Industrial Fermenter Flashcards
(10 cards)
1
Q
What is the function of paddles in the fermenter
A
- distribute food / nutrients
- distribute oxygen
- even out temperature
2
Q
Why does pH in a fermenter need to be controlled
A
- optimum pH for enzymes
- to prevent denaturation
3
Q
What parts of the fermenter are responsible for regulating temperature
A
- water jacket
- insulation
- temperature probe
4
Q
Why is fermenter cleaned with steam before use
A
- to kill microorganisms / sterilize / aseptic
- prevents competition from unwanted organisms
- prevent chemical contamination of products
5
Q
Function of air supply
A
- supplies oxygen for aerobic respiration
6
Q
Function of air filter
A
- removes microorganisms
- to prevent competition / contamination
7
Q
Function of stirrers / paddles
A
- distribute heat evenly
- mix contents / prevent settling
8
Q
Function of cooling jacket
A
- maintain / control temperature
9
Q
Function of steam
A
- sterilizes
- produces aseptic conditions
- removes microorganisms
10
Q
Why remove microorganisms in the fermenter
A
- no contamination
- no competition
- aseptic conditions
