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STARCHES CHARACTERISTICS

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... CHO Yields Energy 55-66% Total Kcal from CHO 4 kCal Per Gram Uses Thickeners Stabilizers Texturizers Water or Fat Binders Fat Substitutes Emulsification ... – PowerPoint PPT presentation

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Title: STARCHES CHARACTERISTICS


1
STARCHESCHARACTERISTICS
  • Dextrinization
  • Breakdown of Starch Molecules
  • Presence of Dry Heat
  • Smaller Sweeter-Tasting Dextrin Molecules
  • Thickening Power Diminished
  • Louisiana Gumbo Dark Flour

2
STARCHES

3
Starches
  • Waxy starches
  • High amylose starches (up to 70)

4
Native Starches- Problems
  • The lack of free flowing properties or water
    repellency of starch granules
  • insolubility or failure of granules to swell and
    develop viscosity in cold water
  • excess or uncontrolled viscosity upon cooking
  • cohesive or rubbery texture of cooked starches
  • the sensitivity of cooked starches to breakdown
    during extended cooking when expose to shear or
    low pH
  • the lack of clarity and the tendency of starch
    sols to become opaque.

5
STARCHESCHARACTERISTICS
  • Three Types
  • Cross-Linked Starch
  • Oxidized Starch
  • Instant or Pregelatinized Starch
  • Modified
  • Gelatinization
  • Heating Times
  • Freezing Stability
  • Cold H2O Solubility
  • Viscosity

6
STARCHESCHARACTERISTICS
  • Cross-Linked
  • Chemically Treated Link Starch Molecules w/
    Crossbridges
  • Cross-Linking Starch More Heat Resistant

7
STARCHES
  • Modified Starch
  • Starch Chemically or Physically Modified to
    Create Unique Functional Characteristics

8
SAUCES
  • Functions
  • Moistness
  • Flavor
  • Texture
  • Body esp. to Soups
  • Appearance - Rich Color Shine
  • Fish Meats Vegetables
  • More Appetizing Appealing w/ a sauce

9
SAUCES
  • Unthickened
  • Other Gravies
  • Hollandaise
  • Butter
  • Fruit
  • Barbecue
  • Tartar
  • Tomato Sauces
  • Types
  • Thickened
  • Cheese Sauce
  • White Sauce
  • Some Gravies
  • Table 17-3

10
SAUCES
11
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12
SAUCES
  • Small Sauces
  • Secondary Sauce
  • Mother Sauce Base
  • Examples
  • Cheese
  • Curry
  • Mushroom
  • Shrimp
  • Types
  • Mother Sauces
  • Grand Leading Major
  • Béchamel White
  • Espagnole Brown
  • Hollandaise
  • Tomato
  • Velouté

13
SAUCES

14
SAUCES
  • Ingredients
  • Smooth Texture Starch Gelatinization
  • Liquid
  • White or Brown Stock
  • Milk Clarified Butter Tomato Juice
  • Thickening Agent
  • Starch
  • Seasonings/Flavorings
  • Salt Black, White, or Cayenne Pepper Lemon
    Juice Herbs Wine

15
SAUCES
  • Glazes
  • Less Shelf Space
  • Last Months when Refrigerated
  • Convenient
  • Glaze
  • Flavoring from Soup Stock Concentrated by
    Evaporation to a Syrupy Consistency w/ Highly
    Concentrated Flavor

16
SAUCES
  • Variations in
  • Heating Times of Fat-Flour Combination
  • Cause Differences in Colors Flavors
  • Roux
  • Foundation of Thickened Sauces
  • Equal Parts Fat Flour
  • Three Types
  • White
  • Blond
  • Brown

17
SAUCES
  • Beurre Manié - burr mahn-YAY
  • Soft Paste Equal Parts Soft Butter Flour
    Blended Together

18
SAUCES
  • Slurry
  • Combine Starch Cool Liquid
  • Cool Liquid Inhibits Granule Expansion
  • Mix Into Simmering Liquid Base
  • Heat Causes Granule Expansion
  • Sauce Thickens
  • May Yield Starchy Taste
  • Less Stable Thickening

19
SAUCES
  • Roux Required for White Sauce
  • Butter Flour Milk Seasonings

20
SAUCES
  • Sauce from Roux
  • Melt Fat
  • Mix in Flour
  • Heat until Desired Doneness
  • White
  • Blonde
  • Brown
  • Combine Liquid Roux
  • Gradually Add Liquid while Whisking

21
SAUCES
  • Sauce from Roux cont.
  • Heating the Sauce
  • Adding Seasonings/Flavorings
  • Cheese Sauce Table 17-6
  • Preventing Lumps
  • Blend Fat Flour until Smooth
  • Add Small Amount of Sugar
  • Vigorously Mix 2 T Starch w/ Cold Water

22
SAUCES
  • No Starch or Thickening Agent
  • Gravy
  • Juices or Drippings Remaining in Pan After Meat
    or Poultry is Cooked
  • Drippings Served Thickened w/ Added Seasonings
    or Unthickened
  • Au Jus
  • Served w/ its Own Natural Juices Reference to
    Roasts

23
SAUCES
  • Unthickened
  • Gravy
  • Step 1 Degreasing
  • Step 2 Deglazing
  • Step 3 Reduction
  • Step 4 Straining
  • Step 5 Seasoning

24
SAUCES

25
SAUCES
  • Gravy Step 1
  • Degrease
  • Liquid from Fat
  • Methods
  • Refrigerate Mixture
  • Tip Pan Skim
  • Special Utensil
  • Fat Separator

26
SAUCES
  • Gravy
  • Step 2 Deglaze
  • Add Liquid to Pan Drippings
  • Simmer/Stir to Dissolve Loosen Cooked-on
    Particles Sticking to Bottom of Pan
  • Step 3 Reduce
  • Simmer or Boil until Volume is Reduced via
    Evaporation
  • Thicker Concentrated Flavorful

27
SAUCES
  • Gravy
  • Step 4 Strain
  • Cheesecloth
  • Strainer
  • Sieve
  • China Cap
  • Step 5 Season
  • Last Step
  • Before Reduction Too Salty Strong

28
SAUCES
  • Other Unthickened Sauces
  • Barbecue Sauce
  • Butter Sauce
  • Fruit Sauce
  • Tartar Sauce
  • Tomato Sauce

29
STARCHES AND SAUCES
  • Thickened Sauces
  • Prepared
  • Served
  • Stored
  • w/ Caution
  • Refrigerator Storage
  • Avoid TDZ
  • Storage
  • Quality
  • Deteriorates w/ Improper Storage
  • Keep in Airtight Containers
  • Store in Cool Dry Place
  • Keep Away from Moisture Oxygen Light Pests
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