What types of acids are found in oranges?

Citric acid, found in all citrus fruits, adds the sour taste to lemons, limes, grapefruit and oranges. Citric acid is added to other food products, such as candy, soda and juice, to make them taste sour. Its acidic quality makes it useful as a preservative for canned foods and preserving meat. read more

Citrus fruit in general contain mostly Citric acid. Other acids: Malic acid. Oxalic acid (mainly in the peel) Vitamin C (ascorbic acid) Tartaric acid. Lactic acid. read more

Citric acid, found in all citrus fruits, adds the sour taste to lemons, limes, grapefruit and oranges. Citric acid is added to other food products, such as candy, soda and juice, to make them taste sour. Its acidic quality makes it useful as a preservative for canned foods and preserving meat. Another use for citric acid is as a household cleaner. Malic Acid. Oranges, apples, rhubarb, tomatoes, peaches and cherries are a few of the fruits that contain malic acid. read more

Formic acid found in oranges acts as a strong irritant when concentrated. Oranges contain harmless amounts of formic acid, but volatile oils in the orange rind could cause dermatitis, hives and asthmatic symptoms in some individuals. read more