Sugars and Sweeteners (1/22) Flashcards

(56 cards)

1
Q

What are monosaccharides?

A

simple sugar with one basic unit

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2
Q

What are examples of monosaccharides?

A

glucose (dextrose), fructose, and galactose

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3
Q

What are disaccharides?

A

two monosaccharides linked together

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4
Q

What are examples of disaccharides?

A

sucrose, lactose, and maltose

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5
Q

What makes up sucrose?

A

glucose + fructose

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6
Q

What makes up lactose?

A

glucose + galactose

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7
Q

What makes up maltose?

A

glucose + glucose

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8
Q

T/F: glucose and dextrose are the same thing

A

true

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9
Q

What does sucrose and high fructose corn syrup provide?

A

energy

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10
Q

What does sugars promote?

A

tooth decay

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11
Q

Do sugars take up a little or a lot of space?

A

a lot of space

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12
Q

What does sugars hold onto?

A

water

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13
Q

What do sugars react to make?

A

caramelization and maillard browning

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14
Q

rank the sugars from sweetest to least sweet:

A

fructose, sucrose, glucose, galactose, maltose, lactose

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15
Q

What are examples of low calorie sweeteners?

A

saccharin (bitter), aspartame (bitter), ace-K (bitter), sucralose (lingers), neotame (rare in US), stevia and monkfruit (bitter)

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16
Q

What is the structure of aspartame?

A

two amino acids with a methyl group

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17
Q

T/F: aspartame is heat stable

A

false

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18
Q

What is typically added to low-calorie sweeteners?

A

bulking agents such as sugar alcohol, maltodextrin, and dextrose

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19
Q

What is maltodextrin?

A

starch chopped up into tiny pieces (not calorie free)

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20
Q

What is dextrose?

A

GLUCOSE

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21
Q

What effects do sugar alcohols have in the mouth?

A

a cooling effect

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22
Q

What may sugar alcohols be labeled?

A

sugar free and does not promote tooth decay

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23
Q

Sugar alcohols may not be labeled what?

A

reduced calorie food due to still containing a significant amount of calories

24
Q

What are examples of sugar alcohols?

A

erythritol, mannitol, isomalt, lactitol, maltitol, and xylitol, sorbitol

25
What is erythritol common in?
sweetener packets
26
What is isomalt useful for?
sugar art
27
What is xylitol common in?
sugar free candies
28
What is sorbitol common in?
sugar free candies and some beverages
29
What are examples of granular sugar?
table sugar, crystalline glucose/fructose/maltodextrins, and brown sugar
30
What is brown sugar?
sucrose with molasses added
31
What are examples of liquid sugar?
corn syrups, molasses, sorghum, maple syrup, honey
32
What sugars does high-fructose corn syrup have?
the same sugars as table sugar
33
What are the different properties of sugar?
solubility; melting point & decomposition by heat; absorption of moisture; fermentation; acid hydrolysis; enzyme hydrolysis; decomposition by alkalies; sweetness
34
What is the most soluble sugar?
fructose
35
What is the least soluble sugar?
lactose
36
What does unsaturated mean?
less than the max dissolved
37
What does saturated mean?
the max is dissolved
38
What does supersaturated mean?
over the max is dissolved
39
What happens to sugars with dry heat?
sugars melt
40
What happens to sugars with heat beyond melting?
decomposition changes resulting in caramelization
41
What happens when sugar absorbs moisture?
clumping
42
Which sugar absorbs the most moisture?
fructose
43
What does hygroscopic mean?
pulls water out of the air around it
44
What does hydroscopic mean?
a term for a thing used to view stuff underwater
45
What does hydrophilic mean?
water-loving/water soluble
46
What does sugars (except lactose) being fermented by yeast produce?
carbon dioxide gas and alcohol
47
What is fermentation important for?
bread making and beer and wine making
48
What does disaccharides "hydrolyzed" by weak acids produce?
monosaccharides
49
T/F: monosaccharides are not affected by acids
true
50
What is the end product of sucrose hydrolysis?
a liquid mixture of glucose and fructose
51
What is another term for the end product of sucrose hydrolysis?
invert sugar
52
What may be hydrolyzed by enzymes?
disaccharides
53
What is sucrase used for in the candy industry?
to produce soft, semifluid centers in chocolates
54
Where is lactase found?
in your gut as a child, may lose it with age
55
When is lactase used in food?
to make dairy tolerable to lactose-intolerant folks
56
T/F: if enzymes are present in food product they must be labeled if they are still active
true