Alcoholic Fermentation Process

A brief discussion on the process of alcoholic fermentation.

1. ALCOHOLIC FERMENTATION: PROCESS Jordan Pereira Arroyo Jr.

2. ALCOHOLIC FERMENTATION WHAT? is a biological process in which sugars are converted into cellular energy and thereby produce ethanol and carbon dioxide as metabolic waste products (Ethanol fermentation). WHERE? cytosol . WHO? Yeasts and, or other anaerobic organisms. WHEN? depends on yeast strain. Usual time is between 30 to 72hrs. HOW?

3. In aerobic organisms, pyruvate produced in Glycolysis is oxidized to CO 2 via Krebs Cycle , and the NADH produced in Glycolysis and Krebs Cycle is reoxidized via the respiratory chain, with production of much additional ATP. 

4. GLYCOLYSIS ALCOHOLIC FERMENTATION VS.

5. G lucose Pyruvate Acetaldehyde Pyruvate Decarboxylase CO 2 Ethanol Alcohol Dehydrogenase NADH, H + NAD +

6. The Alcoholic Fermentation Process:

7. The Alcoholic Fermentation Process:

8. Conclusion: C6H12O6    ====>   2(CH3CH2OH)      +        2(CO2)    +  Energy (which is stored in ATP)   Sugar      ====>       Alcohol             +   Carbon dioxide gas + Energy (Glucose)               (Ethyl alcohol) Anaerobic catabolism of sugar yields only two (2) “high-energy” bonds of ATP. Alcoholic fermentation allows glycolysis to continue by ensuring that NADH is returned to its oxidized state (NAD+). Pyruvate decarboxylase and alcoholic dehydrogenase are the initiating enzymes preceding alcoholic fermentation.

9. Thanks for listening!