Extrusion (Lecture 21)

Question 1

Extrude Definition

Answer 1

To force, push or press

Question 2

Does Low Moisture Content Increase Friction and Expansion

Answer 2

Yes

Question 3

Does Low Moisture Content Increase Friction and Expansion

Answer 3

Yes

Question 4

Extruder Zones

Answer 4

Kneading Zone
Inlet Zone
Cooking Zone

Question 5

Steps of Extrusion Process

Answer 5

Ingredient Feeding
Pre-conditioning
Shaping/Dying
Cutting/Knife
Extruder

Question 6

Types of Energy in Extrusion

Answer 6

Thermal and Mechanical

Question 7

What is the extrusion processing widely used for

Answer 7

Value addition to grains and agriculture commodities

Question 8

What is the Market for Breakfast Cereal in the United States

Answer 8

12 Billion U.S.

Question 9

Market For Plant - Meat/ Texturized Vegetable Proteins (Pasta)

Answer 9

2 Billion U.S. (2 Million Tons)
13.5 Million Tons Total World Production

Question 10

Confectionary

Answer 10

Twizzlers
Skittles
Mints

Question 11

Annual Consumption in Italy

Answer 11

26 kg/per person

Question 12

How Much Pet Food is in U.S. Market

Answer 12

30 Billion

Question 13

Extrusion Applications

Answer 13

Continuous Reactor and Ethanol

Question 14

Extrusion Systems

Answer 14

Preconditioned
Extruder Barrel
Die and Knife Assembly

Question 15

Extruder Functions

Answer 15

Cooking
Shaping
Expansion
Shearing
Texture
Mixing
Pasteurization
Dehydrating

Question 16

Energy in Extrusion Utilized For

Answer 16

Temperature Rise
Pushing through die
Water Vapor
Product Puffing