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Hndu 242:Food Microbiology Question Paper

Hndu 242:Food Microbiology

Course:Nutrition And Dietetics

Institution: Kenya Methodist University question papers

Exam Year:2011

SCHOOL OF MEDICINE AND HEALTH SCIENCES

DEPARTMENT OF NUTRITION AND DIETETICS

DURATION: 3 HRS

INSTRUCTIONS: 1. Answer ALL Questions in Section A and TWO in Section B 2. Write your University ID on ALL scripts 3. Use only blue, black ball point or ink

SECTION A

Question 1

Describe the following expressions as used in description of microbial death.

a) D value

b) Z value

c) P value

d) F value

e) 12 D concept (10marks)

Question 2

Describe the phases of the microbial growth cycle. (5marks)

Question 3

Describe the pathogenic strains of E. Coli that may present as food poisoning organisms. (5marks)

Question 4

Describe any TWO viruses that present as food borne pathogens. (5marks)

Question 5

Describe the microbial flora of human gastro intestinal tract. (5marks)

SECTION B

Question 6

a) Describe the mode of action of bacterial toxins. (10marks)

b) Discuss the intrinsic factors that affect microbial growth. (10marks)

Question 7

a) Describe the microbial food preservatives used in manufacturing industries. (10marks)

b) Describe Listeria monocytogens as a food borne pathogen. (10marks)

Question 8

Discuss the principles of Hazard analysis critical control points. (20marks)

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