@article {1159, title = {Pharmacognostical Investigations of Hedysarum Caucasicum Bieb. (Fabaceae) - An Ethnomedicinal Plant of Northern Caucasus, Russia, Determination of Mangiferin and Antibacterial Potentials}, journal = {Pharmacognosy Journal}, volume = {12}, year = {2020}, month = {May 2020}, pages = {510-518 }, type = {Original Article}, chapter = {510 }, abstract = {

The main active component of members of the genus Hedysarum is xanthone C-glycoside - mangiferin which was found in the above-ground part of 17 species of Hedysarum. Mangiferin is contained in plants of the genus Hedysarum can serve as a chemotaxonomic marker of this genus, it has antiviral activity against DNA-containing viruses: Herpes simplex virus, Varicella zoster, Cytomegaloviruses, also has immunostimulatory properties (stimulates cellular and humoral immunity). We have prepared the morphological and anatomical studying, phytochemical research availability of tannines, flavonoids, xanthones, the free organic acids, the sugars and amino acids among which in the significant amount glutamic acid, aspartic acid and an arginine collect is established. The maintenance of the sum of xanthones made 7.12\%. As a result of a research of amino-acid structure of a grass of Hedysarum caucasicum Bieb. presence at the significant amount of glutamic acid (13.58 g/kg), aspartic acid (13.61 g/kg), an arginine (14.99 g/kg) is revealed. In a grass of Hedysarum caucasicum Bieb. The quantitative maintenance of the sum of xanthones in terms of a specific indicator of a mangiferin is established. The technology of receiving a liquid extract by means of 80\% of ethanol is developed, standardization is carried out it. It is established that extract of Hedysarum caucasicum Bieb. shows the antimicrobial activity concerning Shigella sonnei, Bacillus subtilis and B.anthracoides.

}, keywords = {Hedysarum, Hedysarum caucasicum Bieb., Mangiferin}, doi = {10.5530/pj.2020.12.78 }, author = {Serebryanaya Fatima К and Imachueva Djavgarat R and Guseynova Ziyarat A} } @article {532, title = {Pharmacognostic Specification and Mangiferin Content of Aquilaria crassna Leaves.}, journal = {Pharmacog Journal}, volume = {10}, year = {2017}, month = {January-2018}, pages = {293-298}, type = {Original Article}, chapter = {293}, abstract = {

Background:\ Aquilaria\ crassna\ Pierre ex Lecomte (Thymelaeaceae) has been used as a medicinal plant in many aspects. Previous research has revealed that A. crassna leaves contain mangiferin as an active compound. Although the active component has been investigated, the pharmacognostic specification and quantification of mangiferin from A. crassna leaves have never been established. Objective: The current study aimed to conduct and develop a pharmacognostic standard according to WHO guidance as well as the validated method for quantifying mangiferin content. Materials and Methods: Dried A. crassna leaves from 15 separated locations throughout Thailand were investigated for pharmacognostic specification. Their mangiferin contents were quantitatively analysed by TLC densitometry with win CATS software. Results: Macroscopic-, microscopic- characteristics and TLC fingerprinting combined with physicochemical parameters were reported in this study. The loss on drying, moisture content, and total ash content as well as acid-insoluble ash content were determined to be 8.62 \± 0.13, 8.16 \± 0.14, 6.82 \± 0.09 and 1.49 \± 0.03\%, respectively. Ethanol- and waterextractive values were found to be 9.05 \± 0.39 and 16.94 \± 0.22 \%, respectively. In addition, the validation method for quantifying the mangiferin content was developed. The contents of mangiferin in A. crassna leaf extract determined by TLC-densitometry and TLC-image analysis were found to be 1.2992 \± 0.5980 and 1.3036 \± 0.5874 \% by dried weight, respectively. The results between these two analytical methods were shown to have an insignificant difference. Conclusion: This study provides the necessary information for authentication and standardisation of A. crassna leaves.

}, keywords = {Aquilaria crassna leaves, Mangiferin, Pharmacognostic specification, TLC image analysis, TLC-densitometry}, doi = {10.5530/pj.2018.2.51}, url = {http://fulltxt.org/article/481}, author = {Worathat Thitikornpong and Boonsri Ongpipattanakul and Chanida Palanuvej and Nijsiri Ruangrungsi} } @article {1489, title = {Development and validation of a RP-HPLC method for the simultaneous determination of Mangiferin, Ellagic acid and Hydroxycitric acid in polyherbal formulation}, journal = {Pharmacognosy journal}, volume = {6}, year = {2014}, month = {8th April 2014}, pages = {23-28}, type = {Original Article}, abstract = {

The US patented polyherbal formulation for the prevention and management of Type II diabetes and its vascular complications was used for the present study. The formulation consists of roots of Salacia species, leaves of Lagestroemia parviflora and fruit rind of Garcinia indica. The use of reversed phase C18 HPLC column was used and eluted with isocratic mobile phase of acetonitrile and phosphoric acid buffer solution enabled the efficient separation of chemical markers within 20min. Validation of the method was performed in order to demonstrate its selectivity, accuracy, precision, repeatability and recovery. All calibration curve shows good linear correlation coefficients (r2\>0.995) within tested ranges. Three markers in this polyherbal formulation were quantified were Mangiferin (1.53\% w/w), Ellagic acid (0.9655 w/w), Hydroxycitric acid (5.3\% w/w). Intra and inter day RSDs of retention times and peak areas were less than 3\%. The recoveries were between 95\% and 102.5\%. In conclusion a method has been developed for the simultaneous quantification of three markers in this polyherbal formulation. The established RP-HPLC method was simple, precise and accurate and can be used for the quality control of the raw materials as well as formulations.

Key words: Polyherbal formulation, Mangiferin, Ellagic acid, Hydroxycitric acid, RP-HPLC.

}, keywords = {Ellagic acid, Hydroxycitric acid, Mangiferin, Polyherbal formulation, RP-HPLC}, author = {Ananth Kumar Kammalla, and Mohan Kumar Ramasamy, and Agarwal Aruna, and Dubey GP, and Ilango Kaliappan} }