| Section2 = | Section3 = }} Propionyl-CoA is a coenzyme A derivative of propionic acid. Metabolism in animals Production There are several different ways in which it's formed: It is formed as a product of beta-oxidation of odd-chain fatty acids, which occur in meat of ruminant animals. It is also a product of metabolism of isoleucine and valine. It is a product of alpha-ketobutyric acid, which in turn is a product of digestion of threonine and methionine. Metabolic fate In mammals, propio… (More on Propionyl-coa)