Determinación del contenido de taninos de guarango (Caesalpinia spinosa) (Mol) O. Kuntz en diferentes pisos altitudinales dentro del cantón Guano provincia de Chimborazo

Abstract

This research aimed to determine the Tannin content of the Guarango pod (Caesalpinia spinosa) in different altitudinal levels within the town of , Province of Chimborazo. The methodology adopted was qualitative and quantitative experGuanoimental. The concentration of tannins in the Guarango pod flour was determined using an aqueous extract by heating, simultaneously, the tannin content in the Caesalpinia spinosa extract was quantified using the Lowenthal method, using a solution of potassium permanganate (KMnO4) at 0.025N. To evaluate the variation in the tannin content, a statistical analysis was carried out in the InfoStat program using a completely randomized design in each study location. Using this methodology, the results obtained revealed significant variations in the percentage of Tannins of each of the analyzed samples, which correspond to different altitudinal ranges and the statistical analysis carried out determined that there were no significant statistical differences between the Tannin content by altitudinal levels. In this context, it was concluded that sample 3, located in the altitudinal range of (2601-2800) m, exhibited the highest tannin content, reaching 42%. This was followed by sample 2 with 41.13%, sample 4 with 40.25% and, finally, sample 1 with 37.13% of Tannins and the statistical analysis indicated that no statistically significant differences were observed in the Tannin content in relation to the different altitudinal levels.