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FIFTH SEMESTER (CUCBCSS—UG) DEGREE EXAMINATION
NOVEMBER 2022

Microbiology
MBG 5B 07—FOOD AND DAIRY MICROBIOLOGY
(2018 Admissions)
: Three Hours Maximum : 80 Marks

Part A

Answer all questions.
Each question carries ¥2 mark.

Ropiness in beer is due to —————_.
Botulism is caused by
Name the common strain of yeast used as brewer’s yeast.
An alkylation agent commonly used for the preservation of food is
Green rot in egg is caused by
Expand GRAS.
List two non-ionizing radiations used for the preservation of the food.
Which fungus is used for the production of cheese worldwide ?
Bacterial soft root in vegetables is caused by
State True or False. Food is the major substrate for the growth of microorganisms.
Mention a qualitative test which used for the analysis of milk.
Expand COT.
(12 x %= 6 marks)
Part B

Answer all questions.

Each question carries 2 marks.
Cold sterilization.
Differentiate between radappertisation and radurisation.

Turn over

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