Resumen

PENA-ROJAS, Karen Angélica et al. Phenolic composition of Cryptocarya alba (Mol) Looser in different locations and seasons of the year. Rev cubana ciencias forestales [online]. 2021, vol.9, n.1, pp. 17-34.  Epub 02-Abr-2021. ISSN 2310-3469.

The phenolic composition of various plant species has been studied in order to know quantitatively and qualitatively the compounds present in them, to be used as raw material in the food, pharmacological and cosmetic industries, among others. In Chile there is little information on the phenolic composition of native plant species of the Mediterranean forest, so it is of great importance to carry out phenolic characterization studies, in order to detect which are the major compounds for their possible extraction or use of raw materials. The objective of this study was to characterize and quantify by high performance liquid chromatography (HPLC-DAD) the phenolic composition of Cryptocarya alba (Mol) Looser, in young leaves and branches, in seven locations in central Chile and during the winter, spring and summer seasons. Total phenols (FT), condensed tannins (TC) and low molecular weight phenols were quantified in the different samples. In C. alba leaves, for the different seasons of the year and localities analyzed, concentration ranges of 9.83-29.85 mgEAG g-1 for FT and 7.06-32.00 mgEC g-1 for TC; while in the young branches, concentrations between 0.68-1.61 mgEAG g-1 for TF and 1.23-2.53 mgEC g-1 for TC. The low molecular weight phenolic compounds identified in the highest concentration in C. alba were: trans-chlorogenic acid, followed by procyanidins and flavonols. Finally, it was concluded that the composition and concentration of phenolic compounds of C. alba changes with the locality and season of the year.

Palabras clave : Phenolic compounds; Cryptocarya alba; Flavonoids; Tannins..

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