Monday 5 March 2012

Breads

Wheat Gluten


 This experiment will given a different task from other groups. The objectives of this experiment:- 
  • The development of wheat gluten in batters and dough.
  • Compare the differences in behavior between the protein in all purpose, cake, pastry, bread, rye, and triticale flours.
  • Conceptualize the changes the gluten complex undergoes during the baking period, from the stretchable complex to the denatured primary structure of the baked product.
  • Describe the factors influencing gluten development in a variety of baked products.
This are the basic formula for Gluten Ball :-
110g (1c)        Flour
60ml (1/4c)    Water

Method:-
  • Use a fork to stir the dough that forms as the water is added to the flour. Add only enough water to make a stiff dough.
  • Use less then the amount indicated if the dough can be worked without adding all 60ml. Add more than 60ml if necessary to make the dough. Record the exact amount of water used.
  • After the water added, knead the dough vigorously for 5 minutes, but without adding more flour. Place the ball in a storng muslin cloth.
  • Hold the wrapped ball under a slow stream of cold water and manipulated the ball to begin to wash the starch from the dough.
  • if the water looks cloudy and milky, there is still starch in the ball. Patiently continue the process until the water runs clear as it drains from the cloth.
  • When the water begins looks clear, open the cloth and scrape the cream-colored particles that may be in the sink or on the outside of the cloth.
  • This cream-colored material looks insignificant, but it is the gluten.
  • When the starch has been washed away completely, the gluten mass will be quite cohesive and worked into a ball.
  • Additional wahing can be done without the cloth to eliminated any pockets of white starch that may be visibles as the gluten is manipulated. It is imperative that all the starch be remove because starch will interfere with optimal expansion of the gluten ball during baking.
  • Before baking the gluten ball prepared in the class, class members should manipulated the various types to experience their elasticity and cohesiveness. Then the balls should be weighed.
  • After weighing, bake the balls on pieces of foil in ovens preheated to 232c (450f).
  • After baking 15 minutes, turn the temperature to 150c (300f) and continue baking another 30 minutes without opening the oven door.
  • Cool briefly before weighing and measuring the volume. Cut in half to reveal the interior structure.

This are the task that given by Chef Zaid.



  1. Bread flour- Prepare the basic formula using bread flour.

The ingredients
      
    First,add the bread flour

     
    Add water

      
    Use the fork to stir the dough

       

    Knead the dough vigorously

      

    Place the ball in a strong mislin cloth

      
    Hold the wrapped ball under a slow stream of cold water.
    Open the cloth and scrape the cream-colored scraps together.

    Before baking.

    After baking

    Large air bubbles.

    This are the gluten structure- Before and after baking gluten balls:-


    Treatment
    Weight
    Characteristics of raw ball
    Volume baked ball (ml)
    Interior
    Prior to baking (g)
    After baking (g)
    Texture of cell exterior

    Cell walls
    Strand strength
    1.Type of flour
    a. All purpose (control)
    20g
    6g
    fragile
    High rise
    Large air bubble
    Not so fragile
    Soft
    b. Cake
    9g
    4g
    Solid
    No rise
    Small air bubble
    Hard
    Hard
    c. Pastry
    9g
    1g
    Fragile
    Medium rise
    Medium air bubble
    Fragile
    Soft
    d. Bread
    21g
    6g
    Fragile
    High rise
    Large air bubble
    Not so fragile
    Soft
    e. Whole wheat
    80g
    54g
    Solid
    No rise
    Not identify
    Hard
    Hard
    THANK YOU :)
     

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