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BPVI-013

DIPLOMA IN DAIRY TECHNOLOGY (DDT) Term-End Examination June, 2012 BPVI-013 : MILK PROCESSING AND PACKAGING Maximum Marks : 50

Time : 2 hours Note : Attempt any five questions. All questions carry equal marks.

2x5=10

1.

Define the following terms : (a) Bacto Fugation (b) Clarification (c) Clarifier sludge (d) Alcohol Test (e) Clot on Boiling Test (C.O.B)

2.

Explain the process of Batch Pasteurization and HTST pasteurization of milk. What are the objectives of carrying out milk pasteurization process ?

10

3.

What is single and two stage homogenisation ? What are the factors affecting homogenisation efficiency of milk ?

10

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4.

Describe UHT milk and Aseptic packeging. Why heating of milk above 130°C is desirable in production of UHT milk ? How will you assess 4+2+4=10 the efficiency of sterilization ?

5.

What different platform tests are conducted at reception dock ? Write the aim of each.

10

6.

Distinguish between (a) Filtration and Clarification of milk. (b) Toned and Double Toned milk (c) Recombined and Reconstituted milk (d) Caustic soda and Nitric acid (e) Transportation of milk in Milk cans and Road milk tankers

10

7.

What are the characteristics of a good detergent ? Name different alkaline cleaners, acid cleaners, wetting agents, sequestering agents and anti foaming agents used in a dairy plant.

10

8.

Write short notes on any two : 2x5=10 (a) Phosphatase test (b) Methylene Blue Reduction Test (MBRT) (c) C.I.P. System of cleaning (d) Cleaning of milk storage tanks

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