Question
The Pasteurization does not destroy.
This question was previously asked in
CUET PG 2026 Agri-Business Management Question Paper (25-Mar-2026) (Shift 2)
The correct answer is
Bacterial toxins
Pasteurization Effectiveness Explained
Pasteurization is a heat treatment process designed to reduce the number of viable microorganisms in liquids like milk and juices. Its primary goal is to kill harmful pathogens and reduce spoilage organisms, thereby extending shelf life and improving safety.
What Pasteurization Destroys
The process effectively targets and destroys many common microorganisms, including:
- Most bacteria (e.g., Listeria, Salmonella, E. coli)
- Yeast
- Moulds
What Pasteurization Does Not Destroy
While effective against living cells, pasteurization does not reliably destroy all microbial byproducts. Specifically:
- Bacterial toxins: Some bacteria produce toxins (poisonous substances) that are often heat-stable. Pasteurization may kill the bacteria, but these pre-formed toxins can remain, potentially posing a health risk.
Therefore, pasteurization significantly improves microbial safety but does not guarantee the complete elimination of all potential contaminants or their harmful effects, such as heat-resistant toxins.
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