Food Processing Techniques-2 MCQ

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• Statement 1: Hurdle technology is a ‘multi-target preservation’. Statement 2: The main target of food preservation is to help the harmful microorganisms to achieve homeostasis.
  ক

  True, False

  খ

  True, True

  গ

  False, False

  ঘ

  False, True
• Which of the following combination of processing and preservation techniques works best for smoked products?
  ক

  Salt and acidification

  খ

  Heat and solid content

  গ

  Heat, salt, acidification/minimal moisture content

  ঘ

  Heat, salt, dipping in brine/ minimal moisture content
• Statement 1: When several factors for food processing and preservation are applied to one food product, it is called Hurdle technology. Statement 2: Hurdle technology has arisen due to demand of costumers for healthier and more nutritious food items.
  ক

  True, False

  খ

  True, True

  গ

  False, False

  ঘ

  False, True
• Statement 1: Pulsed Electric field needs to followed by refrigeration storing to increase shelf life and prevent spoilage. Statement 2: Structural changes at cell membrane and inactivation of enzymes, is how high hydrostatic pressure works for the food industry.
  ক

  True, False

  খ

  True, True

  গ

  False, False

  ঘ

  False, True
• In Pulsed Electric field, since no heat is used, the aroma and flavour of food are retained.
  ক

  True

  খ

  False
• Statement 1: In Pulsed Electric field, food is kept between two electrodes and electricity is passed to deactivate microbes. Statement 2: Pulsed Electric field increases shelf life.
  ক

  True, False

  খ

  True, True

  গ

  False, False

  ঘ

  False, True
• Which of the following holds true for Pulsed Electric field?
  ক

  It has been successful in pasteurizing milk, yogurt, soup etc

  খ

  If there are no air bubbles present or the if food has low electrical conductivity, PEF is non-applicable

  গ

  It’s a continuous process. It cannot be applied for non-pump able solid food products

  ঘ

  All of the mentioned
• Which of the following methods refers to deactivation of microbes in food using electricity?
  ক

  Power Ultrasound

  খ

  Pulsed Electric field

  গ

  Hurdle technology

  ঘ

  All of the mentioned
• Which of the following is true about Sound Ultrasound?
  ক

  Generates mechanical energy to enhance chemical action on surfaces

  খ

  Scrubbing action loosens the dirt particles and cleans the food particle

  গ

  Generates mechanical energy to enhance chemical action on surfaces & Scrubbing action loosens the dirt particles and cleans the food particle

  ঘ

  None of the mentioned
• Certain antioxidants (e.g. – Nisin) can be used with the organic acids to reduce certain micro flora.
  ক

  True

  খ

  False