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All Journal HAYATI Journal of Biosciences Jurnal Sains Materi Indonesia World Chemical Engineering Journal Prosiding Semnastek Warta IHP (Warta Industri Hasil Pertanian) Public Health of Indonesia Communications in Science and Technology Menara Perkebunan Nizham Journal of Islamic Studies Journal of Robotics and Control (JRC) ASEAN Journal of Chemical Engineering Jurnal Teknik Kimia Indonesia Journal of Integrated and Advanced Engineering (JIAE) Pharmaceutical Sciences and Research (PSR) Makara Journal of Technology Jurnal Sains Materi Indonesia
Misri Gozan
Departemen Teknik Kimia - UI Kampus Baru UI, Depok
Religion Aerospace Engineering Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Earth & Planetary Sciences Education Electrical & Electronics Engineering Engineering Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering Public Health

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Effect of Polycondensation Temperature to Oligomer yield and Depolimerisation Side Reaction Rahmayetty, Rahmayetty; Sukirno, Sukirno; Gozan, Misri
World Chemical Engineering Journal VOLUME 2 NO. 1 JUNE 2018
Publisher : Chemical Engineering Department, Engineering Faculty, Universitas Sultan Ageng Tirtayasa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62870/wcej.v2i1.3467

Abstract

Ring-opening polymerization reaction is the best method for producing high molecular weight polymers. The stage of manufacture of PLA from lactic acid through the lactide ring opening reaction is carried out through three stages of the process ie polycondensation, depolymerization and polymerization. The polycondensation stage of lactic acid is the stage of oligomer formation. At the polycondensation stage, the oligomeric molecular weight is determined by the temperature, pressure, type and concentration of the catalyst used. The purpose of this research was to obtain the effect of polycondensation temperature without catalyst on oligomer recovery and side reactions of depolymerization. Polycondensation is done by pretreatment of lactic acid at 120oC for 1 hour. After that, the heating lactic acid at varying temperatures..OLLA yield at polycondensation temperature 150; 180; 200oC for 4 h and gradually (at 150 oC for 2 h and 180oC for 2 h) were 96.33; 85.36; 82.13 and 88.37% respectively. The higher  polycondensation temperature, the intramolecular interactions of the molecule as a side reaction was increasing.
Techno-Economic and Environmental Analysis of an On-Grid and Off-Grid Renewable Energy Hybrid System in an Energy-Rich Rural Area: A Case in Indonesia Umam, Faikul; Wahyu, Fiki Milatul; Efendi, Mochamad Yusuf; Amir, Nizar; Gozan, Misri; Asmara, Yuli Panca
Journal of Robotics and Control (JRC) Vol. 5 No. 5 (2024)
Publisher : Universitas Muhammadiyah Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18196/jrc.v5i5.22633

Abstract

Developing a dedicated renewable energy hybrid system is a viable option for extending access to electrical energy in energy-rich rural areas. This study conducted a feasibility analysis of using a hybrid energy system, combining solar photovoltaic, wind, and biogas, to generate electricity and meet the energy needs of the rural area. West Waru Village is selected as the case study area for this research because it has abundant renewable energy sources. The Hybrid Optimization of Multiple Energy Resources (HOMER) tools is employed for modeling and optimizing the hybrid energy system, offering a comprehensive analysis encompassing technical, economic, and environmental aspects. Furthermore, the study's findings were further analyzed through a sensitivity analysis, considering unpredictable factors such as village load consumption, solar radiation, wind speed, and biomass availability. Additionally, the study’s results reveals that the renewable energy hybrid system can meet nearly 80% of the rural area's electrical energy requirements at a cost of $0.16 per kWh, resulting in the reduction of 8.4 million kg of carbon dioxide emissions. These findings can serve as a baseline for stakeholders in developing renewable energy systems in rural areas.
Techno-economic evaluation of integrated levulinic acid, formic acid, and furfural plant from oil palm empty fruit bunch with pre-treatment variations Denia Apriliani RAHMAN; Andre Fahriz Perdana HARAHAP; Misri A GOZAN
Menara Perkebunan Vol. 90 No. 1 (2022): 90 (1), 2022
Publisher : INDONESIAN OIL PALM RESEARCH INSTITUTE

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22302/iribb.jur.mp.v90i1.485

Abstract

AbstractLevulinic acid, a platform biochemical, might be utilized as a biodiesel additive in biodiesel production. Global demand for levulinic acids was 3,820 tons in 2020, while the roadmap target of biodiesel in Indonesia will reach 20% of diesel consumption in 2016-2025. These figures become the considerations for establishing the levulinic acid plant in Indonesia. The study's focus analyzed the economic viability of integrated levulinic acid production plant design based on Oil Palm Empty Fruit Bunches (OPEFB) in Indonesia. OPEFB was selected as raw material due to the enormous solid waste generated by oil palm plantations. In the plant design, software SuperPro Designer 9.0's used as a process tool simulator. The economic analysis showed the Net Present Value (NPV) as the US $ 548,850,764, an Internal Rate of Return (IRR) of 24.75%, and a payback period (PBP) estimated within six years with a Minimum Attractive Rate Return (MARR) of 6.1%. The optimal production capacities of levulinic acid, furfural, and formic acid are 12,425; 15,105 and 6,074 tonnes/year.[Keywords: cellulose, delignification, levulinic acid, OPEFB, simulation] AbstrakAsam levulinat, sebuah platform biokimia, dapat digunakan sebagai aditif biodiesel dalam produksi biodiesel. Permintaan global asam levulinat mencapai 3.820 ton pada 2020, sedangkan roadmap target biodiesel di Indonesia mencapai 20% dari konsumsi solar pada 2016-2025. Angka-angka ini menjadi pertimbangan untuk mendirikan pabrik asam levulinat di Indonesia. Fokus penelitian menganalisis kelayakan ekonomi rancangan pabrik produksi asam levulinat terpadu berbasis Tandan Kosong Kelapa Sawit (TKKS) di Indonesia. TKKS dipilih sebagai bahan baku karena limbah padat yang dihasilkan perkebunan kelapa sawit sangat besar. Dalam perancangan pabrik, software SuperPro Designer 9.0 digunakan sebagai alat simulator proses. Analisis ekonomi menunjukkan Net Present Value (NPV) sebesar US$ 548.850.764, Internal Rate of Return (IRR) 24,75%, dan payback period (PBP) diperkirakan dalam enam tahun dengan Minimum Attractive Rate Return (MARR) 6,1%. Kapasitas produksi optimal asam levulinat, furfural dan asam format masing-masing adalah 12.425; 15.105 dan 6.074 ton/tahun.[Kata kunci: selulosa, delignifikasi, asam levulinat, TKKS, simulasi] 
Effect of enzymatic hydrolysis and nitrogen on Saccharomyces cerevisiae β-glucan production from Manihot utilissima and Maranta arunadinacea waste Misri A Gozan; Fita Sefriana; Yemirta Yemirta; Muhammad Arif Darmawan
Menara Perkebunan Vol. 91 No. 1 (2023): 91 (1), 2023
Publisher : INDONESIAN OIL PALM RESEARCH INSTITUTE

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22302/iribb.jur.mp.v91i1.508

Abstract

This experiment utilised cassava (Manihot utillissima) and arrowroot (Maranta arunadinacea) wastes as the medium of propagation of Saccharomyces cerevisiae to produce β-glucan. The amyloglucosidase hydrolysed the waste, followed by fermentation in the nitrogenous medium by S. cerevisiae. The β-glucan pellet was extracted using 2% NaOH alkaline solution at 90°C for 5 hours, followed by a series of centrifugation processes. The highest glucose concentration from hydrolysis resulted from adding 57.5 mg amyloglucosidase enzyme for arrowroot waste with 95.93% conversion and 50 mg enzyme for cassava waste with 64.70% conversion. The highest amount was obtained for producing S. cerevisiae by adding 4.75 g peptone to all samples. The optimum number of cells was obtained at 1.61 x 108 colonies at t = 48 hours for arrowroot waste and 8.55 x 107 colonies at t = 48 hours for cassava waste. For β-glucan production, the highest number was obtained by using 3.99 g of peptone for cassava waste with a yield of 1.20% and by using 4.75 g of peptone for arrowroot waste with a yield of 1.23%. For β-glucan pellet, the highest number was 1.77 g L-1 (0.18 % b/v) from cassava waste medium and 1.91 g L-1 (0.19% b/v) from arrowroot waste. Mutant cells in the Yeast Extract–Peptone–Glycerol (YPG) medium produced 6.56 g L-1 (0.66% b/v) β-glucan pellet, while wild-type cells in the similar medium produced 1.84 g L-1 (0.18% b/v).
A simulation-based feasibility assessment of malic acid production from molasses using Rhizopus arrhizus Heriyanti; Marito, Olivia Yolanda; Huwaida, Ariqah Iffah; Ramadhan, Varrel Ariasatya; Harijanto, Fransiskus Xaverius Ray Setiadharma; Harmami, Sri Budi; Gozan, Misri
Communications in Science and Technology Vol 10 No 1 (2025)
Publisher : Komunitas Ilmuwan dan Profesional Muslim Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21924/cst.10.1.2025.1629

Abstract

Malic acid is a valuable organic acid widely used in food, pharmaceutical, and chemical industries. It can be sustainably produced from underutilized molasses, often classified as waste. This study evaluated the feasibility of malic acid production from molasses, using Rhizopus arrhizus. A SuperPro Designer simulation integrated process design, economic analysis, and sensitivity evaluation and the results demonstrated economic viability with a Net Present Value (NPV) of $2,140,000 (7% discount rate), an Internal Rate of Return (IRR) of 15.81%, a Return on Investment (ROI) of 22.70, and a payback period (PP) of 4.40 years for an annual production capacity of 2,830 MT. Sensitivity analysis highlighted the selling price of malic acid as the most important economic factor. This feasibility study provides a novel approach to integrate molasses-based fermentation with simulation tools, offering actionable insights for industrial-scale implementation by quantifying key economic drivers.
Utilization of Potassium Carbonate-Ethylene Glycol as Deep Eutectic Solvent to Delignification Oil Palm Empty Fruit Bunch for Furfural and Ethanol Production Muryanto; Amelia, Fanny; Nurbayti, Siti; Sudiyani, Yanni; Gozan, Misri
Jurnal Sains Materi Indonesia Vol. 25 No. 2 (2024): Jurnal Sains dan Materi Indonesia
Publisher : BRIN Publishing (Penerbit BRIN)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55981/jsmi.2024.1260

Abstract

Pretreatment using Deep Eutectic Solvent (DES) was done to reduce the lignin content in oil palm empty fruit bunch (OPEFB). DES solution was prepared by combining Potassium Carbonate (K2CO3) as hydrogen bond acceptors (HBA) and Ethylene Glycol (EG) as hydrogen bond donors (HBD). This study aimed to obtain optimum conditions in the pretreatment process and determine the levels of lignin, cellulose, hemicellulose, and glucose in OPEFB. The pretreatment stage was performed at different temperature parameters, 100, 120, and 150°C, for 60 minutes to produce optimum conditions. Biomass pretreated with DES was hydrolyzed by cellulase complex to obtain glycose and xylose. The results showed that the pretreatment optimum condition value achieved with DES K2CO3:EG (1:10) at 150°C for 60 minutes was able to degrade lignin by 46,06%, hemicellulose by 4,08%, increase cellulose by 60,21%. The glucose and xylose content reached 58.48 g/l and 26.60 g/l, respectively. This sugar has potential for ethanol production from glucose and furfural production from xylose.
Co-Authors -, Abdurachman Abdul Haris Achmadin L. Machsun Ahmad Fauzantoro Amelia, Fanny Andre Fahriz Perdana HARAHAP Andre Fahriz Perdana Harahap Andri Pramesyanti Pramono Anondho Wijanarko Anondho Wijanarko Anton Irawan Arief Budi Witarto Arif Rahman Bambang Heru Susanto, Bambang Heru Bambang Prasetya Bambang Prasetya Bambang Prasetya Basra Ahmad Amru Cut Nanda D. R. Barleany Dedy Alharis Nasution, Dedy Alharis Denia Apriliani RAHMAN Dianursanti Endang Suhendi, Endang Eny Kusrini Faikul Umam Fajriati Zulfa Fita Sefriana Galih Rineksa Halimah Anggi Rahmani Hardi Putra Harijanto, Fransiskus Xaverius Ray Setiadharma Haris, Abdul Haryoto Kusnoputranto Heri Hermansyah Heri Hermansyah Heriyanti Huwaida, Ariqah Iffah Izzah Nur Fatimah Josia Simanjuntak Kazuhiro Asami Kazuhisa Ohtaguchi Kitakawa, Naomi Shibasaki Kori Yati Kori Yati Lischer, Kenny Lusi Dwita Lusi Putri Dwita M Baiquni M Baiquni M Baiquni M Samsuri M Samsuri, M M. Baiquni Mahdi Jufri Mardias, R. Mardiastuti Mardiastuti Mardiastuti Wahid Marito, Olivia Yolanda Maya Lukita, Maya Meiskha Bahar Mochamad Yusuf Efendi, Mochamad Yusuf Mohammad Mohammad Mohammad Nasikin Mohammad Nasikin Momoji Kubo, Momoji Muhammad Arif Darmawan Muhammad Yusuf Arya Ramadhan Mujtahid Imaduddin Nurahman Muryanto Muryanto Muryanto, Muryanto Nadia Chrisayu Natasha Nanda, Cut Naomi Shibasaki-Kitakawa, Naomi Nasihin Saud Irsyad Nasikin, M. Nizar Amir Nur Fatimah, Izzah Oktania Sandra Puspita Penjit Srinophakun Praswasti P. D.K Wulan, Praswasti P. D.K Praswasti PDK Wulan Praswasti Wulan, Praswasti Primanti, Afthina R Mardias R Mardias, R Rachmadhi Purwana Rahmayetty Rahmayetty Rahmayetty, Rahmayetty Ramadhan, Varrel Ariasatya Renny S. Mokodongan Renny S. Mokodongan Rita Arbianti Roekmijati Soemantojo, Roekmijati Roekmijati W. Soemantojo, Roekmijati W. Roekmijati Widaningroem Soemantojo Samsuri, M. Setiawan, Mia Sari Sheila Azelya Fernanda Shella Wu, Shella Siswa Setyahadi Siswa Setyahadi Siti Nurbayti Sri Budi Harmami Sukirno Sukirno Sukirno Sukirno Tania Surya Utami Teguh Wikan Widodo, Teguh Wikan Toshiy Yonemoto, Toshiy Wahyu, Fiki Milatul Wijanarko, A. Yanni Sudiyani Yemirta Yemirta Yudan Whulanza Yudhi Nugraha Yuli Panca Asmara Yuliusman Yuliusman Yusraini Dian Inayati Siregar Yustinah Yustinah