Propionic acid, also known as propanoic acid, with chemical formula C3H6O2, is an organic acid used as a food additive and found naturally on the skin and in the gastrointestinal tract. It is a byproduct of fermentation reactions and is also produced industrially from ethylene or ethanol and carbon monoxide.
What contains propionic acid?
Consider propionate, or propionic acid, a naturally oc-curring fatty acid and a common preservative found in everything from bread and animal feeds to pudding and cheese.
What foods are high in propionic acid?
Propionic acid (PA) is found in the diet as a short-chain fatty acid that is present naturally in milk and milk products such as cheese and yogurt (Lee et al., 2010) .
