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Telaah Potensi Penerapan Teknologi Terkini pada Hidrolisis Selulosa dengan Sistem Pengendalian Terintegrasi dalam Proses Bioetanol G2 Ditia, Anissa; Bardant, Teuku Beuna; Utami, Amaliyah Rohsari Indah; Maryana, Roni; Irawan, Yan; Muryanto, Muryanto; Triwahyuni, Eka; Sudiyani, Yanni
JURNAL SELULOSA Vol 11, No 01 (2021): JURNAL SELULOSA
Publisher : Center for Pulp and Paper

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25269/jsel.v11i01.320

Kajian ini merangkum teknologi dan inovasi sistem pengendalian yang berpotensi diterapkan dalam intensifikasi proses hidrolisis selulosa pada produksi bioetanol G2. Telaah dimulai dari perkembangan terbaru intensifikasi produksi bioetanol secara umum. Hidrolisis selulosa adalah tahapan pembeda antara proses bioetanol G2 dan generasi sebelumnya. Perhatian utama dalam intensifikasi hidrolisis selulosa adalah pada bagaimana hidrolisis selulosa terintegrasi dengan sistem pengendalinya dan integrasi hidrolisis selulosa dengan bagian hulu (pretreatment) dan hilir (penyulingan). Keunikan proses ini adalah durasi kerja yang membutuhkan 48 jam dan viskositas campuran yang tergantung waktu. Bagian akhir telaah ini memetakan potensi penerapan teknologi dan inovasi terbaru yang telah dirangkum. Pemetaan berdasarkan potensi peningkatan efisiensi dan potensi tambahan investasi. Sakarifikasi Very High Gravity (VHG) pada kecepatan pengadukan optimum dan intermitten dinilai sebagai pilihan paling menarik bila intensifikasi dilakukan pada unit produksi yang telah berdiri. Namun jika intensifikasi untuk rancangan pabrik baru, maka tangki hidrolisis yang dirancang dengan simulasi CFD, dilengkapi dengan sekat (baffles) yang bergerak terkendali, dan rancangan batang pengaduk (impeller) paling cocok menurut simulasi adalah pilihan menarik. Rancangan ini kemudian diintegrasikan dengan sistem pengendali yang mampu memperkirakan perubahan viskositas.Â Review on Potency of Application Recent Technology in the Integrated Process and Control on Cellulose Hydrolysis in Bioethanol G2 Production ProcessAbstractThis review listed current technologies and innovations in the control system which potentially applied in the intensification of cellulose hydrolysis as part of 2nd Generation Bioethanol production process. The review started from the general latest innovations in the 2nd Generation Bioethanol. Cellulose hydrolysis as the main characteristics in the 2nd Generation of Bioethanol required further attention in the intensification. Especially in how to integrate cellulose hydrolysis with its control system and to integrate it with upstream and downstream units. The special requirements in cellulose hydrolysis are 48 hours agitation duration and time-dependent mixture viscosity. At the end of the review, listed technologies were assessed to be applied in the 2nd Generation Bioethanol. The assessment was based on their potency in increasing process efficiency and the potency of required investment if they are applied. A Very High Gravity (VHG) saccharification at optimum intermittent agitation speed was a promising innovation for cellulose hydrolysis if intensification was conducted onto the existing production plant. If intensification is conducted to a plant design, building an agitation tank according to best Computational Fluid Dynamic (CFD) simulation, complemented with controlled moving baffles and best suitable impeller design is a promising design for efficient hydrolysis. This agitation tank was then completed with the advanced available control system, which is capable to adapt the viscosity changes.

Identification of Chemical Compounds of Cymbopogon Nardus (L.) Rendle and Ocimum Basilicum (L.) using Gas Chromatography-Mass Spectrometry (GC-MS) Sari, Eka Syafitri Puspita; Anwar, Yelfi; Maryana, Roni; Muryanto, Muryanto
BIOEDUKASI Vol 22 No. 2 (2024)
Publisher : PROGRAM STUDI PENDIDIKAN BIOLOGI FAKULTAS KEGURUAN DAN ILMU PENDIDIKAN UNIVERSITAS JEMBER

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.19184/bioedu.v22i2.48009

Citronella essential oil (Cymbopogon nardus (L.) and basil leaf essential oil (Ocimum basilicum (L.) offer various benefits, including antibacterial properties. This study aims to identify the chemical compounds present in these oils obtained through local distillation at PT Syailendra Bumi Investama in Wonorejo Village, Gondangrejo, Karanganyar, Central Java. Gas Chromatography-Mass Spectrometry (GC-MS) analysis was conducted at the BRIN (National Innovation Research Agency) in Serpong, South Tangerang, Banten, to characterize citronella essensial oil and basil essential oil. The findings indicate that citronella essential oil meets the criteria of SNI 06-3953-1995, with three compounds showing significant concentrations: Geraniol (26.49%), citronellol (14.53%), and citronellal (10.95%). Similarly, research on basil leaf essential oil conforms to ISO 11043 - 1998 standards, revealing high concentrations of two compounds: Estragole (55.80%) and linalool (22.35%).

Conversion of Isopropanol to Diisopropyl Ether over Cobalt Phosphate Modified Natural Zeolite Catalyst Hasanudin, Hasanudin; Asri, Wan Ryan; Rahmawati, Rahmawati; Riyanti, Fahma; Maryana, Roni; Al Muttaqii, Muhammad; Rinaldi, Nino; Hadiah, Fitri; Novia, Novia
Bulletin of Chemical Reaction Engineering & Catalysis 2024: BCREC Volume 19 Issue 2 Year 2024 (August 2024)
Publisher : Masyarakat Katalis Indonesia - Indonesian Catalyst Society (MKICS)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.9767/bcrec.20144

This study aims to produce diisopropyl ether (DIPE) via isopropanol dehydration using cobalt-phosphate-supported natural zeolite catalysts. The catalytic activities of the zeolite/CoO and zeolite/Co(H2PO4)2 were compared. The as-prepared catalysts were assessed using X-ray diffraction (XRD), scanning electron microscopy (SEM) with energy-dispersive X-ray spectroscopy (EDX), Fourier transform infrared (FTIR) spectroscopy, and N2 adsorption-desorption. Surface acidity was determined using the gravimetric method with pyridine as the probe. The results of this study showed that natural zeolite was favorably impregnated by CoO and Co(H2PO4)2 species. The impregnation process affected the textural and acidic features of the catalysts. The zeolite/Co(H2PO4)2 catalyst with a loading of 8 mEq.g-1 exhibited the highest surface acidity of 1.827 mmol.g-1. This catalyst also promoted the highest catalytic activity towards isopropanol dehydration, with an isopropanol conversion of 66.19%, DIPE selectivity, and yield of 46.72% and 34.99%, respectively. The cobalt phosphate species promoted higher catalytic activity for isopropanol dehydration than the CoO species. This study demonstrated the potential of cobalt phosphate-supported natural zeolite catalysts for DIPE production with adequate performance. Copyright © 2024 by Authors, Published by BCREC Publishing Group. This is an open access article under the CC BY-SA License (https://creativecommons.org/licenses/by-sa/4.0).

Analisis Pengelolaan Limbah Kulit Durian di Provinsi Riau Terhadap Potensi Ekonomi dan Dampak Lingkungan Ariyanti, Dita; Rimantho, Dino; Maryana, Roni; Sekarini, Artanti; Hasibuan, Monalisa; Riza, Subkhan; Utiya Syah, Shinta
IPTEKIN Jurnal Kebijakan Pembangunan dan Inovasi Vol. 6 No. 2 (2024)
Publisher : Badan Riset dan Inovasi Daerah (BRIDA) Provinsi Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar

Durian, known as the "King of Fruits" in Southeast Asia, is economically important in Indonesia, particularly in Riau Province. It not only serves as a local delicacy but also has export and agro-tourism potential. However, data from the Riau Central Statistics Agency (BPS) show fluctuating plantation areas and production rates from 2019 to 2022, with a decrease in plantation areas but varying production levels, peaking in 2022. These fluctuations affect durian rind waste generation, posing environmental concerns. Preliminary studies suggest that current waste management practices are inadequate despite the potential for converting durian rinds into useful products like organic fertilizers or biofuels. This study aims to analyze plantation areas, production rates, and durian rind waste generation in Riau while evaluating consumer attitudes and behaviors regarding waste management. It employs both quantitative methods, such as data collection from BPS and field surveys, and primary methods like questionnaires. Analysis includes descriptive statistics and ANOVA tests to assess waste generation differences across sales locations. The findings indicate significant fluctuations in plantation areas and production, with Kampar district leading in both categories. High waste generation rates underscore the need for improved management strategies. Although consumer surveys show awareness of waste issues, practical implementation lags. This research provides insights into optimizing durian production and waste management, aiming to balance economic benefits with environmental sustainability in Riau Province.

Formulasi Sediaan Sabun Cair Cuci Tangan Kombinasi Minyak Atsiri Daun Kemangi dan Minyak Atsiri Sereh Wangi serta Uji Aktivitas Antibakteri Dasmyta, Eny; Anwar, Yelfi; Maryana, Roni; Muryanto, Muryanto
Bioscientist : Jurnal Ilmiah Biologi Vol 12, No 2 (2024): December
Publisher : Department of Biology Education, FSTT, Mandalika University of Education, Indonesia.

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33394/bioscientist.v12i2.12512

Liquid hand soap is a cleaning product specifically designed to clean hands from dirt, oil, and microorganisms. The study aims to provide evidence of antibacterial efficacy with a combination of basil leaf essential oil and citronella essential oil on Escherichia coli and Staphylococcus aureus bacteria in hand washing liquid soap formulations. The type of research used is experimental. Essential oils were analyzed by GC-MS and then through formulation as hand washing liquid soap with each concentration of 1%, 1.5%, and 2%. The test results were evaluated, and analyzed using Two Way ANOVA and Post Hoc Tukey.The results of this study showed that the GC-MS test on basil leaf essential oil showed 2 main compounds were detected, namely Estragole (55.80%) and Linalool (22.35%), while in citronella essential oil 3 main compounds were detected, namely Geraniol (26.49%), Citronellol (14.53%), and Citronellal (10.95%). And the results of antibacterial activity tests against Escherichia coli bacteria show each inhibition zone FI 9.32 mm, FII 10.72 mm, and FIII 14.45 mm. While against Staphylococcus aureus bacteria showed each inhibition zone FI 8.75 mm, FII 10.42 mm, and FIII 13.57 mm. For stability tests with temperature (2-8oC) and room temperature (20-25oC), the hand washing liquid soap formulation does not show homogeneous changes, organoleptic preparations, has a pH range of 8.87 - 9.04, has a viscosity consistency that has met the standards between 400-4000 cPs, foam height that meets the standards between 13-220 mm and does not cause irritation to the hands. In brief, the formulation is stable in both temperature (2-8oC) and room temperature (20-25oC) with strong inhibition at 2% concentration.

Effect of Aluminium Loading on SiO2/Al2O3-NiMo Catalysts Synthesized via KHP-template for Crude Palm Oil Hydrocracking Hasanudin, Hasanudin; Nakashima, Mhika; Asri, Wan Ryan; Novia, Novia; Hadiah, Fitri; Maryana, Roni; Al Muttaqii, Muhammad; Rinaldi, Nino
Bulletin of Chemical Reaction Engineering & Catalysis 2025: BCREC Volume 20 Issue 4 Year 2025 (December 2025)
Publisher : Masyarakat Katalis Indonesia - Indonesian Catalyst Society (MKICS)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.9767/bcrec.20483

The present study evaluates the catalytic activity of SiO2/Al2O3‒x and SiO2/Al2O3‒x‒NiMo (where x = 5, 10, 25 g of aluminium weight) synthesized using a potassium hydrogen phthalate (KHP) template-assisted route for the hydrocracking of crude palm oil (CPO) into biofuels. Increasing Al weight modified acidity, porosity, and NiMo dispersion, leading to distinct catalytic behavior. The optimal SiO2/Al2O3‒x‒NiMo catalyst (10 g Al) achieved ~94% conversion, dominated by jet fuel-range hydrocarbons (C10-C14) through synergistic hydrodeoxygenation and acid-catalyzed cracking-isomerization pathway. The enhanced performance originates from the balance between acidity and metal dispersion, highlighting that both template selection and Al loading govern the design of efficient SiO2/Al2O3‒NiMo catalysts for biofuel production. Copyright © 2025 by Authors, Published by BCREC Publishing Group. This is an open access article under the CC BY-SA License (https://creativecommons.org/licenses/by-sa/4.0).

Formulasi Sediaan Sabun Cair Cuci Tangan Kombinasi Minyak Atsiri Daun Kemangi dan Minyak Atsiri Sereh Wangi serta Uji Aktivitas Antibakteri Dasmyta, Eny; Anwar, Yelfi; Maryana, Roni; Muryanto, Muryanto
Bioscientist : Jurnal Ilmiah Biologi Vol. 12 No. 2 (2024): December
Publisher : Department of Biology Education, FSTT, Mandalika University of Education, Indonesia.

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33394/bioscientist.v12i2.12512

Liquid hand soap is a cleaning product specifically designed to clean hands from dirt, oil, and microorganisms. The study aims to provide evidence of antibacterial efficacy with a combination of basil leaf essential oil and citronella essential oil on Escherichia coli and Staphylococcus aureus bacteria in hand washing liquid soap formulations. The type of research used is experimental. Essential oils were analyzed by GC-MS and then through formulation as hand washing liquid soap with each concentration of 1%, 1.5%, and 2%. The test results were evaluated, and analyzed using Two Way ANOVA and Post Hoc Tukey.The results of this study showed that the GC-MS test on basil leaf essential oil showed 2 main compounds were detected, namely Estragole (55.80%) and Linalool (22.35%), while in citronella essential oil 3 main compounds were detected, namely Geraniol (26.49%), Citronellol (14.53%), and Citronellal (10.95%). And the results of antibacterial activity tests against Escherichia coli bacteria show each inhibition zone FI 9.32 mm, FII 10.72 mm, and FIII 14.45 mm. While against Staphylococcus aureus bacteria showed each inhibition zone FI 8.75 mm, FII 10.42 mm, and FIII 13.57 mm. For stability tests with temperature (2-8oC) and room temperature (20-25oC), the hand washing liquid soap formulation does not show homogeneous changes, organoleptic preparations, has a pH range of 8.87 - 9.04, has a viscosity consistency that has met the standards between 400-4000 cPs, foam height that meets the standards between 13-220 mm and does not cause irritation to the hands. In brief, the formulation is stable in both temperature (2-8oC) and room temperature (20-25oC) with strong inhibition at 2% concentration.

Coconut Shell Waste Treatment Technology for A Sustainable Waste Utilization: A Case Study of the SMEs in Bohol Village, Indonesia Rizal, Wahyu Anggo; Suryani, Ria; Maryana, Roni; Prasetyo, Dwi Joko; Pratiwi, Diah; Ratnawati, Yuli Ary; Ariani, Dini; Suwanto, Andri
ASEAN Journal of Community Engagement Vol. 6, No. 2
Publisher : UI Scholars Hub

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This project focused on the introduction of liquid smoke and bio briquette manufacturing technology to small and medium enterprises (SMEs) located in Bohol Village, Gunungkidul, Indonesia through technology transfer, training, and mentoring. These SMEs are engaged in the food business with the main product jenang ketan, a traditional food from Gunungkidul, especially in Rongkop District, and very popular among communities around and outside Gunungkidul. The traditional preparation of jenang ketan produces several by-products in the form of waste, which is dominated by coconut shell biomass. The project’s technology transfer was carried out through the procurement of a series of pyrolysis reactors, distillation reactors, grinder machines, mixer machines, and briquette press machines for SMEs. Afterwards, the training was performed through teaching and practice of SMEs with a focus on the pyrolysis process, bio-briquette process, distillation, application of liquid smoke and bio-briquette, and marketing techniques. The activity was conducted within a period of one-year; continuous mentoring was carried out for the SMEs through consultation and direct field evaluation. The result of the project revealed an increase in the knowledge of SME personnel in the processing of coconut shells waste to produce liquid smoke and bio-briquette and the capability of SMEs to produce their own liquid smoke and briquette.

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