@article {1654, title = {Microwave-Assisted Extraction and Identification of γ- Oryzanol from Rice Bran (Oryza sativa L. cv Ciliwung)}, journal = {Pharmacognosy Journal}, volume = {13}, year = {2021}, month = {September 2021}, pages = {1242-1247}, type = {Research Article}, chapter = {1242}, abstract = {

Rice Bran (Oryza sativa L. cv Cilliwung) is a by-product of the rice milling process, consisting of an outer layer of rice grains with the whole seed institute. Rice bran oil is a result of rice bran extraction. Rice bran oil contains antioxidant compounds, one of which is oryzanol, so this study aims to determine the levels of or-oryzanol in rice bran. The stages of the research included sample preparation, extraction using Microwave-Assisted Extraction (MAE), followed by Vacuum Liquid Column Chromatography (VLCC) was extracted using the MAE method produced 30 mL of black-brown rice bran oil extract. A total of 8 grams of rice bran extract was obtained at VLCC using eluent (n-hexane: ethyl acetate) with ratios 9:1, 7:3, and 1:1, respectively. Then the five factions obtained were characterized using HPLC, and GC/MS identified the mass of the γ-oryzanol compound.

}, keywords = {Microwave assisted extraction, Rice Bran (Oryza sativa L. cv Cilliwung), Secondary metabolite, γ- Oryzanol}, doi = {10.5530/pj.2021.13.157}, author = {Maryono and Netti Herawati and Meuthia Aulia Farhani Gaffar and Sartini and Aliyah and Elly Wahyudin} } @article {675, title = {Comparison of Tongkat Ali Root Chemical Composition Extracted by Soxhlet, Conventional Steam and Microwave Assisted Extraction Techniques}, journal = {Pharmacognosy Journal}, volume = {10}, year = {2018}, month = {August 2018}, pages = {916-920}, type = {Original Article}, chapter = {916}, abstract = {

Eurycoma longifolia Jack (Tongkat Ali) roots are used in traditional medicines for its wide range of biological effects. The process of extracting out this essential oil from the plant requires a delicate and efficient method. In this research the extract of the essential oil of Eurycoma longifolia\’s root using Microwave Assisted Extraction (MAE), Soxhlet Extraction and Conventional Steam Extraction (CSE) methods, is characterized to identify the components of essential oil extracted and then to compare the yield percentage and components of the extracts from both methods. The extract obtained was characterized using gas chromatography mass spectroscopy (GC-MS) by comparing the compositions of components present in commercial Tongkat Ali oil stored in the GC-MS library. The findings showed that the MAE gives a maximum yield percentage of 5\% with six chemical components extracted in 20 min while SE and CSE gives high yield percentage of 28.3\% in 3 h and 2.5 \% in 6 h respectively with only three chemical components extracted. Therefore, MAE is the optimum method for extracting essential oil from Tongkat Ali with a high quality.

}, keywords = {Conventional Steam Extraction (CSE), Essential oil, Eurycoma longifolia Jack, Microwave assisted extraction, Soxhlet Extraction}, doi = {10.5530/pj.2018.5.154}, author = {Ghazi Faisal Najmuldeen and Kamalanathan Narayanan and Deeveeya A/P Kirubananthan and Ghasak Ghazi Faisal} } @article {421, title = {A Novel Approach towards Green Extraction for Glycyrrhitinic Acid by Ionic Liquid Based Microwave Assisted Extraction and Optimization through Response Surface Methodology}, journal = {Pharmacognosy Journal}, volume = {9}, year = {2017}, month = {September 2017}, pages = {866-872}, type = {Original Article}, chapter = {866}, abstract = {

Background: Extraction process plays an important role in extraction of herbal bioactive components. Ionic liquid based microwave assisted extraction (IL-MAE) has the potential to yield maximum analytes from the crude drugs in shorter time period with less solvent consumption and greater efficiency. Objective: The present study aimed to develop new protocol of Ionic Liquids based Microwave-assisted Extraction (ILs-MAE) of glycyrrhetinic acid from licorice; optimization of the protocol through RSM and comparison of IL-MAE with conventional extraction techniques like maceration and soxhlation by HPTLC. Materials and Methods: A novel ionic liquid-based microwave assisted extraction (IL-MAE) method was carried out for glycyrrhitinic acid from Glycyrrhiza glabra using ionic liquid, 1-butyl-3-methyl-imidazolium chloride ([bmim]Cl) and optimized by response surface methodology. The variable microwaveassisted extraction parameters selected were concentration of [bmim]Cl, extraction time and microwave power while solid-liquid ratio and extraction temperature were kept constant. Response surface methodology was applied for developing, improving and optimizing the whole process and comparison of IL-MAE with maceration and soxhlation by HPTLC. Results: The yield of glycyrrhitinic acid was found to be 0.48 \% w/w in maceration in 7 days, 0.76 \% in soxhlation in 3 h and 2.54 \% w/w in IL-MAE in 4 min. Conclusion: IL- MAE of glycyrrhitinic acid from Glycyrrhiza glabra was proved to be better in respect of extraction efficiency, time and quantity of solvent used. Meanwhile, there was great reduction in the environmental pollution by using the green solvents/ ionic liquids (ILs), which is a great benefit to all.

}, keywords = {Glycyrrhitinic acid, Glycyrrhiza glabra, Microwave assisted extraction, Novel, Response surface methodology., [bmim]Cl}, doi = {10.5530/pj.2017.6.136}, url = {http://fulltxt.org/article/189}, author = {Meenu Bhan and Saurabh Satija and Chanchal Garg and Harish Dureja and Munish Garg} }