Producción de dextrinas a partir de almidón nativo de yuca por ruta seca en una agroindustria rural

Abstract

In a rural agricultural industry, cassava variety MCOL 1505 was used to obtain dextrin using a dry route developed in the laboratory and tested in a pilot plant. The optimum concentration of starch was 37.8 (w / v) and the final pH had an average of 3.1. The pre-drying process was conducted with air between 55 and 60 °C at a flowrate of 0.21 m3/s with a homogenization system, during 120 minutes for pellets of 3 to 5% moisture. For the conversion of cassava to dextrin an airflow of 0.1 m3/s at 150 °C and a homogenization system were used, being the conversion time of 45 minutes. Cassava dextrin of quality similar to the commercial corn starch dextrin was obtained. It was found that experimental conditions determined in the laboratory continued to be valid at industrial level except for the mixing and drying operations.