Question

Lactococcus lactis ssp. lactis produces which of the following antibacterial substances during fermentation:

• A. Pediocins
• B. Bifidin
• C. Nisin
• D. Sakacins

Hint:

Nisin is a key bio-preservative in controlling spoilage organisms in dairy processing.

Answer 1

The Correct Option is C

Nisin is an antibacterial substance produced by *Lactococcus lactis ssp. lactis* during fermentation. It is effective against gram-positive bacteria and is widely used as a preservative in dairy products like cheese.