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WorksheetsCT Preparations Natural Raw Materials p.4
Total questions: 25
Worksheet time: 50mins
Convective drying is
drying, carried out using a heat carrier gas
drying, carried out by transferring heat through a heated surface
drying, carried out by freezing the material under vacuum
drying with desiccants
Neogalenical preparation produced from raw material "Folia Рlantaginis majoris" is:
Plantaglucid (Plantaglucidum)
Ergotal (Ergotalum)
Flamin (Flaminum)
Avisan (Avisanum)
The method for juices production from fresh plants is:
maceration with ethanol followed by pressing
percolation
circulating extraction
bismaceration
Medicinal plant raw material for preparation of individual substance Digoxin is:
Folia Digitalis lanatae
Herba Adonidis vernalis
Folia Convallariae
Flores Helichrysi arenarii
When carrying out continuous countercurrent extraction with simultaneous movement of raw materials and extractant, the following apparatus is not used:
percolator
spring-blade extractor
disc extractor
screw extractor
The reason for the decrease in the total volume when mixing ethyl alcohol and water is
contraction
sedimentation
phase separation
emulsification
Drying is:
an operation of mass and heat transfer, in which moisture is removed from the wet material
the process of increasing the concentration of solutions of non-volatile substances by partial removal of the liquid solvent during boiling
the process of increasing the concentration of a solution of non-volatile substances by completely removing the solvent
the process of filtering extracts
The ratio between the mass of the raw materials, the mass of the final product, mass of by-products, mass of waste products and the mass of material losses is
material (mass) balance
alcohol absorption coefficient
heat balance
unit consumption
The quoted formula: G1 = (G2 + G3 + G4) + G5 is:
the material balance equation
the formula for calculating technological expenditure
the formula for calculating the material consumption coefficient
the formula for calculating the process yield
To calculate which technological characteristic is the following formula used?
η = G2 / (G1-G3-G4) ∙ 100%
process yield
technological expenditure
coefficient of material consumption
unit consumption
To calculate which technological characteristic is the following formula used?
ε = G5/(G1-G3-G4) ∙ 100%
technological expenditure
process yield
coefficient of material consumption
unit consumption
To calculate which technological characteristic is the following formula used?
Cmc= (G1-G3-G4)/G2
coefficient of material consumption
process yield
technological expenditure
unit consumption
To convert the volumetric concentration of ethyl alcohol to mass concentration, the following should be used:
alcoholometric tables
table of drops
alcohol absorption coefficient
volume increase factor
Heat transfer by conduction can be described by:
Fourier formula
Newton's law
Stefan - Boltzmann formula
Dalton's law
Heat transfer by convection can be described by:
Newton's law
Stefan - Boltzmann formula
Fourier formula
Dalton's law
Heat transfer by radiation can be described by:
Stefan - Boltzmann formula
Newton's law
Fourier formula
Dalton's law
When using a high-viscosity extractant, it is advisable to
heat the extractant
cool the extractant
evaporate the extractant
divide the extractant into fractions
A diffusion of solvent molecules through a porous septum separating the solution and solvent until the concentrations of extractable substances are equalized on both sides of the septum is
osmosis
dialysis
fluidization
brownian motion
A diffusion of low molecular weight substances through a semipermeable porous septum until concentrations on both sides of the septum are equalized is
dialysis
osmosis
fluidization
brownian motion
Choose the correct statement regarding the extraction process of dry plant material:
The process of diffusion proceeds through the macropores of the cells
Diffusion proceeds through the micropores of the cell walls
Dialysis and osmosis proceed through the macropores of the cells
There is no correct answer among the given variants
What period is not present in the technology of liquid extracts by countercurrent extraction in a battery of percolators?
intermediate
working (main)
starting (loading) or launching
stopping
Precipitation of high molecular weight extractives from the dissolved state under the influence of strong electrolytes is
salting out
electrodialysis
chromatographic fractionation
isoelectric precipitation
Purification methods in the technology of highly purified drugs do not include
settling
isoelectric precipitation
salting out
changing the solvent
Dried plant preparations include
species
tinctures
fluid extracts
thick (viscous) extracts
The stage of fine purification is not typical for technology of
Valerian tincture
Adenoside (Adenosidum)
Silibor (Siliborum)
Corglycon
