Peptone
Peptone
Peptone (pronunciation: /ˈpɛptoʊn/) is a water-soluble product formed by the partial hydrolysis of a protein by the action of an enzyme. It is used in culture media for growing bacteria and fungi.
Etymology
The term "peptone" is derived from the Greek word "pepton", which means "digested". It was first used in the late 19th century.
Description
Peptone is a complex mixture of polypeptides, amino acids, and other substances, including sugars and salts. It is produced by the enzymatic digestion of animal or vegetable proteins. The exact composition of peptone can vary depending on the source of protein and the specific enzymes used for digestion.
Uses
Peptone is widely used in microbiology to provide a source of nutrients for the growth of microorganisms in culture media. It is also used in the production of antibiotics, vaccines, and other biotechnology products.
Related Terms
- Protein hydrolysate: A mixture of amino acids prepared by splitting a protein with acid, alkali, or enzyme. Such preparations provide a source of amino acids for nutritional purposes.
- Culture media: A medium designed to support the growth of microorganisms or cells.
- Enzymatic digestion: The process of breaking down proteins into smaller peptides and amino acids by the action of enzymes.
External links
- Medical encyclopedia article on Peptone
- Wikipedia's article - Peptone
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