ood processing slides - johns hopkins universitynot inherently unhealthy, but many are: high in...
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FOOD PROCESSING | SLIDES
1TEACHING THE FOOD SYSTEM | A PROJECT OF THE JOHNS HOPKINS CENTER FOR A LIVABLE FUTURE
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Degrees of food processing
Why are foods processed?
How are foods processed?
Concerns over food processing
OVERVIEW
2TEACHING THE FOOD SYSTEM | A PROJECT OF THE JOHNS HOPKINS CENTER FOR A LIVABLE FUTURE
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How do foods differ by their degree of processing?
Why and how are foods processed? Who benefits from food processing?
How do practices in the food processing industry affect food, people and the environment?
Essential questions
3TEACHING THE FOOD SYSTEM | A PROJECT OF THE JOHNS HOPKINS CENTER FOR A LIVABLE FUTURE
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Degrees of food processing
Why are foods processed?
How are foods processed?
Concerns over food processing
OVERVIEW
4TEACHING THE FOOD SYSTEM | A PROJECT OF THE JOHNS HOPKINS CENTER FOR A LIVABLE FUTURE
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Minimally processed foods
Processed food ingredients
Highly processed foods
Degrees of food processing
Not all processed foods are alike
5TEACHING THE FOOD SYSTEM | A PROJECT OF THE JOHNS HOPKINS CENTER FOR A LIVABLE FUTURE
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Washed
Peeled
Sliced
Juiced
Frozen
Dried
Fermented
Pasteurized
Degrees of food processing
Minimally processed foods
6TEACHING THE FOOD SYSTEM | A PROJECT OF THE JOHNS HOPKINS CENTER FOR A LIVABLE FUTURE
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Milled
Refined
Crushed
Exposed to chemicals
Degrees of food processing
Processed food ingredients
7TEACHING THE FOOD SYSTEM | A PROJECT OF THE JOHNS HOPKINS CENTER FOR A LIVABLE FUTURE
Andler, L. Pile of sugar. 2006.National Cancer Institute. Bottle of oil. 2009. Ranveig. Flour in bowl. 2005.All images available at Wikimedia Commons.
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Baked
Fried
Smoked
Toasted
Puffed
Shredded
Artificially flavored
Artificially colored
Sprayed with vitamins
Degrees of food processing
Highly processed foods
8TEACHING THE FOOD SYSTEM | A PROJECT OF THE JOHNS HOPKINS CENTER FOR A LIVABLE FUTURE
Ehardt S. Cheetos™ on plate. 2005.Available at Wikimedia Commons. All other images copyright.
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Degrees of food processing
Why are foods processed?
How are foods processed?
Concerns over food processing
OVERVIEW
9TEACHING THE FOOD SYSTEM | A PROJECT OF THE JOHNS HOPKINS CENTER FOR A LIVABLE FUTURE
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Salting meats
Fermenting dairy
Pickling vegetables
Canning
Pasteurizing milk
Why are foods processed?
Preservation
10TEACHING THE FOOD SYSTEM | A PROJECT OF THE JOHNS HOPKINS CENTER FOR A LIVABLE FUTURE
Hundhammer D. Parmigiano reggiano cheese. 2004.Available on Wikimedia Commons. All other images copyright.
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Heating
Refrigerating
Freezing
Fermenting
Drying
Salting
Why are foods processed?
Food safety
11TEACHING THE FOOD SYSTEM | A PROJECT OF THE JOHNS HOPKINS CENTER FOR A LIVABLE FUTURE
Images of E. Coli bacteria. Some strains can cause illness.
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Modifying:
Flavor
Texture
Aroma
Color
Form
Why are foods processed?
Variety
12TEACHING THE FOOD SYSTEM | A PROJECT OF THE JOHNS HOPKINS CENTER FOR A LIVABLE FUTURE
Fritz. Essene bread. 2010. Available on Wikimedia Commons.All other images copyright.
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Convenience food
Fast food
Why are foods processed?
Convenience
13TEACHING THE FOOD SYSTEM | A PROJECT OF THE JOHNS HOPKINS CENTER FOR A LIVABLE FUTURE
Superbass . Granola bar. 2007.Available at Wikimedia Commons.
All other images copyright.
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Commonly fortified foods:
Salt, with iodine
Milk, with vitamin D
Grain products, with folic acid, iron, B vitamins
Why are foods processed?
Nutrition: Fortification
14TEACHING THE FOOD SYSTEM | A PROJECT OF THE JOHNS HOPKINS CENTER FOR A LIVABLE FUTURE
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Commonly fortified foods:
Salt, with iodine
Milk, with vitamin D
Grain products, with folic acid, iron, B vitamins
Why are foods processed?
Nutrition: Fortification
15TEACHING THE FOOD SYSTEM | A PROJECT OF THE JOHNS HOPKINS CENTER FOR A LIVABLE FUTURE
Cocoa Krispies are copyright 2009 Kellogg North America Company.
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Canning
Freezing
Why are foods processed?
Nutrition: Preserving nutrients
16TEACHING THE FOOD SYSTEM | A PROJECT OF THE JOHNS HOPKINS CENTER FOR A LIVABLE FUTURE
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Degrees of food processing
Why are foods processed?
How are foods processed?
Concerns over food processing
OVERVIEW
17TEACHING THE FOOD SYSTEM | A PROJECT OF THE JOHNS HOPKINS CENTER FOR A LIVABLE FUTURE
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1. Harvesting
2. Unloading and washing
3. Sorting
4. Juice extracting
5. Pulp separating
6. Preheating (pasteurizing)
7. Evaporating
8. Essence recovery
9. Cooling
10.Packaging
How are foods processed?
Frozen orange juice concentrate
18TEACHING THE FOOD SYSTEM | A PROJECT OF THE JOHNS HOPKINS CENTER FOR A LIVABLE FUTURE
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1. Live chickens are shipped to a processing plant
Socially Responsible Agriculture Project . Chicken factory farm. 2009. www.sraproject.org.
All other images copyright.
How are foods processed?
Packaged chicken meat
19TEACHING THE FOOD SYSTEM | A PROJECT OF THE JOHNS HOPKINS CENTER FOR A LIVABLE FUTURE
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2. Shackling to assembly line
3. Stunning
4. Bleeding
5. Scalding
6. Feather removal
7. Feet, head and neck removal
8. Eviscerating
How are foods processed?
Packaged chicken meat (continued)
20TEACHING THE FOOD SYSTEM | A PROJECT OF THE JOHNS HOPKINS CENTER FOR A LIVABLE FUTURE
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9. Washing
10.Chilling
11.Grading
12.Cutting and deboning
13.Packaging
How are foods processed?
Packaged chicken meat (continued)
21TEACHING THE FOOD SYSTEM | A PROJECT OF THE JOHNS HOPKINS CENTER FOR A LIVABLE FUTURE
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1. Mechanical deboning
2. Mixing w/other ingredients
3. Forming
4. Dusting, battering, breading
5. Par frying
6. Freezing and packaging
7. Deep frying
How are foods processed?
Chicken nuggets
22TEACHING THE FOOD SYSTEM | A PROJECT OF THE JOHNS HOPKINS CENTER FOR A LIVABLE FUTURE
CecilBuffington.com. Mechanically deboned meat. Public domain. Other images copyright.
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Degrees of food processing
Why are foods processed?
How are foods processed?
Concerns over food processing
OVERVIEW
23TEACHING THE FOOD SYSTEM | A PROJECT OF THE JOHNS HOPKINS CENTER FOR A LIVABLE FUTURE
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Not inherently unhealthy, but many are:
High in added sugar
High in sodium
High in saturated fats, trans fats
Low in fiber
Made with refined grains
Conducive of unhealthy eating behaviors
Concerns over food processing
Highly processed foods
24TEACHING THE FOOD SYSTEM | A PROJECT OF THE JOHNS HOPKINS CENTER FOR A LIVABLE FUTURE
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Versions of highly processed foods with:
Less sugar
Less fat
Less salt
Less cholesterol
No trans fats
Fortifications
Concerns over food processing
Premium products
25TEACHING THE FOOD SYSTEM | A PROJECT OF THE JOHNS HOPKINS CENTER FOR A LIVABLE FUTURE
Lays are copyright Frito-Lay North America, Inc.
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2009 recall of over 2,000 products made w/peanut meal:
Peanut butter
Cookies
Crackers
Cereal
Candy
Ice cream
Pet food
Concerns over food processing
Food safety
26TEACHING THE FOOD SYSTEM | A PROJECT OF THE JOHNS HOPKINS CENTER FOR A LIVABLE FUTURE
USDA ARS. Food safety inspectors at a
poultry processing plant.
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Dangerous tasks
Hazardous conditions
Inadequate training
High injury rates
No compensation
Smuggled illegal immigrants
Threats against organizing
Concerns over food processing
Worker justice
27TEACHING THE FOOD SYSTEM | A PROJECT OF THE JOHNS HOPKINS CENTER FOR A LIVABLE FUTURE
Top: Valbuena J. USDA.Bottom: Cecilbuffington.com.
Public domain.
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Small number of corporations control processing industry
Affects farmers, consumers
Concerns over food processing
Industry concentration
28TEACHING THE FOOD SYSTEM | A PROJECT OF THE JOHNS HOPKINS CENTER FOR A LIVABLE FUTURE
Farmers
Consumers
Processors
Retailers
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Larger, fewer processing plants
Producers left without means to process
Concerns over food processing
Industry consolidation
29TEACHING THE FOOD SYSTEM | A PROJECT OF THE JOHNS HOPKINS CENTER FOR A LIVABLE FUTURE
Farmers
Consumers
Processors
Retailers
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May help loosen the bottleneck
Concerns over food processing
Local and regional food systems
30TEACHING THE FOOD SYSTEM | A PROJECT OF THE JOHNS HOPKINS CENTER FOR A LIVABLE FUTURE
Farmers
Consumers
Regional processors
Processors
Retailers
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Reduce, Reuse, Recycle!
Concerns over food processing
Packaging waste
31TEACHING THE FOOD SYSTEM | A PROJECT OF THE JOHNS HOPKINS CENTER FOR A LIVABLE FUTURE
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BPA linked to:
Cardiovascular disease
Diabetes
Male sexual dysfunction
Certain cancers
Changes to immune function
Concerns over food processing
Chemicals in packaging
32TEACHING THE FOOD SYSTEM | A PROJECT OF THE JOHNS HOPKINS CENTER FOR A LIVABLE FUTURE