Yeast Nitrogen Base without Amino acids

Yeast Nitrogen Base is nutrient-rich medium with sources of nitrogen, vitamins, trace elements and salts. It acts as the basic nutrient medium for most fermentation reactions involving yeast cultures. Yeast Nitrogen Base with and without added amino acids for the cultivation of yeast and for classification based on amino acid and carbon requirements, respectively. Yeast Nitrogen Base without amino acids (YNB w/o AA) is used for selecting yeasts based on amino acid and carbohydrate requirements. In Yeast Nitrogen Base without amino acids, Ammonium sulphate is included as a readily available nitrogen source for nitrogen assimilation. The medium includes all other vitamins, mineral salts and trace elements required for a vigorous growth of yeast cells.