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

A

true

18
Q

as cooled gel ages, some water weeps from the network

A

synerisis

19
Q

t/f: dextrin is water soluble

A

true

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?

A

3:1

25
Q

gelatinization point

A

90 celcius

26
Q

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

A

true

27
Q

egg noodles made from flour and duck’s egg, salt, and soda

A

pancit canton

28
Q

long, thin, round, translucent noodles made from mung bean and cassava starch

A

sotanghon

29
Q

made from rice and corn flour, dough is extruded then boiled

A

bihon

30
Q

flat yellowish noodles made from wheat flour, lye, and salt

A

miki

31
Q

formed under alkaline conditions, usually in combination with either acetic anhydride or succinic anhydride

A

crosslinked starches

32
Q

starch + na-tripolyphosphate or othe phosphates, reduce syneresis

A

esterified starched

33
Q

____ has the least thickening ability

A

wheat

34
Q

starches that are generally higher in _____ content forms a tender, opaque, cloudy gel

A

amylose

35
Q

starches that are generally higher in _____ forms a firmer, clear gel or paste

A

amylopectin