Multiple choice

Which of the following steps is executed by Acetobacter xylinum in synthesising ascorbic acid?

  1. Conversion of D-glucose to D-sorbitol

  2. Oxidation of D-sorbitol to L-sorbose

  3. Oxidation of L-sorbose to 2-keto-L-gluconic acid

  4. Conversion of enol form of 2-keto L-gluconic acid to ascorbic acid

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B Correct answer
Explanation

Oxidation of D-sorbitol to L-sorbose is a microbiological process which involves the activity of Acetobacter xylinum.