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All Journal JURNAL INTEGRASI PROSES Communication in Food Science and Technology Scientific Contributions Oil and Gas
Fauzi Yusupandi
Institut Teknologi Sumatera
Agriculture, Biological Sciences & Forestry Chemical Engineering, Chemistry & Bioengineering Chemistry Energy Other

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MICROWAVE-ASSISTED EXTRACTION OF TANNIN FROM PAPAYA LEAVES (CARICA PAPAYA LINN): THE EFFECT OF SOLVENT RATIO AND MICROWAVE POWER Glen Bower Vebrianto Siregar; Early Akhalisty Inge Abigail Br Simanjuntak; Desi Riana Saputri; Yunita Fahni; Mustafa Mustafa; Rifqi Sufra; Reni Yuniarti; Fauzi Yusupandi; Faalih Pandu Wicaksono Hadi; Diana Catur Pratiwi; Putri Jesika Adelia; Vania Nur Wahdani; Angeline Nauli; Khofifah Anggitiya Ningrum; Misbahudin Alhanif
JURNAL INTEGRASI PROSES Vol 13, No 1 (2024)
Publisher : JURNAL INTEGRASI PROSES

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62870/jip.v13i1.24363

Abstract

Papaya leaves (Carica papaya Linn) have many health benefits, such as antibacterial, anti-inflammatory, antidiarrhea, and others. Papaya leaves contain tannins, saponins, alkaloids, triterpenoids, steroids, and flavonoids. The common characteristic of papaya leaves is the green color, which indicates the presence of tannins. The study aims to discover the characteristics of papaya leaf extract, the effect of the solvent ratio, and the microwave power (MP) on the extraction of tannins from the papaya leaves. Papaya leaves are extracted using the microwave-assisted extraction (MAE) method at 100, 140, and 180 W for 30 minutes, with variations in the material to the solvent ratios 1:10, 1:20, 1:30, 1:40, and 1:50. Qualitative tannin testing was carried out through color observation and FeCl3 tests. UV-Vis spectrophotometry was also used to determine the tannin levels obtained during extraction. The FeCl3 test showed that papaya leaf extract contains tannins. The optimal concentration of tannins is produced at a ratio of 1:20, with a 180 W MP of 8.06 mg TAE/g and a yield of 0.81%. MAE can potentially increase the yield of tannins, which is potentially beneficial to health.
Process Simulation and Optimization of Green Hydrogen Production from Rubberwood Sawdust Pellets Via Gasification Using Unisim Design for Oil Refining Basuki Rahmad Saleh; Irdam Ahmad; Herlina Juni Risma Saragih; Agus Adriyanto; Abdul Rozak Kodarif; Fauzi Yusupandi; Damayanti; Muhammad Rifqi; Hanif Fawaz Za’im; Yazid Bindar
Scientific Contributions Oil and Gas Vol 49 No 3 (2026)
Publisher : Testing Center for Oil and Gas LEMIGAS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29017/scog.v49i3.2172

Abstract

Indonesia pushes to expand renewable energy to create growing interest in low carbon hydrogen. Rubberwood processing generates large volumes of sawdust that are commonly pelletized for fuel, offering a locally available biomass feedstock for hydrogen rich gas production. This study evaluates the potential of producing green hydrogen from rubberwood sawdust pellets through gasification using process simulation. Feedstock properties were determined through proximate and ultimate analyses and implemented in a two stage simulation framework consisting of pyrolysis followed by gasification. The model was validated against published experimental data for steam gasification of wood residue, and the deviation between predicted and reference gas compositions was evaluated using the root mean square error. After validation, sensitivity analyses were conducted at a gasifier temperature of 700 °C for three gasifying agent configurations: steam only, steam with air, and steam with oxygen. Under steam-only operation, increasing S/B from 0 to 1.0 increased H₂ from approximately 44 to 56 mol%, while HEE increased from about 27 to 36% and LHV decreased from about 11.4 to 8.6 MJ/Nm³. Under steam plus air, increasing S+E/R to about 1.0 reduced H₂ from approximately 56 mol% to near zero while CO₂ increased from about 30 to 85 mol%. Under steam plus oxygen, increasing O/B to 1.0 reduced H₂ from approximately 56 to 22 mol% and increased CO₂ from about 30 to 73 mol%. Overall, the results indicate that steam rich and oxygen lean operation is the most favorable pathway for enhancing hydrogen rich gas production from rubberwood sawdust pellets and provide a simulation basis for selecting operating conditions to support national energy resilience.
Analysis of Vitamin A Content and Antioxidant Test in Super and Bulk Olein Desi Riana Saputri; Yuniar Luthfia Listyadevi; Muhammad Alparidi Pamungkas Putra; Muhammad Triyogo Adiwibowo; Andri Sanjaya; Damayanti Damayanti; Wika Atro Auriyani; Yunita Fahni; Fauzi Yusupandi; Reni Yuniarti; Edwin Rizki Safitra
Communication in Food Science and Technology Vol. 3 No. 2 (2024): Communication in Food Science and Technology
Publisher : Lembaga Penelitian dan Pengabdian Masyarakat, Institut Teknologi Sumatera

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35472/cfst.v3i2.1980

Abstract

Cooking oil is the essential food for bodies. Cooking oil should be enriched with vitamin A because this substance plays a critical role in maintaining health. Cooking oil contains antioxidant compounds, which inhibit or slow down oxidation reactions. This study aimed to determine the amount of vitamin A in super olein and bulk olein before fortification and the amount of antioxidant content in super olein and bulk olein before fortification. The amount of vitamin A content was obtained using the High-Performance Liquid Chromatography (HPLC) method of <0.005 IU/gram, while the antioxidant test results were carried out by the 2,2-Diphenyl-1-picrylhydrazyl (DPPH) method using UltraViolet-Visible Spectrophotometry (UV-Vis). The resulting antioxidant activity has an inhibition value of 23% and 10% in bulk and super olein, respectively. Cooking oil is the essential food for bodies. Cooking oil should be enriched with vitamin A because this substance plays a critical role in maintaining health. Cooking oil contains antioxidant compounds, which inhibit or slow down oxidation reactions. This study aimed to determine the amount of vitamin A in super olein and bulk olein before fortification and the amount of antioxidant content in super olein and bulk olein before fortification. The amount of vitamin A content was obtained using the High-Performance Liquid Chromatography (HPLC) method of <0.005 IU/gram, while the antioxidant test results were carried out by the 2,2-Diphenyl-1-picrylhydrazyl (DPPH) method using UltraViolet-Visible Spectrophotometry (UV-Vis). The resulting antioxidant activity has an inhibition value of 23% and 10% in bulk and super olein, respectively.
Co-Authors Abdul Rozak Kodarif Adriyanto, Agus Andri Sanjaya Angeline Nauli Basuki Rahmad Saleh Damayanti Damayanti Damayanti Desi Riana Saputri Diana Catur Pratiwi Early Akhalisty Inge Abigail Br Simanjuntak Edwin Rizki Safitra Faalih Pandu Wicaksono Hadi Glen Bower Vebrianto Siregar Hanif Fawaz Za’im Herlina Juni Risma Saragih Irdam Ahmad Khofifah Anggitiya Ningrum Misbahudin Alhanif Muhammad Alparidi Pamungkas Putra Muhammad Rifqi Muhammad Triyogo Adiwibowo Mustafa Mustafa Putri Jesika Adelia Reni Yuniarti Rifqi Sufra Vania Nur Wahdani Wika Atro Auriyani Yazid Bindar Yuniar Luthfia Listyadevi Yunita Fahni