BACGroTM Nonfat Dry Milk (NFDM) is intended for use in the preparation of microbiological culture media, and aids in the differentiation of organisms based on coagulation and digestion of casein protein. A 10% solution of NFDM is also used in the pre-enrichment of candy products (including chocolate) for the detection of Salmonella.
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Nonfat Dry Milk is spray-dried, powdered milk. When reconstituted as a 10% solution in deionized water, it is equivalent to Nonfat milk. NFDM contains no more than 5% moisture by weight following the spray-drying process, and no more than 1.5% milk fat. Additionally, NFDM contains 34-37% protein by weight, and 49.5-52% lactose. Because of its use in food manufacturing, it also must meet certain microbiological standards, including aerobic plate counts of <10,000 cfu/g, and test negative for Salmonella, E. coli, Listeria, and coagulase-positive Staphylococcus.
A 10% solution of NFDM is recommended by the FDA’s Bacteriological Analysis Manual (BAM)1 for the enrichment of candy products, including chocolate.
