CHAPTER 10: STARCH Flashcards

1
Q

biggest starch

A

potato

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2
Q

smallest starch

A

rice

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3
Q

fractions of starch molecules

A

amylose and amylopectin

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4
Q

starch is made up of ______

A

glucose units

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5
Q

series of steps that is dependent on water and heat resulting in a viscous and thickened starch products

A

gelatinization

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6
Q

more soluble in h2o; ability to thicken, gel, and retrogradate

A

amylose

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7
Q

branched; larger molecule; thickens more but does not gel; less soluble in h2o

A

amylopectin

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8
Q

t/f: cereal gelatnizes at lower temp than root starch

A

false, root starch gelatinizes at lower temp than cereal

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9
Q

t/f: agitation or stirring causes stronger gel

A

false, it causes weaker gel

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10
Q

t/f: acids delay gelatinization and results in softer gel

A

true

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11
Q

t/f: fats lower gelatinization temperature

A

true

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12
Q

t/f: milk and eggs decreases firmness of the gel

A

false, it increases

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13
Q

setting of sol into a solidified mass

A

gelation

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14
Q

process which causes drying and hardening of cooked starches

A

retrogradation

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15
Q

starch with higher _____ content readily gels

A

amylose

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16
Q

more _____, more thickening property

A

amylopectin

17
Q

t/f: sugar and acid decreases thickening

18
Q

as cooled gel ages, some water weeps from the network

19
Q

t/f: dextrin is water soluble

20
Q

proportion of starch and water: 1:1

A

thin sauce

21
Q

proportion of starch and water: 2:1

A

thick sauce

22
Q

proportion of starch and water: 3:1

A

tender delicate gel

23
Q

proportion of starch and water: 4:1

A

rigid, firm gel

24
Q

sauce and gravies, starch to water proportion?

25
gelatinization point
90 celcius
26
t/f: noodles and pasta made with rice, soft wheat, soy bean, cassava and other root crop do not hold their shapes well when cooked
true
27
egg noodles made from flour and duck's egg, salt, and soda
pancit canton
28
long, thin, round, translucent noodles made from mung bean and cassava starch
sotanghon
29
made from rice and corn flour, dough is extruded then boiled
bihon
30
flat yellowish noodles made from wheat flour, lye, and salt
miki
31
formed under alkaline conditions, usually in combination with either acetic anhydride or succinic anhydride
crosslinked starches
32
starch + na-tripolyphosphate or othe phosphates, reduce syneresis
esterified starched
33
____ has the least thickening ability
wheat
34
starches that are generally higher in _____ content forms a tender, opaque, cloudy gel
amylose
35
starches that are generally higher in _____ forms a firmer, clear gel or paste
amylopectin