2. Compute the number of bacteria per ml of raw milk and the number of bacteria after pasteurization. The milk samples w

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2 Compute The Number Of Bacteria Per Ml Of Raw Milk And The Number Of Bacteria After Pasteurization The Milk Samples W 1 (56.14 KiB) Viewed 27 times

2. Compute the number of bacteria per ml of raw milk and the number of bacteria after pasteurization. The milk samples were undiluted and a calibrated wire loop was used in transferring the sample into the slide. Refer to the data provided below: Data for raw milk Counts 1 per field Data for pasteurized milk Counts per field 2 3 66 33 42 Where : * 1 0 Formula: Bacteria/ml : = 2 3 3 2 Microscopic Fields 5 6 88 89 4 84 4 4 7 80 Microscopic Fields 6 5 8 0 no. of fields in 1 sq.cm = 7 1 8 9 40 47 8 9 5 0 average no. of organisms perfield xno. of microscopic fields per sq.cm x DF volume used 1 area of 1 microscopic field in sq.cm* e.g.: under the oil immersion objective (OIO) = 1.77 x 104 cm² 10 36 10 6