M-BCG Yeast and Mould Broth, Modified is recommended for the detection of fungi in the routine analysis of beverages using membrane filter technique.Tryptone and peptone serves as rich nutrient source for growth of yeasts and moulds. Yeast extract and Thiamine together provides growth factors and B vitamin to the growing yeast and molds. Dextrose serves as the energy source. Diastase is a mixture of amylolytic enzymes. Bromocresol green acts the pH indicator which is green at acidic pH (4.0) while blue at pH 5.6. Phosphate salts buffers the medium well. The low pH inhibits bacterial growth.