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Question

What are important products of yeast fermentation?

A
Ethanol and acetic acid
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B
Butanol and glycerol
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C
Phenethyl alcohol, amyl alcohol and caproic acid
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D
All of the above
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Solution

The correct option is C All of the above
  • Fermentation is a metabolic process that converts sugar to acids, gases or alcohol anaerobically. It occurs in yeast and bacteria, but also in oxygen-starved muscle cells, as in the case of lactic acid fermentation.
  • By fermentation, the yeast species Saccharomyces cerevisiae converts carbohydrates to carbon dioxide, acetic acid and alcohols like ethanol, butanol, phenethyl and amyl alcohol.

  • Yeast produces carporic acid by the fermentation of corn.

Thus, the correct answer is option D.

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