Chapter 10 - Biotechnology
- Created by: stef17
- Created on: 04-05-16 10:12
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- Chapter 10 - Biotechnology
- Reasons for using microorganisms
- Rapid life cycles - large population can be built up quickly
- Asexual reproduction ensures the bacteria are genetically identical
- Specific & simple requirements for growth
- Can be grown from industrial waste products
- No ethical issues
- Variety of metabolic pathways so can be incredibly useful
- Examples of products made using biotechnology
- Manufacturing mycoprotein
- Done using continuous culture
- Continual input and output
- Manufacturing mycoprotein
- Advantages
- Batch culture
- Relatively easy to set up
- Fermenter can be used for a different process once that batch is done
- If contamination occurs, only one batch needs to be thrown away
- Continuous culture
- Small vessels can be used
- No 'down time' needed
- Batch culture
- Asepsis
- 'without microorganisms'
- Prevents contimantion
- Immobilising enzymes
- Can be done by any of the following techniques: Cross-linking, carrier-binding, enclosing them in micro-capsules or by inclusion
- Makes enzymes reusable and less likley to be denatured
- Reasons for using microorganisms
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