Title
Phenolic Profile, Antioxidant and Enzyme Inhibition Properties of the Chilean Endemic Plant Ovidia pillopillo (Gay) Meissner (Thymelaeaceae)
Date Issued
01 February 2022
Access level
open access
Resource Type
journal article
Author(s)
Cortés C.
González-Cabrera D.A.
Barrientos R.
Parra C.
Romero-Parra J.
Pertino M.W.
Sepúlveda B.
Bórquez J.
Torres-Benítez A.
Simirgiotis M.J.
Universidad de Chile
Publisher(s)
MDPI
Abstract
Ovidia pillopillo (Lloime) is an endemic species of the Valdivian Forest of Chile. Little is known on the chemistry and biological activity of this plant. In this study, the phenolic profile, antiox-idant capacities and enzyme inhibition capacities (against tyrosinase and cholinesterase) of the plant were investigated for the first time. The phenolic profile of the plant was obtained by UHPLC-MS fingerprinting with high resolution, which showed the presence of several flavonoids and coumarins. The antioxidant potential was measured by FRAP and ORAC (45.56 ± 1.32; 25.33 ± 1.2 µmol Trolox equivalents/g dry plant, respectively) plus ABTS and DPPH methods (IC50 = 9.95 ± 0.05 and 6.65 ± 0.5 µg/mL, respectively). Moreover, the flavonoid and phenolic contents were determined (57.33 ± 0.82 and 38.42 ± 1.32, µg of Trolox and quercetin equivalents/100 g dry weight, respectively). The ethanolic extract showed cholinesterase (IC50 = 1.94 ± 0.07 and 2.73 ± 0.05 µg/mL, for AChE and BuChE, respectively) and tyrosinase (4.92 ± 0.05 µg/mL) enzyme inhibition activities. Based on these in vitro studies, in silico simulations were performed, which determined that the major compounds as ligands likely docked in the receptors of the enzymes. These results suggest that Ovidia pillopillo produce interesting special coumarins and flavonoids, which are potential candidates for the exploration and preparation of new medicines.
Volume
12
Issue
2
Language
English
OCDE Knowledge area
Agricultura Bioquímica, Biología molecular
Scopus EID
2-s2.0-85124125757
Source
Metabolites
Sponsor(s)
This work determined the chemical composition and antioxidant capacity of Lloime (O. pillopillo) ethanolic extract for the first time. Interesting toxic coumarins were identified; in addition, new glycosyl flavonoids showed interesting docking in the active sites of pharmacologically important enzymes, such as tyrosinase and cholinesterase. The results from the enzyme inhibition studies demonstrated a moderate inhibition, especially for the typical coumarins of the genera and glycosylated flavonoids, which was supported by the full docking experiments. More research is necessary in order to isolate the compounds and to perform more in vivo tests with the pure compounds that can support the beneficial and medicinal uses of this Valdivian Mapuche Amerindian plant.
Sources of information: Directorio de Producción Científica Scopus