extrusion Flashcards
1
Q
Extrusion
A
high temperature, short time process in which moistened, expansive, starchy foods are foced through a special opening
2
Q
extrusion process defn
A
set of mixed ingredients are forced through a die with a deisgn specific to product
3
Q
machine?
A
extruder
4
Q
mix?
A
extrudate
5
Q
The process
A
- Raw materials ground to a particular size
- Dry mix is past through a pre-conditioner and other ingredients are added
- Steam is injected
- extrudate is passed through the extruder
- extrudate is cut by blades on output
- product is cooled and dried
6
Q
expansion ratio
A
extruded product puffs and changes texture due to force of reduction