FOOD QUALITY AND SAFETY
FOOD SAFETY MANAGEMENT SYSTEMS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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1 cfu
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1.1 cfu/ml
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50cfu/ml
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500cfu/ml
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Detailed explanation-1: -Heterotrophic plate count levels in potable water should be <500 CFU/mL. These levels may increase on occasion, but counts consistently >500 CFU/mL would indicate a general decrease in water quality.
Detailed explanation-2: -HPC levels can be minimized in a distribution system by supplying water containing low levels of assimilable organic carbon and a disinfectant residual, and exercising best practices to ensure proper distribution system maintenance.
Detailed explanation-3: -The HPC test (or Standard Plate Count), applied in many variants, is widely used to measure the heterotrophic microorganism population in drinking-water and other media. Heterotrophs are organisms, including bacteria, yeasts and moulds, that require an external source of organic carbon for growth.