Tryptic soy broth (TSB)

Definition

Tryptic Soy Broth (TSB) is a nutrient-rich liquid medium used for the cultivation of a wide variety of bacteria. It supports the growth of both aerobic and facultatively anaerobic microorganisms.

5 Must Know Facts For Your Next Test

1. TSB contains tryptone, soytone, sodium chloride, and dextrose which provide essential nutrients for bacterial growth.
2. It is commonly used in laboratories for bacterial cultures and diagnostic testing.
3. TSB can support the growth of fastidious organisms when supplemented with additional nutrients.
4. The pH of TSB is typically maintained around 7.3 to support optimal bacterial growth conditions.
5. TSB is often used as a base medium for further biochemical testing or antibiotic susceptibility assays.

Review Questions

Related terms

Agar: A gelatinous substance derived from seaweed, used as a solidifying agent in culture media.

Nutrient Agar:

A general-purpose solid medium supporting the growth of a variety of non-fastidious organisms.

Selective Medium: A type of culture medium designed to suppress unwanted microbes and encourage desired ones.