Evaluación de extractos tánicos de Caesalpinia spinosa sobre la calidad en la curtición de pieles caprinas y bovinas

Abstract

In the elaboration of the following study, the aim was to search and prove that the use of ionized tannins extracted from caesalpinia spinosa at a certain concentration can serve as a tanning source, in order to replace chromium, the extract was used as a base in an aqueous medium at 5% dilution, where a percentage of purity of 55.97% concentration was obtained, This medium was the one with the best reference values, so that after proceeding with the tanning process, good results were obtained in terms of physical (strain, elongation) and sensory (softness, fullness, roundness), reaching optimal margins for sale and use, and thus avoiding the harmful and polluting effects of chromium to the environment, in addition to the fact that through the use of this extract, production costs were reduced by almost half, thus leaving higher returns.