Question

Coliform bacteria are common contaminants of meats. High coliform counts in food indicate the potential for finding whic...


Coliform bacteria are common contaminants of meats. High coliform counts in food indicate the potential for finding which intestinal pathogens?

Answer

Coliform bacteria are the gram negative, facultative anerobic, and non-spore-forming rod. They can ferment lactose to acid and gas vigorously at about 35 degree Celsius within 24-28 hours.

Some coliform bacteria are found in the colon of the warm-blooded animals and so-called fecal coliforms while other coliform bacteria are related to the plant material.

When the animals are slaughtered, their digestive tract may get opened and release the coliform bacteria which infect the meat and other surfaces. Faecal contamination in slaughterhouses is prevalent.

Coliform bacteria are considered as indicator organisms because high coliform counts in food indicate that circumstances are much suitable for the enteric pathogens to be present and signify the insufficient sanitary condition.

Therefore, High coliform counts in food indicate the potential for finding the intestinal pathogens such as salmonella, shigella, and E. coli which can cause typhoid fever, bacillary dysentery, cholera, and intestinal viral disease.

 

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