SWEET 2 Flashcards

(41 cards)

1
Q

why is less HFCS needed than sucrose

A

because Fructose is sweeter than sucroses(and cheaper!)

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2
Q

how much of HFCS is fructose

A

50%

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3
Q

what do enzymes in bees convert sucrose to

A

glucose + fructose

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4
Q

how can honey be collected

A

by centrifugation or by
crushing the combs and straining

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5
Q

what can extracted heated honey do

A

destroy microorganisms

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6
Q

what about honey keeps water activity low and prevents microbial growth

A

Naturally high sugar content

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7
Q

whats molasses

A
  • Highly concentrated sucrose syrup produced from boiling down sugar cane or beet juice
  • Contains no more than 75% water
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8
Q

what is molasses fermented to create

A

rum

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9
Q

when is maple syrup collected

A

late winter/early spring from locations
having relatively warm temps during the day and cold
temps at night

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10
Q

whats the difference between light / fancy syrup and dark / commercial syrup

A
  • Fancy has more delicate flavor
  • Commercial has more pronounced flavor
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11
Q

how is invert sugar syrup made

A

Made by hydrolyzing sucrose into glucose and fructose

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12
Q

why does invert sugar syrup stay moist

A

because its very hhygroscopic

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13
Q

what does invert sugar syrup cause

A

rapid crust coloration

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14
Q

what happens to sucrose during invert sugar syrup production

A

dissolved in water and treated with heat and either acid or enzymes

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15
Q

what are sugar alcohols

A

Alcohol counterparts of specific carbs
that are found naturally in fruits and veggies and can also be synthesized

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16
Q

how sweet are sugar alochols

A

40-100% as sweet as sucrose

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17
Q

why do sugar alcohols contribute fewer calories

A

because resistant to digestion

18
Q

what are foods labelled as when they contain sugar alcohols

A

labelled “sugar-free”
(but not “calorie-free”)

19
Q

sugar alcohol functions as hummectants. what does this mean

A

substances that attract water
and help retain moisture

20
Q

whats a drawback of sugar alcohols

A

slow digestion/absorption can cause GI
distress

21
Q

what are nonnutritive sweeteners

A

sweeteners that are sweeter than sucrose (30-70x as sweet) and provide minimal to no energy (low or zero Calorie)

22
Q

what are nonnutritive sweeteners common in

A

diet soft drinks, sugar-free gum, and as
tabletop sweeteners

23
Q

how many nonnutritive sweeteners have been approved by FDA

24
Q

whats saccharin

A

nonnutritive sweetener thats Commonly known as Sweet’N Low and is 200-700x sweeter than sucrose

25
what are two major drawbacks os saccharin
bitter aftertaste; used to have a warning label bc of 1970s study with bladder cancer in rats but removed in 2000
26
whats aspartame
Nutrasweet or Equal 180x sweeter than sucrose Provides 4 kcal/g energy but so little of the sweetener is used that the Calorie contribution is negligible
27
who shouldn't consume aspartame
PKU
28
how is aspartame created
* Synthetic combination of two amino acids: * Aspartic acid and phenylalanine
29
whats sterol glycosides
* Commonly known as Truvia or Pure Via * Extracted from leaves of stevia plant
30
whats revaudioside A
common sterol glycoside thats 200x sweeter than sugar
31
whats neotame
7000-13,000x sweeter than sucrose * Like aspartame made from phenylalanine and aspartate but not significantly risk to people with phenylalanine
32
whats monk fruit
Native to Southern China * First cultivated by Buddhist monks * Fruit’s extract contains mogrosides: 150-300x sweeter than sucrose
33
whats advantame
* Approved as sweetener in 2014 * 20,000x sweeter than sucrose! * Heat stable
34
what are the functions of sugars in foods
solubility, crystallization, caramelization, moisture abosporton, fermentation and preservation
35
what are the most and least soluble sugars
Fructose is most soluble, lactose is least soluble
36
how is solubility noticeable
influences perceived mouthfeel and texture of food/beverage
37
whats caramelization
dry [or almost dry] sugar first melts into a clear, viscous liquid and then turns brown as it is heated
38
what kind of chem rxn happens in caramelization
Thermochemical decomposition
39
what kind of flavor does caramelization result in
less sweet but more flavorful
40
how does preservation work
(i) Water activity is lowered * (ii) Osmotic pressure dehydrates microorganisms
41
what foods are most moist
* Foods made with high-fructose syrups (HFCS, honey, molasses) are notably more moist