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MES research in bacteria. A simplified screening test is described for estimating the bacterial population of Grade A ...

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Abstract

A simplified screening test is described for estimating the bacterial population of Grade A milk. The method employs an anchor-shaped dipper for measuring and sampling milk from the weigh-vat. The sample is transferred directly to prepared dilution bottles. A 0.01 ml milk transfer loop is used to inoculate 3 ml of agar in a 1-ounce screw-cap bottle. The bottle is laid on its side, incubated 48 hours, and the colonies counted. The number of colonies multiplied by 5,000 yields the bacterial estimates. Results compare favorably with the Standard Plant Count.

Keywords

BottleAgarDilutionPopulationAgar plateRaw milk

Identifiers

DOI
10.4315/0022-2747-16.3.133
Journal
Journal of Milk and Food Technology
Year
1953