Term
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Definition
Meat, poultry, dairy, eggs, nuts, and seeds |
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Term
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Definition
Shortening, lard, salad and vegetable oils, margarine and butter May become “invisible” to consumer when used in baked products or fried foods. |
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Term
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Definition
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Term
|
Definition
Flavor Color Texture Tenderness One phase of an emulsification Heat transfer Control of crystallization Sensation of moistness in meat |
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Term
Melting Points of fats are.. |
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Definition
High melting point and solid at room temperature |
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Term
Melting points of oils are ... |
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Definition
Lower melting point and solid at room temperature |
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Term
What three factors influence melting points |
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Definition
by type, form and length of fatty acids. |
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Term
What are the types of fatty acids |
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Definition
Saturated, monounsaturated, or polyunsaturated |
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Term
What does it mean when you refer to "form" of fatty acids |
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Definition
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Term
What does the length mean in terms of fatty acids? |
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Definition
Longer chain fatty acids have higher melting point |
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Term
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Definition
Temperature at which smoke comes from surface of heated fat |
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Term
What does it mean to have different smoke points |
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Definition
High smoke point – good for frying Low smoke point – NOT good choice for frying |
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Term
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Definition
may appear solid at room temperature ---Contain solid fat crystals and liquid oil -These fats can be molded or pressed into shapes without breaking --Plastic NOT brittle --Example: Pressing shortening into a measuring cup |
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Term
What are advantages of hydrogenation |
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Definition
-Neutral flavor -Higher smoke point -Resist oxidation – less likely to become rancid -Solid --Shortening may be creamed with sugar or “cut” into flour --Margarine may be spread on bread |
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Term
What are issues with hydrogenation |
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Definition
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Term
|
Definition
Liquid oils turned into solid “plastic” fats |
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Term
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Definition
-Water-in-fat emulsion -Must have not less than 80 percent fat -Several types are available |
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Term
What types of margarine are not recommended for baking |
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Definition
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Term
Where are vegetables oils obtained from? |
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Definition
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Term
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Definition
Pressing Use of solvents to increase extraction |
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Term
Winterized oils, describe them! |
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Definition
– also called salad oils Remain liquid when refrigerated |
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Term
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Definition
Soybean Cottonseed Olive --Extra virgin, virgin, and pure Canola Sunflower
Safflower Peanut Corn Tropical oils --Palm, Palm kernel, Coconut |
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Term
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Definition
is the fat of cream separated from other milk constituents by agitation |
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Term
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Definition
Fat rendered from fatty tissues of hog |
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Term
What are the good qualities of lard? In what recipe is it traditionally used? |
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Definition
-good "shortening" qualities -used in traditional refried beans |
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Term
Importance of temperature control while frying |
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Definition
Too high – too dark before done Too low – too much fat absorption |
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Term
Fat absorption is influenced by: |
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Definition
Frying temperature, length of cooking, food characteristics, and frying fat condition |
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Term
Things to consider when selecting foods for frying |
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Definition
-Tolerant of high temperatures -High smoke point -Hydrogenated fats are more stable -Nutrition considerations |
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Term
What are the possible purposes for fats that you must consider while buying? |
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Definition
-Deep fat frying -Sautéing -Baking |
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Term
What are some tips to cooking low fat? |
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Definition
Modify recipes to reduce fat
Choose lean meats
Use low fat cooking methods |
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Term
What are some fat-based replacers |
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Definition
-Olestra or Olean® -Salatrim (Benefat) -Emulsifiers |
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Term
what are some carbohydrate-based fat replacers |
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Definition
-Starches, cellulose, gums -Maltodextrins -Polydextrose -Oatrim® and other high fiber ingredients |
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Term
What are some protein-based fat replacers |
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Definition
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|
Term
What are emulsions? provide examples too@ |
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Definition
-One liquid dispersed in another liquid with which it is usually immiscible
-Oil and water -Vinaigrettes -Mayonnaise -Hollandaise sauce |
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Term
what are the four ways emulsions may be classified |
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Definition
-Oil-in-Water -Water-in-Oil -Temporary -Permanent |
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Term
What are temporary emulsions |
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Definition
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Term
What are the basic ingredients of batters and doughs? |
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Definition
-Flour -Leavening agents -Fat -Liquids -Eggs -Sugar and other sweeteners |
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Term
Where is most flour in the US made from? |
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Definition
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Term
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Definition
separation of endosperm from bran and germ |
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Term
What are the grades of flour? |
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Definition
-Patent -Straight grade -Clear grade |
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Term
What is flour enriched with? |
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Definition
-Nutrients -Iron -Addition of vitamin D and calcium is optional |
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Term
What specific nutrients is flour enriched with? |
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Definition
B Vitamins -thiamine -riboflavin -niacin -folic acid |
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Term
What proteins are in flour? |
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Definition
Insoluble gliadin and glutenin |
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Term
What happens when the proteins in flour are moistened, then mixed and kneaded |
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Definition
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Term
What is gluten responsible for? |
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Definition
Gluten is responsible for the viscous and elastic characteristics and high loaf volume of wheat flour doughs. |
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Term
What is gluten formation? what happens if it is over-mixed? what happens if theres too much water? |
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Definition
Hydrate a wheat flour mixture with water then mix to form gluten. -Over-mixed dough – gluten strands may tear -Too much water – interferes with gluten development |
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Term
What are the types of wheat flour? |
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Definition
-bread flour -pastry -cake -self-rising -gluten flour |
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Term
|
Definition
Less gluten forming properties as compared to wheat |
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Term
Cornmeal and corn flour? describe it? |
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Definition
Chief protein is zein Need to combine with flour |
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Term
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Definition
-High in protein, but not gluten -Used with wheat flour for best baking quality |
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Term
What does it mean "to leaven" |
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Definition
To Leaven – To make light and porous |
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Term
What are the major leavening gases in baking? |
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Definition
-air -steam -carbon dioxide |
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Term
How is air incorporated in doughs/baking |
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Definition
-Beating eggs -Creaming fat and sugar -Beating batter -Folding or rolling dough |
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Term
How is carbon dioxide added? |
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Definition
-Action of yeast -Chemical production (baking soda/powder) |
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Term
|
Definition
-sodium bicarbonate -gives off carbon dioxed -used in recipes with acid ingredient (buttermilk, vinegar, cream of tartar) |
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Term
What is the role of fat in flour mixtures? |
|
Definition
It is meant to tenderize or shorten gluten strands |
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Term
What are the results of shortening gluten strands? |
|
Definition
-emulsifiers allow the fat to be more fully dispersed throughout batter -plasticity -butter and margarine are only about 83% -reduced-calorie margarine contain less fat |
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Term
What are the functions of eggs in baking and dough? |
|
Definition
-Incorporate air into batter -Yolks add flavor and color -Form emulsions -Increase rigidity upon being heated ----Egg proteins coagulate when heated |
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Term
What are the functions of sugar in baking and dough? |
|
Definition
-Sweetening -Tenderization -Moisture retention -Contributes to browning -Aids in leavening --Creaming of fat and sugar --Stabilize egg white foams --Provide food for yeast |
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|
Term
difference between batters and doughs? |
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Definition
Batters can pour or be dropped while doughts are thickened enough to be handled |
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Term
Yeast batters are called? |
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Definition
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|
Term
At high altitudes the atmospheric pressure is less therefore |
|
Definition
-Less resistance for leaving gases and greater expansion -Moisture evaporates quickly -Water and liquids boil at lower temperature (below 212°F) |
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Term
|
Definition
in breads, cereals, grains, potatoes, and other foods – provides 70-80% of the world’s calories |
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|
Term
Sources of Starch include? |
|
Definition
|
|
Term
Sources of starch in food? |
|
Definition
-Cereal grains (i.e. corn, wheat, rice, oats) -Legumes (i.e. dried beans) -Roots and tubers (i.e. potato, tapioca, arrowroot) |
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|
Term
is starch a complex or simple carbohydrate |
|
Definition
|
|
Term
What are the two types of glucose molecules that make up starch? |
|
Definition
|
|
Term
Describe Amylose in starch? |
|
Definition
-long, chainlike molecule -gelling characteristics |
|
|
Term
|
Definition
-branched, bushy structure -thickening/cohesion properties |
|
|
Term
|
Definition
Colloidal dispersion that holds shape |
|
|
Term
|
Definition
Intermediate between small particles in solution and large particles in suspension |
|
|
Term
What are some native starches? |
|
Definition
Cornstarch Tapioca Wheat Potato Rice Arrowroot Sago |
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|
Term
Effects of dry heating on starch |
|
Definition
Starch becomes more soluble Reduced thickening ability |
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|
Term
|
Definition
Brown color, nutty, toasted flavor develops |
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|
Term
effects of moist heat on starch |
|
Definition
-Starch granules insoluble in cold water -Colloidal dispersion produced with heating -Starch paste |
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|
Term
|
Definition
With heat, starch granules absorb water and swell Increased viscosity and increased translucency |
|
|
Term
|
Definition
Occurs with standing after gel formation Amylose molecules associate more closely Gel network shrinks Syneresis |
|
|
Term
Factors Affecting Starch Pastes |
|
Definition
Temperature and time of heating
Agitation and stirring
Acidity
Addition of other ingredients |
|
|
Term
How do temp and time of heating affect starch pastes |
|
Definition
Temperature and time of heating Thicker if cooked quickly If undercooked ---Raw starch or pasty flavor ---Less smooth and silky |
|
|
Term
how do agitation or stirring affect starch pastes |
|
Definition
Stirring desirable to disperse starch If excessive – starch granules rupture --Slick and pasty mouthfeel |
|
|
Term
How does acidicity affect starch pastes |
|
Definition
May cause fragmentation and hydrolysis Decrease of thickening power Add acid late in cooking process --i.e. lemon pie |
|
|
Term
How does sugar affect starch pastes |
|
Definition
Sugar -Raises temperature of gelatinization -May decrease viscosity |
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|
Term
How do Fats and proteins affect starch pastes |
|
Definition
Delay hydration of starch Lowers rate of viscosity development |
|
|
Term
what starch sauce is thickened with an emulsion |
|
Definition
|
|
Term
Typical starch choices in desserts |
|
Definition
Corn starch --Clear and glossy Flour Tapioca |
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|
Term
Starch-Thickened Desserts tips |
|
Definition
Separate starch by mixing with sugar then cold liquid
Cook starch mixture before adding eggs --Temper eggs before putting into mix |
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Term
|
Definition
Structure Thicken Color Emulsify Leaven Bind Coat Glaze Clarify |
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|
Term
|
Definition
Emulsions (Lecithin in yolk) Foam Coagulation Clarifying agent Color Flavor |
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|
Term
Describe the composition of whole eggs |
|
Definition
75% water 12% protein 10% fat 1% carbohydrate 1% minerals |
|
|
Term
describe the composition of egg whites |
|
Definition
88% water 4g protein 0g fat Trace minerals |
|
|
Term
describe the composition of egg yoilk |
|
Definition
49% water 3g protein 5g fat |
|
|
Term
What protein is in egg whites? |
|
Definition
|
|
Term
What protein is in egg yolks? |
|
Definition
|
|
Term
|
Definition
Triglycerides Phospholipids Cholesterol |
|
|
Term
Describe the structure of egg shells? |
|
Definition
Porous --Allows exchange of gas and moisture Shell color has no impact on flavor or nutrition Protective coating --Cuticle or Bloom --Replaced with oil after washing |
|
|
Term
What does the chalazae do for the egg? |
|
Definition
its the thickened "rope=like" white that anchors yolk |
|
|
Term
Do germinal discs differ between fertile and infertile eggs |
|
Definition
|
|
Term
|
Definition
-Stand high when broken onto a plate -Yolk stands high and round -Two “layers” of egg white evident -Small air cells -Yolks are slightly acidic |
|
|
Term
|
Definition
-Spreads out when broken onto a plate -Yolk does not stand high and round -One “layer” of white that spreads out -Large air cells -Egg becomes more alkaline |
|
|
Term
Egg flavor and odor are affected by? |
|
Definition
|
|
Term
How does an egg's air cell provide an indication of its age? |
|
Definition
large the air cell, the older the egg |
|
|
Term
Why do eggs have excellent binding properties |
|
Definition
their high protein content |
|
|
Term
How are eggs used in emulsifying |
|
Definition
Egg Yolk contains lecithin used to thicken & stabilize emulsions |
|
|
Term
How are egg substitutes different than regular eggs |
|
Definition
-contain no or very little yolk -contain a high concentration of egg white -provide a low-cholesterol egg product |
|
|
Term
Effects on temperature and time on eggs? |
|
Definition
Keep Temperatures Low Cooking Times Short Coagulation Temperatures Egg White 140ºF - 158ºF 60ºC – 70ºC Egg Yolk 144ºF - 158ºF 62ºC – 70ºC Beaten Eggs Coagulate at Slightly Higher Temperature ~ ---156ºF 69ºC |
|
|
Term
How does heat coagulation of eggs work? |
|
Definition
Denatures egg proteins Proteins aggregate into a three dimensional gel network
Network stabilized by cross bonds -Disulfide bonds -Hydrogen bonds |
|
|
Term
How does the coagulation of eggs by beating work? |
|
Definition
Beating causes part of the proteins to become coagulated Egg whites -Become foamy, then form soft and stiff peaks -Over beaten – then dry and flocculated Whole eggs --Will beat stiffer Egg yolks --Increase slightly in volume |
|
|
Term
Effect of fat, salt, acid, or sugar to egg white foams ? |
|
Definition
Fat ---interferes Salt ---decrease volume and stability Acid---increases stability and increases whipping time Sugar---increases beating time and Increases stability |
|
|
Term
Describe the structure and composition of bran? |
|
Definition
15% of kernel High fiber and mineral ash Contains some fat |
|
|
Term
Describe the structure and composition of endosperm |
|
Definition
83% of kernel High starch Contains protein Very low vitamin, mineral, and fat content |
|
|
Term
Describe the structure and composition of Germ |
|
Definition
2-3% of kernel Rich in fat, protein, ash, and vitamins |
|
|
Term
Are grains a complete protein source? |
|
Definition
|
|
Term
Refined flours and cereals are made from? and enriched with? |
|
Definition
-endosperm -b vitamins, iron, folic acid |
|
|
Term
Whole grain consumption associated with reduced risk of |
|
Definition
Cancer Cardiovascular heart disease Diabetes Obesity |
|
|
Term
Most common to least common cereal grains |
|
Definition
Wheat Rice Corn Barley Millet Sorghum Oats Rye |
|
|
Term
|
Definition
Dry 6-12 Months- Must be free of bran & germ Airtight Containers Cool Dry Clean Environment
Also can be Refrigerated or Frozen |
|
|
Term
Classes of wheat are based on |
|
Definition
-winter or spring (when planted) -Hard or soft -Color |
|
|
Term
|
Definition
|
|
Term
What are the different types of rice that can be grown? |
|
Definition
Long grain Medium grain Short grain Also specialty rice varieties Jasmine, basmati, Arborio, waxy rice |
|
|
Term
|
Definition
Most of outer hull removed Most of germ and bran remain Groats: Oats, Barley or Buckwheat that include the germ Quick rolled oats Old-fashioned rolled oats |
|
|
Term
What are the different types of pasta |
|
Definition
Whole Wheat---Higher in nutrients with increased texture Flavored---Vegetable Purees, Herbs Fanciful---Unusual Shapes High-Protein ---Added Soy Wheat Germ Couscous--- Moroccan Pasta |
|
|
Term
|
Definition
in breads, cereals, grains, potatoes, and other foods – provides 70-80% of the world’s calories |
|
|
Term
Sources of Starch include? |
|
Definition
|
|
Term
Sources of starch in food? |
|
Definition
-Cereal grains (i.e. corn, wheat, rice, oats) -Legumes (i.e. dried beans) -Roots and tubers (i.e. potato, tapioca, arrowroot) |
|
|
Term
is starch a complex or simple carbohydrate |
|
Definition
|
|
Term
What are the two types of glucose molecules that make up starch? |
|
Definition
|
|
Term
Describe Amylose in starch? |
|
Definition
-long, chainlike molecule -gelling characteristics |
|
|
Term
|
Definition
-branched, bushy structure -thickening/cohesion properties |
|
|
Term
|
Definition
Colloidal dispersion that holds shape |
|
|
Term
|
Definition
Intermediate between small particles in solution and large particles in suspension |
|
|
Term
What are some native starches? |
|
Definition
Cornstarch Tapioca Wheat Potato Rice Arrowroot Sago |
|
|
Term
Effects of dry heating on starch |
|
Definition
Starch becomes more soluble Reduced thickening ability |
|
|
Term
|
Definition
Brown color, nutty, toasted flavor develops |
|
|
Term
effects of moist heat on starch |
|
Definition
-Starch granules insoluble in cold water -Colloidal dispersion produced with heating -Starch paste |
|
|
Term
|
Definition
With heat, starch granules absorb water and swell Increased viscosity and increased translucency |
|
|
Term
|
Definition
Occurs with standing after gel formation Amylose molecules associate more closely Gel network shrinks Syneresis |
|
|
Term
Factors Affecting Starch Pastes |
|
Definition
Temperature and time of heating
Agitation and stirring
Acidity
Addition of other ingredients |
|
|
Term
How do temp and time of heating affect starch pastes |
|
Definition
Temperature and time of heating Thicker if cooked quickly If undercooked ---Raw starch or pasty flavor ---Less smooth and silky |
|
|
Term
how do agitation or stirring affect starch pastes |
|
Definition
Stirring desirable to disperse starch If excessive – starch granules rupture --Slick and pasty mouthfeel |
|
|
Term
How does acidicity affect starch pastes |
|
Definition
May cause fragmentation and hydrolysis Decrease of thickening power Add acid late in cooking process --i.e. lemon pie |
|
|
Term
How does sugar affect starch pastes |
|
Definition
Sugar -Raises temperature of gelatinization -May decrease viscosity |
|
|
Term
How do Fats and proteins affect starch pastes |
|
Definition
Delay hydration of starch Lowers rate of viscosity development |
|
|
Term
what starch sauce is thickened with an emulsion |
|
Definition
|
|
Term
Typical starch choices in desserts |
|
Definition
Corn starch --Clear and glossy Flour Tapioca |
|
|
Term
Starch-Thickened Desserts tips |
|
Definition
Separate starch by mixing with sugar then cold liquid
Cook starch mixture before adding eggs --Temper eggs before putting into mix |
|
|
Term
|
Definition
Structure Thicken Color Emulsify Leaven Bind Coat Glaze Clarify |
|
|
Term
|
Definition
Emulsions (Lecithin in yolk) Foam Coagulation Clarifying agent Color Flavor |
|
|
Term
Describe the composition of whole eggs |
|
Definition
75% water 12% protein 10% fat 1% carbohydrate 1% minerals |
|
|
Term
describe the composition of egg whites |
|
Definition
88% water 4g protein 0g fat Trace minerals |
|
|
Term
describe the composition of egg yoilk |
|
Definition
49% water 3g protein 5g fat |
|
|
Term
What protein is in egg whites? |
|
Definition
|
|
Term
What protein is in egg yolks? |
|
Definition
|
|
Term
|
Definition
Triglycerides Phospholipids Cholesterol |
|
|
Term
Describe the structure of egg shells? |
|
Definition
Porous --Allows exchange of gas and moisture Shell color has no impact on flavor or nutrition Protective coating --Cuticle or Bloom --Replaced with oil after washing |
|
|
Term
What does the chalazae do for the egg? |
|
Definition
its the thickened "rope=like" white that anchors yolk |
|
|
Term
Do germinal discs differ between fertile and infertile eggs |
|
Definition
|
|
Term
|
Definition
-Stand high when broken onto a plate -Yolk stands high and round -Two “layers” of egg white evident -Small air cells -Yolks are slightly acidic |
|
|
Term
|
Definition
-Spreads out when broken onto a plate -Yolk does not stand high and round -One “layer” of white that spreads out -Large air cells -Egg becomes more alkaline |
|
|
Term
Egg flavor and odor are affected by? |
|
Definition
|
|
Term
How does an egg's air cell provide an indication of its age? |
|
Definition
large the air cell, the older the egg |
|
|
Term
Why do eggs have excellent binding properties |
|
Definition
their high protein content |
|
|
Term
How are eggs used in emulsifying |
|
Definition
Egg Yolk contains lecithin used to thicken & stabilize emulsions |
|
|
Term
How are egg substitutes different than regular eggs |
|
Definition
-contain no or very little yolk -contain a high concentration of egg white -provide a low-cholesterol egg product |
|
|
Term
Effects on temperature and time on eggs? |
|
Definition
Keep Temperatures Low Cooking Times Short Coagulation Temperatures Egg White 140ºF - 158ºF 60ºC – 70ºC Egg Yolk 144ºF - 158ºF 62ºC – 70ºC Beaten Eggs Coagulate at Slightly Higher Temperature ~ ---156ºF 69ºC |
|
|
Term
How does heat coagulation of eggs work? |
|
Definition
Denatures egg proteins Proteins aggregate into a three dimensional gel network
Network stabilized by cross bonds -Disulfide bonds -Hydrogen bonds |
|
|
Term
How does the coagulation of eggs by beating work? |
|
Definition
Beating causes part of the proteins to become coagulated Egg whites -Become foamy, then form soft and stiff peaks -Over beaten – then dry and flocculated Whole eggs --Will beat stiffer Egg yolks --Increase slightly in volume |
|
|
Term
Effect of fat, salt, acid, or sugar to egg white foams ? |
|
Definition
Fat ---interferes Salt ---decrease volume and stability Acid---increases stability and increases whipping time Sugar---increases beating time and Increases stability |
|
|
Term
Describe the structure and composition of bran? |
|
Definition
15% of kernel High fiber and mineral ash Contains some fat |
|
|
Term
Describe the structure and composition of endosperm |
|
Definition
83% of kernel High starch Contains protein Very low vitamin, mineral, and fat content |
|
|
Term
Describe the structure and composition of Germ |
|
Definition
2-3% of kernel Rich in fat, protein, ash, and vitamins |
|
|
Term
Are grains a complete protein source? |
|
Definition
|
|
Term
Refined flours and cereals are made from? and enriched with? |
|
Definition
-endosperm -b vitamins, iron, folic acid |
|
|
Term
Whole grain consumption associated with reduced risk of |
|
Definition
Cancer Cardiovascular heart disease Diabetes Obesity |
|
|
Term
Most common to least common cereal grains |
|
Definition
Wheat Rice Corn Barley Millet Sorghum Oats Rye |
|
|
Term
|
Definition
Dry 6-12 Months- Must be free of bran & germ Airtight Containers Cool Dry Clean Environment
Also can be Refrigerated or Frozen |
|
|
Term
Classes of wheat are based on |
|
Definition
-winter or spring (when planted) -Hard or soft -Color |
|
|
Term
|
Definition
|
|
Term
What are the different types of rice that can be grown? |
|
Definition
Long grain Medium grain Short grain Also specialty rice varieties Jasmine, basmati, Arborio, waxy rice |
|
|
Term
|
Definition
Most of outer hull removed Most of germ and bran remain Groats: Oats, Barley or Buckwheat that include the germ Quick rolled oats Old-fashioned rolled oats |
|
|
Term
What are the different types of pasta |
|
Definition
Whole Wheat---Higher in nutrients with increased texture Flavored---Vegetable Purees, Herbs Fanciful---Unusual Shapes High-Protein ---Added Soy Wheat Germ Couscous--- Moroccan Pasta |
|
|