Tag: evs - i

Questions Related to evs - i

Articles kept in refrigerator for several days get spoilt due to

evs - i methods of preserving food food spoilage and food preservation food poisoning and food preservation methods food spoilage, adulteration and preservation

  1. Frequent electricity failures

  2. Non-killing of contaminant microorganism

  3. Slow conversion of starch to sugar

  4. Slow breakdown of vitamins and proteins

Show answer
Correct Option: B

Temperature in deep freezers for preserving food articles is

evs - i methods of preserving food food spoilage and food preservation food poisoning and food preservation methods food spoilage, adulteration and preservation

  1. 0$^\circ$C

    • 4$^\circ$C
    • 10$^\circ$C
    • 18$^\circ$C
Show answer
Correct Option: D
Explanation:

Food stored at or below −18 °C (0 °F) is safe to avoid bacterial growth. Most household freezers maintain temperatures from −23 to −18 °C.

Temperature for UHT of milk is

evs - i methods of preserving food food spoilage and food preservation food poisoning and food preservation methods food spoilage, adulteration and preservation

  1. 95$^0$C for 10 seconds

  2. 110$^0$C  for ten seconds

  3. 132$^0$C for one second

  4. 132$^0$C for ten seconds

Show answer
Correct Option: C

Raw vegetables to be preserved in deep freezers must be pretreated with

evs - i methods of preserving food food spoilage and food preservation food poisoning and food preservation methods food spoilage, adulteration and preservation

  1. Food preservatives

  2. Sprayed with disinfectants

  3. Dipped in hot water

  4. All of the above

Show answer
Correct Option: C

Cryopreservation is :

evs - i methods of preserving food food spoilage and food preservation food poisoning and food preservation methods food spoilage, adulteration and preservation

  1. Preservation of living beings in chemicals.

  2. Preservation at very low temperature.

  3. Preservation through exposure to irradiation.

  4. Preservation through use of gases

Show answer
Correct Option: B

Cryogenic storage of germ plasm is done at.

evs - i methods of preserving food food spoilage and food preservation food poisoning and food preservation methods food spoilage, adulteration and preservation

  1. $4$ degrees C

  2. $-10$ degrees C

  3. $-40$ degrees C

  4. $-196$ degrees C

Show answer
Correct Option: A

Bacterial blight of rice can be controlled by giving 'Hot Water' seed treatment at.

evs - i methods of preserving food food spoilage and food preservation food poisoning and food preservation methods food spoilage, adulteration and preservation

  1. $43$ degrees C for $35$ mm

  2. $53$ degrees C for $30$ mm

  3. $59$ degrees C for $25$ mm

  4. $62$ degrees C for $20$ mm

Show answer
Correct Option: A

It is unwise to thaw meats

evs - i methods of preserving food food spoilage and food preservation food poisoning and food preservation methods food spoilage, adulteration and preservation

  1. In a microwave oven

  2. In the refrigerator

  3. Under cool running water

  4. At room temperature

Show answer
Correct Option: D
Explanation:
Meat, poultry and their products are perishable food as they get easily spoiled. Thus, they must be kept at a safe temperature during thawing. They are safe indefinitely while frozen. Perishable foods should never be thawed on the counter or in hot water and must not be left at room temperature for more than two hours but at temperature 40 °F or below for safety of products.
Therefore, the correct answer is option D.

The main purpose of dehydration of food is ______________.

evs - i methods of preserving food food spoilage and food preservation food poisoning and food preservation methods food spoilage, adulteration and preservation

  1. To increase the microbial activity

  2. To decrease the microbial activity

  3. To reduce the moisture content

  4. Both B and C

Show answer
Correct Option: D
Explanation:
Dehydration is an ancient technique of level preservative which is performed by extracting moisture hence inhibiting the growth of microorganisms which may lead to several diseases.
Thus decreasing microbial activity and reducing the moisture content.

Drying of food mainly inhibits the growth of _____________.

evs - i methods of preserving food food spoilage and food preservation food poisoning and food preservation methods food spoilage, adulteration and preservation

  1. Bacteria

  2. Yeast

  3. Mould

  4. All of the above

Show answer
Correct Option: D