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All Journal Jurnal Teknik Kimia USU JURNAL PENGABDIAN KEPADA MASYARAKAT Jurnal Kimia Mulawarman Science and Technology Indonesia Abdimas Talenta : Jurnal Pengabdian Kepada Masyarakat Indonesian Journal of Chemical Science and Technology Jurnal Teknik Kimia USU Jurnal ABDIMAS MUTIARA
Indra Masmur
Departemen Kimia, Fakultas Matematika Dan Ilmu Pengetahuan Alam, Universitas Sumatera Utara, Medan, Sumatera Utara
Agriculture, Biological Sciences & Forestry Arts Humanities Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Computer Science & IT Education Energy Engineering Environmental Science Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Materials Science & Nanotechnology Medicine & Pharmacology Nursing Physics Social Sciences Other

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Empowerment of Haranggaol Subdistrict community, Haranggaol Horison District, Simalungun Regency, North Sumatra in efforts to improve local wisdom Ritonga, Fajar Utama; Siagian, Matias; Masmur, Indra
ABDIMAS TALENTA: Jurnal Pengabdian Kepada Masyarakat Vol. 4 No. 2 (2019): ABDIMAS TALENTA: Jurnal Pengabdian Kepada Masyarakat
Publisher : Talenta Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1362.53 KB) | DOI: 10.32734/abdimastalenta.v4i2.4250

Abstract

The Collaborative Work Lecture with BKS West PTN is one of the community service programs conducted by 20 state universities where the University of North Sumatra is the host of the program. In the KKN program, we realize one of the tri dharma of higher education namely community empowerment. The aim of this program is that students are expected to gain learning experience through involvement in the community who directly find, formulate, solve and overcome problems that are in the field. The Community Service Program that we carry out is devoted to the community in Haranggaol Village, Haraggaol Horison District, Simalungun Regency, North Sumatra Province with the program "Community Empowerment of the Haranggaol Village, Haranggaol Horison District, Simalungun Regency, North Sumatra Province in an Effort to Improve Local Wisdom and Ecotourism in the Region of North Sumatra. This program is expected to be able to contribute to the community in the form of helping improve basic facilities and infrastructure as well as increasing the human resources available in the Haranggaol Basin so that local wisdom and ecotourism are of higher quality and help local communities maintain natural resources so that they are sustainable
Pemanfaatan dan Pengolahan Pupuk Organik Dari Limbah Tanaman Jagung Dan Kulit Coklat Uswatun Hasanah; Murniaty Simorangkir; Indra Masmur; Sajaratud Dur; Elvri Melliaty Sitinjak
JURNAL PENGABDIAN KEPADA MASYARAKAT Vol 20, No 75 (2014)
Publisher : Universitas Negeri Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24114/jpkm.v20i75.4821

Abstract

Kegiatan IbM  Kelompok Tani Jagung dan Coklat ini bertujuan 1) memberi solusi kepada mitran Kelompok Tani Jagung Sejahtera dan Kelompok Tani Coklat Saroha untuk mengatasi kekuranganpupuk organik dengan memanfaatkan limbah tanaman jagung dan coklat yang cukup melimpahn dalam usaha meningkatkan produktivitas tanaman  dan mensukseskan program pertanianorganik, 2) membuka peluang membuka usaha baru pupuk organik. Target khusus yang ingin dicapai adalah publikasi jurnal, laporan kegiatan,  aspek produksi dan manajemen.  Luaran kegiatan adalah produk pupuk organik limbah tanaman jagung dan coklat berkualitas (fisik dan kandungan unsur hara), desain alat perajang mekanik limbah pertanian dan rencana bisnis sederhana pupuk organik. Metode yang diterapkan adalah penyuluhan, rancang alat perajang mekanik  limbah organik, pelatihan dan peraktek produksi serta penyuluhan perencanaan bisnis sederhana pupuk organik. Kegiatan melibatkan  tiga orang dosen dan dua mahasiswa. Mitra kegiatan adalah kelompok tani jagung Sejahtera dan kelompok tani coklat Saroha. Hasil kegiatan menunjukkan bahwa 80 %  kelompok tani kedua mitra mampu mengolah pupuk organik dari limbah kulit coklat dan limbah batang serta daun jagung dalam waktu 10 hari. Kualitas tekstur pupuk organic baik yaitu tidak berbau, tidak berair, gembur, tidak panas dan warnanya hitam. Kualitas unsur hara .masing-masing pupuk limbah jagung, coklat dan campuranlimbah jagung dan coklata dalah  ratio C/N 8,4; 8,8 dan 9,0 yang sudah mendekati ratio C/N tanah, kadar KO 1,60 %; 1,52% dan 1,58% serta kadar P2O adalah  3,15%; 2,50% dan 3,00%. Hal ini menunjukkan bahwa  zat organik limbah telah terurai menjadi unsur hara yang menyuburkan tanah dan mudah diserap 5 tanaman. Kelompok tani  mitra mengembangkan pembuatan pupuk dengan menggunakan limbah  tanaman/batang pisang yang ada di lokasi pada saat sebelum panen jagung.  Kapasitas alat perajang mekanik yang digunakan dapat memotong 500 kg limbah pertanian/jam.  Sebanyak 50% kelompok tani mitra berminat berwirausaha baru pupuk organik dan 50% lagi  sementara hanya untuk memenuhi kebutuhan pupuk tanamannya. Kelompok tani mitra ini memerlukan pembinaan lanjutan baik dalam penyempurnaan produksi, pengemasan maupun pemasaran produksinya.
POLIURETAN MINYAK AMPAS KOPI ARABIKA ( Coffea arabica L.) Indra Masmur; Jumadi Septian Sihombing; Mimpin Ginting
JURNAL KIMIA MULAWARMAN Vol 18 No 2 (2021)
Publisher : Jurusan Kimia Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Mulawarman

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30872/jkm.v18i2.1074

Abstract

Polymerization of coffee grounds oil with Diphenyl Methane 4,4 Diisocyanate (MDI), epoxidation with performic acid and H2SO4(p) catalyst at 40-45°C, followed by hydrolysis to obtain polyols. The synthesis was carried out by reacting the polyol with Diphenyl Methane 4,4 Diisocyanate (MDI) with a ratio (polyol: MDI) 9:1; 8:2 ; 7:3 ; 6:4 ; 5:5 (v/v) in dichloromethane solvent. Each was characterized and the density values were 0.9086 gr/cm to 0.4979 gr/cm-1, the tensile strength and elongation values were 0.113 Mpa to 0.299 Mpa and 3.23% to 6.85%, respectively.
Bioethanol Manufacturing from α-Cellulose Waste of Empty Palm Oil Frugs (Elaeis guineensis jack) with Hydrolysis Concetration Variations HCl and Cellulase Enzyme Indra Masmur; Herliana Herliana; Bramwell Sitompul; Elvri Melliaty Sitinjak
Indonesian Journal of Chemical Science and Technology (IJCST) Vol 5, No 2 (2022): JULI 2022
Publisher : Universitas Negeri Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24114/ijcst.v5i2.37455

Abstract

This study uses raw materials containing lignocellulose, namely empty fruit bunches of oil palm. Oil palm empty fruit bunches were isolated to produce cellulose, hydrolyzed into simple sugars, fermented, and distilled. From the isolation of cellulose obtained α-cellulose of 19.9612 grams (26.6149%). Then it was hydrolyzed using HCl with a concentration variation of 15%; 20%; 25%; 30%; and enzymatically hydrolyzed using cellulase to produce simple sugars which were tested qualitatively with Benedict's reagent and Tollens reagent, then quantitatively tested by the Luff Schroll method. The higher the concentration of acid used, the higher the sugar will be. The best bioethanol obtained from acid hydrolysis is using 30% HCl with ethanol content of 6.54% and enzymatic 7.32%.
Ethanol Production Comparison from Agricultural Waste of Cellulose Source Within Hydrolysis Hcl and Cellulose Enzyme Indra Masmur; Clairine Clairine; Mega Evelin Rajagukguk; Teti Purwita Sari; Elvri Melliaty Sitinjak
Indonesian Journal of Chemical Science and Technology (IJCST) Vol 5, No 2 (2022): JULI 2022
Publisher : Universitas Negeri Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24114/ijcst.v5i2.37456

Abstract

The production of Ethanol has been utilized through the process of cellulose isolation from agricultural waste such as corn husk, rice straw and rice husk. Isolation of cellulose with pretreatment delignification using, NaOH 2% to produces cellulose of corn husk 16,6921 g (22,25%), rice straw 16,9021 g (22,53%) and rice husk 16,3691 g (21,85%) then analyzed the functional groups using FT-IR and SEM analysis. Cellulose as much as 2 g is hydrolyzed using HCl 30% and cellulase enzymes to obtain sugar that is qualitatively tested with Benedict and Tollens reagent and quantitatively tested with Luff Schoorl method and produces highest sugar content of rice husk 8,64% and 10,95%. The next stage sugar of hydrolysis will be fermented using  yeast (Saccharomyces cerevisiae) with 6 days, and then distilled at a temperature of 78-80oC. Ethanol was calculated by the potassium dichromate oxidation method to gave highest result from agricultral waste of ethanol chemical 5,97% and enzymatic 6,89% is rice husk.
Workshop Pembuatan Berita Online Sebagai Media Edukasi SMAN 1 Berastagi Ginting, Riah Ukur; Hestina; Erdiana Gultom; Indra Masmur
Jurnal Abdimas Mutiara Vol. 4 No. 2 (2023): JURNAL ABDIMAS MUTIARA
Publisher : Universitas Sari Mutiara Indonesia

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Abstract

Pendidikan sekolah menengah atas adalah jenjang pendidikan menengah pada pendidikan formal di Indonesia yang dilaksanakan setelah lulus dari sekolah menengah pertama (SMP) atau sederajat. Pendidikan ini dapat meningkatkan kualitas dan mencetak generasi kehidupan bangsa melalui pembelajaran yang diberikan oleh para guru serta praktisi terkait yang menjadi peran dalam memberikan pembelajaran sebagai acuan siswa dalam belajar di lingkungan sekolah. Berbagai kegiatan yang dibutuhkan antara lain : membuat berita online tentang kehidupan organisasi siswa di sekolah dan memberikan informasi kepada siswa bagaimana cara meningkatkan proses pembelajaran yang tepat dan berguna serta membantu guru dan siswa dalam menggunakan berita online seperti kompasiana sebagai media pembelajaran di sekolah. Dalam hal ini harus mempunyai alamat email untuk bisa bergabung di kompasiana. Untuk mempersiapkan hal tersebut, Program Studi Sistem Informasi Fakultas Sains, Teknologi dan Informasi Universitas Sari Mutiara Indonesia dalam melaksanakan salah satu tri darma perguruan tinggi, yaitu pengabdian kepada masyarakat dengan melaksanakan workshop pembuatan berita online sebagai media edukasi SMAN 1 Berastagi. Materi yang diberikan adalah : Pengunaan kompasiana sesudah pandemi covid-19 pada SMAN 1 Berastagi. Kegiatan ini dapat memberikan pemahaman kepada guru maupun siswa untuk menggunakan berita online sebagai media edukasi.
Pemanafaatan Terjemahan Online Sebagai Media Pembelajaran Bagi Guru UPT SDN 060883 Kota Medan Ginting, Riah Ukur; Erdiana Gultom; Hestina; Indra Masmur
Jurnal Abdimas Mutiara Vol. 5 No. 1 (2024): JURNAL ABDIMAS MUTIARA
Publisher : Universitas Sari Mutiara Indonesia

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

Abstract

Kefasihan berbahasa asing diperlukan, baik untuk berkomunikasi dengan orang lain lain maupun untuk menterjemahkan bahasa dari buku atau artikel. Untuk dapat menterjemahkan dari buku atau artikel berbahasa asing diperlukan terjemahan mesin teknologi penerjemah berbasis online. Mesin teknologi penerjemah berbasis online menggunakan google translate, bing microsoft translator dan quillbot sebagai media pembelajaran untuk mempermudah terjemahan bagi Guru UPT SDN 060883 kota Medan. Tujuan pengabdian ini untuk meningkatkan kemampuan menterjemahkan bahasa menggunakan mesin teknologi penerjemah khususnya Guru UPT SDN 060883 kota Medan. Metode pengabdian ini mengaplikasikan metode pembelajaran serta pengajaran yang dilakukan oleh Guru UPT SDN 060883 kota Medan. Hasil dari pengabdian ini menunjukkan bahwa Guru UPT SDN 060883 kota Medan dapat menggunakan google translate, bing microsoft translator dan quillbot sebagai media pembelajaran.
Effect of Chain Length on Fatty Alcohol Sulfation using SO3-DMF Sitinjak, Elvri Melliaty; Masmur, Indra; Tarigan, Dedi; Anggini, Cindy; Simbolon, Emma Juli Anamasta; Simatupang, Endang; Pane, Yulia Ratu; Simorangkir, Murniaty; Nurfajriani, Nurfajriani
Indonesian Journal of Chemical Science and Technology (IJCST) Vol 6, No 2 (2023): JULY 2023
Publisher : Universitas Negeri Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24114/ijcst.v6i2.49376

Abstract

The fatty alcohols C8, C10, C16 and C18 were used as raw materials for the sulfation reaction using the SO3-DMF complex to study the ratio of carbon chains. The first step is to prepare the SO3-DMF complex, by reacting SO3 gas into DMF at a temperature of 0-4 0C with a reaction time of 3 hours, then sulfation is carried out at 100 0C for 5 hours on C8, C10, C16 and C18. Tests were carried out on the results of sulfation with an FT-IR Spectrophotometer. Surface tension, foam stability and yield calculations. From the sulfation results, the yield results were respectively 83%, 81%, 68% and 61% then the results from the surface tension analysis were 35.3, dyne/cm, 30.3 dyne/cm, 29.4 dyne/cm and 33.6 dyne/cm and foam stability analysis of 0.2 cm, 0.8 cm, 0.7 cm and 1 cm. Based on the surface tension reduction value, palmityl alcohol is the best raw material for making surfactants.
Synthesis of Sodium Myristyl Sulfate with Myristyl Alcohol Sulfation using SO3-DMF Sitinjak, Elvri Melliaty; Masmur, Indra; Tarigan, Dedi; Anggini, Cindy; Simbolon, Emma Juli Anamasta; Simatupang, Endang; Pane, Yulia Ratu; Simorangkir, Murniaty; Nurfajriani, Nurfajriani
Indonesian Journal of Chemical Science and Technology (IJCST) Vol 6, No 2 (2023): JULY 2023
Publisher : Universitas Negeri Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24114/ijcst.v6i2.49378

Abstract

The sulfation reaction between myristyl alcohol and the SO3-DMF complex has been successfully carried out to produce sodium myristyl sulfate. Formation of the SO3-DMF complex by reacting DMF and SO3 gas obtained from the reaction of phosphorus pentaoxide and H2SO4. The variables studied were the time of formation of the complex, the time and temperature of sulfation and the concentration of NaOH at neutralization. The results of myristyl alcohol sulfation with SO3-DMF were tested by FTIR spectroscopic analysis, surface tension test, and foam stability test. The formation time of the SO3- DMF complex of 5 hours is the result of the highest surface tension reduction and the most optimal foam stability. The results of the foam stability test analysis showed the highest value at 80oC with a foam stability of 0.5 cm. The best result of sulfation neutralized with 40% NaOH solution was able to reduce the surface tension value and has foam stability up to 66% with a decrease in foam height of 0.3 cm
Optimasi dan Sintesis Selulosa Dialdehid Berbasis Limbah Tandan Kosong Kelapa Sawit Sitinjak, Elvri Melliaty; Masmur, Indra; Shuwanto, Hardy; Dina, Sari Farah; Hutajulu, Poltak Evencus; Saragih, Gimelliya; Siahaan, Immanuel; Damanik, Fadhila Natania; Doloksaribu, Rahel Argana
Jurnal Teknik Kimia USU Vol. 14 No. 2 (2025): Jurnal Teknik Kimia USU
Publisher : Talenta Publisher (Universitas Sumatera Utara)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32734/jtk.v14i2.20686

Abstract

Empty Fruit Bunches of Oil Palm (EFB) represent one of the most problematic biomass wastes in Indonesia due to their massive volume, inefficient management, and underutilization of their chemical potential, leading to significant environmental, economic, and technical impacts. The degradation or processing of such large-scale waste generally requires a long period of time. This study focuses on converting the cellulose content in EFB into dialdehyde cellulose (DAC), which can be applied as a wet strength agent. The aim is to reduce EFB waste by isolating cellulose from EFB biomass and subsequently converting it into DAC, which can be utilized as a wet strength additive in paper or tissue products. The oxidation of EFB cellulose into DAC was optimized using sodium periodate (NaIO₄) as the oxidizing agent, with varying reaction times of 3, 6, and 9 hours. The synthesized DAC was qualitatively analyzed using the Fehling’s test and solubility observations, followed by functional group identification via FTIR and morphological characterization using SEM. Among the samples, DAC-6 exhibited the most optimal characteristics, with a degree of oxidation reaching 82.1% and a carbonyl content of 52.8%. FTIR analysis confirmed the presence of carbonyl functional groups in all DAC samples, indicating successful oxidation of hydroxyl groups in cellulose. DAC-6 showed the most prominent carbonyl absorption peak at a wavenumber of 1748 cm⁻¹.
Co-Authors Anggini, Cindy Bramwell Sitompul Chairul Saleh Clairine Clairine Damanik, Fadhila Natania Daniel Diana Alemin Barus, Diana Alemin Djihan Ryn Pratiwi, Djihan Ryn Doloksaribu, Rahel Argana Elvri Melliaty Sitinjak Elvri Melliaty Sitinjak Erdiana Gultom Eva Marliana, Eva Fajar Utama Ritonga Ginting, Adil Gustanto Hairani, Rita Herliana Herliana Hestina Hutajulu, Poltak Evencus Jumadi Septian Sihombing Lina Tarigan Magdaleni, Agustina Rahayu Masmur, Hestina Matias Siagian Mega Evelin Rajagukguk Mimpin Ginting Mimpin Ginting, Mimpin Murniaty Simorangkir Nurfajriani, Nurfajriani Pane, Yulia Ratu Perangin-angin, Sabarmin Riah Ukur Ginting, Riah Ukur Ritonga, Fajar Utama Ritson Purba, Ritson RR. Ella Evrita Hestiandari Ruga, Ritbey Saibun Sitorus Sajaratud Dur Saragih, Gimelliya Sari Farah Dina Shuwanto, Hardy Siahaan, Immanuel Simatupang, Endang Simbolon, Emma Juli Anamasta Sitinjak, Elvri Melliaty Subur P Pasaribu Tarigan, Dedi Teti Purwita Sari Tua Raja Simbolon