Extraction of phenolic compounds and content of catechin in barks of three forest species from Cauca-Colombia

The catechin content in barks of the forest species Pinus patula, Pinus oocarpa and Eucaliptus grandis, cultivated in the Department of Cauca-Colombia, was evaluated. The ethanol extracts were obtained by evaluating the best conditions of particle size, agitation time, solvent-bark ratio and tempera...