Peptone

Peptone is a nutrient mixture derived from proteins that have been broken down into smaller peptides and amino acids. It is typically produced by the enzymatic or acid hydrolysis of protein-rich materials like meat or milk. Peptones are widely used as a source of nitrogen and amino acids in microbiological culture media.

In food production, peptone is primarily used as a nutrient source for fermentation processes, supporting the growth of yeasts and bacteria. It can contribute to the flavour profile of certain processed foods, particularly in meat products, by providing savoury notes. Its use is often linked to enhancing the umami taste and complexity of flavours.

Peptone is not typically considered a food additive under UK law and is not listed on the Register of Food Additive Authorisations. It is a source of protein and amino acids. Regulatory bodies like EFSA and JECFA have evaluated many protein hydrolysates, but specific evaluations for 'peptone' as a food ingredient are not widely documented. As a protein source, it is generally considered safe when consumed as part of a balanced diet.