Quiz 1 Flashcards

(72 cards)

1
Q

 Most abundant organic molecules in nature.
 First product formed in photosynthesis.
 Are aldehyde or ketone alcohols containing carbon, hydrogen and oxygen in which the hydrogen and oxygen are generally in the same ratio as in water.
 Emperical formula for simpler carbohydrates (CH2O)N hence the name Hydrate of Carbon.

A

Carbohydrates

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2
Q

FUNCTIONS
 Storage form of energy in the body.
 Serves as structural component of many
organisms.
 Ingredient in food and beverage industries.
 Excipients in pharmaceutical formulations.
 Pharmacologic effect.

A

Carbohydrates

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3
Q

Classification of Carbohydrates

A
  1. Saccharides (Sugars)
  2. Polysaccharides (non sugars)
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4
Q

– compounds that cannot be hydrolyzed to simple sugars.

A

Saccharides

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5
Q

What are the Saccharides?

A

 Monosaccharides
 Disaccharides
 Trisaccharides
 Tetrasaccharides
 Oligosaccharides

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6
Q

– are polymers of monosaccharides.

A

Polysaccharides

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7
Q

What are the Polysaccharides?

A

Starch, Inulin, Cellulose

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8
Q

 Chemically defined as substances belonging to the carbohydrates group that is ketonic or aldehydic substitution product of a polyhydroxy alcohol.
 These sugars contain from 3 to 9 carbon atoms, but those with 5 and 6 carbon atoms ( Pentoses C5H10O5, Hexoses C6H12O6)

A

Monosaccharides

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9
Q

– simplest does not occur free in nature.

A

 Dioses (hydroxyacetaldehyde)

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10
Q

– usually in the form of phosphate esters.

A

Trioses (Glyceraldehyde and Dihydroxyacetone)

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11
Q

– not found in the free state.

A

Tetroses

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12
Q

– occur commonly in nature, usually as products of hydrolysis of hemicellulose, gums and mucilages.

A

Pentoses

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13
Q

– most important monosaccharides found in plants, first detectable sugars synthesized by plants and forms units from which most polysaccharides are constructed.

A

Hexoses

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14
Q

Hexoses
______ possible aldohexose,
________ketohexoses ____isomers (alpha and beta forms)

2 occur in the free state:

A

16
8
48
- D-fructose (Levulose) and D-glucose (Dextrose)

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15
Q

found in sweet fruits, honey, and invert sugar.

A

D-fructose (Levulose) and D-glucose (Dextrose)

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16
Q

– important in the glucose metabolism of animals and in the photosynthesis processes of plants.

A

Heptoses

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17
Q

Classification of Monosaccharides

A
  1. Trioses – 3 Carbon atoms (Glyceraldehyde)
  2. Tetroses – 4 Carbon atoms (Erythrose)
  3. Pentoses – 5 Carbon atoms (Ribose)
  4. Hexoses – 6 Carbon atoms (Glucose)
  5. Heptoses – 7 Carbon atoms (Sedoheptulose)
  6. Nonoses – 8 Carbon atoms (Neuraminic acid)
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18
Q

Glyceraldehyde

A

Trioses

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19
Q

Erythrose

A

Tetroses

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20
Q

Ribose

A

Pentoses

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21
Q

Hexoses

A

Dextrose

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22
Q

Sedoheptulose

A

Heptoses

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23
Q

Neuraminic acid

A

Nonoses

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24
Q

DISACCHARIDES: 3 examples

A

Sucrose, Lactose, Maltose

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25
– Only disaccharide that occurs abundantly in free state in plants (fruit juices, sugar cane, sugar beet and sap of certain maples). It yield sugar – with epimolecular quantities of glucose and fructose.
Sucrose
26
– seldom occur in free state. Produced in large quantities by hydrolysis of starch during the germination of barley and other grains.
Maltose
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– milk sugar, hydrolyzed into glucose and galactose
Lactose
28
Pharmaceutically Important Sugars: 7 SGFCHXL
 Sucrose  Glucose/Dextrose  Fructose  Caramel (Burnt Sugar Coloring)  Honey  Lactose  Xylose
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Sucrose Common Name: Source: Scientific Name: • • Uses: Pharmaceutically necessity for syrups, demulcent, nutrients.
Sucrose Common Name: Sugar, Saccharum Source: Sugar Cane Scientific Name: • Saccharum officinarum • Beta vulgaris Uses: Pharmaceutically necessity for syrups, demulcent, nutrients.
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Sucrose Production:
Sugar Cane Sugar Beets
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• Crushing between iron rollers • Boiled with lime to neutralize plant acids. • Albumins will rise on top and removed. • Filtered and decolorized with sulfur dioxide. • Concentrate and crystallized.
Sugar Cane
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Beets are dug and washed. Sliced into small, limp silvers known as cosettes Sucrose is extracted with hot water.
Sugar Beets
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 D-glucose  Is usually obtained by the hydrolysis of starch Source: Grapes and other fruits Scientific Name: Family: Uses:  Nutrient, ingredient in various preparations  Dextrose injection  Alcohol and Dextrose injection  Dextrose and NaCl injection
dextrose  D-glucose  Is usually obtained by the hydrolysis of starch Source: Grapes and other fruits Scientific Name: Vitis vinifera – Family: Vitaceae Uses:  Nutrient, ingredient in various preparations  Dextrose injection  Alcohol and Dextrose injection  Dextrose and NaCl injection
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Examples of Dextrose
Dextrose excipient Dextrates Liquid glucose
35
– crystalline dextrose monohydrate that has undergone less rigorous purification.  Use: Pharmaceutic necessity
Dextrose excipient
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– purified mixture of saccharides (not less than 93% dextrose) prepared by controlled enzymatic hydrolysis of starch.  Use: Pharmaceutic necessity
Dextrates
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– product of incomplete hydrolysis of starch. • Colorless or yellowish, thick syrup liquid that is nearly odorless and taste sweet.  Uses: Manufacture of candy, carbonated beverages, ice cream, baking products and in canning industry.
Liquid Glucose
38
 Fruit Sugar  Obtained by the inversion of aqueous solutions of sucrose and the subsequent separation of fructose from glucose.  Occurs most in sweet fruits and in honey.  Colorless crystals or as white crystalline or granular.  Odorless powder that has a sweet taste.  Freely soluble in water. Uses: • As food for diabetic patient. • Contained in infant feeding formulas. • Ingredient of fructose injection and fructose, and sodium chloride injection.
Fructose
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 Crystallized from whey  Impure crystals are redissolved in water, decolorized with charcoal, and recrystallized. Uses: Tablet diluents Nutrient in infant’s food Establishes intestinal microflora
Lactose
40
Examples of Lactose
Lactulose Cow's milk Milk/dairy products
41
Semi-synthetic sugar prepared by alkaline rearrangement of lactose.  Yields lactose and galactose upon hydrolysis.  Use: Laxative
Lactulose
42
White, opaque liquid that is an emulsion of minute fat globules suspended in a solution of casein, albumin, lactose and inorganic salts.
Cow's Milk
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Milk/Dairy Products Examples
 Butter  Butter Milk  Skimmed Milk  Coagulum  Cheese  Whey
44
Formed when fat globules in milk unite.
Butter
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Liquid left after fat globules unite.
Butter milk
46
Milk left after separation of cream.
Skimmed Milk
47
Formed when skimmed milk is treated with renin.
Coagulum
48
Produced when coagulum is treated.
Cheese
49
Liquid separated from the coagulum.
Whey
50
 Wood Sugar A pentose obtained by boiling corn cobs, straw or similar materials with dilute acid to hydrolyze the xylan polymer.  Uses:  Diagnostic agent to evaluate intestinal absorption. o Cellac agent o Crohn’s disease o Pellagra o Radiation enteritis and surgical resection
Xylose
51
Are polymers of monosaccharides linked together through glycosidic linkages.  Glycan Nomenclature: Nature of monosaccharide building units and the position and configuration of the glycosidic bonds.
Polysaccharides
52
Classification of Polysaccharides: (4)
 Complex Polysaccharides  Homoglycans  Algal Gelling Agents  Gums and Mucilages
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 Usually hydrolyzed to a component Hexose and are therefore called Hexosans, represented by: Cellulose, Inulin and Starch
Complex Polysaccharides
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which yields glucose (glycosan/glucan)
Starch
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which yields fructose
Inulin
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forms the primary cell wall in plants
Cellulose
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forms the primary cell walls in plants
Cellulose
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-high molecular weight polysaccharides but are considerably more soluble and more easily hydrolyzed.  Gums, Mucilages, Pectin
Hemicelluloses
59
Complex Polysaccharides
Complex Polysaccharides  Cellulose  Inulin  Starch  Hetastarch  Dextran  Powdered Cellulose  Purified Cotton
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 Natural plant hydrocolloids that may be classified as anionic or nonionic polysaccharides or salts of polysaccharides. Exudate gums, seed gums, marine gums, microbial gums.
Gums and Mucilages
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– Dispersion of gum in water.  Uses:  Pharmaceutical necessity.  Ingredients in dental and other adhesives and bulk laxatives.
Mucilage
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Examples of Gums and Mucilages
 Tragacanth  Agar  Carrageenan  Acacia gum  Ghatti Gum  Guar Gum  Karaya Gum (Sterculia Gum)  Xanthan Gum  Locust Bean Gum  Psyllium (Flea seed)  Plantago Seed  Marshmallow leaf  Marshmallow root  Mullien flower  Couch grass rhizome
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Algal Gelling Agents (2)
Agar Alginic Acid
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Miscellaneous
 Honey  Figs  Fucus  Cetraria – Iceland moss
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 General term for group of polysaccharides present in the primary cell wall of all seed-bearing plants acts as an intercellular cementing material together with cellulose and hemicellulose.
Pectin
66
Products of Pectin
 Pharmaceutic Pectin – pure pectin  Commercial pectin o Contains sugar of organic acids o Obtained as a by-product of the citrus canning industry.
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Sugar Containing drugs FMPSTT
Fig ( dried fruits) Manna ( dried saccharine extracts) Prunes (Dried ripe fruits) Sugar cane (Sugar) Tamarind ( Ripe fruits) Triticum (Dried roots and Rhizomes)
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Starch Containing drugs A UAE, C, EAO, UWA, WRN
Arrowroot ( tubers) Banana (Fruits) Bean ( Legumes Buli (young plants- fruits) Cassava (freshly roots) Pea ( fruits- legumes) Plantain (seeds) Potato Sago (fruits) Sugar Palm (fruits) Sweet potato (freshly roots) Wheat (grains and rhizomes) Rice ( grains, rhizomes, roots) Nipa (leaves)
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Cellulose Containing drugs
Cotton (hairs)
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Mucilages containing drugs
Cetraria (dried plant) Agar (dried plant) Chondrus (dried plant) Elm (dried barks)
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OTHER MALVACEAE CONTAINING MUCILAGES DRUGS
Moonflower ( flowers- tops-leaves) Althea (dried roots) Gumamela ( flowers- leaves- barks- roots)
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GUMS CONTAINING DRUGS
Tragacanth (dried gummy exudates) Acacia (dried gummy exudates) Gelatin ( transparent nutrigenous animal substance)