Descripción organoléptica y anatómica de la madera de cinco especies forestales mediante tinciones, procedentes del sector Pepinales, cantón Alausí, provincia de Chimborazo.

Abstract

This research proposes: Organoleptic and anatomical description of the wood of five forest species by means of staining in Pepinales sector. Alausí town. Chimborazo province. The organoleptic characteristics were determined through the sensory organs: smell. touch, sight. taste: using wood samples from the five forest species that are now part of the xyloteca of the Escuela Superior Politécnica de Chimborazo. 2cm cubic samples of the five forest species were used for the anatomical characteristics. The samples were placed in glass jars with properly labeled distilled water, undergoing the softening process. at a temperature of 121 Celsius degrees. at a pressure of 1.1 atmospheres in the autoclave: with the help of the microtome. histological sections of the transverse. tangential and radial part were made. obtaining wooden sheets which were placed in the Safranina. Astra blue stain and a 1: 1 combined stain (Safranina / Astra blue). These samples were placed on slide plates and coverslips, being observed through the microscope with their proper data recording. performing a statistical analysis of the five forest species. 20 grams of fresh sawdust and distilled water were used to determine the pH. It was shown that the five species were different. resembling in grain and texture in the organoleptic characteristics. It was found that at least one characteristic was different from the other species in the anatomical characteristics. Thus. the alternative hypothesis was acepted, being the species Cinchona pubescensla species that presented more pores and Oreopanax ecuadorensis which presented less pores, the species Delostoma integrifoliumes presented the largest pores and Hieronima macrocarpala presented smallest pores. The combination of the two stains had a better result when observing all the anatomical parts of the wood.