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.