Naturally occuring propionic acid in foods marketed in South Korea. Propionic acid is a major contributor to the characteristic nutty sweet flavour of Swiss-type cheeses, including Emmental, Gruyère, and Appenzeller, and, consequently, Propionibacteria play an important role in the production of propionic acid in cheese ( Lee et al., 2010 ).
Apr 24, 2019· "Propionic acid occurs naturally in various foods including butter and cheese. … it is a normal intermediary metabolite. …demonstrated low acute toxicity after oral administration to mice or rats.Microbial assays for mutagenicity of propionic acid and …
Propionic acid is used as a food preservative, while naturally formed propionic acid in some fermented foods was found. Organic acids occur in dairy products as a result of normal animal metabolism and breakdown of milk proteins, fat, lactose and citrate during manufacture and storage.
Propionic acid is an excellent raw material as it is stable, cheap and safe and can even be used as a food additive. Propionic acid is a volatile fatty acid (VFA) formed in the rumen of ruminants by bacterial fermentations.