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Breakdown!! . http://player.discoveryeducation.com/index.cfm?guidAssetId=601740B4-BD0A-414D-886C-E85DF334731A&blnFromSearch=1&productcode=US. Rotting, getting moldy, going sour, and worms or insects infesting the food. Degradation:.

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breakdown

Breakdown!!

http://player.discoveryeducation.com/index.cfm?guidAssetId=601740B4-BD0A-414D-886C-E85DF334731A&blnFromSearch=1&productcode=US

Rotting, getting moldy, going sour, and worms or insects infesting the food

degradation
Degradation:

Larger or more complex materials are broken down into smaller or less complex materials

decomposition
Decomposition:

The breaking down of organic materials by microorganisms.

food preservation treating foods to delay deterioration
Food Preservation: treating foods to delay deterioration

Changing raw products into more stable forms that can be stored for longer periods of time.

Allows any food to be available any time of the year in any area of the world.

3 ways we preserve food
3 Ways we Preserve Food

Cold

Sugar (chemical additive)

Salt (chemical additive)

slide6
Salt

More effective in killing microorganisms

Makes water unavailable to them

Changes the pH of food

Significantly affects the taste

Decreases nutritional value (vitamins)

sugar
Sugar

Effective in killing microorganisms

Significantly affects the taste

Increases sugar consumption directly linked to obesity

food preservation activity
Food Preservation Activity

Making Pickles and Strawberry Jam

next class period
Next Class Period:

Bring a salty and a sugary snack.

This is worth 10 points!

sodium content activity
Sodium Content Activity
  • Using nutritional information
    • Find the sodium content
    • Convert the mg to ounces
          • Divide mg by 1000 to get grams, then multiply by .035 to get ounces.
    • Pour the equivalent amount of salt into a container.
sugar content activity
Sugar Content Activity
  • Using nutritional information
    • Find the sugar content
    • Convert the mg to ounces
          • Multiply by .035 to get ounces.
    • Pour the equivalent amount of sugar into a container.
slide12
Cold

Does not have a direct effect on the taste of food, convenience

Merely slows down microorganisms growth but does not actually kill them

activity
Activity
  • List the foods you like to eat all year.
  • Eliminate foods that require refrigeration.
  • Eliminate foods preserved using salt, sugar or chemical preservatives.
  • Eliminate foods that you could not produce at your home.
scope of food industry
Scope of Food Industry

Largest industry in U.S.

Employs 14,000,000 people.

Americans spend $100 billion annually for food; 1/5 of all spending.

world trends affecting food science
World Trends AffectingFood Science

Increase in world’s population is faster than increase in food supplies.

Scientists must obtain high productivity from small amounts of land.

Large food demand, small food supply

the supermarket
The Supermarket

A business that allows for greater varieties of products and product forms, prepared foods, automatic vending, and/ or fast-order foods.

Offers greater variety with lower prices.

critical thinking assignment
Critical Thinking Assignment:

Would eliminating food spoilage guarantee that no one would starve? If not how could you begin to solve the problem?

Part 1: Clarity

What do you mean by that?

Can you give me an example of what you mean?

Part 2: Basis

On what information do you base your claim?

Provide citations

Part 3: Adequacy

Has the question been thoroughly answered?

Did you give credence to opposing viewpoints?

Part 4: Implications

How would society be affected by your proposal?

would eliminating food spoilage guarantee that no one would starve
Would eliminating food spoilage guarantee that no one would starve?

No because there is still no way to guarantee distribution on the food. We already produce enough food to feed the world but starvation is still a big issue. Most food spoilage occurs in countries that have an abundance of food.