1. © 2005 Thomson Delmar Learning. All rights reserved.
Unit 33 Food Science
Nutritional needs of humans
USDA nutrition pyramid
Processing and preserving food
Food products from crops
By-products
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2. Nutritional Needs of Humans
Carbohydrates
Fats
Proteins
Vitamins
Minerals
Water
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3. © 2005 Thomson Delmar Learning. All rights reserved.
USDA Food Pyramid
Bread, cereal, rice, pasta group
Vegetable group
Fruit group
Milk, yogurt, cheese group
Meat, poultry, fish, dry beans,
eggs, nuts group
Fats,oils, sweets group
6-11 servings
3-5 servings
2-4 servings
2-3 servings
2-3 servings
use sparingly
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4. Processing and Preserving
Fermentation
Refrigeration
Canning
Dehydration
Freeze-drying
Irradiation
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5. Food Products from Crops
Cereal grains
Rice
Wheat
Corn
Barley
Oats
Oil crops
Soybeans
Cottonseed
Peanuts
Rape
Palm nuts
Coconuts
Olives
Corn
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6. Food Products from Animals
Milk and milk products—dairy cattle
Meat
Beef
Dairy steers
Sheep
Hogs
Poultry
Fish
Game
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7. © 2005 Thomson Delmar Learning. All rights reserved.
By-products
Hides—leather for shoes, sports equipment, gloves
Fats—oleomargarine; soap; candles; lubricants; fertilizer
Variety meats—heart; liver; brains; sweetbreads
Hair—paintbrushes; toothbrushes; air filters; mattresses
Horns and hooves—combs; buttons; decorative items
Blood—shoe polish; refining of sugar; stock feeds
Meat scraps and muscle tissue—fertilizer; feed
Bones—fertilizer; glue; stock feed
Intestines—strings for tennis rackets, musical instruments
Glands—pharmaceutical industry for medical drugs
Collagen—gelatin; glue
Contents of the stomach—fertilizer
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8. New Foods on the Horizon
Electronic monitor for bruised fruit
Cholesterol-free eggs
Flavor-saving fruits and vegetables
Decreased loss of nutrients in poultry
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