Question

what is fermentation ​

Answer 1

Answer:

the chemical breakdown of a substance by bacteria, yeasts, or other microorganisms, typically involving effervescence and the giving off of heat.

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Answer 2

Answer:

Fermentation is a metabolic process that produces chemical changes in organic substrates through the action of enzymes. Microorganisms like yeast and bacteria usually play a role in the fermentation process, creating beer, wine, bread, kimchi, yogurt and other foods.