Table 6. Effect of extrusion parameters on in vitro protein digestibility.

Raw material	Barrel temperature	Moisture	Screw speed	Reference
Defatted Quinoa and Chia	+			( Sánchez et al., 2022)
Sesame Flour	+			( Ruiz et al., 2022)
Pea Flour	+			( Qi et al., 2021)
Amaranth Flour	+	-	+	( Atukuri et al., 2019)
Corn and Soy Protein	+	+	+	( Omosebi et al., 2018
Amaranth-Based Mixture	-	-		( Akande et al., 2017)
QPM flour	+		+	( Reyes et al., 2003)

QPM = Quality Protein Maize.