Question

Which microorganism is used in bread dough fermentation to produce carbon dioxide?

Options

• Lactobacillus bulgaricus

• Penicillium camemberti

• Saccharomyces cerevisiae

• Streptococcus cremoris

Answer 1

Saccharomyces cerevisiae, commonly known as baker's yeast, is used to ferment bread dough. This yeast ferments sugars in the dough and releases carbon dioxide (CO₂), which becomes trapped in the dough, causing it to rise and become porous before baking.