Lipids Images Flashcards by Sophie Lamontagne

Q

What is this image?

A

Cholesteryl ester (wax)

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Q

What is this image?

A

Vitamin A ester (wax)

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Q

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

A

Phosphatidic acid

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Q

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

A

Phosphatidylethanolamine

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Q

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

A

Phosphatidylcholine

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Q

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

A

Phosphatidylserine

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Q

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

A

Phosphatidylinositol

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Q

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

A

Lecithin
Choline

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Q

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

A

Cephalin
Ethanolamine

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Q

Fill in the 3 blanks.

A

Phosphatidyl ethanolamine
Phosphatidyl choline
Phosphatidyl inositol

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Q

What is this image?

A

Cholesterol

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Q

What is this image?

A

Fundamental isoprene unit

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Q

What do these images represent?

A

Monoterpenes

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Q

A

Sesquiterpene

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Q

What does the star represent?

A

An active methylene group
Positioned between a conjugated and unconjugated double bond

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Q

What does this image represent?

A

Branched chain fatty acid (ex: Malvalic acid)

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Q

What does this image represent?

A

Hydroxy acid
12-hydroxy-9-cis-octadecenoic acid

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Q

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

A

Acetylenic fatty acids (triple bond)
Antifungals

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Q

What kind of fatty acids do these oils represent?

A

Omega-6

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Q

What kind of fatty acids do these oils represent?

A

Omega-9

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Q

What kind of fatty acids do these oils represent?

A

Omega-3

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Q

What is this image? What is its abbreviation?

A

Erucic acid
C22:1 (13c)

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Q

Fill in the 4 blanks.

A

Rapeseed
Canola
Olive
Soy

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Q

What is this image?

A

An expeller

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What kind of crystal does this image represent?

Beta-Prime

What kind of crystal does this image represent?

Beta

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

* 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

Which crystal structure is this?

Beta

Which crystal structure is this?

Beta-Prime

Which crystal structure is this?

Alpha

Which crystal structure is this?

* Hexagonal * Alpha

Which crystal structure is this?

* Orthorhombic * Beta-Prime

Which crystal structure is this?

* Triclinic * Beta

Which crystal structure is this?

* Beta * Stacked Chair

Which crystal structure is this?

* Beta-Prime * Tilted tuning fork

Which crystal structure is this?

* Alpha * Vertical Tuning Fork

Fill in the 2 blanks.

* Simple (Collapse) * Cataclysmic (Chain Shift)

What are the crystal preferences of these oils?

Beta

What are the crystal preferences of these oils?

Beta-Prime

What can you produce stimulated cocoa butter from?

Hydrogenated cottonseed oil

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

* mg of KOH/1 gram of fat

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

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

What does this image represent?

Malonaldehyde

What do the electrons of triplet oxygen ressemble?

What do the electrons of singlet oxygen ressemble?

What is this antioxidant?

BHA

What is this antioxidant?

TBHQ

What is this antioxidant?

BHT

What is this antioxidant

PG

What is this antioxidant?

AP

What is this antioxidant?

Vitamin E (tocopherol)

What is this antioxidant?

Gossypol found in cottonseed oil

What does this image represent?

Glutathione

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

* 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

What is this antioxidant?

BHA

What is this antioxidant?

BHT

What is this antioxidant?

PG (Propyl Gallate)

What is this antioxidant?

TBHQ

What is this antioxidant?

Gossypol

What is this antioxidant?

Sesamol

What is this antioxidant?

NDGA

What test does this mechanism correspond to?

Peroxide Value

What test does this mechanism correspond to?

Benzidine Test

What test does this mechanism correspond to?

TBA Test

What is this image?

Phosphatidylcholine

What is this image?

Lysophosphatidylcholine

What is this image?

Sphingomyelin