M.Sc. DEGREE EXAMINATION, NOVEMBER 2017
Third Semester
Microbiology
Elective VI — MICROBIAL TECHNOLOGY
(Common for M.Sc. (Microbiology), M.Sc.(Botany))
(CBCS 2016 onwards)
Time 3 Hours Maximum 75 Marks
Part A (10 x 2 20)
Answer all questions.
All questions carry equal marks.
1. Define COD.
2. Mention any four sulphide reducing anaerobes.
3. Importance of sterilization.
4. Any two general groups of chemical preservatives.
5. Function of vitamin assay.
6. What is mycoplasma test?
7. Microbial food spoilage.
8. Define FSSAI.
9. Importance of microarray.
10. Need of immunoassay test.
Sub. Code
530506/
525701
RW-880
2
Ws15
Part B x 5 25)
Answer all questions by choosing either or
All questions carry equal marks.
11. What are the qualities of water that you would
analyse to make sure that its fit for human
consumption?
Or
What are the steps involved in membrane
filteration technique.
12. Why we should preserve pharmaceutical products?
Explain.
Or
Explain what are the methods used for specified
microorganisms.
13. List out the application of chromogenic methods of
Endotoxin test.
Or
Give an account of antimicrobial effectiveness test
in medical microbiology.
14. Explain the assessment of quality control in fruits.
Or
List out the advantages and disadvantages of light
pulse treatment method.
RW-880
3
Ws15
15. Write an account of LAL test and immuno assay.
Or
Illustrate the significance of barcode in food
industry.
Part C x 10 30)
Answer any three of the followings.
16. Discuss in detail the methods of mineral water quality
assessment as laid down by FSSAI.
17. Explain the types of chemical preservatives and their
biological role in maintenance of sterility.
18. Discuss the need of risk assessment of endotoxin activity.
Add a notes on various methods used.
19. Explain the principle, mode and action and application
light pulse technology in food industry.
20. What are the methods used in assessment of microbial
load in consumable food products Explain.