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All Journal Reaktor TEKNIK METANA Jurnal Ilmu Lingkungan JURNAL TEKNOLOGI KIMIA DAN INDUSTRI Bulletin of Chemical Reaction Engineering & Catalysis Majalah Ilmiah MOMENTUM JITEK (Jurnal Ilmiah Teknosains) Jurnal Aplikasi Teknologi Pangan Communications in Science and Technology Abdimas UNWAHAS : Jurnal Pengabdian Masyarakat UNWAHAS Jurnal Inovasi Teknik Kimia ASEAN Journal of Chemical Engineering Jurnal Profesi Insinyur Indonesia Bulletin of Chemical Reaction Engineering & Catalysis
Nita Aryanti
Chemical Engineering Department, Faculty Of Engineering, Diponegoro University, Jl. Prof. Sudarto, Tembalang-Semarang, 50275, Telp/fax: (024)7460058/(024)76480675
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Immunology & microbiology Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering Medicine & Pharmacology Social Sciences Transportation Veterinary Other

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Pemeliharaan Rutin Ruas Jalan Dumai-Lubuk Gaung Sinaboi Provinsi Riau Anwar, Khairil; Daliman, Daliman; Aryanti, Nita
Jurnal Profesi Insinyur Indonesia Vol 2, No 2 (2024): JPII
Publisher : Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/jpii.2024.21730

Abstract

Kerusakan jalan merupakan permasalahan serius yang dihadapi oleh sebagian besar wilayah yang ada di Indonesia. Kondisi tersebut juga dialami oleh Kota Dumai Provinsi Riau di mana hampir separuh dari ruas jalan yang ada di kota ini mengalami kerusakan baik itu kondisi berat, sedang, maupun ringan. Upaya pemeliharaan jalan, khususnya di ruas Dumai-Lubuk Gaung-Sinaboi sepanjang hampir 4 kilometer dilakukan untuk memperbaiki kondisi ini. Penelitian dilakukan pada titik fokus STA 1+400 – STA 1+700 ruas jalan yang mengalami kerusakan dan sedang dilakukan perbaikan. Metode yang digunakan adalah kualitatif dan kuantitatif, di mana penelitian ini menyelidiki aspek-aspek pemeliharaan jalan, dampak pada infrastruktur dan pelayanan transportasi. Melalui survei lapangan, wawancara, pembahasan tentang tahapan pelaksanaan pekerjaan dan analisis data lapangan, hasil penelitian memberikan gambaran kondisi jalan sebelum dan setelah pemeliharaan. Evaluasi menyeluruh ini memberikan pemahaman mendalam tentang kualitas pekerjaan pemeliharaan, ketepatan waktu pelaksanaan, alokasi anggaran, dan dampaknya pada kemantapan jalan. Rekomendasi diharapkan dapat memberikan masukan bagi para pemangku kepentingan dan pengambil keputusan untuk meningkatkan efektivitas dan efisiensi pemeliharaan, agar memberikan manfaat jangka panjang kepada masyarakat pengguna jalan. Kata kunci: kemantapan jalan, kerusakan jalan, pelayanan transportasi, pemeliharaan jalan
Microwave-assisted extraction of eco-friendly surfactant from Jatropha curcas for sustainable solubilization of reactive dyes Aryanti, Nita; Khoiriyah, Lu'luatul; Nafiunisa, Aininu; Ratnawati; Widiasa, I Nyoman; Zakki, Abdurrahman; Adina, Alifia Rizki
Communications in Science and Technology Vol 10 No 1 (2025)
Publisher : Komunitas Ilmuwan dan Profesional Muslim Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21924/cst.10.1.2025.1636

Abstract

Natural surfactants derived from plant-based sources, such as saponins, remain underexplored. This study developed the extraction of saponins from Jatropha curcas leaves using microwave-assisted extraction (MAE) finding that the optimized condition of 3 min, 363.15 K, 30 mL/g ratio of extraction yielded the highest saponin content of 35.04 mg/g. The FTIR and HPLC analyses confirmed the structural similarity between the extract and commercial saponin. Additionally, the extracted saponins effectively solubilized Remazol Red RB and Blue TQ with solubilization efficiency increasing proportionally to the surfactant concentration. The surfactant properties of the extracted saponin were also confirmed by its ability to form foam and high critical micellar concentration, which revealed the potential for material valorization. This work demonstrated that the development of plant-based surfactants provides a sustainable alternative to synthetic surfactants. Moreover, valorizing natural materials contributes to the advancement of eco-friendly technologies, particularly in waste treatment and water purification applications.
Composite Encapsulating Agent for NaFeEDTA Microencapsulation Using Spray Drying Method Handayani, Noer Abyor; Aryanti, Nita; Haryani, Kristinah; Hargono, Hargono; Adina, Alifia Rizki; Yuliani, Sari; Adristy, Vania Zulfa
Reaktor Volume 25 No.2 August 2025
Publisher : Department of Chemical Engineering, Faculty of Engineering, Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/reaktor.25.2.%p

Abstract

Iron microencapsulation is one of the solutions to protect iron from reacting with other substances that result in quality declines of fortified food products. The coating materials used should be appropriate for the specified encapsulation process. This study combined glucomannan and maltodextrin as coating materials and added HPMC as an additive to encapsulate NaFeEDTA. The results showed that such a combination could increase the encapsulation efficiency. The morphologies of the resulting microcapsules obtained from four formulations applied in this study were identical; numerous wrinkles appear on the particle’s surfaces due to the presence of HPMC. All formulations had a narrow size distribution with an average particle size between 105 and 111 µm, thermal resistance up to a temperature of ± 200°C, and the same functional groups but with different intensities. The NaFeEDTA included in all formulations had a bioavailability value of 2.3 - 2.9%. The best formulation, based on the gastrointestinal digestion simulation, was shown by the formulation with a glucomannan:maltodextrin ratio of 2:3 (in 1% w/v coating material) with a release percentage of 64.28% in SGF solution and an increase of 2.27% in SIF solution. To prevent anemia, ± 400 mg of iron microcapsules resulting from the best formulation in this study are required to meet 75% of the daily intake.
Co-Authors Adina, Alifia Rizki Adristy, Vania Zulfa Aininu Nafiunisa Aininu Nafiunisa Aji Prasetyaningrum Amelia Maharani Amelia Maharani Andri Cahyo Kumoro Anisah Nirmala Cindika Kusuma Dewi Daliman, Daliman Danny Soetrisnanto Dessy Kurniawati Dessy Kurniawati Didi Dwi Anggoro Diyono Ikhsan Dyah Hesti Wardhani Fathia Mutiara Willis Fatoni Nugroho Febrian Murvianto Fella Ryanitha A. Hargono Hargono Henny Ikka Safitri Heri Cahyono I Nyoman Widiasa Indah Prihatiningtyas Ken Dimas Yogananda Khairil Anwar Kharis Yohan Abidin, Kharis Yohan Khoiriyah, Lu'luatul Kristinah Haryani Luqman Buchori Maria Widyasmara Nafiunisa, Aininu Noer Abyor Handayani Permanadewi, Indrasukma Qinchung Yuan Ragil Darmawan SAC RATNAWATI Richard Andrew Williams Setia Budi Sasongko Wida Rahmawati Wida Rahmawati Yovita Asih Kusumastuti Yovita Asih Kusumastuti Yuliani, Sari Yusiana Dewi Afriyani Zakki, Abdurrahman