Does citric acid contain amino acids?

Michael Patterson and Eric Mosher have give good answers. The point is that "citric acid" is a name of a specific compound, not a general name of a class of compounds found together. read more

No, citric acid does not contain amino acids nor is citric acid an amino acid. Citric acid is a 6-carbon biomolecule that is very important in the Krebs Cycle/Citric Acid Cycle/Tricarboxylic Acid (TCA) Cycle. Citric acid is formed via the condensation of acetyl CoA and oxaloacetate, which is the first step in the Krebs Cycle and is catalyzed by the enzyme citrate synthase. read more

For example, citric acid and malic acid are found in fruits and vegetables. Vinegar's tartness comes from another acid in coffee: acetic acid. Coffee also contains lactic acid, which is found in fermented products such as yogurt and is used to add acidity to soft drinks. read more

As such, tomatoes contain relatively high levels of organic acids, such as citric acid, which strongly influence their flavors. The acid contents of tomatoes vary widely and depend on many factors, although certain acids are always more predominate than others. read more