Chapter 11: Problem 13
How is ethyl alcohol prepared from starch? Give equation.
Short Answer
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Question: Explain the process of preparing ethyl alcohol (ethanol) from starch.
Answer: The preparation of ethanol from starch involves four main steps: 1) conversion of starch to glucose through hydrolysis, 2) conversion of glucose to pyruvate via glycolysis, 3) conversion of pyruvate to acetaldehyde through decarboxylation, and 4) reduction of acetaldehyde to ethanol. This process starts with the hydrolysis of starch in the presence of water and an acid or enzyme, followed by glycolysis to produce pyruvate. Pyruvate is then converted to acetaldehyde through decarboxylation under anaerobic conditions, and finally, acetaldehyde is reduced to ethanol using NADH and hydrogen ions.
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