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Lesson 9: Food Processing

Lesson 9 Activities

Reflection Assignment 4: Unit Operations

Objectives

Here are the objectives for this assignment:

  • Identify unit operations used during processing of specific food products.
Relationships to Course Goals

This activity will help students describe and/or identify these examples:

  • Common hazards associated with foods and how human behavior affects food safety.
  • Techniques (unit operations) used in food processing/manufacture and how they can relate to food preservation.
  • Legal and economic constraints on foods, identify the role of different governmental agencies that regulate food production and sale (labeling).
Instructions
  1. Read all the instructions before beginning! Download and save this file before going on to step 2.
  2. Before watching the video, review the list of unit operations provided below and refer to your notes/class readings to refresh your memory regarding you’re not familiar with:
    • Cleaning
    • Separating
    • Size reduction
    • Fluid flow
    • Mixing
    • Heat-transfer
    • Concentration
    • Drying
    • Forming
    • Packaging
    • Preservation related processes (irradiation, canning, pasteurization, etc)
  3. From the links below, choose and watch ONE video (~5 min).
  4. After watching the entire video, identify 3 unit operations (see list above) performed during the process (watch the video as many times as necessary to identify the 3). Type your answers to the questions below.
    1. Food Processing Video selection (1 point)
    2. Posting date & length (in min:sec, 1 point)
    3. Identify 3 unit operations observed in the video and briefly describe what happens in each (2 points each).
      1. First unit op observed
      2. Second unit op observed
      3. Third unit op observed
    4. Reflect on the process you just saw. What surprised you AND what didn’t surprise you about how that food is made? (2 points)
  5. Finally, save the completed document and upload to the assignment submission area.

Lesson 9 Discussion Forum

Respond to the statements or questions in this discussion forum. Your initial post must be posted by Thursday of the lesson week. Respond to at least two classmate posts by the end of the lesson week. In general, posts should be 50–75 words. Please respond first to posts without replies in order to make sure everyone is included in the discussion.

  • In Lesson 2, we watched a video that proposed that cooking food was part of a huge shift in our brain development and contributed to the creation of our species. Richard Wrangham (2009) states, “cooked cuisine was central to the biological and social evolution of humanity.”
  • Do you agree with this statement? Use examples and what you learned from previous lessons (or outside sources) to defend your position.

Lesson 9 Quiz

Choose the best answer for each question. You will have 15 minutes to complete the quiz and two attempts. Your highest attempt will be recorded.


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