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  • Question
  • The biotin level in obtaining L-gluatmic acid by fermentation using Micrococcus glutamicus is critical because


  • Options
  • A. too low level prevents growths, hence L-glutamic acid production
  • B. too high level prevents L-glutamic acid production
  • C. both (a) and (b)
  • D. none of the above

  • Correct Answer
  • both (a) and (b) 


  • Industrially Useful Microbial Processes problems


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    • 1. The strain C. glutamicum can be used for the production of

    • Options
    • A. L-ornithine
    • B. L-phenylalanine
    • C. L-glutamine
    • D. all of these
    • Discuss
    • 2. The first penicillin isolated by Alexander Fleming, penicillin F is also called

    • Options
    • A. 2-Pentenyl Penicillin
    • B. n-heptyl penicillin
    • C. phenoxymethyl penicillin
    • D. benzyl penicillin
    • Discuss
    • 3. Bacitracin, an antibiotic similar to penicillin, is produced by

    • Options
    • A. Bacillus polymyxa
    • B. Streptomyces erythreus
    • C. Bacillus licheniformis
    • D. Aspergillus fumigatus
    • Discuss
    • 4. Riboflavin is a by-product of __________ fermentation carried out by Clostridium spp.

    • Options
    • A. citric acid
    • B. acetone butanol
    • C. streptomycin
    • D. ethanol
    • Discuss
    • 5. The 95% ethanol is equivalent to

    • Options
    • A. 190 proof
    • B. 110 proof
    • C. 170 proof
    • D. 120 proof
    • Discuss
    • 6. The rapid process of microbial oxidation developed to produce acetic acid from ethanol at Schutzenbach, Germany is also known as

    • Options
    • A. packed generator
    • B. trickle method
    • C. Orleans process
    • D. both (a) and (b)
    • Discuss
    • 7. The Candida species require fermentation equipment lined with plastic because they are extremely sensitive to

    • Options
    • A. traces of cobalt
    • B. traces of nickel
    • C. traces of iron
    • D. none of these
    • Discuss
    • 8. Cycloserine may be isolated from the cultures of

    • Options
    • A. S. orchidaceus
    • B. S. lavendulae
    • C. S. garyphalus
    • D. All of these
    • Discuss
    • 9. The organism used to produce L-glutamic acid is

    • Options
    • A. Micrococcus glutamicus
    • B. Brevibacterium aminogenes
    • C. Arthrobacter globiformis
    • D. all of these
    • Discuss
    • 10. Which of the following organism produces enzyme taka diastase?

    • Options
    • A. A. oryzae
    • B. B. subtilis
    • C. A. niger
    • D. S. cerevisiae
    • Discuss


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