@article {1639, title = {Single Factor Effect of Natural Deep Eutectic Solvent Citric Acid-Glucose Based Microwave-Assisted Extraction on Total Polyphenols Content from Mitragyna speciosa Korth. Havil Leaves}, journal = {Pharmacognosy Journal}, volume = {13}, year = {2021}, month = {September 2021}, pages = {1109-1115}, type = {Original Article}, chapter = {1109}, abstract = {

Applying green chemistry principles in the exploration of an active secondary metabolite from natural products has continued to experience a significant increase in the last decade, mainly natural deep eutectic solvent (NADES) usage. Mitragyna speciosa (Korth.) Havil (Rubiaceae family) is a native of East Kalimantan, which is traditionally used as an herb to treat headaches and inflammation by drinking boiled water a few leaves. On the other hand, this plant has an addictive effect. This study aims to determine the single factor effect of NADES citric acid{\textendash}glucose-based microwave-assisted extraction (MAE) to obtain the yield of total polyphenols content (TPC) from M. speciosa leaves. Dried powder of M. speciosa leaves was extracted using NADES citric acid-glucose based MAE method with some different conditions such as NADES (citric acid-glucose) ratio (4:1, 5:1, 6:1 g/g), solid-liquid ratio (10:1, 15:1, 20:1 mL/g), microwave power (90, 270, 450 Watts), and extraction time (15, 20, 25 min). The determination of TPC was performed using Folin-Ciocalteau reagent and gallic acid as a standard with different concentration levels. The absorbance measured using spectrophotometer UV-VIS at 746 nm to obtain a regression formula of Y = 0.0022X{\textendash}0.00095, where R2 = 0.9977. Based on the result, the best of single factor condition effect was obtained the TPC value including NADES ratio of 248.69 mg GAE/g sample (5:1 g/g citric acid-glucose), a solid-liquid ratio of 146.93 mg GAE/g sample (15:1 mL/g solvent-sample), microwave power of 192.20 mg GAE/g sample (270 Watts), and extraction time of 358.59 mg GAE/g sample (15 min). The single factor effect of NADES citric acid-glucose-based MAE shows a difference in TPC value based on various conditions of this method.

}, keywords = {Citric acid-glucose, Microwave-assisted extraction, Mitragyna speciosa (Korth.) Havil, Natural deep eutectic solvent, Total polyphenols content}, doi = {10.5530/pj.2021.13.143}, author = {Herman and Arsyik Ibrahim and Bakti Puji Rahayu and M Arifuddin and Yuspian Nur and Wisnu Cahyo Prabowo and Maryono and Neneng Siti Silfi Ambarwati and Laode Rijai and Islamudin Ahmad} } @article {256, title = {Application of Ionic Liquid based Microwave-Assisted Extraction of the Secondary Metabolite from Peperomia pellucida (L) Kunth}, journal = {Pharmacognosy Journal}, volume = {9}, year = {2017}, month = {February 2017}, pages = {227-234}, type = {Original Article}, chapter = {227}, abstract = {

Introduction: An ionic liquid (ILs) is a new alternative solvent (containing cations and anions) has the physical and specific solutions properties, and also had proven to be a promising substituent of conventional organic solvents are flammable, volatile and toxic in various processes. The ILS application in separating the secondary metabolites compound from Peperomia pellucida (L) Kunth herbaceous can be carried out using microwaveassisted extraction method (MAE). Objective: The aim of this study was to investigate the effect of ionic liquid based microwave-assisted extraction method for attracting the secondary metabolites compound from P. pellucida compared with a conventional solvent for the enrichment of secondary metabolites (especially polyphenols group) and their HPTLC fingerprinting profile. Methods: The herb dried powder extracted by microwave-assisted extraction using an ionic liquid such us 1-Butyl-3-methylimidazolium chloride ([BMIM]Cl), 1-Butyl-3-methylimidazolium Bromide ([BMIM]Br). The obtained extract solution was partitioned using an organic solvent; the extract was evaporated to obtain a dry extract and determination the HPTLC fingerprinting profile. Results: Based on the research results was obtained from the various types of solvents there are differences in the extraction of secondary metabolite.

}, keywords = {HPTLC profile, Ionic liquid, Microwave-assisted extraction, Peperomia pellucida (L) Kunth, Secondary metabolite.}, doi = {10.5530/pj.2017.2.38}, url = {http://phcogj.com/fulltext/305}, author = {Islamudin Ahmad and Arry Yanuar and Kamarza Mulia and Abdul Mun{\textquoteright}im} }