Figure 1: Mutual interaction effect of barrel exit temperature (BET, °C), screw speed (SS, rpm) and feed rate (FR, kg/h) on the α-linolenic acid retention during flaxseed meal production at: (A) feed rate−FR 60 kg/h; (B) at screw speed−SS, 110 rpm; and (C) at barrel exit temperature−BET, 110 °C