and analyzed by the Indonesian Institute of Sciences. The leaves were washed and dried in an oven, and the dried sample was crushed using a grinder. Chemical materials and equipmentHSO 4 ), and [HMIM]Br were obtained from Shanghai Cheng Jie Chemical Co. LTD (China). Other chemicals used in this study included NaHCO 3 (Merck, Germany), K 2 HPO 4 (Merck, Germany), NaCl (Merck, Germany), ethyl acetate (Bratachem, Indonesia), methanol (Merck, Germany), glacial acetic acid (Merck, Germany), Aqua Pro Injection (PT. Ikapharmindo Putramas, Indonesia), quercetin standard (Sigma-Aldrich, Siangapore), and distilled water (CV. Satya Darmawan, Indonesia). The equipment used in the ABSTRACT Introduction: Nothopanax scutellarium leaves have been used in Indonesian traditional medicine to treat several diseases. Previous studies used conventional extraction methods with large volumes of organic solvents, long extraction times, and low levels of quercetin content. This study was aimed to identify the optimal solvent among different ionic liquids that has the highest quercetin content. Methods: Ionic liquids including 1-butyl-3-methylimidazolium bromide, 1-butyl-3-methylimidazolium tetrafluoroborate, 1-butyl-3-methylimidazolium chloride, 1-butyl-3-methylimidazolium hydrogen sulfate, and 1-hexyl-3-methylimidazolium bromide, for extracting quercetin from N. scutellarium leaves using microwave-assisted extraction under the following conditions: ratio, 1:10; operation time, 10 min; and power, 10 W. Then, quercetin was fractionated using ethyl acetate and separated using 0.01 mol/L sodium bocarbonate, dipotassium phosphate or sodium cloride. The total flavonoid content was determined using a UV-Vis spectrophotometer, and quercetin content was determined using HPLC. Results: Extraction with 1-butyl-3-methylimidazolium chloride using NaCl as the separation salt was associated with the highest total flavonoid (360.57 mg/g) content among the ILs, whereas 1-butyl-3-methylimidazolium tetrafluoroborate combined with sodium chloride generated the highest quercetin content (26.13 mg/g). Conclusion: 1-butyl-3-methylimidazolium tetrafluoroborate is the optimal solvent for extracting quercetin from N. scutellarium leaves.

Objective: The purpose of this study was to formulate a phytosome lotion from Mangkokan leaf using green solvent extraction. Methods: Ionic liquid, 1-butyl-3-methylimidazolium tetrafluoroborate, combined with microwave-assisted extraction, was used to obtain flavonoid compounds. Mangkokan leaf extract was formulated into a phytosome with three different ratios of phospholipon (1:0.5), (1:1), and (1:2). Three phytosome formulas were analyzed to identify the best formula. The analysis included morphology, particle size, and zeta potential, entrapment efficiency, and spectrum analysis using an FTIR spectrophotometer. The formula which chosen was formulated into three lotion formulas with different concentration (20%; 25%; 30%) then, evaluated for physical stability, and hair growth activity test included hair length, weight, and diameter. Minoxidil and non-phytosome lotion were used as comparison. Data were analyzed using two-way ANOVA. Results: The FTIR of phytosome was confirmed a complex formation of extract and phospholipon. The phytosome morphology was displayed irregular spherical vesicles. Phytosome with the ratio of phospholipon (1:0.5) was formulated into lotion because has a smaller particle size (289 nm), and higher entrapment efficiency (99.76%±0.24) than others. Phytosome lotions displayed higher activity than 2% minoxidil (p = 0.0001). Phytosome lotion (30%) thus showed the highest efficacy for hair length, weight and diameter. Conclusion: Mangkokan leaf that extracted using 1-butyl-3-methylimidazolium tetrafluoroborate solvent combined with microwave-assisted extraction then formulated into phytosome lotion has higher activity than 2% minoxidil. Lotion that contains 30% mangkokan leaf phytosome was showed the highest efficacy.