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All Journal Jurnal Produksi Tanaman Jurnal Pendidikan dan Pemberdayaan Masyarakat Science and Technology Indonesia Jurnal Ilmiah Teknik Kimia Molekul: Jurnal Ilmiah Kimia International Journal of Renewable Energy Development Bulletin of Chemical Reaction Engineering & Catalysis
Joni Prasetyo, Joni
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Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Control & Systems Engineering Earth & Planetary Sciences Education Electrical & Electronics Engineering Energy Engineering Environmental Science Materials Science & Nanotechnology Physics

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Phytoestrogens Therapy for Osteoporosis Treatment Using Indonesian Medicinal Plants: A Brief Review Sianipar, Rut Novalia Rahmawati; Iswantini, Dyah; Charlena, Charlena; Wahyudi, Setyanto Tri; Prasetyo, Joni
Science and Technology Indonesia Vol. 9 No. 4 (2024): October
Publisher : Research Center of Inorganic Materials and Coordination Complexes, FMIPA Universitas Sriwijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26554/sti.2024.9.4.949-964

Abstract

A problematic bone remodeling cycle is known to produce more osteoclasts than osteoblasts, making bones more fragile and this condition shows osteoporosis. In this context, estrogen deficiency in the human body is associated with the regulation of osteoporosis. Therefore, this study aimed to investigate the knowledge about basic concepts of bone, osteoporosis, phytoestrogens, and Indonesian medicinal plants for osteoporosis treatment. Data were obtained from literature on various databases including Science Direct, Wiley Online Library, Scopus, Pubmed, and Google Scholar. Adequate therapy is needed to increase estrogen content and an effective approach is to consume medicinal plants that contain phytoestrogens, which have identical structure and activity to human estrogen (17β-estradiol). The results showed that there were observations comprising in vitro, in vivo, and in silico studies on 18 Indonesian medicinal plants as antiosteoporosis treatments. The Leguminosae or Fabaceae family, which has a significant amount of isoflavones (the primary group of phytoestrogens) was found to dominate as an antiosteoporosis agent. Therefore, the development of phytoestrogens therapy from Indonesian medicinal plants must be implemented for the future treatment of osteoporosis.
Catalytic Hydroconversion of Lauric Acid Over Poly(N-vinyl-2-pyrrolidone)-Coated Pd Nanoparticles on ZIF-8 Dahnum, Deliana; Ramadhita, Holanda; Andreas, Andreas; Prasetyo, Joni; Bakti, Aditia Nur; Dang, Huyen Tran
Bulletin of Chemical Reaction Engineering & Catalysis 2024: BCREC Volume 19 Issue 1 Year 2024 (April 2024)
Publisher : Masyarakat Katalis Indonesia - Indonesian Catalyst Society (MKICS)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.9767/bcrec.20114

Abstract

A subclass of Metal-Organic Frameworks, Zeolitic Imidazole Frameworks-8 (ZIF-8) is known as an emerging material that has the characteristic of a large surface area, good thermal stability as well as a high porosity. Instead of having extraordinary properties, ZIF-8 consists of Lewis acid and Lewis base site on its Zn metals and 2-methylimidazole which are the important components for the catalyst. In this study, Pd-Poly(N-vinyl-2-pyrrolidone) coated on ZIF-8 (Pd-PVP@ZIF-8) was synthesized by mixed Pd-PVP solution and ZIF-8 precursors at room temperature. The Pd-PVP solution was varied from 10 to 50 ml to differentiate the Pd concentration in ZIF-8. As-synthesized 50 ml of Pd-PVP on ZIF-8 (50Pd-PVP@ZIF-8) showed catalytic activity in the conversion of 98.6% lauric acid to produce 78.2% of 1-dodecanol at optimum condition 320 °C for 6 h. The synergy between Pd-PVP as metal and ZIF-8 as metal support as well as high dispersion of Pd particles could enhance performance in the conversion of lauric acid. 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).
Utilization of Used Cooking Oil from Street Vendor: Recycle and Anti-Oxidant Enrichment with Moringa oleifera leaves Ismet, Rhahmasari; Sianipar, Rut Novalia Rahmawati; Adelia, Nesha; Filaila, Euis; Jovianto, Andrian; Firdaus, Ridwan; Hanifah, Hanifah; Dwiastuti, Rahma; Aninda, Yunita; Alfiona, Della; Akmalina, Rifkah; Iswantini, Dyah; prasetyo, Joni
Molekul Vol 19 No 3 (2024)
Publisher : Universitas Jenderal Soedirman

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20884/1.jm.2024.19.3.11023

Abstract

Used cooking oil (UCO) is abundant in Indonesia because of lifestyle of people. Especially UCO from street vendors had very low quality based on its Free Fatty Acid (FFA) content that reached 5.074%. When UCO was deposed into drainage, it would pollute the environment. Low grade UCO from street vendors contained Unsaturated-Fatty-Acid, Saturated-Fatty-Acid, and other hydrocarbons. Recycling UCO to replace edible oil considered more desirable rather than biodiesel since higher added value. FFA was the most undesired compound affecting cooking oil quality. FFA reducing with diluted 0.1 M NaOH 10% v/v could reduce FFA from 5.07% to 0.53%. Bleaching earth (BE) content mostly Si, Nb, Al, Ca and Na was safe to treat UCO for edible cooking oil. BE played cleaning UCO but absorbed the oil 17%. ANOVA analysis for BE and Moringa oleifera leaves (MOL) treatment fits with Reduced Quadratic model. Based on the ANOVA, the model showed that the decrease of FFA was determined significantly by BE amount and temperature with P-values less than 0.05. Optimization for BE treatment was done using Response Surface Method to find out the lowest FFA. And based on the simulation, it was obtained 0.2854% while the experimental results showed 0.2908%. Furthermore, BE combined with Moringa oleifera leaves (MOL) that known anti-oxidant source was used to treat UCO. UCO originally content stronger anti-oxidant activity rather fresh palm oil with IC50 62.12 and 83.03 mg/kg, respectively. Stronger anti-oxidant in UCO allegedly derived from fried foods. Treatment 10% BE and 5% MOL considered optimal for good appearance edible oil, little yellow greenish. Moreover, GC/MS analysis showed improvement active compounds in treated UCO with 5, 7.5 and 10 g MOL in 150 ml UCO with 24.36%, 30.32% and 37.76% active compounds, respectively. Moreover, anti-oxidant measured with IC50 the treated UCO were 43.18, 42.33 and 41.78 mg/kg, respectively. Increasing the number of MOL did not significantly increase the anti-oxidant activity. Anti-oxidant detected in treated UCO identified such as ethyl acridine, indolizine derivatives, cyclotrisiloxane-hexamethyl, benzimidazoles, and Fumaric acid. Based on the results, UCO recycling is applicable for a community, save expenses and strengthen food security and food sovereign. Further thought for its implementation is to design an integrated system from collecting UCO in a reservoir tank equipped with filter, recycling process and finally product tank at mini plant scale. Keywords: Anti-oxidant enrichment, bleaching earth, edible treated UCO, Moringa oleifera leaves (MOL) , UCO recycle
Catalytic Performance of Cu-Ni supported on Rice Husk Ash-derived SiO2 for the Hydrogenation of Ethylene Carbonate to Ethylene Glycol Maharani, Najiah Sephia; Rahmawati, Novia Dwi; Aziz, Isalmi; Maryati, Yati; Agustian, Egi; Widjaya, Robert Ronal; Yati, Indri; Prasetyo, Joni; Rinaldi, Nino; Dwiatmoko, Adid Adep
Bulletin of Chemical Reaction Engineering & Catalysis 2025: BCREC Volume 20 Issue 1 Year 2025 (April 2025)
Publisher : Masyarakat Katalis Indonesia - Indonesian Catalyst Society (MKICS)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.9767/bcrec.20336

Abstract

Ethylene glycol, a crucial compound extensively utilized in solvents, coolants, antifreeze, polyester fiber production, and as a natural gas-drying agent, can be synthesized via the hydrogenation of ethylene carbonate. In this study, the synthesis, characterization, and catalytic performance of Cu-Ni/SiO2 catalysts for this reaction, utilizing silica (SiO2) derived from rice husk ash, were investigated. Silica was impregnated with copper (Cu) and nickel (Ni) by varying the weight ratio (Cu:Ni = 10, 7:3, 3:7, 10) to prepare bimetallic catalysts. X-ray Diffraction (XRD) analysis confirmed the presence of both Cu and Ni phases in all the catalysts. The 3Cu7Ni/SiO2 catalyst displayed the lowest reduction temperature and the largest surface area (257.97 m²/g). The 7Cu3Ni/SiO2 catalyst exhibited the highest acidity (1.91 mmol/g) and superior metal dispersion, as confirmed by the Field Emission Scanning Electron Microscopy - Energy Dispersive X-Ray (FE-SEM-EDX) analysis. Catalytic activity was evaluated in a batch reactor under 40 bar H2 pressure at 150 °C for 3 h with a catalyst-to-ethylene carbonate ratio of 5:1. Among the catalysts examined, the 7Cu-3Ni/SiO2 composition demonstrated the highest catalytic performance, achieving 15.14% conversion of ethylene carbonate and 80.51% selectivity towards ethylene glycol. 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).
Aluminum, nickel, and manganese supported on bentonite for conversion of ethanol to gasoline Rahmanda, Deri; Wardhani, Sri; Andayani, Ulfa; Widjaya, Robert R.; Dwiatmoko, Adid A.; Rinaldi, Nino; Prasetyo, Joni; Kurniawan, Kezia F.
International Journal of Renewable Energy Development Vol 14, No 2 (2025): March 2025
Publisher : Center of Biomass & Renewable Energy (CBIORE)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61435/ijred.2025.60834

Abstract

The potential of bentonite as a catalyst is rapidly growing, isomorphic substitution in its interlayer allows for cation exchange and facilitates modification to enhance its catalytic properties. The catalytic performance of bentonite can be improved through the insertion of pillared clays (PILC) into its interlayer structure using Al2O3, NiO, and MnO metal oxide alloys. This research aims to develop and study a modified bentonite catalyst, focusing on its physicochemical changes,as well as its activity and selectivity in the conversion of ethanol to biogasoline. The synthesis of oxide pillars on bentonite was carried out at a consistent metal/bentonite mole ratio of 10 mmol/g, with a mixed metal composition of 1:1. The results showed anexpansion of interlayer distance, as measured by X-ray diffraction (XRD), which increased in all catalysts compared to natural bentonite6,350 (13.94 Å). Surface Area Analyzer (SAA) analysis, revealed that Al/Bentonite exhibited the highest surface area at187.84 m2/g. Total acidity  analyzed, using Temperature Programmed Desorption-Ammonia (TPD-NH3), was found to be 2.33 mmol/g, with Al-Ni/Bentonite showing the highest acidity. Thermal stability, tested throughThermogravimetric Analysis (TGA), indicated that catalysts containing Al and Ni demonstrated the highest stability. The catalytic activity test showed that the Al/bentonite catalyst achieved the highest ethanol conversion rate of68.64% and a catalyst selectivity of 51.70%, as determined byGas Chromatography-Flame Ionized Detector (GC-FID) analysis. These results indicate that the pillarization of bentonite with Al2O3, NiO, and MnO oxides significantly improved its physicochemical properties, activity, and selectivity in the catalytic conversion of ethanol to biogasoline compared to natural bentonite.
KOH Activated-Biochar from Oil Palm Solid Wastes Via Pyrolysis for Energy Storage Application Murti, Galuh Wirama; Rahmawati, Nurdiah; Valentino, Novio; Hikmat, Hikmat; Firmandoko, Bagus Alif; Dwiratna, Bralin; Bangun, Herson; Prasetyo, Joni
Jurnal Ilmiah Teknik Kimia Vol. 8 No. 1 (2024): JURNAL ILMIAH TEKNIK KIMIA
Publisher : Program Studi Teknik Kimia, Universitas Pamulang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32493/jitk.v8i1.37710

Abstract

As the leading exporter of the oil palm in the world, Indonesia has an environmental issue regarding to the increasing oil palm solid wastes. In order to utilize this lignocellulosic wastes into an inexpensive supply of carbon-based material, biochar from empty fruit bunch (EFB), palm kernel shell (PKS), oil palm frond (OPF), and oil palm trunk (OPT) was produced via slow pyrolysis with KOH as activation agent. The slow pyrolysis was conducted with a temperature of 600oC, a heating rate of 10oC/min, held for 30 min, and atmospheric pressure. This study examines the physico-chemical characterization of all oil palm solid wastes and biochars by using ultimate analysis, water and ash content, Fourier Transform Infrared (FTIR) spectrometer, surface area using Brunauer-Emmet-Teller (BET), and surface morphology using Scanning Electron Microscope (SEM). The higher biochar yields were obtained by PKS and EFB with 30% and 35.79% which have a higher ash content, lignin content, and residual solid char. OPT and PKS biochars exhibit high surface area (467.49 m2/g and 386.85 m2/g) with a high carbon content of 75.64% and 70.22%, respectively. Electrochemical performances of OPT and PKS biochar were also evaluated and the cyclic voltammogram showed the response of current to potential. The results of OPT and PKS biochars had shown a promising raw materials as bio-carbon black which have a well-developed structure of morphology, high surface area, and high carbon content.  
Kajian Kerapatan Penanaman Kedelai (Glycine max L.) pada Tumpangsari dengan Semangka (Citrullus vulgaris) Prasetyo, Joni; Tyasmoro, Setyono Yudo
Produksi Tanaman Vol. 6 No. 10 (2018)
Publisher : Jurusan Budidaya Pertanian Fakultas Pertanian Universitas Brawijaya

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

Abstract

Jarak tanam semangka sangat lebar bila dibandingkan dengan tanaman semusim pada umumnya. Jarak tanam yang lebar tersebut, sangat berpotensi untuk penanaman tumpangsari. Konsumsi kedelai penduduk Indonesia sangat tinggi, namun kemampuan produksi dalam negeri saat ini rendah. Oleh karena itu, pada penelitian ini dilakukan penanam kedelai di sela semangka. Tujuan dari penelitian ini adalah mempelajari pengaruh penanaman kedelai pada tumpangsari dengan semangka terhadap produksi kedelai dan semangka, serta nilai nisbah kesetaraan lahannya. Selain itu, juga mempelajari kerapatan tanaman kedelai yang sesuai untuk ditanam di selah jarak tanam semangka. Penelitian ini dilaksanakan di Desa Mrican, Kecamatan Mojoroto, Kota Kediri pada bulan Februari sampai Mei 2017. Penelitian menggunkan rancangan acak kelompok (RAK) yang terdiri dari 6 taraf perlakuan dan 4 ulangan. Hasil penelitian menunjukkan bahwa perlakuan tumpangsari dengan kedelai dapat mempengaruhi produksi semangka pada pengamatan bobot buah. Nilai NKL paling tinggi ada pada P5 dengan nilai 1,24. Oleh karena itu, penanaman menggunakan 4 lubang tanam kedelai dengan 2 benih per lubang tanam (P4) paling sesuai ditanam disela jarak tanam semangka karena nilai R/C rasio dan B/C rasio paling tingggi, serta nilai NKL P4 juga tidak berbeda nyata dengan P5 yang memiliki nilai NKL paling tinggi.
Influence of Nickel and Aluminum in Bentonite for Ethanol-to-Gasoline Reaction Widjaya, Robert Ronal; Siregar, Yusraini D. I.; Nabillah, Syifa H.; Rinaldi, Nino; Simanungkalit, Sabar P.; Prasetyo, Joni; Dwiatmoko, Adid Adep
Bulletin of Chemical Reaction Engineering & Catalysis 2026: BCREC Volume 21 Issue 1 Year 2026 (April 2026)
Publisher : Masyarakat Katalis Indonesia - Indonesian Catalyst Society (MKICS)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.9767/bcrec.20502

Abstract

Bentonite can be used as a catalyst due to its flexible structure. However, it has several drawbacks, including low thermal and hydrothermal stability, as well as a small surface area and pore volume. This study aims to modify the structure of bentonite using the pillared clay (PILC) method, in order to improve its physicochemical properties and catalytic activity. The bentonite was pillared with aluminium (Al/PILC), nickel (Ni/PILC), and a combination of both metals (Al-Ni/PILC). Catalyst characterization was carried out using X-Ray Diffraction (XRD), X-Ray Fluorescence (XRF), Surface Area Analyzer (SAA), Fourier Transform Infrared Spectroscopy (FTIR), Temperature Programmed Desorption of Ammonia (TPD-NH₃), Thermogravimetric Analysis-Differential Scanning Calorimetry (TGA-DSC), and Gas Chromatography with Flame Ionization Detection (GC-FID). XRD analysis showed an increase in the interlayer spacing, the largest basal spacing is observed in Al/PILC. XRF results indicated an increase in the composition of Al₂O₃ and NiO in all four catalysts. SAA analysis demonstrated an increase in surface area and pore volume across the catalysts, the highest surface area is exhibited by Al/PILC (187.83 m2/g), while the largest pore diameter is observed in Al-Ni/PILC (12.83 nm). The acidity analysis using TPD-NH₃ shows that Al/PILC possesses the highest acidity value of 2.34 mmol/g. The presence of Brønsted acid sites was confirmed through FTIR analysis. TGA-DSC analysis indicated an improvement in the thermal stability of all tested catalysts. The Al/PILC catalyst showed the best performance at 150 °C. When the reaction temperature was increased to 250 °C, the Al-Ni/PILC catalyst demonstrated the highest efficiency in the ethanol-to-gasoline conversion process. Copyright © 2026 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).
Assessing the Effectiveness of the Desa Prima Program in Empowering Women Economically Prasetyo, Joni; Komariah, Kokom
JPPM (Jurnal Pendidikan dan Pemberdayaan Masyarakat) Vol. 12 No. 2 (2025): November 2025
Publisher : Departement of Nonformal Education, Graduate Scholl of Universitas Negeri Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21831/jppm.v12i2.88829

Abstract

This study aims to evaluate the implementation of the Desa Prima Program as a form of productive economic empowerment for women in Wedomartani Village, Sleman Regency, using the CIPP evaluation model (Context, Input, Process, Product). The research was conducted over three months, from October 2024 to January 2025. It was aligned with the program’s schedule to ensure the collected data would be both representative and current. The research subjects included 28 women who were active participants in the Desa Prima Program and program administrators who served as key informants. This study employed a formative evaluation design using a mixed-methods approach, combining qualitative methods (in-depth interviews, observations, and documentation) with quantitative methods (questionnaires). The research instruments were developed based on the indicators of the CIPP model and were validated through expert judgement and source triangulation. Qualitative data were analyzed thematically, while quantitative data were analyzed using descriptive statistics based on a Likert scale to determine the mean scores and percentages for each evaluation aspect. The results show that, in terms of context, the program was deemed highly relevant to women’s economic needs (84.8%), with the majority of participants having no prior income (80.4%). Regarding input, the training facilities were considered adequate (81.3%), and the participant selection process was viewed as fair (82.1%), although the distribution of tools and availability of mentoring remained limited. In the process aspect, the training was participatory, with facilitator attendance rated relatively high (79.5%) and mentoring experienced by 77.7% of participants; however, a formal evaluation system was lacking. In terms of product, 60.7% of participants reported an increase in income, 57.1% continued to run their businesses, and all participants (100%) expressed a desire for the program to continue. The program has shown early positive impacts in promoting women’s economic independence, although further institutional strengthening, legal business access, and cross-sectoral sustainability strategies are still needed. Keywords: women empowerment, evaluation, Desa Prima, productive economy, CIPP model
Co-Authors Adelia, Nesha Aditia Nur Bakti Akmalina, Rifkah Alfiona, Della Andreas Andreas Aninda, Yunita Bangun, Herson Charlena Dahnum, Deliana Dang, Huyen Tran Dwiastuti, Rahma Dwiatmoko, Adid A. Dwiatmoko, Adid Adep Dwiratna, Bralin Dyah Iswantini Egi Agustian Euis Filaila Firdaus, Ridwan Firmandoko, Bagus Alif hanifah hanifah Hikmat Hikmat, Hikmat Isalmi Aziz Ismet, Rhahmasari Jovianto, Andrian Kokom Komariah Kurniawan, Kezia F. Maharani, Najiah Sephia Murti, Galuh Wirama Nabillah, Syifa H. Nino Rinaldi Novia Dwi Rahmawati Rahmanda, Deri Rahmawati, Nurdiah Ramadhita, Holanda Setyanto Tri Wahyudi Setyono Yudo Tyasmoro Sianipar, Rut Novalia Rahmawati Simanungkalit, Sabar P. Siregar, Yusraini D. I. Sri Wardhani Ulfa Andayani, Ulfa Valentino, Novio Widjaya, Robert R. Widjaya, Robert Ronal Yati Maryati yati, indri