Fundamentholfundamenthol
NEET2025Biology
Q.

Which of the following microbes is NOT involved in the preparation of household products?

A. Aspergillus niger

B. Lactobacillus

C. Trichoderma polysporum

D. Saccharomyces cerevisiae

E. Propionibacterium sharmanii

Choose the correct answer from the options given below:

  1. A

    C and E only

  2. B

    A and B only

  3. C

    A and C only

  4. D

    C and D only

Solution

Industrial / non-household microbes:

  • Aspergillus niger — industrial production of citric acid.
  • Trichoderma polysporum — industrial production of the immunosuppressant cyclosporin A; also a biocontrol agent.

Household-product microbes:

  • Lactobacillus — curd.
  • Saccharomyces cerevisiae — toddy / bread / brewing.
  • Propionibacterium sharmanii — Swiss cheese.

A and C are not used in household products.

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