Nutrient agar

Medium for growing microorganisms

Nutrient agar is a general-purpose solid medium supporting growth of a wide range of non-fastidious organisms. It typically contains (mass/volume):0.5% peptone - this provides organic nitrogen 0.3% beef extract/yeast extract - the water-soluble content of these contribute vitamins, carbohydrates, nitrogen, and salts 1.5% agar - this gives the mixture solidity 0.5% sodium chloride - this gives the mixture proportions similar to those found in the cytoplasm of most organisms distilled water - water serves as a transport medium for the agar's various substances pH adjusted to neutral (6.8) at 25 °C (77 °F).

This keyword could refer to multiple things. Here are some suggestions: