EXTRUSION PARAMETERS AND PRODUCTIVITY IN ENRICHING RICE FLOUR WITH CARROTS

Abstract

This article examines the influence of carrot flour concentration, mixture moisture content, and screw speed on extrusion productivity in the production of fortified rice products. The study was conducted using an EK-40 single-screw extruder with moisture content varying from 14% to 20% and the addition of up to 20% carrot flour. It was found that the vegetable additive content does not significantly affect mass flow rate, while moisture content and screw speed are the determining factors. Productivity values during the experiments ranged from 3.96 to 6.12 kg/h. The comparable impact of key factors is confirmed by analysis of the resulting regression model. The increase in product yield is due to a decrease in material density and a reduction in its processing time in the extruder channel. The results are important for fine-tuning the production parameters of rice-carrot composite products.