Question

Which of the following is used in the formation of beer and bread?

• A. $Penicillium$
• B. $Mucor$
• C. $Saccharomyces$
• D. $Rhizopus$

Answer 1

The correct option is C $Saccharomyces$

Beer and bread formation :
Beer and bread are the products which require the process of alcohol fermentation carried out by yeasts. The commonly used yeast for this process is Saccharomyces.

Mechanism of alcohol fermentation :
Yeast produce enzymes like pyruvate decarboxylase and alcohol dehydrogenase that convert glucose into ethanol and carbon dioxide.
The steps in ethanol fermentation are as follows:


Utility of the products

• In beer making, the ethanol produced at the end of fermentation is suitably processed to form beer.
• In bread making, after alcohol fermentation of the dough, it is baked. The carbon dioxide that is trapped escapes because of the heat, giving the bread porosity.

Final answer
(C) $Saccharomyces$