Afs2312:Food Processing And Preservation Question Paper
Afs2312:Food Processing And Preservation
Course:Bachelor Of Science In Food And Technology
Institution: Meru University Of Science And Technology question papers
Exam Year:2014
QUESTION ONE – (30 MARKS)
(a) Explain the following terms: (3 Marks) (i) Irradiation (ii) Food poisoning (iii) Food processing and preservation (b) List the three types of radiations that may be used for food preservation. Explain their differences and use in the food industry. (4 Marks) (c) What is food spoilage? List the major causes of food spoilage. (6 Marks) (d) Briefly describe the principles of food preservation. (5 Marks) (e) List the three common types of heat treatments. (3 Marks) (f) Distinguish between the following: (i) Pasteurization and sterilization (2 Marks) (ii) Refrigeration and freezing (2 Marks) (iii) Dehydration and concentration (2 Marks) (g) Outline the importance of food processing and preservation. (3 Marks)
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QUESTION TWO – (20 MARKS)
(a) Discuss the three forms of food decay. (10 Marks) (b) Explain the factors that influence the rate of dehydration in foods. (10 Marks)
QUESTION THREE – (20 MARKS)
(a) Discuss the chemical changes that take place during dehydration of foods. (10 Marks) (b) Explain the factors that may influence deterioration of foods in cool storage. (10 Marks)
QUESTION FOUR – (20 MARKS)
Discuss the preservation of foods by chemical methods. (20 Marks)
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