Question

Which bacteriocin having GRAS status for use in specific foods ?

• A. Nisin
• B. Trypsin
• C. Pepsin
• D. Naturage

Hint:

Nisin is the most commonly approved bacteriocin in food industry.

Answer 1

The Correct Option is A

Concept: Bacteriocins are antimicrobial peptides produced by bacteria and used in food preservation.

Step 1: Understanding GRAS.
GRAS = Generally Recognized As Safe.

Step 2: Nisin.

• Produced by Lactococcus lactis
• Effective against Gram-positive bacteria
• Widely approved as food preservative

Step 3: Other options.

• Trypsin, Pepsin → Enzymes, not bacteriocins
• Naturage → Not standard bacteriocin

Step 4: Conclusion.
Thus, Nisin is correct.