Standard Methods Agar (PCA) is recommended by APHA for the counting of bacteria of sanitary interest, which are indicators of contamination or microbial load in foods. Enzymatic Digest of Casein provides nitrogen, vitamins, minerals and amino acids essential for growth. Yeast extract is source of vitamins, particularly the B-group. Dextrose is the fermentable carbohydrate providing carbon and energy. Bacteriological agar is the solidifying agent. This medium is recommended by ISO 4833 for the colony count technique of microorganisms at 30ºC in the food chain.
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