Obtención de Extracto Tánico y Extracto Gálico a partir de la Harina de Vaina de Guarango (caesalpinea spinosa) (mol.) o. kuntz, a Escala Laboratorio.

Abstract

"The present research was based on obtining tanic xtract and gai abstract, on scale laboratory, tom the our of the Guarango' ase (Cacsafpia spnosa (Ma) O Kun, in Center of Bioforesta at Facultad de Recursos Natarlcs.

The applied methods were inductive and experimental ones. The cxpcrimental method allowed to as much determine th variables o ho process for th Isching f the four of guarangos case like for the Abe obtnining of gallo extract and the gallic acid «concentration, sespecincly. The experimental Ímelhod allowed to <subli the prcliminarytéts.Thc used technique o cany out the leching process was dynamic maceraion, that consisicd of maimaining the four and Abe solvent with constan «stan in an agittion equipment The solvent used was disc water. < 1 mun izo our partici was used The relation raw material sovcnt was 55 g of our and 220 mL. of isc water. Thc optimal tim for Iachining was 60 minutes to pH 3.05 ad room tempera, whose data were dterminod wit a potemiomeer, Af the leachining roces it was come to ak in Buncher fumel and to dy the tamic extract in stove to smaller temperature o 60 “C; soon o determine the percentage of vil.

The tannic extract was characterized, reconituted with water, dtemminng refuctive index, density, pH solubily ad it was determined ts the our and hc tama extract “ona anni ol pyroga loli type.

In order to determine he percentage of tamns in Mour and in hc tamic cxtrct, the Method of Folin - Cioeate was used; the results were calculated from hc cquation of th sraight line, whose equations were obtained by the calibration chars of tamic acid and gal aci, having oblained themselves a percentage o 51.7105 and 549605 g of. aci tamnins/ 100 g MS in th Nou and intamni cxrct respectively.

In the other hand, fo hc obtaining of gai extract th tamic abstract was used like rav material, which was hydrolysod with sodiumhydroide and hydochlore aci, bob with 2 Normal concentration and taken to a cquipmont of cbb tido by th lpsc af 20. hour

In order to quamiy th gllc acid concentration prescnt in e gali extract hc Method of Folin — Ciolcaeu was used: lc results were obtain from the cquaticn of he sirigh line from tb calibration char of gal cid obtining a concentration of 559.33 mg gal acid] and for the gal acid idemificion in 1he cxuct lt was made reactions of characterization wiih potassium cyanido, feo chlrid, slver nitrato (scan up) ad reagent o Feeling

lt was feaiblelo obtain tamni and Gall extract on sale laboratory, from the our of guarangos case (Caesalpini sinasa (Mol) O. Kun); therefore laboratory technique Was mado that allowed o cstablish ts procss of obtain.

Its recommendod that both extacs are not stored by more han six months, since this would afec his physical characteristics."