.typeArtículo
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