1. Fermentations are nowadays defined as a processes that do not involve
Pasteur defined “FERMENTATION” as life in the absence of oxygen
Fermentations are nowadays defined as a processes that do not involve
electron transport chains that use oxygen, nitrate or other electron acceptors
The majority of fermentations generate ATP by substrate level phosphorylation
Microorganisms can be classified as
Facultative anaerobes
Strict anaerobes

2. Ethanol Fermentation
Yeast

3. Bacteria
PULQUE
Zymomonas mobilis

4. LACTIC ACID FERMENTATION
Homofermentative pathway

5. HETEROFERMENTATIVE PATHWAY

6. BIFIDUM PATHWAY

8. BUTIRATE AND BUTANOL/CETONE FERMENTATIONS

13. Linear and branched fermentative pathways

16. MIXED ACID FERMENTATION

23. METHANE FERMENTATION

26. ATP synthesis only occurs due to protonmotive force