What change would aspartame make in an acidic environment?

In an acidic environment, aspartame undergoes hydrolysis, which is a chemical reaction involving the breakdown of a compound by the addition of water.

Specifically, aspartame hydrolyzes into its component amino acids, namely aspartic acid and phenylalanine. The hydrolysis of aspartame is accelerated under acidic conditions due to the protonation of the amide bond, which makes it more susceptible to attack by water.

Therefore, in an acidic environment, aspartame would break down into its constituent amino acids, resulting in a loss of its sweetening properties.