TUTORIAL QUESTIONS FOR INDUSTRIAL FERMENTATION

TUTORIAL QUESTIONS FOR INDUSTRIAL FERMENTATION

1. What do you understand by the word fermentation?

2. Mention the conditions that are favourable for fermentation to take place

3. State the types of micro-organisms that can be used in fermentation

4. What is an enzyme?

5. Give 5 characteristics of enzymes

6. Describe the role of zymase in the fermentation process of ethanol production from glucose

7. Define industrial fermentation?

8. State and explain the types of fermentation processes you know

9. How does pH, temperature and aeration  affect the following types of fermentation;

a. submerged fermentation  b. solid state fermentation c. surface fermentation

10. Mention 3 differences between batch and continuous fermentation

11. Describe the fermentation processes used in the production of lactic and fumaric acid.

12. Mention 10 substrates/raw materials and micro-organisms that can be used in fermentation process

13. Explain the role of hexacyanoferrate (HCF) and calcium carbonate (CaCO₃) in the production of citric acid

14. With a suitable chemical equation, give the examples and end product of using homofermentative and heterofermentative organisms in the fermentation process of lactic acid production.

15. Mention 2 types of micro-organisms used in the production;

(a). Citric acid (b). Acetic acid (d). Fumaric acid (e). Itaconic acid

16. How does pH affects the fermentation process of itacaonic acid production?

17. Mention 5 differences between solid state fermentation and submerged fermentation.