@article {1221, title = {Chemical Composition and Content of Polysaccharides from the Yellow Iris (Iris pseudacorus L.) Rhizomes}, journal = {Pharmacognosy Journal}, volume = {12}, year = {2020}, month = {August 2020}, pages = {1012-1018}, type = {Original Article}, chapter = {1012}, abstract = {

Background: The aim of the present study was to examine the composition and content of the polysaccharide complex and polysaccharide fractions from yellow iris (Iris pseudacorus L.) rhizomes growing in Russian Federation (Moscow region). Materials and Methods: Traditional pharmacognostic methods were used in the analysis of polysaccharides as biologically active substances. The total amount of polysaccharides was determined by a gravimetric procedure with alcohol precipitation. Fractions of polysaccharides were isolated by sequential changing of solvents. The content of monosaccharides was determined by the method of high-performance liquid chromatography with refractometric detection (HPLC-RID) after acid hydrolysis. HPLCRID procedure was performed using Chromatograph Agilent 1260 Infinity, Sugar-Pak column (300{\texttimes}6.5 mm), and isocratic elution mode. Results: Polysaccharide complex was isolated, the total content of polysaccharides in the rhizomes of I. pseudacorus was determined, as well as their distribution by fractions (water-soluble polysaccharides, pectic substances, hemicellulose A, hemicellulose B), the composition of individual sugars (glucose, xylose, galactose, mannose, rhamnose, arabinose) was determined for each fraction. Conclusion: In our experiment polysaccharide complex was first identified and described in detail for I. pseudacorus grown in Moscow region.

}, keywords = {Hemicellulose, Iris pseudacorus L., Pectins, Polysaccharides, Water-soluble Polysaccharides, Yellow iris}, doi = {10.5530/pj.2020.12.143}, author = {Tikhomirova EA and Sorokina AA and Bubenchikova VN and Kostikova EN and Zhilkina VYu and Bessonov VV} } @article {1104, title = {Study of Quality Medicinal Plants Bark Walnuts and Extract from it}, journal = {Pharmacognosy Journal}, volume = {12}, year = {2020}, month = {March 2020}, pages = {282-286}, type = {Original Article}, chapter = {282}, abstract = {

Objective: The bark of walnut is currently poorly understood and is not represented in the Russian State Pharmacopeia. The purpose was to study the quality indicators medicinal plants walnut crust and extracts therefrom were studied: moisture content, total ash, ash insoluble in 10\% hydrochloric acid feedstock walnut crust; content of tannins and juglone in walnut crust; GC-mass spectrometric study of the composition petroleum extract from the bark of a walnut. Materials and Methods: Microscopy was prepared by the pharmacopoeial method. The chemical composition of the petroleum extract was investigated by chromatomass spectrometry. Results: The content of glycosides amount in terms of gidroyuglone glucoside and absolutely dry RL was 5.30 {\textpm} 0.15. Humidity was 9,41\% {\textpm} 0,21. total ash content was 10,18\% {\textpm} 0,1. The ash content insoluble in 10\% hydrochloric acid was 4.8 {\textpm} 0.16. Gas chromatography-mass spectrometry method in petroleum extraction from the bark of walnut were identified following compounds: oktadetsilgeksanoat (28\%) of 4-isopropenyl- 1-methyl-2-cyclohexenol-1 (38\%), cineole (1,6\%), thujone (0.7\%), camphor (16.6\%), 2 - benzamidoantrahinone (0.45\%), 4,5 - dihydroxy - 3,4 - dihydro - 1 (2H) - naftalenon (6.4\%) ethyl ester of palmitic acid (8.25\%) Toxic effects petroleum extract was TD50 = 2,5. Chronic absent. All mice in the experimental group had diarrhea. It was established that the extraction has petroleum anthelmintic properties at askaridioze. Conclusions: The analysis of petroleum extraction from walnut partitions was carried out, the content of basic biologically active substances was revealed. The main anatomical and diagnostic signs of walnut bark walls were studied.

}, keywords = {Juglans regia, Total ash, Toxic effect}, doi = {10.5530/pj.2020.12.44}, author = {Strelyaeva AV and Lezhava DI and Luferov AN and Kuznetsov RM and Bobkova NV and Lazareva YuB and Kostikova EN} }