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  • Question
  • Which of the following Ascomycetes are used for riboflavin production?


  • Options
  • A. Eremnothecium ashbyii
  • B. Ashbya gossypii
  • C. Candida guilliermondia
  • D. Both (a) and (b)

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


  • Industrially Useful Microbial Processes problems


    Search Results


    • 1. Vinegar is a fermentation derived food product containing not less than

    • Options
    • A. 4% acetic acid
    • B. 15% acetic acid
    • C. 25% acetic acid
    • D. 6% acetic acid
    • Discuss
    • 2. The production of acetic acid from ethanol is an

    • Options
    • A. anaerobic process
    • B. aerobic process
    • C. a combination of both
    • D. none of the above
    • Discuss
    • 3. Chlorotetracycline a broad spectrum antibiotic is produced by

    • Options
    • A. Streptomyces aureofaciens
    • B. Streptomyces rimosus
    • C. Streptomyces venezuelae
    • D. Streptomyces erythreus
    • Discuss
    • 4. Fungal amylases using stationary culture with wheat bran utilizes

    • Options
    • A. A. oryzae
    • B. A. niger
    • C. A. flavus
    • D. S. cerevisiae
    • Discuss
    • 5. Which of the following micro organism utilizes lactose as a carbon source in production of lactic acid from whey media?

    • Options
    • A. Lactobacillus bulgaricus
    • B. Lactobacillus delbrueckii
    • C. Lactobacillus pentosus
    • D. Leuconostoc mesenteroides
    • Discuss
    • 6. The 95% ethanol is equivalent to

    • Options
    • A. 190 proof
    • B. 110 proof
    • C. 170 proof
    • D. 120 proof
    • Discuss
    • 7. Riboflavin is a by-product of __________ fermentation carried out by Clostridium spp.

    • Options
    • A. citric acid
    • B. acetone butanol
    • C. streptomycin
    • D. ethanol
    • Discuss
    • 8. Bacitracin, an antibiotic similar to penicillin, is produced by

    • Options
    • A. Bacillus polymyxa
    • B. Streptomyces erythreus
    • C. Bacillus licheniformis
    • D. Aspergillus fumigatus
    • Discuss
    • 9. 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
    • 10. 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


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