Question

Fermentation of sugar to yield alcohol is carried out by

• A. Raised temperature
• B. Microorganisms
• C. Zymase
• D. Decomposition of sugar

Answer 1

The correct option is C

Zymase

The production of alcohol from sucrose involves two main steps:-

• Conversion of sucrose into glucose and fructose in the presence of the enzyme, invertase.
• Conversion of glucose into ethanol and carbon dioxide occurs in the presence of zymase.

Saccharomyces produce enzymes like invertase and zymase.

Zymase is an enzyme complex that catalyses the formation of alcohol from glucose.

The following equation represents the role of zymase in the formation of ethanol:-

$C_6{H}_{12}{O}_6\stackrel{Zymase}{\to }2C_2{H}_{5}OH+2C{O}_2$