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Inman domain 1 topic A
Food
376
Other
Post-Graduate
06/12/2018

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Term
___ are 75-93% water.
Definition
Fruits and vegetables
Term
Main f/v w/ Ca?
Definition
oranges, greens
Term
Main vitamins in f/v?
Definition
C, A, some B
Term
What 2 non-digestible CHO increase in f/v w/ age and don't soften with cooking?
Definition
Hemicellulose and Lignin
Term
Describe Hemicellulose and Lignin.
Definition
2 non-digestible CHO that increase in f/v w/ age and don't soften with cooking.
Term
What is the limiting amino acid in soybeans?
Definition
Methionine
Term
Methionine is the limiting amino acid in what?
Definition
Soybeans
Term
What percent are soybean protein concentrates?
Definition
=/> 70%
Term
What % are soybean protein isolates?
Definition
=/> 90%
Term
What is used in textured protein products? (TVP)
Definition
Soybeans are used
Term
In ripe fruit, protopectin is converted to
Definition
pectin
Term
In overripe fruit, pectin is converted to
Definition
pectic acid
Term
What is used to accelerate ripening of fruits during storage?
Definition
Ethylene gas
Term
Most produce can be stored...
Definition
in the fridge
Term
Store frozen fruit...
Definition
At or near 0 F
Term
Store dried fruit...
Definition
At room temp
Term
Aging is delayed in apples stored in controlled atmosphere because of
Definition
reduced oxygen
Term
Fruits that brown when cut do so because
Definition
They are low in VC, which would stop the enzymatic action (antioxidant)
Term
When sweetener is added to liquid of a packing juice, the density is expressed as
Definition
a % by weight of sucrose
Term
Green pigment is what?
Definition
Chlorophyll
Term
What 2 pigments are insoluble in water
Definition
Chlorophyll and carotenoids
Term
Chlorophyll and carotenoids are
Definition
insoluble in water
Term
What pigments are yellow/orange?
Definition
carotenoids
Term
What pigments are red?
Definition
Lycopenes
Term
What color is the pigment of lycopenes?
Definition
Red
Term
What 2 pigments are flavonoids?
Definition
Anthocyanins and anthoxanthins/flavones
Term
Anthocyanins and anthoxanins/flavones are
Definition
flavonoids
Term
What pigment is red/blue/purple?
Definition
anthocyanins
Term
Anthocyanins are what color?
Definition
red/blue/purple
Term
What pigment is white?
Definition
anthoxanthins/flavones
Term
Anthoxanthins/flavones are what color?
Definition
White
Term
What pigment is least affected by changes in pH?
Definition
Carotenoids
Term
What pigment is greatest affected by changes in pH?
Definition
Anthocyanins
Term
Chlorophyllin is what color in alkaline?
Definition
Bright green (mushy, hemicellulose broken down)
Term
Pheophytin is what color in acid?
Definition
Olive green
Term
What 2 pigments are soluble in water?
Definition
Flavonoids - Anthocyanins and anthoxanthins/flavones
Term
What pigment is bright red in acid?
Definition
anothcyanins
Term
What pigment is bluish in alkaline?
Definition
anothcyanins
Term
What pigment is colorless in acid?
Definition
Anthoxanthins
Term
Some starchy veggies
Definition
Peas, corn, lima beans, potatoes
Term
MSG is a salt made from
Definition
glutamic acid found in young veggies
Term
Sulfur is in what veggies
Definition
onions, cabbage
Term
Fruit flavor comes from these 3 things
Definition
Acids, sugar, aromatic compounds
Term
What compound causes astringent (sour) flavor such as in underripe banana?
Definition
Tannins
Term
F/v are graded by
Definition
USDA
Term
Grade A (fancy) canned f/v would be used in
Definition
salads, desserts
Term
Grade B canned f/v would be used in
Definition
processed foods (choice)
Term
Grade C canned f/v would be used in
Definition
puddings, pies (standard)
Term
Grades of fresh produce:
Definition
Fancy, Extra #1, #1, Combination, #2
Term
What F/V grade is fancy
Definition
A
Term
What f/v grade is choice
Definition
B
Term
What f/v grade is standard
Definition
C
Term
Why would a potato develop green chlorophyll under the skin?
Definition
It was exposed to light during storage
Term
What natural toxicant can be found if potatoes are exposed to light during storage, causing green chlorophyll to develop under the skin?
Definition
Solanine
Term
Standard way to boil f/v
Definition
small amount of salted water for a short time
Term
How to boil acidic v
Definition
more water, no lid
Term
What to know about pressure cooking?
Definition
Retains flavor/color; cut small
Term
Why do frozen f/v have shorter cooking times?
Definition
Bc blanching/freezing have made them tender
Term
How to cook cabbage to minimize strong flavor?
Definition
-short time
-lid off at first to let acids escape
-lots of water
Term
How to cook cauliflower?
Definition
Short time, covered
Term
Myofibrils
Definition
bundles of muscle fibers
Term
____ hold muscle fibers in bundles
Definition
connective tissue
Term
Collagen is the structural part of the tendon that
Definition
surrounds muscle
Term
In heat, collagen is hydrolyzed to
Definition
gelatin, becomes tender
Term
Which connective tissue is resistant to heat and has little change in cooking?
Definition
elastin
Term
Where do you find elastin? what color is it?
Definition
yellow, in ligaments/cartilage
Term
What connective tissue is in ligaments/cartilage?
Definition
elastin
Term
What connective tissue is part of the tendon that surrounds muscle?
Definition
collagen
Term
In terms of fat, what is 'finish'?
Definition
The amount of fat cover on carcas.
Term
What % protein is meat
Definition
16-23%
Term
Where would CHO come from in meat
Definition
glycogen from liver, glucose from blood
Term
What v/m in meat?
Definition
Thiamine, niacin, riboflavin, Fe, Cu, trace minerals
Term
How does fish meat compare to other meat
Definition
Less fat, more moisture
Term
What meat as less fat and more moisture
Definition
Fish
Term
All fish are high in what macro
Definition
protein
Term
What fish have high Ca
Definition
Canned w/ bones (anchovies, oysters, shrimp)
Term
TVP stands for
Definition
Textured vegetable protein
Term
Soy protein adds juiciness because of
Definition
water content
Term
Main contributor to meat color:
Definition
myoglobin
Term
What makes fresh meat red?
Definition
Myoglobin + oxygen
Term
What colors does meat turn the older it gets?
Definition
Myoglobin + oxygen goes from red, to brown, to green
Term
Meat aging increases
Definition
tenderness
Term
How long to age/ripen meat in cold storage
Definition
10 days
Term
Why do we age meat
Definition
To allow enzymes to create changes in muscle protein to increase the WATER-HOLDING CAPACITY of the muscle
Term
What other 2 things can tenderize meat
Definition
acid (vinegar) and salt
Term
Why does acid (vinegar) and/or salt increase meat tenderness?
Definition
They increase the water holding capacity
Term
Physical activity of an animal will ___ increase tenderness.
Definition
NOT
Term
Explain storage sous vide
Definition
vacuum packing meat in an O2 impermeable film stored unfrozen at 0C (anaerobic). Extends storage life of meat
Term
What does MAP stand for?
Definition
Modified atmosphere packaging
Term
What does MAP do?
Definition
Modified atmosphere packaging - air is replaced with CO2 or nitrogen
Term
WHEN is meat graded? By who?
Definition
At slaughter, USDA
Term
Who grades meat?
Definition
USDA
Term
Wholesome Meat Act of 1967
Definition
Assures animal healthy at slaughter, fit for human consumption. Round purple stamp "USDA inspected and passed"
Term
Meat grading indicates
Definition
quality
Term
Grades of meat starting with best:
Definition
Prime, choice, select, standard
Term
What grade of meat has the most marbling? The least?
Definition
Most- prime, least- standard
Term
What section of USDA grades meat?
Definition
Agriculture marketing service
Term
Meat grading based on
Definition
maturity, marbling, color/texture of muscle
Term
How you cook meat is based on the
Definition
cut
Term
Tender meat cuts come from
Definition
the least used muscles (loin (porkchops), backbone)
Term
Medium tender meats from from
Definition
chuck (shoulder)
Term
The least tender meats come from
Definition
the most used muscles (flank, brisket)
Term
Temperature to roast meat
Definition
325F
Term
What type of cooking meat yields less waste?
Definition
Slow-cooked roast
Term
When to insert -meat- thermometer?
Definition
BEFORE cooking
Term
What happens to protein (meat, eggs) when you cook it?
Definition
It coagulates
Term
Why do tough cuts of meat need to be cooked well done?
Definition
They have more collagen which needs more time to be softened
Term
Why does the meat on the surface brown during cooking?
Definition
Breakdown of pigments. Remember myoglobin + oxygen - red, brown, green; as it breaks down
Term
What happens to iron in meat when you cook it
Definition
oxidized
Term
Interior of meat color change order when cooking:
Definition
red-pink-brown-gray
Term
Adding vinegar to meat tenderizes it by increasing water holding capacity, but ALSO
Definition
lowers pH
Term
Why are cured meats pink?
Definition
From nitrites
Term
Nitrates cause cured meats to appear
Definition
pink
Term
What type of cooking for tender cuts?
Definition
Dry heat- frying, broiling, roasting
Term
What type of cooking for less tender cuts with more connective tissue?
Definition
Moist heat- braising, simmering, steaming, stewing
Term
Cook w/ dry heat for
Definition
tender cuts
Term
Cook w/ moist heat for
Definition
less tender cuts
Term
Less tender cuts with more connective tissue:
Definition
bottom round, chuck, brisket
Term
Fat used for frying should have a smoke point above
Definition
400F
Term
How long does carry over cooking occur in roasts just removed from oven?
Definition
10 min
Term
How high does internal temp rise in carry over cooking?
Definition
15-25F
Term
How many mins to let roast stand before carving?
Definition
30 min
Term
How to cook bottom round?
Definition
in water for several hours
Term
How to braise meat
Definition
flour meat, brown, cover and simmer
Term
What type of heat is braising
Definition
moist - can be done in oven or on top
Term
What type of heat is broiling
Definition
Dry - a radiated heat.
Term
Store fish at lower temps than meat bc
Definition
more perishable than other meat
Term
Fish is fresh when
Definition
bright red gills, bright shiny skin
Term
Fish not fresh when
Definition
grey gills (dull)
Term
What is used to create crab/seafood analogs?
Definition
Surimi - purified and frozen minced fish + preservative + sometimes egg white or starch to create texture
Term
What is surimi?
Definition
used to create crab/seafood analogs. purified and frozen minced fish + preservative + sometimes egg white or starch to create texture
Term
What does an egg's bloom do
Definition
covers egg and prevents excessive loss and protects contents
Term
Egg shell color means...
Definition
nothing, not correlated w/ value/quality
Term
What becomes larger in egg with age
Definition
air space
Term
How is good egg quality indicated?
Definition
High proportion of thick white part (can be judged by candling)
Term
Yolk is surrounded by
Definition
vitelline membrane (only fertilized)
Term
Chalazae is
Definition
yolk anchors to hold in center
Term
What is a naturally occurring oil in water emulsion?
Definition
Egg yolk
Term
Nutrient content of 1 egg
Definition
80kcals, 6g pro (1 serving), 5g fat (1 serving), vitamins A/D, riboflavin
Term
Which part of the egg has more nutrients
Definition
yolk, theyre more concentrated,
Term
What part of egg is 11% protein
Definition
white
Term
What part of the egg is 17.5% protein
Definition
yolk
Term
Yolk color depends on...
Definition
Pigment amount/type in hens diet
Term
What part of the egg has more protein by weight
Definition
the yolk. 17.5%. has more fat, minerals, vitamins
Term
Egg quality graded by
Definition
candling
Term
Egg grading does NOT include
Definition
shell color, egg size
Term
Egg grading DOES include
Definition
thickness of white part, location/condition of yolk
Term
Egg grades:
Definition
AA, A, B
Term
How is size of egg determined?
Definition
Weight per dozen
Term
Egg weight ranges per dozen
Definition
Jumbo 30oz, Extra large 27oz, large 24oz, medium 21oz, small 18 oz, peewee 15oz
Term
How long store eggs
Definition
6 months cold storage 29-32F if grade A eggs at least
Term
Temp to store eggs
Definition
29-32F
Term
Trick to determine egg freshness
Definition
fresh egg sinks in cold water + has dull rough shell
Term
Temp for egg protein coagulation
Definition
62-70C (sets a custard)
Term
What temp to cook eggs to make custard
Definition
62-70C
Term
Functions of eggs in cooking
Definition
bind, give firmness, stability, coat food, brown, clarify liquids
Term
Liquid released from coagulating eggs occurs why and causes what?
Definition
Cooked at too high/low temp; causes tough watery product
Term
What happens when egg foam is heated?
Definition
Air expands, egg white stretches and protein coagulates
Term
What happens when you add acid to an egg white foam?
Definition
It stiffens it by tenderizing the protein and allowing it to extend more easily
Term
How is specific gravity calculated
Definition
the weight of a given volume divided by the weight of the same volume of water
Term
Egg whites at room temperature whip more quickly and yield a larger volume due to
Definition
LOWER surface tension
Term
Egg whites whipped at room temperature have a lower surface tension, which causes
Definition
them to whip more quickly and yield a larger volume
Term
Besides acid, what also stabilizes and egg white foam?
Definition
Sugar
Term
What 2 things stabilize an egg white foam
Definition
acid and sugar
Term
What part of the egg is the better emulsifier? (stiffer, more stabilized)
Definition
Yolk bc it has more protein by weight
Term
What in the yolk helps it act as an emulsifier?
Definition
Lecithin
Term
What is an example of a food emulsion stabilized by egg yolk?
Definition
Mayo
Term
What 2 methods of cooking eggs need high quality eggs bc appearance is important?
Definition
Poaching or coddling
Term
What 2 methods of cooking eggs are water methods?
Definition
Poaching and coddling
Term
What 2 things improve shape when water cooking eggs by hastening coagulation?
Definition
Vinegar and salt
Term
WHEN does surface of egg yolk turn green?
Definition
overcooked or cooled slowly
Term
WHY does surface of egg yolk turn green?
Definition
Fe in yolk + sulfur from everywhere = ferrous sulfide
Term
What compound makes surface of egg yolks green when overcooked or cooled slowly?
Definition
Ferrous sulfide
Term
Undercooking eggs in a oven results in...
Definition
Excessive shrinkage when removed from oven
Term
Don't make custards from...
Definition
dehydrated eggs
Term
When freezing eggs...
Definition
remove shell first, can add salt or sugar to stabilize egg yolks
Term
What makes baker's special eggs special?
Definition
Sucrose added to improve foaming ability
Term
What makes egg substitutes different from eggs?
Definition
Lower in fat/kcals/chol; higher in Na; there will be color and flavor differences in final pdt
Term
What happens when eggs are stored in fridge too long?
Definition
Odors absorbed, loss of CO2 makes eggs more alkaline, watery whites, flat yolks
Term
HBV protein means
Definition
High biological value
Term
Milk and eggs are both ___ protein.
Definition
HBV
Term
Liquid that drains from the curd of clotted milk is:
Definition
whey
Term
Milk is __% casein
Definition
80
Term
Milk is a good source of
Definition
Ca, P, riboflavin, vitamins A/D
Term
Milk is low in
Definition
iron
Term
Pasteurization
Definition
destroys pathogenic bacteria
Term
The pasteurization process entails
Definition
145F for 30 min or 160F for 15 seconds; destroys lipase
Term
Homogenized milk means
Definition
High pressure breaks down fat globules to 1/5th size, film of protein surrounds each globule
Term
How much vitamin D needs to be added to milk so it can be labeled vitamin D milk?
Definition
400 USP units per quart
Term
Low fat milk %
Definition
0.5-2%
Term
skim milk fat %
Definition
<0.5%
Term
Concentrated milk has had __% of the water removed
Definition
60
Term
Concentrated milk has a brown color due to
Definition
caramelization of lactose during canning
Term
Minimum % milk fat in concentrated milk
Definition
7.9%
Term
Sweetened condensed milk contains
Definition
15-18% sucrose or glucose
Term
Dried whole milk is __% fat
Definition
26%, does not keep well
Term
Dried skim milk is not more than __% fat
Definition
1.5%, keeps well
Term
Fermented milks:
Definition
cultured buttermilk, sweet acidophilus milk, kefir, yogurt
Term
When using buttermilk in place of regular milk in a recipe, increase the
Definition
baking soda
Term
What kind of milk is illegal in some states
Definition
Filled milk
Term
What is filled milk
Definition
skim milk + veg fat/coconut oil + water
Term
Milk fat is made from
Definition
casein derivatives or soybean protein and veg oils
Term
When milk is HEATED, ____ precipitates on bottom of pan or top of milk.
Definition
WHEY PROTEIN
Term
When heating: To prevent milk from coating sides of pan,
Definition
heat over water
Term
When heating: to prevent casein curdling...
Definition
Add acid slowly and aggitate
Term
An ACID precipitates what in heating milk?
Definition
CASEIN
Term
Butter is __% milk fat
Definition
80%
Term
Margarine is __% veg oil/animal fat
Definition
80%
Term
Butter turns rancid when...
Definition
it takes up oxygen and releases hydrogen
Term
Heavy cream is __% fat
Definition
36%
Term
Half and half is no less than __% fat
Definition
10.5%
Term
3 steps to cheese production
Definition
1. warm milk, add lactic acid bacteria
2. add enzyme rennet -> casein coagulates, forms curd
3. Separate curd from whey (liquid)
Term
Uncured cheese
Definition
fridge immediately - cottage cheese
Term
Cured cheese
Definition
extra whey removed, salt added, ripened
Term
Processed cheese contains
Definition
Disodium phosphate emulsifier added
Term
Disodium phosphate
Definition
emulsifier added to processed cheese
Term
Cook cheese at
Definition
short time, moderate temps
Term
The starchy endosperm is rich in
Definition
protein
Term
The germ contains the _____ which has most of the_____
Definition
The germ contains the _scutellum_ which has most of the _thiamine_
Term
Grains and cereals are ____ proteins.
Definition
partially complete
Term
Grains and cereals are __% fat
Definition
2% fat, found in the germ
Term
In grains and cereals, vitamin E is found in the
Definition
germ
Term
Vitamins/minerals found in the germ:
Definition
VE, thiamin, riboflavin, phosphorus
Term
Milling
Definition
separates large flour particles from finer ones to improve baking quality
Term
Farina
Definition
inner portion of wheat kernel
Term
Quick-cooking cereals have disodium phosphate added to
Definition
increase alkalinity so particles swell faster (avoid on low sodium diets)
Term
Whole wheat flours spoil quickly due to
Definition
fat in the germ
Term
Bread Flour (hard wheat)
Definition
strong gluten, 11.8% protein
Term
All -purpose flour (blend of hard and soft wheat)
Definition
less gluten, 10.5% protein
Term
Pastry flour (soft wheat)
Definition
weaker gluten, 7.9% pro
Term
Cake flour (soft wheat)
Definition
least and weakest gluten, more starch, 7.5% pro
Term
Wheat flours are enriched with
Definition
thiamine, riboflavin, niacin, iron, folic acid
Term
No pre-sifting is needed with which flour?
Definition
Wheat
Term
Self-rising flours contain
Definition
flour, baking powder, salt
Term
Alimentary pastes
Definition
a shaped and dried dough (such as macaroni, spaghetti, and vermicelli) prepared from semolina, farina, or wheat flour or a mixture of these with water or milk and with or without egg or egg yolk.
Term
Alimentary pastes can be made from
Definition
durum wheat, cuz high in gluten
Term
How is semolina flour made
Definition
bran/germ removed, starch is ground
Term
Rice cooking tips
Definition
Use exactly enough water - draining after = V/M losses. 1 cup rice-2 cups water.
Term
Fx properties of gluten
Definition
elasticity, framework
Term
Gluten contains
Definition
gliadin and glutenin
Term
Flour oxidizes during storage and turns from _______ to _______
Definition
yellow to white
Term
A flour will be labeled ____ if an oxidizing agent is added.
Definition
bleached
Term
Leavening
Definition
cause (dough or bread) to ferment and rise
Term
Flour strength refers to
Definition
capacity to retain leavening
Term
Adding bran to a flour decreases the ___ of the end pdt
Definition
volume
Term
How do you compensate for the decreased volume of pdts made with bran?
Definition
Add flour and liquid
Term
What does liquid do in flour baking? 3 things
Definition
1) hydrates gluten and starts its development
2) starts action of chemical leavening agent
#) dissolved salt/sugar; gelatinizes starch
Term
To incorporate air when baking:
Definition
beat, sift, fold, or cream
(angel cake, sponge cake)
Term
Yeast consuming sugar generates
Definition
CO2 and alcohol
Term
Baking acids include:
Definition
sour milk, cream of tartar, molasses
Term
Baking powder is what?
Definition
Baking soda + a dry acid + cornstarch
Term
Use ____ baking powder per cup flour
Definition
1.5 tsp
Term
You can lose thiamin in baked goods if you cook with this
Definition
old baking powder bc its more alkaline causing loss of thiamine
Term
What keeps yeast from sticking?
Definition
Salt
Term
Fx of eggs in baking
Definition
stability, retains leavening agent, emulsification, introduces air, adds color/flavor
Term
Fx of fat in baking
Definition
adds tenderness by coating gluten particles
Term
Hygroscopic
Definition
absorb moisture from the air. sugar
Term
This can soften gluten and prevent gluten development by absorbing some of the water that gluten needs
Definition
sugar
Term
sugar modified texture by
Definition
tenderizing d/t hygroscopic
Term
Too much sugar in baking causes
Definition
coarse cells, thick walls, shiny crust, crumbly pdt
Term
Most of the sugar in honey is
Definition
glucose and fructose
Term
How much sweet and low to use in a recipe when substituting it for sugar?
Definition
Half as much
Term
Beating
Definition
Beating is a more intense process than mixing and traditionally requires a whisk or electric mixer. The goal in beating is often more than just combining ingredients together, but also to introduce air into the mixture. Tip the bowl slightly on edge away from you while beating if you are using a whisk.
Term
Mixing tips
Definition
use a bowl with sloping sides only half full
Term
to cream something means
Definition
like creaming butter into sugar
Term
Cut-in means
Definition
distributing fat into dry ingredients
Term
Whip
Definition
beating rapidly to incorporate air to create a foam
Term
Stir
Definition
less intense than beating, goal is to mix ingredients
Term
Examples of quick breads
Definition
muffins, biscuits, popovers
Term
Muffin method of mixing
Definition
1) sift dry ingredients, make well in center
2) blend liquids and add all at once
3) Mix just enough to dampen
Term
Excess mixing of muffin mix causes
Definition
loss of CO2, overdeveloped gluten, vertical tunneling, tough, heavy
Term
A good muffin should have
Definition
a pebbled top and symmetrical shape
Term
Cake method of mixing
Definition
1) cream fat with sugar
2) add egg
3) add sifted dry ingredients in portions alternating with portions of milk
Term
Too much sugar in cake baking can cause
Definition
gummy, crystalline appearance from gluten falling into center
Term
What causes yellow cakes
Definition
whole eggs or alkaline batter (excess soda)
Term
What causes a fallen center in cake baking?
Definition
excess sugar, fat, or baking powder, or inadequate mixing, oven temp too low, open door during early baking
Term
What causes a tough, dry crumb in cake baking?
Definition
too much flour, egg, or mixing; or too little fat or sugar, over-baking
Term
What causes a coarse texture in cake baking?
Definition
too much baking powder or sugar, oven temp too low, inadequate mixing
Term
What causes a poor volume in cake baking?
Definition
too little baking powder, improper level of sugar or fat
Term
Describe cookies
Definition
a modified shortened cake: higher fat, lower sugar/liquid
Term
Lard and oil are both ___% fat
Definition
100%
Term
When substituting butter for lard, you need to
Definition
use more butter because its only 80% fat and lard is 100% fat
Term
4 components of pastrys
Definition
flour fat liquid salt
Term
How to mix pastry dough
Definition
cut fat into flour and salt, add liquid. Avoid over-handling
Term
pastry baking temp and time
Definition
425-450F 10-15 mins
Term
How to make pastrys more flaky
Definition
leave the fat in coarse particles when cutting into the flour
Term
Pour batter cups of liquid/flour ratio:
Definition
1:1 (waffles)
Term
Drop batter cups of liquid/flour ratio:
Definition
1:2 (muffins)
Term
Soft dough cups of liquid/flour ratio:
Definition
1:3 (bread)
Term
Stiff dough cups of liquid/flour ratio:
Definition
1:4 (pie crust)
Term
When deep frying, to absorb the most fat, use a batter that
Definition
is high fat high sugar
Term
Yeast dough requires a ___________ bread flour
Definition
high protein
Term
straight dough method
Definition
all ingredients are added before dough is allowed to rise
Term
sponge method
Definition
liquid + yeast + part of the flour. ferment several hours. add sugar, salt, fat, remaining flour, knead.
Term
Proofing time
Definition
final rising of the dough
Term
Proofing time is shortened with what method of preparing dough
Definition
sponge method
Term
Baking at high altitudes
Definition
Decreased pressure causes gas to expand faster and steam to form earlier. Protein might not have had enough time to coagulate nor starch to gelatinize to stabilize structure.
Term
How to correct for baking at high altitudes
Definition
decrease baking powder, increase liquid
Term
Most starches are composed of
Definition
amylose and amylopectin
Term
waxy starches
Definition
corn, rice, sorghum
Term
Waxy starches (corn, rice, sorghum)only have
Definition
amylopectin, NOT amylose
Term
starch with best thickening ability
Definition
potato
Term
starch with worst thickening ability
Definition
wheat
Term
Pastry and cake flour thicken better because they
Definition
have more starch and less gluten
Term
Gelatinization
Definition
swelling that occurs when starch is heated in water close to the boiling point
Term
What do sugar and flour compete for?
Definition
Water, which is needed for the flour to gelatinize
Term
If you have added excess water to dissolve excess sugar, what effect will this have on gelatinization of starch?
Definition
The excess water will not be available for gelatinization of starch.
Term
Fx of sugar in gelatinization
Definition
increases translucency, reduces viscosity and gel strength
Term
How does excess sugar affect gelatinization?
Definition
the consistency will be thin.
Term
What can you add to starch to break it down for a runnier pdt?
Definition
Acid
Term
Retrogradation occurs in starches with a high proportion of
Definition
AMYLOSE
Term
Retrogradation
Definition
H bonds in amylose holding the gel together break and reform in an orderly crystalline fashion, giving a gritty texture.
Term
Examples of retrogradation
Definition
separated gravy from the fridge overnight, stale bread
Term
Retrogradation is greatly accelerated by
Definition
freezing
Term
To help prevent retrogradation, prepare pdts that are to be frozen with what kind of starch?
Definition
Waxy (waxy corn, sorghum, rice)
(Modified corn starch)
Term
To prevent lumps when mixing starch in liquid:
Definition
mix the starch with fat, cold liquid, or sugar
Term
A roux, white sauce, is
Definition
half fat, half flour
Term
How to prepare a white sauce (roux)
Definition
melt fat, add flour, remove from heat, add liquid at 170-180F, add salt, add acid
use cornstarch as a thickener
Term
What is the cause of a starchy tasting grainy white sauce?
Definition
uncooked flour
Term
A souffle is an example of a
Definition
thick white sauce
Term
Preparation of crystalline candies
Definition
heat sugar and liquid to dissolve, heat further. Make small crystals for increased smoothness/creaminess
Term
What inhibits formation of crystals?
Definition
acids (cream of tartar, vinegar), fat (chocolate, milk), protein (milk, egg whites, gelatin)
Term
Main ingredients for candies
Definition
sugar, water, corn syrup or cream of tartar
Term
Candies start out with what qualities at the start of cooking?
Definition
viscous, shiny, smooth
Term
Candies end up with what qualities at the end of cooking?
Definition
creamy, dull, lighter in color
Term
Crystalline sugar candies with large crystals are
Definition
rock candy
Term
Crystalline sugar candies with small rystals are
Definition
fondant, fudge
Term
Non-crystalline sugar is
Definition
amorphous, glasslike
Term
Non-crystalline sugar candy examples
Definition
hard candy, brittles, caramel, gummy candy, chewy candy
Term
Non-crystalline sugar candy is made by prevent crystallization, which is done by
Definition
adding interfering substances (milk, chocolate, corn syrup)
Term
What is corn syrup's effect on crystallization?
Definition
It retards it, increasing viscosity and chewiness
Term
Overrun is
Definition
the increase in ice cream volume from freezing and whipping. Should be 70-80% by weight
Term
How does homogenization make ice cream smoother?
Definition
By making it easier to beat in air during freezing
Term
What is essential to keeping ice cream crystals small and to incorporating air?
Definition
Agitation
Term
What effect does not adding enough fat have on ice cream?
Definition
grainy, large crystals
Term
Increased fat in ice cream cause it to be more
Definition
smooth
Term
Why would you use a heavy cream instead of light cream in ice cream making?
Definition
For a smoother ice cream
Term
What is mellorine?
Definition
imitation ice cream. Butterfat is replaced by hydrogenated veg oil
Term
Nutritive value of gelatin?
Definition
It's just protein so 4kcals/g
Term
Gelatin is an incomplete protein. Why?
Definition
No tryptophan, low in methionine and lysine
Term
What is the foaming substance(agent) in marshmallows?
Definition
gelatin
Term
What effect does gelatin have on crystallization in candy and ice cream making?
Definition
It interferes
Term
What enzyme is in fresh or frozen pineapple that breaks down protein and prevents gelation?
Definition
bromelin
Term
gelation=
gelatinization=
Definition
gelation= gelatin
gelatinization= starch
Term
Brew coffee at _____F for best flavor.
Definition
185-203F
Term
Brewing coffee above 185-203F causes
Definition
tannins to be extracted = bitterness
Term
Percolator
Definition
single container. stronger, bitter flavor, hotter water repeatedly passed through grounds
Term
dripolator
Definition
3 separate compartments, add boiling water to top and let drip through, brief contact with grounds, free of bitterness
Term
vacuum brewed
Definition
higher temps than recommended
Term
What is in the National Nutrient Data Bank of the USDA?
Definition
Composition of food
Term
examples of emulsifiers
Definition
monoglycerides, diglycerides, lecithin, diNa phosphate
Term
humectant
Definition
retains moisture. glycerol monostearate
Term
glycerol monostearate
Definition
humectant
Term
stabilizers
Definition
carrageenan, pectin, cellulose, gelatin, vegetable proteins
Term
nitrites fx
Definition
fixes color, inhibits spores of clostridium botulinum
Term
What inhibits spores of clostridium botulinum?
Definition
nitrites
Term
proprionate
Definition
preservative/mold inhibitor
Term
ascorbic acid additive fx
Definition
enhances appearance by preventing browning
Term
fx foods
Definition
provide more benefits that the basic nutritional benefits
Term
grape juice and red wine have
Definition
resveratrol which reduces platelet aggregation
Term
What reduces platelet aggregation
Definition
resveratrol
Term
Omega 3 FA as a fx food
Definition
in fatty fish reduce TG levels
Term
tomatoes as a fx food have ___ which
Definition
lycopene, reduces prostate cancer risk
Term
Fermented dairy pdts have___ which support Gi health
Definition
probiotics
Term
Fortified margarines contain ____ and ____ which ______
Definition
Fortified margarines contain _plant sterols_ and _stanol esters_ which _reduce total and LDL chol_
Term
Medical foods example
Definition
PKU formulas free of phenylalanine
Term
Special dietary use foods example
Definition
gluten free, weight loss
Term
Phytochemicals
Definition
biologically active, naturally occurring, chemical compounds in plant foods; act as a natural defense for the plant
Term
What acts as a natural defense for the plant?
Definition
Phytochemicals
Term
Benefits of phytochemicals
Definition
prevention/tx chronic disease, detox from drugs/carcinogens
Term
What class of compounds may reduce CHD risk by preventing LDL from oxidizing, which reduces synthesis/absorption?
Definition
Phytochemicals
Term
Examples of phytochemicals
Definition
thiols, isoflavones, terpenes, carotenoids, lycopene, limonoids, phenols, flavonoids, phytoestrogens, indols, lignins
Term
Functional foods CONTAIN
Definition
phytochemicals
Term
Cruciferous vegetables contain what phytochemical?
Definition
thiol, detoxifys from carcinogens
Term
What Phytochemicals do soybeans contain?
Definition
isoflavones, which lower elevated chol
Term
Food synergy
Definition
the additive influence of food and constituents which, when eaten, have a beneficial effect on health.
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