Chemical Constituents and Their Production in Mexican Oaks ( Q. Rugosa, Q. Glabrescens and Q. Obtusata )

• Published in: Plants (Basel) Vol. 11; no. 19; p. 2610
• Main Authors: Castillo-Mendoza, Elgar, Zamilpa, Alejandro, González-Cortazar, Manasés, Ble-González, Ever A, Tovar-Sánchez, Efraín
• Format: Journal Article
• Language: English
• Published: Switzerland MDPI AG 01.10.2022; MDPI
• Subjects: Chemical properties; Column chromatography; Diversification; Experiments; Glucosides; High performance liquid chromatography; HPLC; Kaempferol; Liquid chromatography; Materia medica, Vegetable; Metabolism; Metabolites; NMR; Nuclear magnetic resonance; Oak; Phenolic compounds; Phenols; Plant extracts; Quercus glabrescens; Quercus obtusata; Quercus rugosa; specialized metabolites; Temperate forests; terpenoids; Thin layer chromatography; TLC; Ursolic acid; Mexico; phenolic compounds; TLC; terpenoids; specialized metabolites; HPLC
• ISSN: 2223-7747; 2223-7747
• DOI: 10.3390/plants11192610

Mexico is considered one of the main regions of diversification of the genus (oaks). Oak species are one of the most important tree groups, particularly in temperate forests, due to its diversity and abundance. Some studies have shown that oak contains specialized metabolites with medicinal importance. In this work, the acetonic extract from leaves of three Mexican oaks ( , and ) was separated using thin-layer chromatography and column chromatography. Chemical identification of the major compounds was determined using high-performance liquid chromatography and nuclear magnetic resonance. Nineteen compounds were identified, three belonging to the terpenoid family (ursolic acid, β-amyrin, and β-sitosterol) and 16 from the phenolic family. Of the isolated compounds, seven are new reports for oak species (scopoletin, ursolic acid, β-amyrin, luteolin-7-O-glucoside, kaempferol-3-O-sophoroside, kaempferol-3-O-glucoside, and kaempferol-3-O-sambubioside). More compounds were identified in followed by and then . The characterization of specialized metabolites in oak species is relevant, from both phytocentric and anthropocentric perspectives.