Organic Chem Flashcards
solvent used in the process of extraction
which is selective in its action
Menstruum
chief constituent of the drug
Derivatives/extractives
undissolved portion of the drug that remains
after the extraction process
Marc
knowledge of drugs or pharmaceuticals
Pharmacognosy
Father of Modern Plant Chemistry
Carl Wilhelm Scheele
are vegetable/animal drugs that consist of natural
substances that have undergone only the processes of
collection & drying
Crude drugs
study of the composition of plant principles with their
extraction, biosynthesis and identification
Phytochemistry
obtained from drugs
of biologic origin or prepared synthetically or semi
synthetically
Drug Constituents
antigenic matter or antibody
preparations capable of developing a state of immunity in
the patients
Biologics
Galen
Greek pharmacist-physician described the method
of preparing formulas containing plant & animal
drugs (galenical preparations)
Wrote “De Materia Medica”
Pedanios Dioscorides
first to introduce the word pharmacognosy in
his title “Lehrbuch der Materia Medica”
J.A. Schmidt
first to coined the word Pharmacognosy in his
work “Analectica Pharmacognostica
C.A. Seydler
A collection of hymns predating 1000 B.C.
Vedas of India
Paper scroll
Egyptian Papyrus Ebers
Chinese drug encyclopedia
Pen-ts’ao kang mu
Abundant in plants but lower in value
Primary Metabolites
modified drying process that converts inert
constituents to its active form
Curing
Cause precipitation/other chemical changes in a
medicinal preparation
Pharmaceutically Active
final step in the preparation of crude drugs
Garbling
essential to the study of adulterants in powdered
drugs & in the identification of powdered drugs
Microscopic
Unique to a particular specie, usually possessing
therapeutic value
Secondary Metabolites
refers to the intrinsic value of the drug; amount of
medicinal/active principles/constituents present
Quality
includes macroscopic appearance, odor & taste,
sound of snap of fracture, & the feel of the drug
Organoleptic
application to crude drugs is rare but extensively
applied to active principles of drugs
Physical test
applied to the evaluation and
standardization of drug
Pharmacologic/Biologic Assay/Bioassay
UV-VIS Spectroscopy - plant pigments
Instrumental
best method of determining
the official potency of drugs
- Example: color reaction tests
Chemical Assay
Responsible for the therapeutic activity of the drug
Pharmacologically Active
Responsible for the therapeutic effect
Active Constituents
Study of the biochemical pathway leading to the formation
of secondary constituents used as drugs
Biogenesis
Do not exert any therapeutic effect/have no
definite pharmacologic activity
Inert Constituents
Identity of the constituents vary according to the
stage of development of the plant
Ontogeny
can be hydrolyzed into two saccharide units
Disaccharides
glucose, fructose
Sucrose
glucose, glucose
Maltose
Lactose
glucose, galactose
Cellobiose
glucose, glucose
glucose, glucose,
fructose
Gentianose
glucose, glucose
Trehalose
Sophorose
glucose, glucose
glucose, xylose
Primeverose
Raffinose
galactose, glucose,
fructose
saccharum
Sucrose
Scillatriose
rhamnose, glucose,
glucose
Planteose
glucose, fructose,
galactose
Manneotriose
galactose,
galactose, glucose
Containing 2 - 10 saccharide units
Oligosaccharides
Also known as glycan
Polysaccharides
In the production of sugar from sugarcane:
is to neutralize the plant acids
In the production of sugar from sugarcane:
to decolorize the juice
In the production of sugar from sugarcane:
(residual dark colored syrup obtained
from sucrose production)
Prepared by controlled enzymatic isomerization of
glucose
Fructose
In the production of sugar from sugarcane:
(limp slivers from sliced sugar beets)
Fruit sugar
Fructose
liquid left after separation of cream
Skimmed milk
Occurs naturally in grapes & other fruits
Controlled enzymatic hydrolysis of starch
Dextrose
fat globules that rise to the top
Cream
liquid left when butter is removed
Buttermilk
fat globules that unite when milk is churned
Butter
liquid separated from the coagulum -
contains lactose and inorganic salts
Whey
evaporation of milk in a vacuum
& sterilization by autoclaving
Condensed milk
formed when skimmed milk is treated
with rennin
Coagulum
fermented milk
Kumyss
obtained after proper treatment of the
coagulum
Cheese
evaporating milk with extract of malt
Malted milk
Therapeutic use is to decrease blood ammonia
concentration in portal-systemic encephalopathy
Lactulose
Wood sugar - diagnostic agent to evaluate intestinal
absorption
Xylose
Succus cerasi - Prunus cerasus (Rosaceae)
Contains 1% malic acid
Cherry Juice
- Dicarboxylic acid
- By-product of the wine industry
- Used in:
o buffer system
o effervescent formulations
Tartaric acid
- Tricarboxylic acid
- Lemon juice (Scheele)
- Commercially from limes, lemons &
pineapples - Used as acidulant, systemic alkalinizer in
buffer system )
Citric acid
fermented grape juice
Wine
- By lactic fermentation of sugars
- Used as:
o acidulant in infant feeding formulas
o treatment of metabolic acidosis
Lactic acid
from wine
Brandy
fermented grain
Beer
Triticum aestivum
wheat
Zea mays (Poaceae)
corn
a hexitol from ripe berries of mountain ash
of Sorbus aucuparia (Rosaceae)
Sorbitol
Sources of Commercially Useful Gums
dextran, xanthan
Microbial Gums
from fermented malted grain
Whiskey
from fermented molasses
Rum
Solanum tuberosum
potato
isolation from manna (dried saccharine
exudate of Fraxinus ornus (Oleaceae)
Mannitol
Mixture of two structurally different polysaccharides:
a) amylose
b) amylopectin
Starch
D-fructofuranose polymer
Inulin
Citrus grandis
Pomelo
- reaction of cellulose with caustic soda
and methyl chloride - bulk laxative, suspending agent, topical
protectant (artificial tears)
Methylcellulose
Most abundant organic compound in nature
Cellulose
Cellulose occurs as very fine threads called
microfibrils
Sources of Commercially Useful Gums
hetastarch, CMC, hydroxypropyl
methylcellulose, methylcellulose, ethyl
cellulose, oxidized cellulose
Starch & Cellulose Derivatives