ABSTRACT
Fig. 2 shows a single-screw extruder configurations com-
monly used for food processing. It consists of a preconditoner,
a main drive unit, a barrel, one or two screws, and a die.
Extruders are typically classified into two categories: single-
screw extruder and twin-screw extruder. Historically, single-
screw extruders have been used extensively in the food indus-
try due to their low cost, simplicity, and robustness. However,
twin-screw extruders have gained popularity because of their
versatility and other advantages over single-screw extruders.
PRECONDITIONER
