Vitamin C Flashcards

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1
Q

Vitamin C is an ______ vitamin

A

essential; has to be obtain through the diet

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2
Q

How is vitamin C used: biological activity

A

+ Protein/Hormone Synthesis

+ Regeneration of AOX

+ Increases absorption of iron

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3
Q

How is vitamin C used: Food Industry

A

+ Prevent oxidation

+ Delay spoilage

+ Color retention

+ Acidic flavor

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4
Q

How is vitamin C used: Beauty Industry

A

“Anti-aging”

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5
Q

Biological Assays

A

+ Bioavailability Studies

+ Human/Animal Studies

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6
Q

Microbiological Assays

A

+ Measures quantity needed for growth

+ Time consuming

+ Measures: yeast, mold, bacteria

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7
Q

Extraction

A

+ Cold extraction

+ Reducing agents

+ Dilution

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8
Q

Conditions of Analysis

A

+ pH
+ Temperature
+ Clarity of Sample Color
+ Oxygen

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9
Q

Reagents

A

+ Boric acid sodium acetate

+ Acetic Acid

+ Beta mercaptoethanol

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10
Q

Methods of Detection (Vitamin C)

A

+ 2,6-Dichloriondophenol

+ 0-phenylene diamine

+ HPLC/UPLC

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11
Q

Type of Method: 2,6-Dichloriondophenol
(For what)

A

Titration Method

(Juices and vitamins)

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12
Q

Type of Method: 0-phenylene diamine
(For what)

A

Fluorescent Spectrometry

(Vitamin Supplements)

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13
Q

Type of Method: HPLC/UPLC (liquid chromatography)
(For what)

A

Separation Technique +Mass Spectrometry

(Infant formulas and nutritional drinks)

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