HORTICULTURE

Detailed explanation-1: -Among fruits, citric acid is most concentrated in lemons and limes, 1 comprising as much as 8% of the dry fruit weight.

Detailed explanation-2: -Fruit acidity in cultivated apples is majorly determined by malic acid, which accounts for up to 90% of total organic acids [6]. Citric acid also exists in mature apple fruits; however, it exhibits a very low to undetectable concentration in cultivated apple [14, 15].

Detailed explanation-3: -One tablespoon of bottled lemon juice is equal to 1/4 teaspoon citric acid. This means that if a recipe instructs you to add 2 tablespoons of bottled lemon juice to each quart jar before canning, you can easily swap in 1/2 teaspoon of citric acid.