Microbiology of Foods – Section 1

11. Yeast and mould count determination requires-

A. nutrient agar
B. acidified potato glucose agar
C. MacConkey agar
D. violet Red Bile agar

Correct Answer: B. acidified potato glucose agar

12. The time temperature combination for HTST paterurization of 71.1°C for 15 sec is selected on the basis of

A. Coxiella Burnetii
B. E. coli
C. B. subtilis
D. C. botulinum

Correct Answer: A. Coxiella Burnetii

13. Aerobic Colony Count (ACC), is also known as

A. Total viable count (TVC)
B. Aerobic plate count (APC)
C. Standard plate count (SPC)
D. All of these

Correct Answer: D. All of these

14. Which of the following is true about ISO 2002 method for Salmonella detection?

A. Selenite cystine (SC) broth is replaced by Muller Kauffmann tetrathionate novobiocin broth (MKTTn)
B. Rappaport Vassiliadis (RV) broth has been replaced by Rappaport Vassiliadis Soya (RVS) broth
C. XLD is the first isolation medium rather than BGA
D. All of these

Correct Answer: D. All of these

15. Suspected colonies of Staphylococcus aureus when grown on Baird-Parker medium shall show

A. coagulase activity
B. protease activity
C. catalase activity
D. none of these

Correct Answer: A. coagulase activity

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