10 Questions
What is the quality of milk if the reduction occurs within 30 minutes in the dye reduction test?
Very poor milk quality (class 4 milk)
What is the purpose of serial dilution in microbiology?
To decrease the bacterial concentration to a required concentration for a specific test method
What is the minimum quality requirement for untreated milk sold directly to consumers?
Pass a 30°C colony count test and a coliform test
What is CFU an abbreviation for?
Colony Forming Unit
What is the purpose of the dye reduction test?
To determine the quality of milk
Which test must cow's milk satisfy to be exported to other countries?
A Staphylococcus aureus test and a Salmonella test
What type of milk requires a Staphylococcus aureus test and a 30°C colony count test?
Untreated milk for making dairy products
What is the function of Maximum Recovery Diluents (MRD)?
To provide optimal conditions for bacterial recovery
What is the purpose of plating diluted samples?
To count bacteria on an agar plate
What type of test is used to determine the quality of milk?
Dye reduction test
Explore standard methods used in a microbiological testing laboratory for food and beverages. Learn about ISO TC 146 SC 4 standards for water quality, ISO TC 34 SC 9 guidelines, and FDA best practices in microbiological testing.
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