ElbisPeptones
For more than a century, peptones have played a central role in the development of high-performance media and feeds spanning the diagnostic, bioproduction, and vaccine industries focused on both human and animal health. Bacto Peptone, the first commercialized peptone, was developed by Difco Laboratories in 1914 and was considered the premium quality standard of supplements for microbial growth media. Building on this knowledge base, Difco continued to develop more peptones to add to the Bacto line of products. Bacto Proteose Peptone, Bacto Proteose Peptone No. 2, and Bacto Proteose Peptone No. 3 were created based upon data indicating that no single peptone was the most suitable nitrogen source for growing fastidious bacteria and supplementing culture media. Peptone development expanded throughout the 20th century to meet the evolving needs within the microbiology, molecular biology, biotechnology, and genetics fields.