Nutrient Broth is a basic media composed of a simple peptone and a beef extract. ... Beef Extract provides additional vitamins, carbohydrates, salts and other organic nitrogen compounds. If needed other enrichments may be added during the preparation of N8530 or to prepared media.
Nutrient agar consists of 2% agar and is a solid media. It is used to obtain colonies of microorganisms. Nutrient broth lacks agar, and it is a liquid medium. ... Therefore, the main difference between nutrient agar and nutrient broth is the texture and purpose of use.