logo

CuriousTab

CuriousTab

Discussion


Home Microbiology Food Illness Comments

  • Question
  • Group I C. botulinum strains generally includes in


  • Options
  • A. all types of strains (proteolytic)A, B and F
  • B. all types of strains (non-proteolytic) E and F
  • C. all types of strains (proteolytic)C, D and F
  • D. none of the above

  • Correct Answer
  • all types of strains (proteolytic)A, B and F 


  • Food Illness problems


    Search Results


    • 1. High acid foods with a pH < 3.7 undergo spoilage by

    • Options
    • A. Saccharolytic anaerobe
    • B. B. coagulans
    • C. both (a) and (b)
    • D. do not undergo spoilage by microorganisms
    • Discuss
    • 2. The putrifactive anaerobes grow best in the

    • Options
    • A. low acid canned foods
    • B. medium acid canned foods
    • C. high acid canned foods
    • D. any of these
    • Discuss
    • 3. Flat sour spoilage of acid foods is caused by

    • Options
    • A. B. coagulans
    • B. B. pepo
    • C. both (a) and (b)
    • D. B. stearothermophillus
    • Discuss
    • 4. Medium acid foods with a pH between 5.3 and 4.5 are likely to undergo

    • Options
    • A. flat sour spoilage
    • B. putrefaction
    • C. both (a) and (b)
    • D. TA spoilage
    • Discuss
    • 5. The ability of B. coagulans to grow in tomato juice depends upon the

    • Options
    • A. number of spores present
    • B. the availability of oxygen
    • C. the pH of the juice
    • D. all of these
    • Discuss
    • 6. The staphylococcal intoxication refers to presence of

    • Options
    • A. an enterotoxin
    • B. neurotoxin
    • C. mycotoxin
    • D. All of these
    • Discuss
    • 7. The milk streptococci produce acetoin that gets spontaneously oxidized yielding a flavorings agent (responsible for aroma of butter) that is

    • Options
    • A. acetone
    • B. acetyl coA
    • C. butyric acid
    • D. diacetyl
    • Discuss
    • 8. Which of the following toxin causing botulism is less toxic to human beings?

    • Options
    • A. Type A
    • B. Type B
    • C. Type C
    • D. None of these
    • Discuss
    • 9. Staphylococcal intoxication is caused by the toxin m the food from

    • Options
    • A. Staphylococcus aureus
    • B. S. cerevisiae
    • C. S. thermophillus
    • D. none of these
    • Discuss
    • 10. The Bacillus cereus causes gasteroenteritis by the production of an exoenterotoxin which is released in food as a result of

    • Options
    • A. cell growth
    • B. cell autolysis
    • C. cell permeation
    • D. cell damage
    • Discuss


    Comments

    There are no comments.

Enter a new Comment