How does homogenization relate to pasteurization in dairy processing?

• A. Homogenization is a thermal step that also pasteurizes.
• B. Homogenization sterilizes milk.
• C. Homogenization is a separate fat-emulsification step; it improves consistency and prevents cream separation but does not inactivate pathogens.
• D. Homogenization makes milk unsafe for consumption.

Answer: (C)

Homogenization and pasteurization address different needs in milk processing. Pasteurization uses heat to reduce or inactivate microorganisms, improving safety and extending shelf life. Homogenization is a separate, mechanical fat-emulsification step that breaks fat globules into much smaller particles and disperses them evenly, preventing cream from separating and giving milk its uniform texture. Because homogenization relies on pressure rather than heat, it does not inactivate pathogens. It’s typically done after pasteurization to stabilize the product, not to sanitize it. So, homogenization is a separate fat-emulsification process that improves consistency and prevents cream separation but does not inactivate pathogens.