Curtición de Pieles de Cuy con la Utilización de tres Niveles de Curtiente Mineral Sulfato de Cromo

Abstract

In the leather tanning laboratory of the FCP ESPOCH the guinea pig leather tanning was evaluated with three levels of mineral chromium sulfate tanning (6, 7 and 8%), bivariate modeling under a completely randomized design, with 3 treatments, 15 repetitions and three consecutive tests. The evaluation of the physical characteristics showed highly significant differences between averages, reporting the highest results in the treatment T3 (8%). with 64.87 N / cm of flexibility, 9.33 mm of tear resistance and 49.67% percent of elongation; and also all these exceed the minimum standards required by the IUP for light skin, as well as with 8% sulfate were recorded the highest scores of softness and delicacy of flower, with 4,58 and 4,56 points of 5 as references according to the proposed scale of Hidalgo, L. (2010), respectively. The highest benefit cost of the research was 24%, was recorded with the use of 8% of sulfate (T3), and it was higher than the Utilities that other type of industrial activities have had. And above all we can provide the market a raw material last embedded technology, for this reason it's recommended to tan guinea pig skin with 8% of sulfate to give a higher value added at the production of this specie, also could be used a by - product that wouldn't have a value if it wouldn't be exported to the international markets.