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All Journal VALENSI JURNAL KIMIA SAINS DAN APLIKASI BioWallacea Journal of Biological Research Science and Technology Indonesia ALCHEMY Jurnal Penelitian Kimia Molekul: Jurnal Ilmiah Kimia International Journal of Science Technology and Health Science and Technology: Jurnal Pengabdian Masyarakat

Handayani Hamid, Fitri

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Author-ID : 7383069

Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Computer Science & IT Economics, Econometrics & Finance Energy Engineering Environmental Science Health Professions Materials Science & Nanotechnology Physics Public Health Social Sciences Veterinary Other

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Pemanfaatan Kulit Buah Kakao sebagai Antibakteri Escherichia coli dan Staphylococcus aureus Mashuni Mashuni; La Ode Kadidae; M. Jahiding; Muh. Aksan Dermawan; Fitri Handayani Hamid
BioWallacea : Jurnal Penelitian Biologi (Journal of Biological Research) Vol 6, No 2 (2019): BioWallacea and Biotechnological Science
Publisher : University of Halu Oleo

The Cocoa pod husk (CPH) is a processed cocoa fruit waste, containing lignocellulosic biomass which can be pyrolysis to produce liquid smoke. The purpose of this study was to obtain antibacterial material from liquid smoke using the CPH pyrolysis method. This research method includes: preparation by drying the CPH raw materials for 5-7 days and then chopping the CPH sample dry. Furthermore, the pyrolysis process is carried out at 385-500 °C with a heating flow rate of 6 °C/min. The liquid smoke crude obtained is filtered and distilled fractionated to produce clearer liquid smoke. Analysis of Total Phenolic Content (TPC) of liquid smoke was carried out by the Folin-Ciocalteu (FC) method using gallic acid standards and Ultraviolet-Visible spectrophotometer instruments at maximum wavelength (λmax) 765 nm. The CPH liquid smoke antibacterial test was carried out using a dilution method with variations in liquid smoke concentrations of 5, 7, 10and 15%. The TPC of CPH liquid smoke is 1.035 g / L.The spectrogram analysis of Gas Chromatography-Mass spectroscopy (GC-MS) of CPH liquid smoke shows the presence of compounds:acetic acid, Methyl glyoxal,Pyridine, 4-methyl- pyridine, 4-[2(methylamino)ethyl]- Phenol.The results of the analysis of the minimum inhibitory concentration (MIC) of CPH liquid smoke against Escherichia coli and Staphylococcus aureus bacteria were obtained at a concentration of 15%.This study shows that pyrolysis extraction can be used as a technique for obtaining extracts of phenolic compounds from CPH and is promising for safe antibacterial agents.Keywords: CPH, liquid smoke, pyrolysis, Phenolic, antibacterial.Abstrak Kulit buah kakao (KBK) merupakan limbah hasil olahan buah kakao, mengandung biomassa lignoselulosa yang dapat dipirolisis menghasilkan asap cair.Tujuan penelitian ini untuk mendapatkan zat antibakteri dari asap cair dengan metode pirolisis KBK. Metode penelitian ini meliputi: preparasi dengan pengeringan bahan baku KBK selama 5-7 hari kemudian dilakukan pencacahan sampel KBK kering. Selanjutnya, Proses pirolisis dilakukan pada suhu 385-500°C dengan kecepatan alir pemanasan 6°C/menit.Crude asap cair yang diperoleh difiltrasi dan didestilasi fraksinasi untuk menghasilkan asap cair yang lebih jernih. AnalisisTotal Phenolic Content (TPC) asap cair dilakukan dengan metode Folin-Ciocalteu (FC) menggunakan standar asam galat dan instrumen spektrofotometer Ultraviolet-Visible pada panjang gelombang maksimum (λmaks) 765 nm. Uji antibakteri asap cair KBK dilakukan menggunakan metode dilusi dengan variasi konsentrasi asap cair yaitu 5, 7, 10dan 15%. TPC asap cair KBK sebesar 1,035 g/L.Analisis spectrogram Gas Chromatography-Mass spectroscopy (GC-MS) asap cair KBK menunjukkan adanya senyawa: asam asetat, metil glioksal, piridin, 4-metil-piridin, 4-[2(metilamino) etil]-fenol. Hasil analisiskonsentrasi hambat minimum (KHM) asap cairKBKterhadap bakteri Escherichia coli dan Staphylococcus aureus didapatkan pada konsentrasi 15%.Studi ini menunjukkan bahwa ekstraksi pirolisis dapat digunakan sebagai teknik untuk memperoleh ekstrak senyawa fenolik dari CPH dan menjanjikan untuk bahan antibakteri yang aman.Kata kunci: KBK, asap cair, pirolisis, fenolik, antibakteri.

Sintesis Kitosan dari Kulit Udang sebagai Bahan Membran Elektrode Au/Kitosan/GTA/AChE untuk Deteksi Pestisida Mashuni Mashuni; Halimahtussaddiyah Ritonga; Muhammad Jahiding; Fitri Handayani Hamid
ALCHEMY Jurnal Penelitian Kimia Vol 18, No 1 (2022): March
Publisher : UNIVERSITAS SEBELAS MARET (UNS)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20961/alchemy.18.1.56551.112-121

Sintesis kitosan telah dikembangkan dengan metode pemanasan microwave (MW) menggunakan pelarut alkali untuk kebutuhan berbagai aplikasi yang salah satunya sebagai membran immobilisasi enzim. Penelitian membran kitosan dengan immobilisasi enzim asetilkolinesterase (AChE) sebagai elektrode biosensor terus berkembang untuk menghasilkan perangkat mutakhir yang dapat mendeteksi pestisida. Penelitian ini bertujuan untuk menghasilkan biosensor berbasis elektrode membran Au/Kitosan/GTA/AChE untuk deteksi pestisida karbaril yang memiliki batas deteksi yang rendah, sensitivitas yang tinggi, waktu respon cepat dan presisi yang baik. Kitosan dihasilkan dari isolasi kitin dari kulit udang menggunakan alat MW dan pelarut NaOH dengan daya 450 Watt selama 15 menit menghasilkan rendemen sebesar 31,50%. Karakterisasi FTIR kitosan diidentifikasi adanya gugus O–H, C–N, N–H amina, dan C=O dengan intensitas yang rendah serta derajat deasetilasi rata-rata 95,6 ± 0,1%. Komposisi elektrode membran Au/Kitosan/GTA/AChE menggunakan kitosan dengan variasi konsentrasi 2, 5, dan 8% (b/v) dan glutaraldehid (GTA) 25%, kawat Au dan diimobilisasikan enzim asetilkolinesterase (AChE). Elektrode membran Au/Kitosan 2%/GTA/AChE memiliki karakteristik yang baik dimana nilai sensitivitas sebesar 23,318 mV.dekade-1 pada rentang konsentrasi pestisida 10-7 – 10-1 µg mL-1 dengan batas deteksi (LoD) 1 × 10-7 µg mL-1. Waktu respon yang diperoleh yaitu pada rentang waktu 5– 7 menit dengan relative standard deviation (RSD) sebesar 0,588%. Biosensor yang dikembangkan menunjukkan sensitivitas, stabilitas dan reproduktifitas yang baik, sehingga elektrode membran Au/Kitosan/GTA/AChE menjanjikan untuk alat deteksi pestisida. Synthesis of Chitosan from Shrimp Shell as Electrode Membrane Material Au/Chitosan/GTA/AChE for Pesticide Detection. Chitosan synthesis has been developed using the heating by microwave (MW) method using alkaline solvents for various applications, one of which is an enzyme immobilization membrane. Chitosan membrane research with immobilization of the enzyme Acetylcholinesterase (AChE) as a biosensor electrode developed to produce advanced devices that can detect pesticides. This study aims to produce a biosensor based on Au/Chitosan/GTA/AChE membrane electrodes to detect carbaryl pesticides with a low detection limit, high sensitivity, fast response time, and good precision. Chitosan was produced from the isolation of chitin from shrimp shells using an MW device and NaOH solvent with a power of 450 Watts for 15 minutes to produce a yield of 31.50%. The FTIR characterization of chitosan identified the presence of O–H, C–H, C–N, N–H amine groups and C=O with low intensity and the average degree of deacetylation of 95.6 ± 0.1%. The composition of Au/Chitosan/GTA/AChE membrane electrodes used chitosan with various concentrations of 2, 5, and 8% (w/v) and glutaraldehyde (GTA) 25% on Au wire and immobilized with AChE enzyme. The Au/Chitosan 2%/GTA/AChE membrane electrode has good characteristics where the sensitivity value is 23.318 mV.decade-1 in the pesticide concentration range of 10-7 – 10-1 µg mL-1 with a detection limit (LoD) of 1 × 10-7 µg mL-1. The response time obtained is in the range of 5 ‒ 7 minutes with a relative standard deviation (RSD) of 0.588%. The developed biosensor shows good sensitivity, stability, and reproducibility, thus Au/Chitosan/GTA/AChE membrane electrodes are promising for pesticide detection.

Penentuan Kandungan Fenolik Total Liquid Volatile Matter dari Pirolisis Kulit Buah Kakao dan Uji Aktivitas Antifungi terhadap Fusarium oxysporum Mashuni Pallawagau; Nur Arfa Yanti; M. Jahiding; La Ode Kadidae; Wahyu Ahwarul Asis; Fitri Handayani Hamid
ALCHEMY Jurnal Penelitian Kimia Vol 15, No 1 (2019): March
Publisher : UNIVERSITAS SEBELAS MARET (UNS)

Kulit buah kakao (KBK) adalah limbah organik dari hasil olahan buah kakao yang dapat digunakan sebagai sumber senyawa aktif. Kulit kakao mengandung senyawa selulosa, hemiselulosa dan lignin yang dapat terdekomposisi menghasilkan senyawa fenolik. Penelitian ini bertujuan untuk menentukan kandungan fenolik total atau Total Phenolic Content (TPC) dari liquid volatile matter (LVM) hasil pirolisis KBK dan uji aktivitas antifungi terhadap Fusarium oxysporum. Produksi LVM dihasilkan dari metode pirolisis KBK pada suhu 500 °C. Penentuan TPC dengan metode spektrofotometri UV-Vis menggunakan pereaksi Folin- Ciocalteu (FC) pada panjang gelombang maksimum 765 nm dengan larutan standar asam galat dan diukur setelah dibiarkan selama 60 menit pada suhu kamar. Uji aktivitas antifungi terhadap F. oxysporum dilakukan dengan metode dilusi. LVM dari hasil pirolisis KBK adalah 25,80% (b/b) dengan TPC 100% sebesar 2,28 g/L. Pirolisis KBK menghasilkan LVM yang memperlihatkan aktivitas antifungi dengan konsentrasi hambat minimal (KHM) 1% (v/v) dan konsentrasi bunuh minimal (KBM) 9% (v/v). Oleh karena itu, LVM KBK memiliki potensi untuk diaplikasikan sebagai fungisida alami.Determination of The Total Phenolic Content of Liquid Volatile Matter from Cocoa Pod Husk Pyrolysis and Antifungal Activity Test Against Fusarium oxysporum. The cocoa pod husk (CPH) is an organic waste from the processed cocoa potentially used as source of active compounds. The CPH contains cellulose, hemicelluloses, and lignin compounds that can be decomposed into phenolic compounds. The present study investigated the determination of total phenolic content (TPC) of liquid volatile matter (LVM) of CPH followed by the antifungal activity test against Fusarium oxysporum. The LVM production was performed by the pyrolysis method at temperature of 500 °C. The determination of TPC was evaluated by the UV-Vis spectrophotometric method using the Folin-Ciocalteu (FC) reagent at maximum wavelength of 765 nm with the standart solution of gallic acid measured after 60 min reaction at room temperature. The antifungal activity test against F. oxysporum was carried out by dilution method. The pyrolysis of CPH produces LVM of 25.80% (b/b) contained TPC 100% of 2.28 g/L. The LVM produced in this study shows antifungal activity with a minimal inhibitory concentration (MIC) 1% (v/v) and minimum fungicidal concentration (MFC) 9% (v/v). Therefore, the LVM CPH produced can be applied as a natural fungicide.

Pemanfaatan Kitosan dari Cangkang Kepiting Bakau (Scylla serrata) dengan Metode Microwave sebagai Bahan Dasar Kapsul Obat Mashuni Mashuni; Muhammad Natsir; Wahyuni Mia Lestari; Fitri Handayani Hamid; Muhammad Jahiding
ALCHEMY Jurnal Penelitian Kimia Vol 17, No 1 (2021): March
Publisher : UNIVERSITAS SEBELAS MARET (UNS)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20961/alchemy.17.1.42038.74-82

Cangkang kepiting bakau (Scylla serrata) mengandung senyawa kitin yang dapat ditransformasi menjadi kitosan sebagai bahan pembuatan kapsul obat. Proses transfomasi ini masih perlu untuk dikembangkan lanjut. Penelitian ini bertujuan untuk menghasilkan kapsul obat berbahan dasar cangkang kepiting bakau dengan metode microwave. Metode isolasi kitin dari cangkang kepiting bakau meliputi proses deproteinasi, demineralisasi, dan dekolorisasi. Sintesis kitosan menggunakan metode microwave (daya 450 watt selama 15 menit) dalam pelarut NaOH 50% (b/v) dengan perbandingan 1:20 (b/v), selanjutnya kitosan dihidrolisis menggunakan larutan HCl 20% (v/v) untuk menghasilkan glukosamin hidroklorida (GlcN HCl). Pembuatan kapsul obat dengan perbandingan GlcN HCl dan larutan sukrosa yaitu masing-masing 3:1, 3:3, dan 3:5. Rendemen kitosan yang diperoleh sebanyak 37,5% dengan derajat deasetilasi 83,8%. Kapsul obat diperoleh perlakuan terbaik pada perbandingan GlcN HCl-larutan sukrosa 3:1. Berdasarkan analisis terhadap spektra kapsul obat, diidentifikasi adanya gugus O−H, −CH3, N−H, C−N, C−O, dan β-1,4-glikosidik. Karakteristik sifat fisik menunjukkan bahwa kapsul obat memiliki kadar air 12,7%, uji waktu hancur 13 menit 34 detik dan kelarutan dalam asam 3 menit 17 detik. Hasil penelitian menunjukkan bahwa kitosan cangkang kepiting bakau telah memenuhi kriteria bahan dasar kapsul obat sesuai kriteria farmakope Indonesia.Utilization of Chitosan from Mangrove Crab Shell (Scylla serrata) using the Microwave Method as a Base Material for Medicinal Capsules. The mangrove crab shell (Scyllaserrata) contains a chitin compound potentially transformed into chitosan as an ingredient for medicinal capsules. The research on this transformation process needs further developments. This research aims to produce chitin-based medicinal capsules of mangrove crab shells by microwave methods. The chitin isolation method of mangrove crab shells covers the process of deproteinization, demineralization, and decoloration. The synthesis of chitosan used microwave methods (450 watts of power for 15 minutes) in the solvent of 50% NaOH (w/v) with a ratio of 1:20 (b/v). Chitosan was then hydrolyzed using 20% HCl (v/v) solution to produce glucosamine hydrochloride (GlcN HCl). Preparation of drug capsules with a ratio of GlcN HCl and sucrose solution, namely 3:1, 3:3, and 3:5, respectively. The chitosan yield was obtained as much as 37.5% with a deacetylation degree of 83.8%. The best treatment of the medicinal capsules was obtained on the ratio of GlcN HCl and sucrose solution 3:1. The FTIR analysis of medicinal capsules are identified by the presence of the O−H, −CH3, N−H, C−N, C−O, and β-1.4-glycosidic. The physical characterization showed that the medicinal capsules have a water content of 12.7%, the test of destroyed time of 13 minutes 34 seconds, and soluble in acid that is 3 minutes 17 seconds. The results show that chitosan prepared from mangrove crab shell is potentially used as a basic ingredient for medicinal capsules because it met the criteria for Indonesian pharmacopoeial capsules.

Synthesis of Antibacterial and Biodegradable Bioplastic Based on Shrimp Skin Chitosan and Durian Skin Cellulose with the Microwave Assistance Mashuni Mashuni; La Ode Ahmad; Emiliana Sandalayuk; Fitri Handayani Hamid; M Jahiding; Andi Muhammad Naufal Khaeri
Jurnal Kimia Valensi Jurnal Kimia VALENSI Volume 8, No. 1, May 2022
Publisher : Syarif Hidayatullah State Islamic University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15408/jkv.v8i1.23233

This study aimed to obtain the best composition in the synthesis of antibacterial bioplastics made from chitosan from shrimp skin (SS) and cellulose from durian skin (DS). The research method began with the isolation of chitin from SS. Then it was deacetylated using a microwave (MW) at 60 °C for 15 minutes at 400 watts of power in an alkaline solution. The extraction of cellulose from DS through delignification using the MW for 20 minutes, 300 watts of power in Na2SO3 solution. Synthesis of bioplastics is made from variations in the composition of chitosan (8, 12 and 16% w/w), cellulose and glycerol as a plasticizer. The characterization of bioplastics with FTIR obtained functional groups O–H, C–H, C=O, C–N and N–H amines, and SEM characterization obtained bioplastic has fibre and pore size 15.429 µm. The best bioplastic characteristics were the composition of 12 % chitosan, with tensile strengths of 13.28 Mpa, water resistance of 79 % and the ability to degrade 52.67% after 15 days have met international plastic standards (ASTM 5336). The antibacterial activity of bioplastics against Escherichia coli and Staphylococcus aureus with the Disc diffusion method showed the presence of moderate zones category of inhibition so that the resulting bioplastics can be recommended as food packaging that is environmentally friendly and antibacterial.

Biosensor based on Cellulose Acetate/Glutaraldehyde Membrane Electrodes for detection of organophosphorus pesticides Mashuni Mashuni; Fitri Handayani Hamid; M Jahiding; Andi Muhammad Naufal Khaeri
Jurnal Kimia Sains dan Aplikasi Vol 26, No 5 (2023): Volume 26 Issue 5 Year 2023
Publisher : Chemistry Department, Faculty of Sciences and Mathematics, Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/jksa.26.5.160-165

In recent years, sensor applications have been critical in many fields, especially food safety and pesticides. Organophosphorus pesticides (OPPs) can be detected using a potentiometric biosensor with a membrane electrode made of a new natural material based on cellulose acetate (CA). Acetylcholinesterase was immobilized to 15% modified CA membrane electrodes using glutaraldehyde (GTA) as crosslinking agent and gold (Au) electrode. An indirect method used an acetylthiocholine chloride (ATCl) substrate to find OPPs like chlorpyrifos, profenophos, and diazinon. The working electrode was an CA/GTA membrane electrode, and the reference electrode was an Ag/AgCl electrode, whose potential value was measured with a potentiometer. The surface morphology of the biosensor membrane was investigated using scanning electron microscopy with energy-dispersive X-ray spectroscopy (SEM/EDX). It showed that the CA membrane has a smooth, porous surface and is very dense, and its structure consists of 71.27% carbon (C) and 28.73% oxygen (O) with an average diameter of 562.33 nm. A potentiometric biosensor based on AChE inhibition for the detection of OPPs showed a limit of detection (LoD) of 1×10−6 μg/L with a linearity range of 1×10−6–1.0 μg/L. The %inhibition value for the chlorpyrifos pesticide was 14.44 to 73.08%, profenophos was 11.98 to 77.98%, and diazinon was 18.58 to 83.27%. Therefore, higher inhibitor concentrations (OPPs) have a greater ability to prevent the AChE enzyme from breaking down the acetylcholine substrate. The biosensor with the CA membrane has a wide linearity range and a low detection limit. The potentiometer rapidly detects pesticide residues.

A Novel Enzyme Biosensor Based on Ag/Reduced Graphene Oxide/Chitosan Membrane with Potentiometer for Pesticide Detection Mashuni Mashuni; Nur Arfa Yanti; Irnawati Irnawati; Fitri Handayani Hamid; Muhammad Jahiding
Molekul Vol 18 No 1 (2023)
Publisher : Universitas Jenderal Soedirman

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20884/1.jm.2023.18.1.6864

Long-term accumulation of pesticides in the environment to human and animal health. Acetylcholinesterase (AChE) biosensors with highly sensitive potentiometer transducers based on the membranes of Ag, reduced graphene oxide (rGO), and chitosan (CS) has been successfully developed. The membrane was made with a composition of 0.5 mM AgNO3, 2.5 mg/mL rGO, and 2% (w/v) CS coated on the surface of the Au electrode. The composition of the membrane with three ratios, namely 1:1:2, 2:1:3, and 3:1:4. Then, membrane Ag/rGO/CS and the enzyme AChE were immobilized on the membrane surface. The prepared biosensor has excellent conductivity, catalytic activity, and biocompatibility attributed to the synergistic effect of Ag/rGO/CS and glutaraldehyde (GTA) as crosslinkers and providing a hydrophilic surface for AChE adhesion. The linear range in biosensors is 1 × 10-8 to 1 µg L-1 with a regression coefficient of 0.9803 for 1:1:2 membrane, 0.9836 for 2:1:3 membrane, and 0.9850 for 3:1:4 membrane. The LOD is about 1 × 10-7 µg L-1 for all membranes. In addition, the biosensor showed good sensitivity, acceptable reproducibility, and stability, having an RSD of less than 5%. This biosensor makes it possible to provide a new and promising tool for analyzing pesticides, especially organophosphates.

Microwave Assisted Extraction of Banana Stem Waste and its Antifungal Activity against Fusarium Oxysporum Mashuni Mashuni; muhammad Natsir; Sudirman Sudirman; Sitti Hadijah Sabarwati; Fitri Handayani Hamid; M. Jahiding
International Journal of Science Technology and Health Vol 1 No 1 (2023): Science Technology and Health
Publisher : LPPM ISTEK 'Aisyiyah Kendari

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Banana stem (BS) waste is obtained in large quantities in banana production. In this work, microwave extraction (MAE) from BS was used, and the solvent concentration parameters were 50%, 60%, 70%, 80%, 96% (v/v) ethanol, and 5% HCl with a sample weight of 10 g each. The influence of solvent, time, temperature, and solid: the liquid ratio was evaluated on the extraction results. Total phenolic content (TPC) and its functional performance against Fusarium oxysporum. The effect of a high ethanol concentration on BS extraction was observed because the higher ethanol solvent concentration resulted in higher extraction results and TPC. Optimal MAE conditions were determined at 200 watts for 20 minutes, with 80% ethanol showing better TPC results than other ethanol concentrations, namely 0.7171 mg g-1. The results of chemical content analysis using gas chromatography–mass spectrometry (GC-MS) of BS extract of 80% ethanol obtained phenolic compounds, carboxylic acids, aldehydes, esters, ketones, and furans. BS extract of 80% ethanol showed antifungal activity of Fusarium oxysporum with an apparent zone diameter of 9.7 mm (moderate category). It can be concluded that MAE is an efficient technique for releasing bioactive molecules from BS with TPC and antifungal applications in the agricultural industry.

Microwave-assisted extraction of Phenolic Compounds from Pineapple Peel against Staphylococcus aureus and Escherichia coli Mashuni Mashuni; Fitri Handayani Hamid; M Jahiding; Nur Cahya Islamiati MR; Sitti Hadijah Sabarwati; Andi Muhammad Naufal Khaeri
International Journal of Science Technology and Health Vol 2 No 1 (2024): Science, Technology and Health
Publisher : LPPM ISTEK 'Aisyiyah Kendari

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Pineapple production is mostly marketed as a processed product, resulting in large amounts of industrial waste consisting of pineapple peel, core and crown. This study evaluated organic solvents for microwave-assisted extraction (MAE) of phenolic compounds from pineapple peel and their total phenolic content and antibacterial activities. The application of microwave technology in phenolic extraction provides a fast extraction process and produces higher yields. In addition, organic solvent ethanol is considered an environmentally friendly solvent characterized by low toxicity and increased capacity to extract bioactive compounds. The solvent compositions are ethanol (80%), ethanol-HCl (80%-5%), and ethanol-NaOH (80%-5%). A higher phenolic compound was obtained using ethanol-HCl (80%-5%) of 2.68 mg eq GA/g DW. The results of the antibacterial activity test against Staphylococcus aureus was 19.00 mm and Escherichia coli was 19.31 mm. These results indicate that pineapple peel extract from ethanol-HCl solvent can be an effective antibacterial agent.

The Production of Renewable Fuels Sago Dregs and Low-Density Polyethylene by Pyrolysis and its Characterization Jahiding, M; Mashuni, Mashuni; Handayani Hamid, Fitri; Sitti Ilmawati, Wa Ode; Hamdana, Renaldi
Science and Technology Indonesia Vol. 9 No. 3 (2024): July
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.2024.9.3.565-576

Biomass has been suggested as a sustainable alternative to substitute fossil fuels. Based on the pyrolysis method, the biomass would be converted into energy through decomposition by thermal degradation under an inert atmosphere, resulting in charcoal, liquid, and gas products. The quality of oils is effectively enhanced through the pyrolysis of lignocellulosic biomass and plastic due to the facilitation of deoxygenation by plastics. This study investigates the impact of incorporating low-density polyethylene (LDPE) plastic in co-pyrolysis with sago dregs (SDs) waste. Pyrolysis of SDs and LDPE mixtures with ratios of 5:1, 4:2, 3:3, 2:4, and 1:5 at various temperatures of 375°C, 425°C, and 475°C. The maximum oil yield obtained for SDs and LDPE pyrolysis was 44.94%. The calorific value (CV) of all observed compositions is a minimum of 10,579.57 kcal kg-1 and a maximum of 11,545.21 kcal kg-1. The gas chromatography-mass spectroscopy (GC-MS) analysis confirmed the interaction between SDs and LDPE on co-pyrolysis. The addition of LDPE will produce rich aliphatic and aromatic compounds, like the proportions of alkanes (45.53%), alkenes (30.62%), alcohol (0.4%), and benzene (17.68%). Co-pyrolysis of SDs and LDPE promotes enhanced oil production by reducing oxygenated compounds and increasing hydrocarbon compounds.

Co-Authors Andi Muhammad Naufal Khaeri Andi Muhammad Naufal Khaeri Andi Muhammad Naufal Khaeri Emiliana Sandalayuk Halimahtussaddiyah Ritonga Hamdana, Renaldi Irnawati Irnawati Jahiding, M Kadir, Waris Abdul Khaeri, Andi Muhammad Naufal La Ode Ahmad La Ode Kadidae, La Ode M Jahiding M Jahiding M Jahiding M. Jahiding M. Jahiding M. Jahiding Mashuni Mashuni Mashuni Mashuni Mashuni Mashuni Mashuni Mashuni Mashuni Mashuni Mashuni Mashuni Mashuni Mashuni Mashuni Pallawagau Muh. Aksan Dermawan Muhammad Jahiding Muhammad Jahiding Muhammad Natsir Muhammad Natsir Nur Arfa Yanti Nur Cahya Islamiati MR SITTI HADIJAH SABARWATI Sitti Ilmawati, Wa Ode Sudirman Sudirman Wahyu Ahwarul Asis Wahyuni Mia Lestari

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