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All Journal Jurnal Teknik Kimia USU Abdimas Talenta : Jurnal Pengabdian Kepada Masyarakat Jurnal Abdimas Madani dan Lestari (JAMALI) Jurnal Teknik Kimia USU Sewagati Journal of Agrosociology and Sustainability
Renita Manurung
University of Sumatera Utara
Agriculture, Biological Sciences & Forestry Arts Humanities Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Earth & Planetary Sciences Education Energy Engineering Environmental Science Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Materials Science & Nanotechnology Medicine & Pharmacology Public Health Social Sciences Other

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Effect of impeller types on saponification reaction using stirred tank reactor Hasibuan, Rosdanelli; Parsaulian R, Rahmad; Adventi, Fransiska; Manurung, Renita; Hidayati, Juliza
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 (357.583 KB) | DOI: 10.32734/abdimastalenta.v4i2.4190

Abstract

The choice of impeller type is an important factor in maximizing the performance of a stirred tank reactor in saponification process. This study aims to determine the type of impeller that can produce the highest reaction rate by taking into account changes in alkali concentration in saponification reactions so as to obtain a shorter residence time. The saponification process was carried out by reacting 30% oil with alkali (KOH) at operating conditions 70C, stirring speed of 400 rpm for 45 minutes using 4 types of impellers namely paddle-2 blades, pitch blade turbine 45°-2 blades, paddle-4 blades, pitch blade turbine 45°-4 blades. Testing of alkali concentration was carried out every 5 minutes until the reaction was complete. Alkali concentration was obtained at the end of the reaction using a paddle-2 blades impeller of 0.182 M with a conversion of 97.35%, a pitch blade turbine 45°-2 blades of 0.142 M with a conversion of 97.93%, paddle-2 blades of 0.106 M with conversion of 98.46%, pitch blade turbine 45°-4 blades of 0.100 M with conversion of 98.54%.
Ekstraksi senyawa tanin dalam ampas kopi sebagai sumber daya tanin terbarukan Suhaila, Rif'ati; Husna, Zakiatul; Manurung, Renita; Siregar, Alwi Gery Agustan
Journal of Agrosociology and Sustainability Vol. 1 No. 2: (January) 2024
Publisher : Institute for Advanced Science, Social, and Sustainable Future

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61511/jassu.v1i2.2024.304

Abstract

The increase in global coffee consumption causes an increase in the amount of waste. One of the components of coffee grounds waste that is thrown into the environment is tannin. Tannins are applied in various industries, including the textile, pharmaceutical, cosmetic and food industries. The research aims to observe the effect of temperature and extraction time on tannin content using the ultrasonic extraction method. Extraction was carried out using 80% ethanol solvent with 2 variations, namely, variations in extraction temperature (40, 45, 50, 55, and 60) ˚C and extraction time (10, 20, 30, 40, 50, and 60) minutes. Extracts containing tannins were then analyzed qualitatively and quantitatively. Tannin levels were tested qualitatively using FeCl3 and Gelatin, and quantitative analysis was carried out using a UV-VIS Spectrophotometer. The functional groups contained in the tannin extract were tested using the FTIR (Fourier Transform Infra Red) Spectroscopy method. The highest tannin content was obtained at an extraction temperature of 55°C and an extraction time of 10 minutes, amounting to 215.85 mg/g-1. The tannins contained in coffee grounds extract are condensed tannins.
Pemanfaatan Hidrofobik Deep Eutectic Solvents dalam Penyisihan Dimetoat, Klorpirifos, dan Profenofos pada Buah Tomat dan Sayur Brokoli Daely, Axel Try Iddo; Manurung, Renita
Jurnal Teknik Kimia USU Vol. 9 No. 1 (2020): Jurnal Teknik Kimia USU
Publisher : Talenta Publisher (Universitas Sumatera Utara)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32734/jtk.v9i1.3464

Abstract

Organophosphate insecticide is a type of pesticide that is commonly used, where this pesticide can be toxic to environmental organisms even to humans. Hydrophobic Deep Eutectic Solvent (DES) is a new generation nonpolar solvent of ionic liquids because it has better physical properties and chemical properties so that it can be used in the extraction process. DES was synthesized at 50 oC for 15 minutes with a stirring speed of 300 rpm and a molar ratio of Dl-menthol: lauric acid varied from 1: 1, 2: 1, and 3: 1. Pesticide removal is done by mixing 5 ml of DES with 200 ml of aquadest and then Tomatoes and Broccoli vegetables are washed with the solution. DES characteristics are done by analyzing the shape and measuring the freezing point, density and viscosity of DES. The concentration of pesticide residues was analyzed using Gas Chromatography-Mass Spectrometer (GC-MS). The highest elimination of pesticides obtained with DES hydrophobic which has a molar ratio of dl-menthol: lauric acid is 3: 1 where the highest elimination of pesticides in Tomatoe is 44.82% for Dimethoate pesticide, 84.1% for Chlorpyrifos pesticide, and 83.72% for Profenofos pesticide and Broccoli 35.19% for Dimetoat pesticide, 64.64% for Chlorpyrifos pesticide, and 55.28% for Profenofos pesticides.
Aplikasi Pelarut Eutektik K2CO3-Gliserol pada Ekstraksi Pigmen Antosianin dari Kulit Manggis (Garcinia mangostana Linn.) Asni, Hazima; Manurung, Renita; Bonella, Dian
Jurnal Teknik Kimia USU Vol. 9 No. 2 (2020): Jurnal Teknik Kimia USU
Publisher : Talenta Publisher (Universitas Sumatera Utara)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32734/jtk.v9i2.3562

Abstract

Mangosteen peel (Garcinia mangostana Linn.) contains 593 ppm of anthocyanin. Anthocyanin pigment from mangosteen peel (Garcinia Mangostana Linn.) can be used as an alternative to synthetic dyes. Eutectic solvents are the latest development in extraction technology to extract anthocyanin from its source. The solvent used is pottasium carbonate-glycerol based eutectic solvent. The purpose of this study was to determine the effect of eutectic solvents on the extraction of anthocyanin pigments from mangosteen peel. This research consists of 2 treatment factors namely rmolar ratio of K2CO3: glycerol of 1: 5, 1: 6, and 1: 7 and material: solvent ratio of 1: 4, 1: 6 and 1: 8. Anthocyanin content and color intensity were analyzed using a Spectrophotometer UV-Vis.  Extraction using K2CO3 : glycerol eutectic solvent at a ratio of 1: 7 and the ratio of material: solvent 1: 8 produced the best treatment with extract yield of 46%; anthocyanin content of 263.976 mg/L, and color intensity value of 0.173.
Pemanfaatan Hidrofobik Deep Eutectic Solvents dalam Penyisihan Dimetoat, Klorpirifos, dan Profenofos pada Buah Tomat dan Sayur Brokoli Daely, Axel Try Iddo; Manurung, Renita
Jurnal Teknik Kimia USU Vol. 9 No. 1 (2020): Jurnal Teknik Kimia USU
Publisher : Talenta Publisher (Universitas Sumatera Utara)

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (307.753 KB) | DOI: 10.32734/jtk.v9i1.3464

Abstract

Organophosphate insecticide is a type of pesticide that is commonly used, where this pesticide can be toxic to environmental organisms even to humans. Hydrophobic Deep Eutectic Solvent (DES) is a new generation nonpolar solvent of ionic liquids because it has better physical properties and chemical properties so that it can be used in the extraction process. DES was synthesized at 50 oC for 15 minutes with a stirring speed of 300 rpm and a molar ratio of Dl-menthol: lauric acid varied from 1: 1, 2: 1, and 3: 1. Pesticide removal is done by mixing 5 ml of DES with 200 ml of aquadest and then Tomatoes and Broccoli vegetables are washed with the solution. DES characteristics are done by analyzing the shape and measuring the freezing point, density and viscosity of DES. The concentration of pesticide residues was analyzed using Gas Chromatography-Mass Spectrometer (GC-MS). The highest elimination of pesticides obtained with DES hydrophobic which has a molar ratio of dl-menthol: lauric acid is 3: 1 where the highest elimination of pesticides in Tomatoe is 44.82% for Dimethoate pesticide, 84.1% for Chlorpyrifos pesticide, and 83.72% for Profenofos pesticide and Broccoli 35.19% for Dimetoat pesticide, 64.64% for Chlorpyrifos pesticide, and 55.28% for Profenofos pesticides.
Aplikasi Pelarut Eutektik K2CO3-Gliserol pada Ekstraksi Pigmen Antosianin dari Kulit Manggis (Garcinia mangostana Linn.) Asni, Hazima; Manurung, Renita; Bonella, Dian
Jurnal Teknik Kimia USU Vol. 9 No. 2 (2020): Jurnal Teknik Kimia USU
Publisher : Talenta Publisher (Universitas Sumatera Utara)

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (266.79 KB) | DOI: 10.32734/jtk.v9i2.3562

Abstract

Mangosteen peel (Garcinia mangostana Linn.) contains 593 ppm of anthocyanin. Anthocyanin pigment from mangosteen peel (Garcinia Mangostana Linn.) can be used as an alternative to synthetic dyes. Eutectic solvents are the latest development in extraction technology to extract anthocyanin from its source. The solvent used is pottasium carbonate-glycerol based eutectic solvent. The purpose of this study was to determine the effect of eutectic solvents on the extraction of anthocyanin pigments from mangosteen peel. This research consists of 2 treatment factors namely rmolar ratio of K2CO3: glycerol of 1: 5, 1: 6, and 1: 7 and material: solvent ratio of 1: 4, 1: 6 and 1: 8. Anthocyanin content and color intensity were analyzed using a Spectrophotometer UV-Vis.  Extraction using K2CO3 : glycerol eutectic solvent at a ratio of 1: 7 and the ratio of material: solvent 1: 8 produced the best treatment with extract yield of 46%; anthocyanin content of 263.976 mg/L, and color intensity value of 0.173.
Pengolahan dan Pengawetan Hasil Laut Dengan Metode Asap Cair Di Desa Bagan Serdang Yustira, Ayuni; Nasution, Halimatuddahliana; Harahap, Hamidah; Manurung, Renita
Sewagati Vol 9 No 2 (2025)
Publisher : Pusat Publikasi ITS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j26139960.v9i2.2314

Abstract

Objek pengabdian kepada masyarakat ini adalah para nelayan di Desa Bagan Serdang Kecamatan Pantai Labu Kabupaten Deli Serdang. Pengabdian ini berfokus pada proses pengolahan dan pengawetan sumber daya alam hasil laut berupa ikan. Produktivitas ikan yang tinggi di Desa Bagan Serdang mendorong masyarakat bermata pencaharian sebagai nelayan untuk memanfaatkan sumber daya alam hasil laut yang tidak habis terjual dan tidak termanfaatkan dengan baik melalui proses pengawetan menjadi produk ikan asap yang unggul dan bernilai jual. Selama ini, sumber daya alam hasil laut tangkapan melaut hanya dijual di pasar dan sisanya tidak termanfaatkan dan dibuang begitu saja sehingga mencemari ekosistem perairan, hal ini terjadi karena mitra belum memahami bagaimana proses pengolahan dan pengawetan yang tepat untuk sumber daya alam hasil laut, tim pengabdian menawarkan proses pengawetan dengan metode asap cair. Pengolahan dan pengawetan ikan dengan metode asap cair akan menghasilkan produk ikan asap yang tahan dalam jangka panjang. Metode yang digunakan dalam pengabdian ini yaitu sosialisasi dan edukasi, pelatihan teknologi pengawetan asap cair, praktik dan pendampingan, penggunaan dan perawatan peralatan, packaging dan labeling kemasan ikan asap. Manfaat yang diperoleh oleh mitra adalah memanfaatkan secara optimal ikan yang tidak termanfaatkan menjadi produk ikan asap yang bernilai jual, membentuk masyarakat yang mandiri dan kehidupan yang lebih baik, meningkatkan keterampilan kelompok mitra dalam pengolahan dan pengawetan sumber daya alam hasil laut sehingga berpengaruh terhadap peningkatan taraf hidup masyarakat serta terciptanya ketentraman dan kenyamanan dalam kehidupan bermasyarakat.
Pemanfaatan Minyak Jelantah Pada Pembuatan Lilin Aromaterapi Di SMP Yayasan Pendidikan Islam Haji Masri (YPIHM) Darul Ilmi Medan Parinduri, Sri Zahrani Dwi Mauliyah; Manurung, Renita; Yustira, Ayuni; Atikah, Nurul
Sewagati Vol 9 No 2 (2025)
Publisher : Pusat Publikasi ITS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j26139960.v9i2.2641

Abstract

Pengabdian kepada masyarakat dengan skema kemitraan ini dilaksanakan di SMP Yayasan Pendidikan Islam Haji Masri (YPIHM) Darul Ilmi Medan. Pengabdian ini dilaksanakan guna meningkatkan pemahaman dan kreativitas siswa dalam memanfaatkan minyak jelantah yang selama ini hanya dibuang  ke saluran air sehingga hal ini mencemari ekosistem lingkungan perairan sehingga diperlukan sebuah metode pemanfaatan minyak jelantah untuk diolah menjadi sebuah produk yang bernilai jual yaitu lilin aromaterapi. Pada pengabdian ini kelompok mitra akan dilatih mengenai proses pemanfaatan minyak jelantah menjadi produk lilin aromaterapi yang unik dan memiliki nilai jual, merupakan limbah rumah tangga yang tidak diolah dan termanafaatkan kembali. Manfaat yang diperoleh dari kegiatan ini berupa produk lilin aromaterapi yang unik dan memiliki nilai jual yang dapat meningkatkan taraf kehidupan mitra sehingga terciptanya kemandirian sejak dini serta mendorong rasa kewirausahawan dalam diri untuk dapat menciptakan ide – ide baru. Kegiatan workshop yang dilakukan berjalan dengan baik yang dilihat dari antusiasme yang tinggi dari siswa dan guru. Kegiatan pengabdian ini mengedukasi ilmu – ilmu baru mengenai ilmu bahan dan kimia organik dari sampel yang digunakan dan memberikan keterampilan praktis dalam proses produksi lilin, termasuk pencampuran aroma dan pencetakan. Hal ini sesuai yang disampaikan oleh  siswa setelah melakukan kegiatan workshop. Keberlanjutan program ini akan dilakukan dengan pendataan terhadap siswa yang telah mengimplementasikan pemanfaatan minyak jelantah sebagai bahan baku dalam pembuatan lilin aroma terapi. Selain itu, dapat mendirikan unit usaha kecil di sekolah yang mengelola produksi dan penjualan lilin aromaterapi dari minyak jelantah sebagai kegiatan kewirausahaan siswa.
Introduction of GIS software (Geographical information system) as a life Teachers and Students / imedium School for Namira Medan Kadreni, Emilia; Mulia, Ahmad Perwira; Pandia, Indra Jaya; Harahap, Hamidah; Manurung, Renita
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 (211.844 KB) | DOI: 10.32734/abdimastalenta.v4i2.4089

Abstract

Namira High School is one of the favorite schools in the city of Medan, with the number of students graduating and being accepted at the State University increasing from year to year. To further foster and improve the quality and creativity of Namira High School Students and Teachers, a technology-based training program for the Geographical Information System (GIS). Community Service Program is part of the Tri Dharma College, in collaboration with High School partners Namira, is expected to be able to increase learning in the Computer Laboratory to learn the concepts and technology of GIS which is relatively new. By attending this training, students get the opportunity to work more by utilizing geospatial-based information. The use of Geographical Information System (GIS) in various fields is very real, because GIS provides various facilities that are relatively easy to do. With the open source GIS software training, it is hoped that students and teachers at Namira High School will know the importance of geography literacy and its use in various fields.
PROSES PENGOLAHAN PAKAN UNGGAS DARI TEPUNG IKAN DI DESA SENTANG KECAMATAN TELUK MENGKUDU KABUPATEN SERDANG BEDAGAI: Indonesia Harahap, Hamidah; Manurung, Renita; Nasution, Halimatuddahliana; Masyithah, Zuhrina; Yustira, Ayuni
Jurnal Abdimas Madani dan Lestari (JAMALI) Volume 06, Issue 02, September 2024
Publisher : UII

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20885/jamali.vol6.iss2.art10

Abstract

This research aims to create a poultry feed formulation that complies with SNI 01-3931-2006 standards regarding broiler poultry feed, where the process of making poultry feed includes four main ingredients, namely fish meal, corn, rice bran and vitamins. In this research there are two main processes, namely the process of making fish meal and the process of making poultry feed. Fish meal is a raw material for making poultry feed because it has high protein content. Fish meal in the process of making poultry feed is obtained from processing fish caught at sea by fishermen. This research activity was carried out in Sentang Village, Teluk Mengkudu District, Serdang Berdagai Regency. This location was chosen because it is near the sea and has abundant natural resource potential for marine products. The resulting poultry feed is then analyzed including water content, protein, oil content, ash content, crude fiber, calcium and protein. Poultry feed analysis was carried out in the Palm Oil Research Center (PPKS) laboratory. The analysis results showed water content 30.90%, protein 11.70%, oil content 3.17%, ash content 5.16%, crude fiber 17.32%, calcium 182.41 ppm and phosphorus <0.01 ppm.
Co-Authors Adventi, Fransiska Asni, Hazima Atikah, Nurul Ayuni Yustira Bonella, Dian Daely, Axel Try Iddo Hamidah Harahap, Hamidah Husna, Zakiatul Indra Jaya PAndia, Indra Jaya Juliza Hidayati Kadreni, Emilia Mulia, Ahmad Perwira Nasution, Halimatuddahliana Parinduri, Sri Zahrani Dwi Mauliyah Parsaulian R, Rahmad Rosdanelli Hasibuan Siregar, Alwi Gery Agustan Suhaila, Rif'ati Zuhrina Masyithah