| As a result of providing health benefits in direct expansion snack to differentiate from most of commercial product which raw materials based on starch components, purple corn was used as based ingredient to obtain functional snack from extrusion process. A study was conducted to investigate the effect of screw speed (300, 350 and 400 rpm), barrel temperature: H6 (130, 140, and 150 ◦c) and feed moisture (14.5, 16.5 and 18.5%) on the physical and functional properties of extrudates in snack production using response surface methodology(RSM) and box-behnken experimental design. The results had shown high correlations coefficients(R 2) of multiple regression equations about the relationship among product responses and process variables and no significant... |
