Evolution of Technology (TEC 154 2014S) : EBoards

TEC 154 2014S, Class 11: Food (2)




Main Points from LY

1.) Nanotechnology is a broad interdisciplinary area of research:

2.) Food and radiation:

3.) The main foods that would suffer greatly without technology:

4.) Foods in the US that are approved to be radiated:

5.) Applications of Nanotechnology:

Main Points from JV

  1. Cultural factors effect how food policy and food production is handled.

  2. EX: In the US, one can decrease the size of a substances that is approved and still use it without a label. In the EU labeling of techfoods is required.

    • EU's longer history, union of multiple countries, stronger acceptance of science, fewer multi-national chain restaurants
    • US: shorter history, singular nation, business driven, large scale chain restaurant
  3. Nano particles are artificial particles that have at least one dimension less than 100 nm. They are involved in many aspects of food consumption.

    • Agriculture: pesticides
    • Processing: new flavors, tastes, textures
    • Products: UV protection, contamination sensors
    • Nutrition: increase nutrient delivery
  4. A good way to display/ map consumer concern is to use the risk-vs-control axis chart.

  5. Is regulation appropriate for dietary issues? Should companies make an effort to be healthier?

    • Sugary drinks, high fat/high salt foods
    • Advertising issues
    • Trans fats vs Palm oil problems
  6. Even with new foods and technologies, moderation of consumption is probably the best.

Main Points from FC

1) Modified food products with nano technology improves their overall nutrient content. For instance, nutrients that are not found in most food could be placed using this method of technology.

2) Food exposed to radiation is beneficial when trying to preserve it. For instance, it delays food or vegetable sprouting and increases shelf life. Radiation also removes insects commonly found in foods such as corn, decontaminates foods, and preserves food that increase overall shelf life and profits for businesses.

3) Nano technologies and nano-particles are smaller (10^-9 meters) than bacteria and viruses that allow for the easy entry into the body.

40 There are three ways these small particles could get into the body. Inhalation, absorbed, and through the skin. The small the particle is, the deeper they get into the lungs.

5) Safety concerns are rising. the FDA labeled nano-technologies as emerging technologies that have to be cleared by a list. Although the technologies have to pass safety regulations, labels are not mandated in the US. Likewise, if a particle is allowed in the US, the particle could be reduced as much as possible that will get deeper into the lungs.

Fun Fact: Trans fats will be removed from the market and replaced by palm oil. As a result, orangutans' shelters are threatened because of the deforestation of their habitats.

Lyons' Lecture

Slide: Reprsentative Substances Used to Improve Nutrition


Food Irradiation [Slide Drawing]

Food Irradition [Slide Drawing]

Chronology of Food Irradiation

Effects [Slide "Levels of irradiation treatment"

(treatment in kilograys)


Current Approval

Question: Has There Been Research?

Nanotechnologies and Nanoparticles

[Slide: Applications of Nanoparticles]

Nanometers slide


Nanotechnologies and Nanoparticles in the Food Industry

Nanotitanium in Food


Consumer Safety Issues (Chaudhry)

FDA Guidance for Industry (April 2012)

Random Questions

Back to Kebs: Diet and Health: Protein leverage [Figures 8 and 9]

Question: Should we regulate diet and regulation?

Back to Trans Fats

Another Technofood



Copyright (c) 2014 Samuel A. Rebelsky.

Creative Commons License

This work is licensed under a Creative Commons Attribution 3.0 Unported License. To view a copy of this license, visit http://creativecommons.org/licenses/by/3.0/ or send a letter to Creative Commons, 543 Howard Street, 5th Floor, San Francisco, California, 94105, USA.