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Flashcards in Food Manufacturing Deck (17)
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1

Major processes in feed manufacturing

ingredients receiving
griding
batching and mixing
conditioning and pelleting

2

Receiving center ingredients terms

unprocessed grains
processed bulk ingredients
soft feed ingredients
heavy feed ingredients
liquids
micro-ingredients

3

Receiving center equipment

Scales
unloading mechanisms
truck dumper
mechanical scoops
front end loader for barges
receiving hopper and conveyors
cleaning/screening devices

4

Grinding operation and grinding equipment

What are factors to consider?
target particle size
grinding capacity
energy consumption
maintenance cost
environmental safety

5

Hammer mill operation

Particle sized is controlled by the following:
screen size; hammer tip speed; air assist system; hammer setting

6

Roller mill operation

Grind size is controlled by the following:
number of roll pairs; roll gap; roll speed; corrugations; corrugation numbers

7

Advantages of hammer mills

-ability to produce different particle sizes; works well with fibre
-low cost of investment vs roller mills; low maintenance cost
-simple to operate

8

Disadvantages of hammer mills

-particle size variability is high
-energy not efficiently used vs roller mill
-generates heat
-higher noise and dust production

9

advantages of roller mills

-low energy consumption; low level of noise vs hammer mill
-low increase in heat production; high particle size uniformity

10

disadvantages of roller mills:

-high investment costs; not so easy to operate; high maintenance
-does not work well with fibrous materials; requirement for cleaning is tedious

11

Types of feed mill watching systems:

pre-batch grind; post-mis grind; post-batch grind; post-pellet blend

12

Types of batching equipment

bins systems; tote bag system; scales (big or small); weigh buggy

13

Types of mixers

paddle; twin-shaft paddle; double ribbon; twin-shaft ribbon; vertical mixer

14

What is conditioning?

a process where live steam is injected into the mash to create a mixture that can be formed into a pellet

15

Purpose of conditioning

-increaases mash moisture and temp; activates natural adhesives founding ingredients; softens the feed particles for increased surface binding during compression

16

Some of the reason why feed are pelleted

improve palatability; decrease wastage; destroys pathogens/microorganisms; reduce ingredient segregation

17

Pellet vs Mash feed

Pellet: small particle size; allows for high inclusion of alternative feed ingredients; variable inclusion of alternative ingredients; higher inclusion of fat

Mash: higher particle size; works well for grain based formula; lower manufacturing cost