Question

What are THREE indications of a high coliform counts in a food product?...


What are THREE indications of a high coliform counts in a food product?

Answer

  • The coliform count is an indicator of hygiene and a high level of coliform generally depicts unsanitary conditions or poor hygienic practices during or after the food preparation. 
  • The coliforms are the bacteria that are found in the digestive tract of animals including human beings. The coliforms can be isolated from the feces of animals. 
  • Additionally, they are also present in plants and soil material. 
  • The presence of coliform does not necessarily depict that the food is contaminated but it is just an indicator and further examinations could be required. 
  • High colony-forming unit (CFU) value within 48 hours of the streaking of food sample in MacConkey agar media will indicate high coliform count in the food products.
  • A pungent smell and bitter taste due to the exotoxins released by the bacteria will depict high coliform count in food.
  • The raw food material will have deteriorated color and these hard vegetables may become spongy with some liquid coming out will also depict high coliform count.
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