Many do, but well known ones are citrus fruits, which all contain citric acid. Also vinegar contains acetic acid.
Acids are classified into two groups: Organic and Inorganic.
Organic acids have chemical formulas they contain carbon (C) and [for the most part] oxygen (O). A few foods with organic acids are:
Apples --- Malic acid (C4H6O5)
Oranges --- Ascorbic acid (C6H8O6) and Folic acid (C19H19N7O6)
Grapes --- Tartaric acid (C4H6O5)
Vinegar --- Acetic acid (C2H4O2)
Soured Milk --- Lactic acid (C3H6O3)
Other acids that DO NOT contain carbon. (*Please note, an acid can contain oxygen and still be considered inorganic. As long as it does not contain carbon, it is classified as inorganic.) Some things with inorganic acids:
Stomach acid --- Gastric acid
Consists mainly of Hydrochloric acid (HCl), but also contains some Potassium chloride (KCl) and Sodium chloride (NaCl)
Soft Drinks --- Phosphoric acid (H3PO4)
All. The definition of an organic compound regards molecules that contain the element carbon. Carbon is the element that comprises Earth's life. Thus, what comprises processed and fresh foods are carbohydrates, vitamins, fiber, protein - all organic molecules by definition.
Corn
Citrus Fruits
Coffee
Distilled Water
Citrus fruits contain large amounts of acid.
Also, candies such as 'Sour Patch Kids' and the like contain a sour powder that is extremely high in acid.
vinegar contains acetic acid
secret.....
Proteins and nucleic acids are organic macromolecules that contain nitrogen.
Nucleus acids
Fatty acids contain carboxyl groups. The functional group of fatty acids is -COOH. There are 2 types of fatty acids called saturated and non saturated.
All vegetables contain organic acids.
Only carboxylic acids contain carboxyl groups. Only organic acids have them--obviously, since an organic acid contains carbon and so does a carboxyl group. So...most acids don't contain carboxyl groups.
All foods contain organic compounds.
All foods contain organic compounds.
Proteins and nucleic acids are organic macromolecules that contain nitrogen.
Waxes are esters formed by condensing organic fatty acids and long-chain (fatty) alcohols. So they contain organic acids, but are not acids themselves.
Foods contain organic compounds.
There are some studies that claim organic foods contain more nutrients, but other studies show they do not.
there are quite a few foods which contain acids such as sour milk, vinegar,coke,tea, coffee etc.hope that helps
Foods that contain mold include mushrooms, cheese, buttermilk, breads, sauerkraut and food that contain vinegar. If a person has allergies to mold, these would be the foods that they should avoid.
Organic foods are as limited as possible in inorganic fertilizers, pesticides, and herbicides. They also do not contain growth hormones. Non-organic foods may contain growth hormones and may have been treated with non-organic fertilizers, pesticides, and herbicides.
Many organic molecules contain hydrogen atoms and are not considered acids. Specifically, when carbon is bonded to hydrogen, this is considered an organic bond. There are organic acids as well though. In order for a substance to be acidic, it needs to have ionic hydrogen present (i.e. H+).
Nucleus acids
carboxylic acids