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2) Food Chemistry I > Lipids Images > Flashcards

Lipids Images Flashcards

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1
Q

What is this image?

A

Cholesteryl ester (wax)

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2
Q

What is this image?

A

Vitamin A ester (wax)

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3
Q

In phospholipids, what would the structure be called in this case?

A

Phosphatidic acid

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4
Q

In phospholipids, what would the structure be called in this case?

A

Phosphatidylethanolamine

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5
Q

In phospholipids, what would the structure be called in this case?

A

Phosphatidylcholine

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6
Q

In phospholipids, what would the structure be called in this case?

A

Phosphatidylserine

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7
Q

In phospholipids, what would the structure be called in this case?

A

Phosphatidylinositol

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8
Q

What is this image? What is its polar chemical structure called?

A
  • Lecithin
  • Choline
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9
Q

What is this image? What is its polar chemical structure called?

A
  • Cephalin
  • Ethanolamine
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10
Q

Fill in the 3 blanks.

A
  • Phosphatidyl ethanolamine
  • Phosphatidyl choline
  • Phosphatidyl inositol
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11
Q

What is this image?

A

Cholesterol

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12
Q

What is this image?

A

Fundamental isoprene unit

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13
Q

What do these images represent?

A

Monoterpenes

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14
Q
A

Sesquiterpene

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15
Q

What does the star represent?

A
  • An active methylene group
  • Positioned between a conjugated and unconjugated double bond
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16
Q

What does this image represent?

A

Branched chain fatty acid (ex: Malvalic acid)

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17
Q

What does this image represent?

A
  • Hydroxy acid
  • 12-hydroxy-9-cis-octadecenoic acid
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18
Q

What does this image represent? What is its main use?

A
  • Acetylenic fatty acids (triple bond)
  • Antifungals
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19
Q

What kind of fatty acids do these oils represent?

A

Omega-6

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20
Q

What kind of fatty acids do these oils represent?

A

Omega-9

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21
Q

What kind of fatty acids do these oils represent?

A

Omega-3

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22
Q

What is this image? What is its abbreviation?

A
  • Erucic acid
  • C22:1 (13c)
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23
Q

Fill in the 4 blanks.

A
  • Rapeseed
  • Canola
  • Olive
  • Soy
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24
Q

What is this image?

A

An expeller

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25
Q

What kind of crystal does this image represent?

A

Beta-Prime

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26
Q

What kind of crystal does this image represent?

A

Beta

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27
Q

Which image has the lowest melting point? Which has the highest melting point?

A
  • Lowest MP: right - middle since the kink separates the linear fatty acids
  • Highest MP: left - bottom since it can flip over and still pack well
28
Q

Which crystal structure is this?

A

Beta

29
Q

Which crystal structure is this?

A

Beta-Prime

30
Q

Which crystal structure is this?

A

Alpha

31
Q

Which crystal structure is this?

A
  • Hexagonal
  • Alpha
32
Q

Which crystal structure is this?

A
  • Orthorhombic
  • Beta-Prime
33
Q

Which crystal structure is this?

A
  • Triclinic
  • Beta
34
Q

Which crystal structure is this?

A
  • Beta
  • Stacked Chair
35
Q

Which crystal structure is this?

A
  • Beta-Prime
  • Tilted tuning fork
36
Q

Which crystal structure is this?

A
  • Alpha
  • Vertical Tuning Fork
37
Q

Fill in the 2 blanks.

A
  • Simple (Collapse)
  • Cataclysmic (Chain Shift)
38
Q

What are the crystal preferences of these oils?

A

Beta

39
Q

What are the crystal preferences of these oils?

A

Beta-Prime

40
Q

What can you produce stimulated cocoa butter from?

A

Hydrogenated cottonseed oil

41
Q

What is the equation for the saponification value? What are the units?

A
  • mg of KOH/1 gram of fat
42
Q

What happens if the crystal used as enrobing fats in chocolate are in the beta form?

A
  • Chocolate “bloom” – white spots and dull surface appearance
  • They should be in the Beta-Prime form
43
Q

What does this image represent?

A

Malonaldehyde

44
Q

What do the electrons of triplet oxygen ressemble?

A
45
Q

What do the electrons of singlet oxygen ressemble?

A
46
Q

What is this antioxidant?

A

BHA

47
Q

What is this antioxidant?

A

TBHQ

48
Q

What is this antioxidant?

A

BHT

49
Q

What is this antioxidant

A

PG

50
Q

What is this antioxidant?

A

AP

51
Q

What is this antioxidant?

A

Vitamin E (tocopherol)

52
Q

What is this antioxidant?

A

Gossypol found in cottonseed oil

53
Q

What does this image represent?

A

Glutathione

54
Q

Does the arrow go up or down? What does that mean?

A
  • The arrow points up
  • The greater the reduction potential in mV the greater the species affinity for electrons and hence the greater its tendency to be reduced
55
Q

What is this antioxidant?

A

BHA

56
Q

What is this antioxidant?

A

BHT

57
Q

What is this antioxidant?

A

PG (Propyl Gallate)

58
Q

What is this antioxidant?

A

TBHQ

59
Q

What is this antioxidant?

A

Gossypol

60
Q

What is this antioxidant?

A

Sesamol

61
Q

What is this antioxidant?

A

NDGA

62
Q

What test does this mechanism correspond to?

A

Peroxide Value

63
Q

What test does this mechanism correspond to?

A

Benzidine Test

64
Q

What test does this mechanism correspond to?

A

TBA Test

65
Q

What is this image?

A

Phosphatidylcholine

66
Q

What is this image?

A

Lysophosphatidylcholine

67
Q

What is this image?

A

Sphingomyelin

2) Food Chemistry I (31 decks)

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