Question

What is fermentation? [Textbook Question 8b pg no.95]

Answer 1

It is a process in which substances are broken down into simpler substances.

• Microorganisms such as yeast, bacteria usually play a major role in the fermentation process.
• Beer, bread, kimchi, wine and yoghurt are made from this process.

The three distinct types of fermentation that are commonly used are:

• Lactic acid fermentation, the bacteria convert sugar or starches into lactic acid.
• Acetic acid fermentation.
• Ethanol fermentation/alcohol fermentation.