Slightly alkaline enrichment media for cultivating fastidious organisms. Nutrient Agar 1.5% is a basic media composed of a simple peptone and a beef extract. The gelatin peptone contributes organic nitrogen in the form of amino acids and long-chain fatty acids. The beef extract provides additional vitamins, carbohydrates, salts and other organic nitrogen compounds. If needed other enrichments may be added to the prepared media or during the preparation of the dehydrated powder. Blood may be prepared with Nutrient Agar 1.5%