What Is Bacto Tryptone?

Description. Bacto Tryptone is an animal origin (AO) pancreatic digest of casein. It is included in standard methods manual applications and is listed in the Reagent section of the United States Pharmacopeia as meeting the specifications for a pancreatic digest of casein, a component in many of the media listed.

What is tryptone used for?

Tryptone is the assortment of peptides formed by the digestion of casein by the protease trypsin. Tryptone is commonly used in microbiology to produce lysogeny broth (LB) for the growth of E. coli and other microorganisms. It provides a source of amino acids for the growing bacteria.

Is tryptone same as peptone?

The peptones are derived from the digestion of meat or milk, but tryptone is derived from the digestion of milk only. For agrobacterium, these would derive a greater portion of their nutrition from animal cells (meat) than milk.