Tag: food spoilage, adulteration and preservation

Questions Related to food spoilage, adulteration and preservation

Sodium benzoate is used to preserve

evs eat when you need food poisoning and food preservation methods food spoilage, adulteration and preservation food spoilage and adulteration

  1. Meat

  2. Fish

  3. Dairy product

  4. Fruit cocktail

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Correct Option: D

Dehydration of food is also known as

evs eat when you need food poisoning and food preservation methods food spoilage, adulteration and preservation food spoilage and adulteration

  1. Dessication

  2. Drying

  3. Sterilization

  4. Both A and B

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Correct Option: D

UHT stands for____________.

evs eat when you need food poisoning and food preservation methods food spoilage, adulteration and preservation food spoilage and adulteration

  1. Ultra high temperature

  2. Unique high temperature

  3. Ultra hot temperature

  4. All of the above

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Correct Option: A

Pasteurisation is?

evs eat when you need food poisoning and food preservation methods food spoilage, adulteration and preservation food spoilage and adulteration

  1. Heating of liquid at $65^o$C

  2. Heating of liquid between $65^o$ - $80^o$C followed by rapid cooling

  3. Heating of solids at $65^o$C

  4. None of these

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Correct Option: B
Explanation:

Pasteurization is a process in which milk is heated at high temperatures (65 degree celsius approx) followed by rapid cooling to kill pathogenic bacteria.

Correct answer-B

Which of the following are commonly used as food preservatives?

evs eat when you need food poisoning and food preservation methods food spoilage, adulteration and preservation food spoilage and adulteration

  1. Boric acid and zinc phosphide

  2. Bleaching powder and chlorine compounds

  3. 2, 4-D and zinc phosphide

  4. Sodium benzoate and sodium metabisulphite

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Correct Option: D
Explanation:

Food preservatives are chemicals that are used to inhibit microbial growth in food. These chemicals are food additives and increase the shelf life of food. Sodium benzoate and sodium metabisulphite are the common food preservatives used in jams, jellies etc. Thus the correct answer is option D.

Which of the following is not paired correctly?

evs eat when you need food poisoning and food preservation methods food spoilage, adulteration and preservation food spoilage and adulteration

  1. Alexander Fleming - Penicillin

  2. Leeuwenhoek - Microscope

  3. Elic Metchnikoff - Phagocytes

  4. Louis Pasteur - Antiseptic

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Correct Option: D
Explanation:

Louis Pasteur is regarded as one of the greatest saviors of humanity and was responsible for the discovery of pasteurization. His pasteurization process concluded that all fermentable liquid could be prevented from a spoiling with a special heating treatment.

So, the correct option is 'Louis Pasteur - Antiseptic'.

Vinegar used as preservative for pickles, is _____ % aqueous solution of acetic acid.

evs eat when you need food poisoning and food preservation methods food spoilage, adulteration and preservation food spoilage and adulteration

  1. 1 to 2

  2. 5 to 8

  3. 25 to 30

  4. 100

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Correct Option: A

Heating milk at 65$^o$C followed by sudden cooling is known as

evs eat when you need food poisoning and food preservation methods food spoilage, adulteration and preservation food spoilage and adulteration

  1. Sterilization

  2. Preservation

  3. Pasteurization

  4. Fermentation

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Correct Option: C
Explanation:

Pasteurization is a heat treatment process where the milk is heated at 60-70$^0$C for 15 to 30 seconds and suddenly chilled and store. This method is used to kill the bacteria in liquid and foods and inhibits their further growth. It is named for the French scientist, Louis Pasteur, who gave this preservation technique in the 1860s.

Pasteurised milk is

evs eat when you need food poisoning and food preservation methods food spoilage, adulteration and preservation food spoilage and adulteration

  1. Sterile and will not turn sour

  2. Free from pathogenic bacteria

  3. Not free from bacteria

  4. Both A and B

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Correct Option: D
Explanation:

Pasteurization is the preservation technique of milk. It is used 

  1. To increase milk safety for the consumer by destroying disease-causing microorganisms (pathogens) that may be present in milk.
  2. To increase keeping the quality of milk products by destroying spoilage microorganisms and enzymes that contribute to the reduced quality and shelf life of milk.
Therefore, the correct answer is option D.

Pasteurization means_____________

evs eat when you need food poisoning and food preservation methods food spoilage, adulteration and preservation food spoilage and adulteration

  1. Vaccination of a baby against smallpox

  2. Sterilization in steam cooker at 100$^{\circ}$C

  3. Heating milk or other liquids to 60$^{\circ}$C to 70$^{\circ}$C for short duration

  4. A technique of curing people bitten by mad dogs

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Correct Option: C
Explanation:

Pasteurization is a heat treatment process where the milk is heated at 70$^0$C for 15 to 30 seconds and suddenly chilled and store. This method is used to kill the bacteria in liquid and foods and inhibits their further growth. It is named for the French scientist, Louis Pasteur, who gave this preservation technique in the 1860s. Thus, the correct answer is option C.