Mycoprotein and Penicillin
Microorganisms can be used to grow Mycoprotein (meat substitute)
- Mycoprotein is a single celled fungi.
- A fungus called 'Fusarium' is the main source of mycoprotein.
- In a fermenter, glucose is supplied t the mycroorganisms as food.
- The fungus respires AEROBICALLY.
- It is very important ot to let any other icroorganisms contaminate the fermenter, so EVERYTHING IS STERILISED.
Penicillin is made using Mould grown in Fermenters.
- The mould is called Peniccilium Chrysogenum. The mould produces the antibiotic.
- Grown in a liquid culture medium containg sugar, and other nutrients.
- The sugar is used up as the mould grows.
- Only when the mould is running out of nutrients does it start to make penicillin.
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Microorganisms in Industry.
Microoorganisms are grown in fermenters on a large scale.
- Food provided in the form of a liquid culture medium, more can be pumped in.
- Air pumps supply oxygen to the microorganisms.
- Microorganisms produce heat so the fermenter must be cooled. (cold water jacket) the temperature is monitored with instruments.
- The righ PH is needed, instruments measure this.
- Sterile conditions are needed to prevent contamination.
- To stop the microorganisms from sinking down to the botton, a stirrer keeps them moving, and also maintains the temperature.
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