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All Journal Journal of Mathematical and Fundamental Sciences BioWallacea Journal of Biological Research KOVALEN: Jurnal Riset Kimia Indonesian Journal of Chemistry GERVASI: Jurnal Pengabdian kepada Masyarakat JKPK (Jurnal Kimia dan Pendidikan Kimia) Dimasejati: Jurnal Pengabdian Kepada Masyarakat International Journal Of Science, Technology & Management (IJSTM) Jurnal Mandala Pengabdian Masyarakat
Muhamad Jalil Baari
Department Of Chemistry, Faculty Of Science And Technology, Universitas Sembilanbelas November Kolaka, Jl. Pemuda, Kolaka 93511, Indonesia
Aerospace Engineering Agriculture, Biological Sciences & Forestry Humanities Astronomy Automotive Engineering Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Earth & Planetary Sciences Education Electrical & Electronics Engineering Energy Engineering Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Mathematics Mechanical Engineering Physics Public Health Social Sciences Transportation Veterinary Other

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Uji Toksisitas Ekstrak Metanol Etlingera calophrys Dengan Metode Brine Shrimp Lethality Test (BSLT) Megawati Megawati; Muhamad Jalil Baari; Carla Wulandari Sabandar
BioWallacea : Jurnal Penelitian Biologi (Journal of Biological Research) Vol 8, No 2 (2021): Biodiversitas Wallacea
Publisher : University of Halu Oleo

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (588.681 KB)

Abstract

Pada penelitian ini, dilakukan skrining fitokimia utuk menganalisis kandungan metabolit sekunder/senyawa aktif dalam ekstrak metanol bagian-bagian tumbuhan Etlingera calophrys yang meliputi daun, buah, batang, dan rimpang, yang dilanjutkan dengan pengujian aktivitas sitotoksisitasnya. Skrining fitokimia dilakukan untuk memastikan adanya kandungan senyawa aktif, sedangkan uji sitotoksisitas dilakukan dengan metode Brine Shrimp Lethality Test menggunakan larva Artemia salina. hasil skrining menunjukkan adanya senyawa alkaloid, flavonoid, fenolik, terpenoid/steroid, dan saponin yang tersebar di seluruh bagian Etlingera calophrys dengan bagian batang mengandung paling banyak senyawa metabolit sekunder. Sementara itu, berdasarkan hasil analisis sitotoksisitas, diketahui nilai LC50 pada jaringan daun, buah, batang, dan rimpang masing masing yaitu 65.2 ± 8.9 ppm, 65.7 ± 6.4 ppm, 132.3 ± 12.8 ppm, dan 84.1 ± 10.3 ppm. Hasil tersebut menunjukkan bahwa Etlingera calophrys berpotensi sebagai antioksidan/antikanker alami sekaligus menjadi pilihan alternatif obat di masa yang akan datang.
Synthesis of Oligosuccinimide and Evaluation of Its Corrosion Inhibition Performance on Carbon Steel in CO2-Saturated 1% NaCl Solution Muhamad Jalil Baari; Bunbun Bundjali; Deana Wahyuningrum
Journal of Mathematical and Fundamental Sciences Vol. 52 No. 2 (2020)
Publisher : Institute for Research and Community Services (LPPM) ITB

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5614/j.math.fund.sci.2020.52.2.5

Abstract

Oligosuccinimide (OSI) is an oligomer with several repeating units of succinimide. In this study, OSI was synthesized by thermal condensation between maleic anhydride and ammonium carbonate. The chemical structure of the synthesized compound was confirmed by FTIR and NMR spectroscopy as well as LC-MS characterization. Evaluation of its performance as corrosion inhibitor and the adsorption mechanism on a carbon steel surface in CO2-saturated 1% (w/v) NaCl solution was performed using electrochemical techniques (electrochemical impedance spectroscopy (EIS) and potentiodynamic polarization) and weight-loss methods. These tests were simultaneously carried out for all fractions without separation. The EIS results showed that the inhibition efficiency (IE) of the OSI increased with increasing concentration but decreased at higher temperatures. The potentiodynamic polarization data indicated that the OSI acted as a mixed inhibitor. Adsorption of OSI on the carbon steel generally obeys the Langmuir adsorption isotherm according to curve linearity, which relates the degree of surface coverage to the inhibitor concentration. The standard Gibbs free energy of the adsorption values (∆G° ads) were negative within the range of -33.14 to -38.73 kJ.mol-1, which indicates the spontaneity of the adsorption process on the carbon steel surface and that OSI molecules interacted with the carbon steel through semi-physisorption.
A Review on Expired Drug-Based Corrosion Inhibitors: Chemical Composition, Structural Effects, Inhibition Mechanism, Current Challenges, and Future Prospects Muhamad Jalil Baari; Carla Wulandari Sabandar
Indonesian Journal of Chemistry Vol 21, No 5 (2021)
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/ijc.64048

Abstract

This comprehensive review highlighted how the expired drugs manage corrosion reactions on metal/alloy surfaces, especially types of carbon/mild steel, Sabic iron, copper, and aluminium in NaCl or acid solution. Several types of expired drugs and the optimum conditions presented in this review were summarized from relevant studies. The performance of expired drugs which covers inhibition efficiency, inhibition mechanisms, and metal surface analysis was informed. The contribution of the chemical composition, molecular structure, compatible treatment conditions, and some corrosion analysis methods were mentioned. Current challenges and future prospects were also discussed for further investigations and developments to obtain superior inhibitors and save the environment.
Performance of N,O-Carboxymethyl Chitosan as Corrosion and Scale Inhibitors in CO2 Saturated Brine Solution Muhamad Jalil Baari; Bunbun Bundjali; Deana Wahyuningrum
Indonesian Journal of Chemistry Vol 21, No 4 (2021)
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/ijc.64255

Abstract

The presence of salts and dissolved gas like CO2 that is carried with natural gas and crude oil along the pipeline is the main reason for corrosion and scale formation. These problems are usually resolved separately by corrosion inhibitors and scale inhibitors or acidification. Meanwhile, utilizing a compound to resolve both corrosion and scale formation has an advantage in the economic side and working time. N,O-carboxymethyl chitosan or N,O-CMCs is one of the chitosan's derivates. It is water-soluble and has different functional groups. Those properties support its capability as a complexing agent on corrosion and scale inhibitors. Synthesis of N,O-CMCs was carried out by chemical reactions between chitosan and chloroacetic acid under alkaline circumstances. N,O-CMCs product was characterized using FT-IR and 1H-NMR spectroscopy. The inhibition efficiency was analyzed by electrochemical impedance spectroscopy (EIS) and potentiodynamic polarization techniques. The measurements showed that the highest efficiency of corrosion inhibition reached 63.54% when the concentration and temperature were 30 ppm and 35 °C, respectively. N,O-CMCs was classified as a mixed-type inhibitor. The adsorption mechanism of the inhibitor followed Langmuir adsorption isotherm. The static scale inhibition test informed that the optimum inhibition efficiency of N,O-CMCs reached 60.00%.
Fabrication of Chitosan/Fe3O4 Nanocomposite as Adsorbent for Reduction Methylene Blue Contents La Harimu; Sri Wahyuni; Nasrudin Nasrudin; Muhamad Jalil Baari; Dian Permana
Indonesian Journal of Chemistry Vol 22, No 3 (2022)
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/ijc.65430

Abstract

Methylene blue (MB) is a dye in wastewater from textile industries that pollutes the water environment. Reduction of its content is necessary for protecting humans and the surrounding environment. This study fabricated chitosan/Fe3O4 nanocomposite through the mixture of chitosan from crab shell waste and magnetite (Fe3O4) from local sand iron with sodium tripolyphosphate (STPP)-sulfate crosslinker as an adsorbent to reduce methylene blue content. The obtained composite was characterized by Fourier Transform Infrared (FTIR) Spectrophotometer and X-Ray Diffraction (XRD) instrument. The contents of methylene blue before and after applying adsorbent-based nanocomposite were determined using an ultraviolet-visible (UV-Vis) spectrophotometer. FTIR characterization results show that chitosan and chitosan/Fe3O4 nanocomposite had successfully synthesized based on the typical vibrational peaks. The deacetylation degree of chitosan was 69.79%. Fe3O4, and chitosan/Fe3O4 nanocomposite, were confirmed by XRD patterns. The chitosan/Fe3O4 nanocomposite adsorption capacity reached 45.37 mg/g when adsorption occurred with 20 mg adsorbent, pH 9, and contact time of 1.5 h. Hence, the chitosan/Fe3O4 nanocomposite in this study has potency and is applicable to adsorb MB effectively.
Application of Carbon Dots as Corrosion Inhibitor: A Systematic Literature Review Muhamad Jalil Baari; Ravensky Yurianty Pratiwi
Indonesian Journal of Chemistry Vol 22, No 5 (2022)
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/ijc.72327

Abstract

Corrosion is spontaneity and unavoidable reactions which cause degradation in the quality of the materials. Most industries have been harmed by the corrosion of manufacturing equipment. Several methods can be applied to control this problem. The use of corrosion inhibitors is an effective and practical way to decrease metal deterioration significantly. Many commercial inorganic and organic compounds are effective inhibitors, but most of them are not completely safe and relatively expensive. Carbon dots and their derivatives are potential compounds for resolving corrosion reactions on metal surfaces. Carbon dots can be synthesized from various natural sources to be more environmentally friendly. This systematic review aims to summarize the concept of corrosion, types of carbon dots-based corrosion inhibitor and their effectiveness on various metals, inhibition mechanism, surface analysis of the protected metals, kinetics, thermodynamics, and quantum computational chemistry studies. This review also presents the significance and the prospects of carbon dots-based corrosion inhibitors.
Inventarisasi dan Penanaman Bibit Tanaman Obat Bagi Masyarakat di Kelurahan Mangolo, Kabupaten Kolaka Carla Sabandar; Muh. Syahruddin; Rina Rembah; Harni Sartika Kamaruddin; Retno Wahyuningrum; Evodius Nasus; Abdul Gani Baeda; Rizki Kumalasari; Megawati Megawati; Muhamad Jalil Baari; Ica Aprilia Seleng; Khafidzah Yusuf; Muh. Ansar Azali; Muhammad Rayzhal Faturahman; Nun Ainun Arap; Nur Afifa; Nurliana Nurliana; Rezkiya Nur Insani; Rina Hardianti Pratiwi; Sri Gita Handayani; Susianti Susianti; Wahyuni Hakim; Yayang Rahmadani
Jurnal Mandala Pengabdian Masyarakat Vol. 3 No. 2 (2022): Jurnal Mandala pengabdian Masyarakat
Publisher : Progran Studi Farmasi STIKES Mandala Waluya

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1238.09 KB) | DOI: 10.35311/jmpm.v3i2.78

Abstract

Pemanfaatan tanaman obat secara tradisional oleh masyarakat Kolaka telah berlangsung selama turun-temurun. Namun, hingga saat ini upaya pembinaan asuhan mandiri pemanfaatan taman obat keluarga masih belum giat dilakukan. Sebagai langkah awal program pembinaan, pengabdian ini bertujuan untuk melakukan inventarisasi tanaman obat dan penanaman bibit tanaman obat yang digunakan oleh masyarakat di Kelurahan Mangolo yang secara geografis merupakan wilayah taman wisata alam Kolaka. Kegiatan yang dilakukan meliputi survei potensi wilayah, identifikasi permasalahan, koordinasi dan perizinan, inventarisasi tanaman obat, pelatihan pembuatan pupuk alami, perbanyakan bibit dan pemeliharaan tanaman obat, penanaman bibit secara serentak, monitoring, dan evaluasi kegiatan. Kegiatan pengabdian menghasilkan inventarisasi tanaman obat sebanyak 49 tanaman dan penanaman bibit tanaman obat sebanyak 297 bibit oleh masyarakat Kelurahan Mangolo. Melalui kegiatan ini, masyarakat memperoleh pengetahuan, keterampilan, dan motivasi untuk membudidayakan tanaman obat secara mandiri dan berkelanjutan sebagai wujud kesadaran terhadap kesehatan bagi diri sendiri dan keluarga.
Studi Pemanfaatan Limbah Cair Ikan dan Udang sebagai Substrat dalam Produksi Listrik pada Sistem Microbial Fuel Cell (MFC): Study of Utilization of Fishery and Shrimp Wastewater as Substrate in Electricity Production in Microbial Fuel Cell (MFC) System Alfiah Alif; Muhamad Jalil Baari; Amalyah Febryanti
KOVALEN: Jurnal Riset Kimia Vol. 8 No. 3 (2022): December Edition
Publisher : Chemistry Department, Mathematics and Natural Science Faculty, Tadulako University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22487/kovalen.2022.v8.i3.16033

Abstract

Microbial fuel cell (MFC) is a technology that utilizes bacteria in organic medium that can convert chemical energy into electrical energy. This technology can be used to treat fishery waste and shrimp waste which is rich in organic matter. This study aimed to measure the performance of the MFC system on fishery wastewater and shrimp wastewater as a means of producing bio-electricity while reducing the waste load. This study used different types of electrodes, including zinc, aluminum, copper, and carbon graphite. This technology used 0.2 M KMNO4 electrolyte solution. The research method includes three stages; production of fishery wastewater and shrimp wastewater, assembly of a dual chamber MFC bioreactor, and measurement of waste electrical energy produced. The value of electricity production with the highest average in fishery wastewater was obtained by adding electrolyte solution to the Zn/Cu electrode during 117 hours of observation were 6.86 mA with a potential difference of 1.469 V meanwhile in shrimp wastewater was obtained by adding electrolyte solution to the Al/Cu electrode were 4.38 mA with a potential difference of 1.335 V.This study can be concluded that higher electricity production is obtained from the utilization of fish wastewater using Zn/Cu electrode.
1H and 13C NMR Study of Oligosuccinimide Prepared by Thermal Condensation and Evaluation of Its Scale Inhibition Muhamad Jalil Baari; Megawati Megawati; Didi Prasetyo Benu
JKPK (Jurnal Kimia dan Pendidikan Kimia) Vol 7, No 3 (2022): JKPK (Jurnal Kimia dan Pendidikan Kimia)
Publisher : Program Studi Pendidikan Kimia FKIP Universitas Sebelas Maret

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20961/jkpk.v7i3.65666

Abstract

The presence of scale is a serious problem in the petroleum industry, and some efforts should be made to control scale formation. Oligosuccinimide (OSI) is an oligomer with several repeating units of succinimide. The structure of the OSI main chain and end groups has never been comprehensively analyzed. Meanwhile, OSI is potentially a scale inhibitor due to chelating properties, high polarity, and high solubility. This study investigates the molecular structure of oligosuccinimide, focusing on the main chain and end groups. Synthesis was carried out by thermal condensation between maleic anhydride and ammonium carbonate using a 1H and 13C NMR spectroscope equipped with Distortionless Enhancement by Polarization Transfer 135, Heteronuclear Multiple Quantum Coherence, and Single Quantum Coherence. The NMR analysis results detected the presence of the main chain and several synthesized OSI end groups, such as the amino, succinimide, and maleimide end groups. However, the dicarboxylic acid end group and other irregular structures, as in polysuccinimide (various synthesis methods), were not identified. It confirmed that our thermal condensation method produced OSI with less irregular structures than previous methods. Evaluation of OSI as CaCO3 and CaSO4 scales inhibitor showed reasonably good performance in very small concentrations. The inhibition efficiency was 73.20% for the CaCO3 scale with 10 mg.L-1 and 55.29% for the CaSO4 scale with 10 mg.L-1 inhibitor concentration. Analysis of thermal stability informed OSI has good thermal stability because it started to be degraded at 353.38 °C.
Performance of Sediment Microbial Fuel Cells in Generating Electricity using Fish Wastewater and Shrimp Wastewater as a Nutrient and Their Effect on Waste Quality Alfiah Alif; Muhamad Jalil Baari; Amalyah Febryanti
International Journal of Science, Technology & Management Vol. 4 No. 1 (2023): January 2023
Publisher : Publisher Cv. Inara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.46729/ijstm.v4i1.673

Abstract

Sediment Microbial Fuel Cell (MFC) is a technology that can convert chemical energy into electrical energy through the process of nutrient degradation by microbes. Sediment taken from the bottom of shrimp ponds was added as a source of microbes, while fish and shrimp wastewater were used as a source of nutrients for microbes. This study aims to measure the performance of the SMFC system on fish effluent and shrimp effluent to produce bio-electricity while reducing the waste load. The research method was experimental laboratories. The treatment given was the different types of electrodes, namely zinc-copper and aluminum-copper. In addition, 0.2 M KMnO4 electrolyte solution was used. This study consisted of four stages: the manufacture of nutrients from fish and shrimp wastewater, the manufacture of a dual chamber MFC bioreactor, the measurement of electrical values, and the analysis of waste quality. Experiments were carried out for 30 days by measuring electricity every 24 hours. The average value of electricity generated in the nutrients of fish wastewater with Zn/Cu electrodes was 0.705 V and Al/Cu was 0.472 V. Meanwhile, the average value of electricity in shrimp wastewater nutrients with Zn/Cu electrodes was 0.630 V and Al/Cu was 0.625 V. The number of colonies after adding sediment in the shrimp wastewater sample were 8.9 x 106 CFU/mL, the fish wastewater sample was 9.5 x 106 CFU/mL. It indicates the presence of microorganisms that play a role in the SMFC system
Co-Authors Abd Gani Baeda Agusriyadin, Agusriyadin Alfiah Alif Amalyah Febryanti Amalyah Febryanti Arif Prasetya Awal, Samsi Benu, Didi Prasetyo Bunbun Bundjali Bunbun Bundjali Carla Sabandar Carla Wulandari Sabandar Deana Wahyuningrum Deana Wahyuningrum Dian Permana Evodius Nasus Faradisa Anindita Gaby Nanda Kharisma Hasan Eldin Adimu Hasidu, La Ode Abdul Fajar Ica Aprilia Seleng Ilham Antariksa Kamaruddin, Harni Sartika Kamur, Sudarwin Khafidzah Yusuf L A Na’ani La Harimu Maharani Maharani Megawati Megawati Muh Syahruddin Muh. Ansar Azali Muhammad Rayzhal Faturahman Muhammad Syaiful Nasrudin Nasrudin Netty Huzniati Andas Nun Ainun Arap Nur Afifa Nurliana Nurliana Ramad Arya Fitra Ravensky Yurianty Pratiwi Retno Wahyuningrum Rezkiya Nur Insani Rina Hardianti Pratiwi Rina Rembah Rizki Kumalasari Salim Salim Sarimuddin, Sarimuddin Sri Gita Handayani Susianti Susianti Wahyuni Hakim Yayang Rahmadani