Obtención de Acido Poli Láctico a partir de lactosuero para la fabricación de empaque primarios.

Abstract

In the province of Chimborazo, Riobamba Canton, obtaining acid was evaluated polylactic (APL), from whey for the manufacture of primary packages, having a total of 16 experimental units, distributed in 4 treatments (4 plasticizer levels 1.5, 2.0, 2.5 and 3.0%) and 4 replications in each. The Experimental results were analyzed by analysis of variance and mean separation test with Tuckey, in order to determine the level optimum. Determining the characteristics of the samples used for perform mechanical testing of bioplastic, they had thicknesses between 1.0 and 1.30 mm, which are statistically different in change in width (10.03 to 9.68 mm) and cross section (between 10.40 and 10.81 mm²) were statistically equal. Based mechanical tests, it was concluded that the best responses They got with the use of 3.0% of APL, with a modulus of elasticity of 9.44 kg / cm², tensile maximum load (1.07 kg), maximum resistance before breaking (10.22 kg / cm²), and this bioplastic demoted 42 days; so it is recommended develop bioplastic using 3.0% polylactic acid obtained from whey.