EXTRACTIVE AND CRUDE FIBER CONTENT Flashcards
Is the WITHDRAWAL OF DESIRED CONSTITUENTS from crude drugs through the use of selected solvents in which the desired constituents are soluble.
EXTRACTIVE
Are VEGETABLE OR ANIMAL DRUGS that have undergone no other processes than collection, cleaning and drying.
CRUDE DRUGS
used in the manufacture of some pharmaceutical preparations
Semi-liquids or liquids of syrupy consistency
used in pill, ointment and suppositories
Plastic masses known as pilular or solid extracts
PLASTIC MASSES are known as
PILULAR / SOLID EXTRACTS
suited for incorporation into a POWDERED FORMULATION as in capsules, powders or tablets
Dry powders or Powdered extracts
A process in which the comminuted drugs is permitted to SOAK IN THE MENSTRUUM until the cellular structures is softened and penetrated by the menstruum and the soluble constituents are dissolved.
MACERATION
Is a process in which comminuted drug is extracted of its soluble constituents of the SLOW PASSAGE of a suitable solvent through a column of the drug. The drug is packed in extraction apparatus – the percolator with the extractive collected called the percolate.
PERCOLATION
This is a form of maceration in which GENTLE HEAT is used during the process.
DIGESTION
are prepared by MACERATING THE DRUGS for a SHORT PERIOD OF TIME with either cold or boiling water
FRESH INFUSION
an infusion is made with ½ - 1 oz dried herb to 2 pints of water, BREWED FOR SEVERAL HOURS OR OVERNIGHT
HERBAL INFUSION
This once popular process extracts water soluble and heat stable constituents from crude drugs by BOILING in water for 15 minutes, COOLING, STRAINING, and PASSING sufficient cold water through the drug to produce the required volume
DECOCTION
are found to be MOST EFFECTIVE and have MINIMAL SIDE EFFECTS.
DECOCTIONS
It is prepared from fresh herbs and is CONSUMED IMMEDIATELY after preparation and therefore there is no risk of adulteration, getting stale or degradation and untoward reaction.
DECOCTION
max ng timbol
25g
ADVANTAGES:
- w/o filtration
- can become the solvent after extraction
DISADVANTAGES:
- use small amount of sample
- expensive apparatus
CONTINUOUS DISTILLATION / SOXHLET EXTRACTION
ADVANTAGES:
- big amount of sample
- cheaper apparatus
DISADVANTAGES:
- w/ filtration
REFLUX DISTILLATION
solven is also known as
menstruum
solvent:
mabilis mag evaporate (maceration)
ETHER
a good solvent for RESINOUS matter & ALKALOIDS
ALCOHOL
Is the residue, consisting chiefly of CELLULOSE, that REMAINS UNDISSOLVED after successive treatment with boiling acids and alkali.
CRUDE FIBER
The method of analysis of fatty substances, waxes, resin, etc., usually consist of the determination of a NUMBER OF PHYSICAL & CHEMICAL PROPERTIES or values known as _______
CONSTANT
Acid Value also known as
ACID NUMBER
ACIDITY INDEX
defined as the number of milligrams of KOH necessary to neutralize the FREE ACIDS in 1 g of oil, fat, wax, resin, balsam, and similar substances.
ACID VALUE / ACID NUMBER / ACIDITY INDEX
Saponification Value or Saponification Number is also known as
KOETTSDORFER NUMBER
defined as the number of milligrams of KOH required to NEUTRALIZE THE FREE ACIDS & SAPONIFY THE ESTERS contained in 1 g of fat, fatty or volatile oil, wax, resin, balsam, and similar substances.
SAPONIFICATION VALUE
Is defined as the number of milligrams of KOH required to SAPONIFY THE ESTERS in 1 g of a fatty or volatile oil, fats, wax, balsam, resin.
ESTER VALUE / ESTER NUMBER
may also be calculated in the same manner as the Saponification value
ESTER NUMBER
defined as the substances PRESENT IN OILS & FATS that are NOT SAPONIFIED by alkali hydroxides but are soluble in ordinary fat solvents
UNSAPONIFIABLE MATTER
When oil and fats are saponified, there remains a small amount of residue that may consist of _____ in VEGETABLE oils and ______ in ANIMALS
PHYTOSTEROL - plants
CHOLESTEROL - animals
Is the number of grams of IODINE absorbed under specified conditions by 100 g of oil, fat, wax, or other substances.
IODINE VALUE / IODINE NUMBER
This value is a quantitative measure of the PROPORTION OF UNSATURATED FATTY ACIDS PRESENT, both free and uncombined as esters, that have the property of absorbing iodine
IODINE VALUE / IODINE NUMBER