31 Questions
What is the primary purpose of a bioreactor?
To produce various chemicals and biological reactions
What are the key components of a fermentor/bioreactor?
Special components for heating, mixing, and aeration
What does the design and mode of operation of a bioreactor depend on?
Product value and scale of production
What differentiates fermentors from bioreactors?
There is no difference, they are synonyms
What is the volume range for fermentors used in industrial scale production?
Up to 500,000 litres
What does a good bioreactor design aim to achieve?
Improve productivity and provide higher quality products at lower prices
What is the primary purpose of a bioreactor?
To support life of cell and tissue cultures
Why is it important for the material used in bioreactor construction to tolerate steam sterilization?
To prevent corrosion
Which type of vessel is usually used in small-scale industries?
Glass vessel
What is the purpose of the cooling jacket in the fermentor vessel?
To remove excess heat
What is the function of the aeration system in a fermentor?
To deliver oxygen to the fermentation media
Why is an agitator system important in a bioreactor?
To control foam formation
Which property should the material used for bioreactor construction NOT have?
Corrosiveness
What are the sizes of bioreactors designed for?
From microbial cell (few mm3) to plant scale (2 – 500 m3) for large volume
What does the image source credit in the text refer to?
Source of the bioreactor image in the text
What is the primary function of a bioreactor?
To grow microorganisms under optimal conditions to produce metabolites
What are the key components of a fermentor/bioreactor?
Aeration system, heating component, and agitation system
Why is it important for the material used in bioreactor construction to tolerate steam sterilization?
To maintain sterility and prevent contamination during operation
What does a good bioreactor design aim to achieve?
Improved productivity and higher quality products at lower prices
What differentiates fermentors from bioreactors?
Volume capacity and product value
What does the design and mode of operation of a bioreactor depend on?
Optimum conditions required for desired product formation
What is the purpose of the sealing assembly in a bioreactor?
To provide a means for charging and emptying the reactor
Why is the glass vessel usually used in small-scale industries as a fermenter vessel?
Because it is non-toxic and corrosion-proof
What are the two separate aeration devices used in a fermentor?
Sparger and cooling jacket
Why is the cooling jacket necessary for a fermentor?
To remove excess heat generated during fermentation
In bioreactor design, what are the important properties that the construction material should have?
It should not be corrosive, not add any toxic substances, tolerate steam sterilization, resist pH changes
What does the size of bioreactors vary depending on?
The application
What is the primary function of an agitator system in a bioreactor?
To mix microbial cells through the liquid culture medium
Why is stainless steel vessel used in large-scale industries as a fermenter vessel?
Because it can tolerate high pressure and resist pH changes.
What does the material used for bioreactor construction NOT have to be?
Resistant to pressure.
What is the purpose of an oxygen delivery system in a bioreactor?
To ensure proper aeration and oxygen availability.
Test your knowledge about bioreactors, also known as fermentors, which are vessels used for the production of chemicals and biological reactions. This quiz covers the features and functions of bioreactors, including aeration, agitation, temperature and pH control, and waste removal.
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