Question:
Lactocidin is a bacteriocin-like compound produced by which organism?
Lactocidin is a bacteriocin-like compound produced by which organism?
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To remember this:
- Nisin is produced by Lactococcus lactis.
- Lactocidin is produced by Lactobacillus acidophilus.
- Nisin is produced by Lactococcus lactis.
- Lactocidin is produced by Lactobacillus acidophilus.
Updated On: Jul 21, 2026
- Lactococcus lactis
- Lactobacillus casei
- Lactobacillus brevis
- Lactobacillus acidophilus
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The Correct Option is D
Solution and Explanation
Step 1: Understanding the Concept:
Bacteriocins are ribosomally synthesized antimicrobial proteinaceous compounds produced by bacteria, primarily lactic acid bacteria, that inhibit the growth of closely related bacterial strains.
Step 2: Detailed Explanation:
Lactobacillus acidophilus produces several antimicrobial substances that contribute to its therapeutic and preservative qualities in fermented milks.
One of the most well-characterized bacteriocin-like compounds produced by L. acidophilus is lactocidin (also referred to in literature alongside acidophilin and acidolin).
Lactocidin exhibits a broad spectrum of inhibitory activity against both Gram-positive and Gram-negative pathogenic and spoilage bacteria.
Therefore, Lactobacillus acidophilus is the producer of lactocidin.
Step 3: Final Answer:
Lactocidin is produced by Lactobacillus acidophilus.
Bacteriocins are ribosomally synthesized antimicrobial proteinaceous compounds produced by bacteria, primarily lactic acid bacteria, that inhibit the growth of closely related bacterial strains.
Step 2: Detailed Explanation:
Lactobacillus acidophilus produces several antimicrobial substances that contribute to its therapeutic and preservative qualities in fermented milks.
One of the most well-characterized bacteriocin-like compounds produced by L. acidophilus is lactocidin (also referred to in literature alongside acidophilin and acidolin).
Lactocidin exhibits a broad spectrum of inhibitory activity against both Gram-positive and Gram-negative pathogenic and spoilage bacteria.
Therefore, Lactobacillus acidophilus is the producer of lactocidin.
Step 3: Final Answer:
Lactocidin is produced by Lactobacillus acidophilus.
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