Trypticase soy agar

It is a general-purpose, non-selective media providing enough nutrients to allow for a wide variety of microorganisms to grow.

[1] TSA contains enzymatic digests of casein and soybean meal, which provide amino acids and other nitrogenous substances, making it a nutritious medium for a variety of organisms.

[1] One liter of the agar contains:[1] The medium may be supplemented with blood to facilitate the growth of more fastidious bacteria or antimicrobial agents to permit the selection of various microbial groups from pure microbiota.

TSA is frequently the base medium of other agar plate types.

For example, blood agar plates (BAP) are made by enriching TSA plates with defibrinated sheep blood, and chocolate agar is made through additional cooking of BAP.