TANNIC SUBSTANCES PRESENT IN PARTS OF (MIMOSA CAESALPINIIFOLIA) IN COMMERCIAL PLANTATION OF 5 YEARS

Abstract

ABSTRACT: Sabiá (Mimosa caesalpiniifolia Benth.) is an arboreal species, native to the Caatinga biome, of wide range and relevant economic interest due to its potential for logging and fodder. Studies have been carried out to find species from the Northeastern region of Brazil with taniferous potential due to the uncontrolled exploitation of the Angico vermelho (Anadenanthera colubrina (Vell.) Brenan) for the exploitation of the bark and its use in tanning. Based on this, this study had the objective of analyzing leaves, thin branches and bark of the species sabiá, as to its characteristics as a producer of vegetable tannins. The materials were dried, powdered and classified, using the parts that have gone through a sieve of 16 “mesh” (1.00 mm) and were retained by 60 “mesh” (0.25 mm). For extractions 25 grams of each material was used. After extraction, the material was passed through a 150 “mesh” (0.105 mm) sieve of flannel tissue and filtered through a sintered glass funnel of porosity 2, and then concentrated. Total solid content was determined (TST), and also the tannin content (TTC). All the parts of the plant analyzed had condensed tannins. However, the bark of the plant showed a higher concentration of condensed tannins (8.38%) and less amount of non tannins (1.22%), indicating that inside the extractive there is a quantity of considerable tannin. It is concluded that the bark of the sabiá is potential as a producer of vegetable tannins, and it is necessary to carry out studies to identify its potential in the tanning of furs among other forms of uses.KEYWORDS: Dry forest, Non-timber forest product, Vegetable tannins.