Anaerobic fermentation technology - Seoul National University · 2019. 9. 3. · The way to...
Transcript of Anaerobic fermentation technology - Seoul National University · 2019. 9. 3. · The way to...
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Environmental Engineering Experments and Design
Soil Quality Lab
Kyoungphile Nam
Anaerobic fermentation technology
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Objectives
Understanding the difference between respiration and fermentation
Understanding the primary and secondary fermentation
Understanding the importance of the environmental condition on
fermentation process
- ReferencesEnvironmental Biotechnology (Rittmann, McCarty)Lehninger 9Principles of Biochemistry (Nelson, Cox)
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Respiration vs Fermentation
36-38
2-5
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Glycolysis
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Glycolysis
Glucose
Pyruvate
Acetyl-coA
Lactate
Ethanol
Acetate
Butyrate
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Anaerobic Fermentation
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Anaerobic Digestion
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The way to manipulate the fermentation process
- When pure culture microorganisms are used, it is possible to change the composition and amount of the fermentation product produced by manipulating a specific gene involved in metabolism.
Genetic modification
- It is difficult to use pure cultured microorganisms in the general environment: it is very difficult to control fermentation products by genetic modification
- By controlling the environmental condition in the reactor, engineers can enrich shape target microbiome and select appropriate metabolismex) pH, Temperature, HRT, SRT, OLR
Controlling the environmental condition