BIOMOLECULES AND ENZYMES

Detailed explanation-1: -The longer the enzyme is exposed, the browner each slice will become. Lemon juice contains citric acid, which is a natural anti-oxidant. Therefore, when you apply lemon juice to apple slices, it helps to prevent the oxidation process.

Detailed explanation-2: -This is known as enzymatic browning. Keep cut fruits, such as apples, pears, bananas, and peaches from turning brown by: Coating them with an acidic juice such as lemon, orange, or pineapple juice. Use a commercial anti-darkening preparation with fruits, such as Fruit-Fresh®*, and follow the manufacturer’s directions.

Detailed explanation-3: -Adding citric, ascorbic or other acids, such as vinegar, lowers the pH and prevent enzymatic browning. During enzymatic browning, polyphenols react with oxygen. If something else reacts with the oxygen, enzymatic browning won’t occur.