Question:
Choose the options of correct combinations of microorganism and microbial product:
Choose the options of correct combinations of microorganism and microbial product:
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Aspergillus niger is the "workhorse" for Citric acid—remember this for industrial fermentation questions.
Updated On: May 28, 2026
- A & C Only
- B & C Only
- A & B Only
- A & D Only
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The Correct Option is C
Solution and Explanation
Step 1: Concept
Industrial microbiology utilizes specific microorganisms as "cell factories" to produce chemicals, acids, and alcohols.
Step 2: Meaning
The efficiency and yield of the product depend on the metabolic pathway of the selected microbe.
Step 3: Analysis
Enterobacter (A) species are known for 2,3-butanediol (butanol) fermentation. Aspergillus niger (B) is the primary industrial source for Citric acid production. Zymomonas (C) is famous for ethanol production via the Entner-Doudoroff pathway, while steroid transformations are often done by Rhizopus or Arthrobacter. E. coli (D) does not naturally produce methane; methane is produced by Methanogens (Archaea).
Step 4: Conclusion
Combinations A and B represent accurate industrial microbial processes.
Final Answer: (C)
Industrial microbiology utilizes specific microorganisms as "cell factories" to produce chemicals, acids, and alcohols.
Step 2: Meaning
The efficiency and yield of the product depend on the metabolic pathway of the selected microbe.
Step 3: Analysis
Enterobacter (A) species are known for 2,3-butanediol (butanol) fermentation. Aspergillus niger (B) is the primary industrial source for Citric acid production. Zymomonas (C) is famous for ethanol production via the Entner-Doudoroff pathway, while steroid transformations are often done by Rhizopus or Arthrobacter. E. coli (D) does not naturally produce methane; methane is produced by Methanogens (Archaea).
Step 4: Conclusion
Combinations A and B represent accurate industrial microbial processes.
Final Answer: (C)
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