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Galenical preparations

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Filtration of galenic preparations, alcohol-containing solutions and tinctures, preparations based on vegetable oils and syrups.


Galenic preparations (spirituous preparations based on vegetable raw materials, tinctures, extracts, syrups) are a fairly difficult to filter product and often require several stages of filtration. Particularly difficult to filter are tinctures of peony, calendula, hawthorn, eleutherococcus, which are characterized by a high concentration of colloids and require trial filtration, which determines the number of stages of filtration.



Process Requirements


When filtering tinctures, the medium to be filtered must be prepared (purified from large residues of plant material).


Prefilters should effectively brighten the product (remove particles and colloidal contaminants without sorbing useful substances).


Prefilters must provide a high flow rate and a stable high working life, it is good to regenerate, i.e. be cost effective.


Finishing filters should effectively remove residual misleading, ensure stability during long-term storage, provide high flow rates and service life.


Purposes of filtration




remove colloids, particles to extend the life of the final filters


Finishing filtration


Remove residual opalescence to ensure stability during long-term storage


Recommendations for filters Technofilter


Depending on the nature and volume of the flow, we recommend that for high-quality prefiltration, which meets the requirements of the process, use the  EPVg.p,EPVS, EPVS. Often, several prefiltration steps are required. Filter elements of these series are capable of providing high flow rates, excellent mechanical and thermal resistance, low resistance, high retention efficiency of microparticles, do not release fibers into the filtrate, repeatedly regenerated, manufactured according to ISO 9001: 2000.


For the final filtration, we recommend membrane filters of the brand  EPDM based on a high-performance asymmetric polyethersulfone membrane with a pore size of 0.65 and 0.45 microns. These membranes possess low sorption of proteins, are capable of providing high flow rates and a resource.


For sterilizing filtration of air, we recommend membrane filter elements made of  EPM.F4.


For the organization of the filtration process, we offer enclosure equipment - medical  filter holders of the DS series from high-quality stainless steel AISI 316L or AISI 304 (12Х18Н10Т) for different number and height of filter elements and filtration plants based on them.


For filtration of small volumes of preparations, as well as for the selection of optimal filtration schemes, capsule filters are produced on the basis of various  KPM and KFV.


For the final choice of the scheme for the filtration process of galenic preparations, please contact specialists of Technofilter.

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