Acidulated?

To make sour or somewhat acidic. Foods are made sour to enhance the flavor or a solution is made acidic to preserve foods. Sour drops or lemon drops are examples of candy that has been acidulated to provide a sour flavor. Acidulated water is a solution that is made with small amounts of vinegar, wine, or lemon juice (lime juice can be substituted) to serve as a food preservative for keeping fruits and vegetables from browning after being cut.