what is the nutrient agar
Nutrient agar is a general-purpose, nutrient medium used for the cultivation of microbes. It is frequently used for isolation and purification of cultures. As we are using it here, it can also be used as a means for producing the bacterial lawns needed for antibiotic sensitivity tests.utrient agar consists of heat-stable digestive products of proteins (called peptones) and beef extract. Both of these provide amino acids, minerals, and other nutrients used by a wide variety of bacteria for growth.