Peptones
[CAS# 73049-73-7]

Identification

• Classification: Biochemical >> Microbiological reagent
• Name: Peptones
• Synonyms: Peptone; Aminobak; Bacterion KN; Peptobak; Proteins, peptones; Proteins, specific or class, peptones; Tryptones
• Molecular Formula: C₁₃H₂₄O₄
• Molecular Weight: 244.33
• CAS Registry Number: 73049-73-7
• EC Number: 615-895-9
• SMILES: CCC(C)(CC)CCC(C(=O)OC)C(=O)OC

Properties

• Solubility: 50 mg/mL (water)
• Density: 0.915-1.035 g/L

Discovery and Applications

Peptones are water-soluble proteins derived from partial hydrolysis of animal or plant tissues. They were discovered in the 19th century and their origins can be traced back to early digestion experiments by German chemist and physiologist Justus von Liebig. He found that pepsin and other digestive enzymes could break down complex proteins into simpler compounds. This discovery led to the identification of peptones, a mixture of peptides and amino acids, produced by enzymatic or acidic hydrolysis of proteins. They dissolve in water and are therefore readily available for a variety of biochemical applications. They are characterized by being rich in nitrogen and containing a variety of peptides and free amino acids, which are essential for the growth of microorganisms.

Peptones play a key role in microbiological culture media and are the main nitrogen source. They provide essential nutrients to bacteria, fungi and other microorganisms in culture media, promoting their growth for research and industrial applications. This makes them indispensable in the pharmaceutical, food and fermentation industries, where the cultivation and analysis of microorganisms is essential.

In addition to microbiology, peptones also play a role in the production of vaccines and antibiotics. They are growth media for bacteria and cell lines in these processes. Additionally, in biotechnology, peptones are used in large-scale fermentations to produce enzymes, bioactive peptides, and other valuable biomolecules.

The use of peptones extends to biopharmaceuticals, where they aid in the development of cell culture technology. Their ability to support cell growth and productivity makes them valuable in developing therapeutics and in regenerative medicine research.

References

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