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5 International Scientific Online Conference   DOI: https://doi.org/10.15414/2021.9788055224015

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                  INVESTIGATION OF POLYPHENOL EXTRACT СOMPOSITION OF GREAT BURNET
                 (SANGUISORBA OFFICINALIS L.) FROM THE CARPATHIAN RESERVE FOR CREATION
                                               PHYTOPOLYMER COATING

                    Anastasiia Mysholov, Olena Konovalova, Irina Hurtovenko, Oleg Gudzenko,
                                                   Nataliia Hudzenko
              Private Higher Educational Establishment "Kyiv Medical University", Department of Pharmaceutical
                                         and Biological Chemistry, Pharmacognosy;
                                     Kyiv, Ukraine; E-mail.: a.mysholov.st@kmu.edu.ua

                  Nowadays  the  development  of  medicinal  phytopolymer  coatings  of  "phytocoating"
            targeted  action  is  a  promising  direction.  From  this  point  of  view,  the  development  of
            phytopolymer coating with biologically active plant substance based on extract Great Burnet is
            of scientific and practical interest.
                  This work aimed to analyze the qualitative and quantitative composition of polyphenol
            compounds extracted from Great Burnet and their application in the creation of phytocoating.
                  The  object  of  research:  roots  and  rhizomes  of  Great  Burnet  (Sanguisorbae  radix  et
            rhizoma), collected in the Carpathian Reserve in autumn 2018.
                  Identification  of  polyphenol  compounds  was  carried  out  by  chemical  reactions,  in
            particular,  flavonoids  –  by  Bryant  cyanidin  reaction  and  detection  of  phenolic  hydroxyl  by
            reaction with FeCl3; tanning agents – were detected by reaction with ammonium iron sulfate.
            The phytopolymer coating was synthesized from polyethers and isocyanates in two stages.
                  The high-performance liquid chromatography (HPLC) method was used to determine the
            content  of  flavonoids  and  catechins  on  Agilent  Technologies  1200  liquid  chromatography.
            Acetonitrile (A) and 0.1 % water solution of formic acid (B) were used as the mobile phase for
            flavonoids. Separation was carried out on the chromatographic column Zorbax SB-C18 (3.5 µm,
            150  x  4.6  mm)  (Agilent  Technologies,  USA),  the  flow  rate  through  column  0.25  ml/min
            temperature of thermostat 30 C, the volume of injection 4 µl. The detection was carried out
            using  a  diode-matrix  detector  with  a  signal  recording  at  280  nm  and  a  fixed  absorption
            spectrum at 210–700 nm. Methanol (A) and 0.1 % water solution of formic acid (B) was used as
            the mobile phase for catechins. The detection was carried out using a diode-matrix detector
            with  a  signal  recording  at  275  nm  and  a  fixed  absorption  spectrum  at  210–700  nm.  The
            quantitative  content  of  the  material  under  investigation  was  found  to  be  dominated  by
            neogesperydin (112.17 mg/100 g), rutin (83.55 mg/100 g), and pyrotechquine (87.46 mg/100
            g).
                  The extract of the Great Burnet was used as the carrier of medicinal substances for filling
            in the synthesis of the phytopolymer coating. The hemostatic effect on the blood of the white
            rats  was  investigated.  The  research  was  done  with  a  microscope  and  a  stopwatch.  Blood
            coagulation  was  observed  after  some  time  caused  by  phenol  compounds  released  from
            phytocoating.
                  Thus, the qualitative composition and quantitative content of flavonoids and catechins
            have been investigated by the HPLC method. The predominant content of neogesperydin, rutin,
            and pyrotechyn was established. The synthesized phytopolymer coating with the filling based
            on Great Burnet extract allows suggesting that such coatings with hemostatic action will have
            an  important  place  in  medicine.  The  obtained  results  testify  to  the  perspectives  of  further
            investigation of the hemostatic effect of the obtained "phytocoating" with extract of Sanguisorba
            officinalis.
             Keywords: Sanguisorba officinalis, flavonoids, high-performance liquid chromatography, hemostatic
             effect, phytopolymer coating.





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             5 International Scientific Conference Agrobiodiversity for Improving the Nutrition, Health, Quality of Life and  |101
                                               Spiritual Human Development
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