@article {1294, title = {Antihypertensive Assay-Guided Fractionation of Syzygium polyanthum Leaves and Phenolics Profile Analysis Using LCQTOF/ MS}, journal = {Pharmacognosy Journal}, volume = {12}, year = {2020}, month = {November 2020}, pages = {1670-1692}, type = {Research Article}, chapter = {167}, abstract = {

Introduction: Syzygium polyanthum leaves extract that contains gallic acid as the major phenolic compound has shown significant antihypertensive effect, however the amount of gallic acid was inversely-related with magnitude of this effect. This study aimed to conduct bioassay-guided fractionation of S. polyanthum leaves with gallic acid as a reference compound, and to screen for other possible compounds responsible for the antihypertensive effect. Methods: S. polyanthum leaves were extracted using n-hexane, ethyl acetate, methanol, and water. The most active crude extract was fractionated using column chromatography and analyzed for total phenolic content (TPC) (n=3). Crude extracts and the derived fractions were intravenously administered into pentobarbital-anaesthetized Spontaneously Hypertensive rats (n=5) for recording of blood pressure parameters. Liquid Chromatography-Quadruple Time-Off-Flight/Mass Spectrometry was used for determination of chemical composition. One-way and two-way ANOVA were used for statistical analysis using GraphPad{\textregistered} PRISM Version 6. Results: Fractionation of aqueous S. polyanthum leaves extract (ASP) afforded nine fractions, later combined into three fractions (F1ASP, F2ASP, and F3ASP) based on the thinlayer chromatography profiles. ASP has the highest TPC while F2ASP has the lowest TPC. All fractions exhibited significant antihypertensive property, but F2ASP was the most active fraction. Few phenolics with related antihypertensive effects such as 1-galloyl glucose (a gallic acid-derivative majorly found in F2ASP and F3ASP), and other compounds such as polydatin, sesamol, brazilin, eugenol, ellagic acid, kukoamine A, and cyclocurcumin were found across all active fractions. Conclusion: These phenolics may partly contribute to the antihypertensive effect of S. polyanthum leaves, thus further isolation study is recommended.

}, keywords = {Antihypertensive, Bioassay-guided, LCMS, Syzygium polyanthum, Total phenol content (TPC)}, doi = {10.5530/pj.2020.12.227}, author = {Azlini Ismail and Erlena Nor Asmira Abdul Rahim and Muhammad Nor Omar and Wan Amir Nizam Wan Ahmad} } @article {1051, title = {Impact of Solvent on the Characteristics of Standardized Binahong Leaf (Anredera cordifolia (Ten.) Steenis)}, journal = {Pharmacognosy Journal}, volume = {11}, year = {2019}, month = {November 2019}, pages = {1463-1470}, type = {Original Article}, chapter = {1463}, abstract = {

Background: Binahong is a plant that has the potential to be used as a traditional herbal medicine in Indonesia, and has several kinds of classes of compounds, one of them is a flavonoids glycosides (vitexin). Previous research reported that binahong leaves have pharmacological activities as antihyperglycemic, antihyperlipidemic, antibacterial, and others. A traditional plant that has proven efficacious needs to be standardized to ensure the quality and its safety. Objective: This study aimed to characteristics of binahong leaves simplicia obtained from Bogor, West Java. Materials and Methods: The crude extract was obtained by the maceration method using 40\%, 70\%, and 96\% ethanol solvent. The selected extract then standardized, which includes macroscopic and microscopic observations and sets the standard parameter values binahong leaf extract. Parameters LCMS to identify active compounds semiquantitatively. Results: The yield of binahong ethanol extract from 40\%, 70\%, 96\% showed a value of 10.9\%, 11.4\%, and 12.32\%, respectively. From these results, 96\% ethanol extract has proceeded for standardization. Macroscopic observation results showed that binahong leaves simplicia has a fine and notched form with 5-10 cm long and 3-7 cm diameter. The microscopic binahong leaves contain palisade tissue, parenchymal tissue, chlorophyll grains, rosette Caoxalate crystals, and spiral type. Phytochemical screening of binahong leaves showed the presence of alkaloids, flavonoids, saponins, tannins, steroids, and phenolic compounds.The standardization of binahong leaves ethanol extract down showed a levels of ethanol-soluble extract\> 14.8\%, water-soluble extract content \> 13.5\%, drying \< 10\%, water content \< 8.9\%, total ash content \< 7.2\%. LCMS profiles showed that ethanolic extract 40\%, 70\%, and 96\% all contained vitexin at retention time 5.02 minutes, and m/z values 433.1111. Conclusion: 96\% ethanolic extract of binahong leaves contains vitexin with pharmacognostic parameters carried out following the standards listed in the Indonesian herb pharmacopeia.

}, keywords = {Anredera cordifolia, Extract, LCMS, Simplicia, standardization}, doi = {10.5530/pj.2019.11.226}, author = {Dwitiyanti and Yahdiana Harahap and Berna Elya and Anton Bahtiar} }