As a healthier alternative to French fries, some fast food outlets offer pre-sliced, bagged apples as a side option. The ingredients list often reads, “Apples and Ascorbic Acid.” Ascorbic acid is another name for vitamin C. What role does the ascorbic acid play in the product?

Question

Multiple Choice
Ascorbic acid is a curing agent that prevents the growth of Clostridium botulinum.
Ascorbic acid is a color additive that makes the color of the apples appear more vibrant.
Ascorbic acid is a sequestrant that binds free metal ions and reduces the rancidity of fat in the apples.
Ascorbic acid is an antioxidant that prevents discoloration when the apples are cut and exposed to oxygen.

Answer 1

The correct answer is: Ascorbic acid is an antioxidant that prevents discoloration when the apples are cut and exposed to oxygen.

Ascorbic acid helps to prevent browning by inhibiting the enzymatic oxidation that occurs when apple flesh is exposed to air.