Modelamiento de las reacciones químicas para el tratamiento de leche contaminada con oxitetraciclina a través de la aplicación de lacasa.

Abstract

The objective was to model the chemical reactions generated by the treatment of milk contaminated with oxytetracycline through the application of laccase, using MATLAB and Simulink software. The simulation was carried out with 30 samples of raw milk with oxytetracycline concentrations between 200µM and 300µM, with laccase at a concentration of 0.01 µM, for each liter of contaminated milk, during a contact time of 26 hours, for a volume of 75L. For the verification of the operation of the modeling and analysis of the process capacity, the MINITAB software was used. The results of the analysis validate that the modeling works and that the process is adequate since the concentrations are within the permissible limits of oxytetracycline from the fifth hour of contact where a concentration of 80.18 µM is obtained. After 26 hours of contact, there is a concentration of 0.72 µM, which corresponds to 99.71% removal of oxytetracycline in raw milk and, according to regulations, the maximum limit of oxytetracycline allowed in milk is 100 µM. According to the results obtained in the simulated modeling, the effectiveness of laccase in reducing antibiotic concentrations above 200 µM and below 300 µM is verified.