Protein

Protein

Denaturation and Coagulation
1. Denaturation
  1. Chemical bonds that holds the protein bundle together are broken
  2. The molecule unfolds and changes shape
  3. Chemical method
    1. Acids can alter the PH causing denaturation
    2. Lemon curds milk to make paneer
  4. Mechanical
    1. Air can be whipped in
    2. Whisking egg whites to make meringues
  5. Heat
    1. The heat breaks the bonds
    2. frying meat
2. Coagulation
  1. The hardening or setting of a protein
  2. The denatured proteins unfold and join up with other proteins
  3. They trap water and air
  4. Overcooking causes the coagulated protein to tighten up too much and squeeze out waater
  5. frying an egg
What is it
1. Amino Acids
  1. Protein is made up of a string of amino acids
  2. There are 20 essential amino acid and not all of them are made in the body
  3. When we digest protein our body breaks it back into amino acids can we can use it again
2. It's a macronutrient that is essential to all animals
  1. Macronutrient means it's very big and our body needs a lot of it
3. It is in big bundles
Food sources
1. Plant
  1. Protein complementation
    1. a mixture of protein with different amino acids to make all the amino acids
    2. Rice and bean salad
    3. Beans on toast
    4. Lentil soup
    5. Vegetarian tortilla wraps
    6. Nut butter on bread
    7. Rice dessert with Gelatin
  2. Protein Alternatives
    1. Quinoa
    2. Soy products
    3. They have a HBV
    4. Low fat content
    5. little flavour
    6. They are alternative to meat or fish
    7. Tofu
    8. Tempeh
    9. Mycoprotein eg. quorn
  3. A lot of the plant sources of Protein have a Low Biological Value
    1. It doesn't have all the essential Amino Acids
  4. seeds and nuts
  5. beans and lentils
  6. cereals
  7. Gelatin
2. Animal
  1. Beef
  2. Lamb
  3. Chicken
  4. Pork
  5. Proteins found in animals have High Biological Values
    1. They contain all the essential amino acids
  6. Fish
  7. Eggs
Why do we need it
1. Protein deficiency
  1. The body won't grow properly
    1. The body doesn't get the proper quantities of nutrients
  2. some loss of hair
    1. Hair is made from protiens
  3. easily develop infections
    1. protein makes antibodies
    2. Weakens immune system
  4. May not be able to digest food properly
    1. Various nutrients may not be able to be absorbed
    2. Protein makes enzymes
  5. too much protein can damage your liver and kidneys
2. Functions of Protein
  1. To make the body grow
  2. To repair the body
    1. Helps to replace dead cells
  3. To give the body energy
  4. Used to make hormones
    1. Helps you grow and reproduce
  5. To make enzymes
    1. Helps you break up and digest your food
  6. To create ant-bodies
    1. helps your immune system fight infections from virus and bacteria
By Sachi Sahi

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	Created by Sachi Sahi about 8 years ago