Question:
Muller Kauffmann Tetrathionate Novobiocin (MKTTn) broth is selective enrichment broth for____ .
Muller Kauffmann Tetrathionate Novobiocin (MKTTn) broth is selective enrichment broth for____ .
Show Hint
Whenever you see "Tetrathionate" or "Selenite" in a broth name in a food microbiology context, the answer is almost certainly Salmonella.
Updated On: Aug 7, 2026
- Campylobacter
- Salmonella
- Clostridium
- Bacillus
Show Solution
Verified By Collegedunia
The Correct Option is B
Solution and Explanation
Step 1: Understanding the Question:
The question asks for the target microorganism that is selectively grown and enriched using a specific laboratory medium called MKTTn broth.
Step 2: Detailed Explanation:
• Selective Enrichment: In food microbiology, if a pathogen is present in very low numbers or stressed, we use enrichment broths. These inhibit the background microflora while allowing the pathogen to multiply.
• Salmonella Detection: The standard ISO method for detecting Salmonella in food involves multiple stages. The enrichment stage often uses two different broths.
• MKTTn Broth: Muller-Kauffmann Tetrathionate Novobiocin broth is a highly selective medium designed specifically for the enrichment of {Salmonella species.
• How it works: Tetrathionate inhibits common intestinal bacteria (coliforms). The addition of Novobiocin (an antibiotic) specifically inhibits Gram-positive bacteria like Staphylococcus. Brilliant green and Bile salts are also often included to further increase selectivity against competitors.
Step 3: Final Answer:
MKTTn broth is a standard selective enrichment medium for Salmonella.
The question asks for the target microorganism that is selectively grown and enriched using a specific laboratory medium called MKTTn broth.
Step 2: Detailed Explanation:
• Selective Enrichment: In food microbiology, if a pathogen is present in very low numbers or stressed, we use enrichment broths. These inhibit the background microflora while allowing the pathogen to multiply.
• Salmonella Detection: The standard ISO method for detecting Salmonella in food involves multiple stages. The enrichment stage often uses two different broths.
• MKTTn Broth: Muller-Kauffmann Tetrathionate Novobiocin broth is a highly selective medium designed specifically for the enrichment of {Salmonella species.
• How it works: Tetrathionate inhibits common intestinal bacteria (coliforms). The addition of Novobiocin (an antibiotic) specifically inhibits Gram-positive bacteria like Staphylococcus. Brilliant green and Bile salts are also often included to further increase selectivity against competitors.
Step 3: Final Answer:
MKTTn broth is a standard selective enrichment medium for Salmonella.
Was this answer helpful?
0
0
Top ICAR AIEEA Food Science and Technology Questions
- What is the typical bond angle between hydrogen and oxygen atoms in a water molecule?
- Which conditions are favorable for the formation of acrylamide in foods?
Match List-I with List-II.
List-I (Chemical Compound) List-II (Source) (A) Inulin (I) Acacia tree (B) Sodium Alginate (II) Red algae (C) Gum arabica (III) Chicory root (D) Carrageenan (IV) Brown algae Choose the correct answer from the options given below.
- Arrange the following HACCP principles in the correct sequence as per their implementation:
(A). Conduct a hazard analysis
(B). Establish critical control points (CCPs)
(C). Establish corrective actions
(D). Establish monitoring procedures
(E). Establish verification procedures
(F). Establish record-keeping and documentation procedures
Choose the correct answer from the options given below: - Which of the following flavonoids is incorrectly grouped with its food source?
(A). Naringin-Citrus
(B). Quercetin-Onion
(C). Kaempferol-Broccoli
(D). Genistein-Berries
Choose the correct answer from the options given below:
View More Questions
Top ICAR AIEEA Food Processing Questions
- How does nitrite curing helps in meat preservation?
- Given below are two statements:
Statement (I): Xanthan is commonly produced by the use of Xanthomonas campestris on D-glucose
Statement (II): Xanthan is used in the food industry as a stabilizer, emulsifier, thickener, suspending agent, bodying, and foam enhancer
In light of the above statements, choose the most appropriate answer from the options given below. - Which of the following is a commonly used anti-foaming agents in the food industry?
- The use of ---------- as a flour modifier is proposed in order to permit the extrusion of the dough, in making uncooked pasta.
- Proprietary bread made from a mixture of wheat and rye which has been allowed to sprout, kiln dried and rolled, to this is added barely malt is----------.
View More Questions
Top ICAR AIEEA Questions
- Which of the following statements is false?
- Which of the following is an example of an inventory?
- According to Adam Smith, productivity gains could be brought about through .
- The supply curve for an artificially scarce good is .
- Which of the following would not be considered an opportunity cost of paid employment?
View More Questions