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All Journal International Journal of Power Electronics and Drive Systems (IJPEDS) Jurnal Ilmu dan Teknologi Kelautan Tropis Diponegoro Journal of Management Jurnal Pendidikan Teknik Mesin Konversi ELINVO (Electronics, Informatics, and Vocational Education) Prosiding Seminar Nasional Sains dan Teknologi Terapan IDENTIFIKASI: Jurnal Ilmiah Keselamatan, Kesehatan Kerja dan Lindungan Lingkungan Seminar Nasional Lahan Suboptimal Indonesian Journal of Engineering and Technology (INAJET) J-SAKTI (Jurnal Sains Komputer dan Informatika) SWARNA Madani: Multidisciplinary Scientific Journal Journal of Engineering Science and Technology Management IWTJ : International Water Transport Journal Indonesian Proceedings and Annual Conference of Islamic Law And Sharia Economic (IPACILSE) Jurnal Rekayasa Mesin
Aji Nugroho
Teknik Kimia, Fakultas Teknik Universitas Muhammadiyah Jakarta
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Nutritional Value and Heavy Metal Content of Crab Meat and its Byproduct White Mud Crab Scylla paramamosain Ardiansyah, Ardi; Nugroho, Aji; Meirinawati, Hanny
Jurnal Ilmu dan Teknologi Kelautan Tropis Vol. 15 No. 1 (2023): Jurnal Ilmu dan Teknologi Kelautan Tropis
Publisher : Department of Marine Science and Technology, Faculty of Fisheries and Marine Science, IPB University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29244/jitkt.v15i1.40215

Abstract

Kepiting bakau merupakan komoditas perikanan yang memiliki nilai ekonomi tinggi dan kaya akan aspek gizi seperti asam amino esensial, vitamin, mineral, dan asam lemak. Tingginya konsentrasi logam berat di habitat alami kepiting bakau dapat terakumulasi dan membahayakan kesehatan apabila dikonsumsi. Namun demikian, informasi mengenai kandungan nutrisi dan logam berat dari daging dan produk sampingan pada kepiting bakau masih terbatas. Tujuan dari penelitian ini adalah untuk membandingkan komponen bermanfaat dari daging dan produk sampingan Scylla paramamosain serta untuk menyelidiki keamanan pangan dari kontaminasi logam berat. Analisis kadar proksimat, Vitamin A, D, dan E menggunakan HPLC, kadar vitamin B1, B2, C, dan profil asam amino ditentukan dengan menggunakan UPLC, vitamin B12 ditentukan dengan menggunakan LC-MS, mineral dan logam berat ditentukan dengan metode standar AOAC. Selain itu, asam lemak dianalisis dengan kromatografi gas. Hasil penelitian menunjukkan bahwa protein per gram sebagai mayoritas kandungan masing-masing bentuk (10,24% dalam daging kepiting dan 12,47% dalam produk sampingan). Vitamin yang terdeteksi dari sampel adalah vitamin B2, B12, E. Sebaliknya, logam berat yang di analisis dalam penelitian ini tidak terdeteksi. Asam L-Glutamat adalah komposisi asam amino yang paling melimpah (11037,79 mg/kg daging kepiting dan 15993,22 mg/kg produk sampingan). Selain itu, asam lemak omega-3, asam lemak omega-6, dan omega- 9 asam lemak juga terkandung dalam spesies ini. Hal ini menunjukkan bahwa Scylla paramamosain merupakan sumber pangan yang bermanfaat dan aman untuk dikonsumsi.
Analisis Komposisi Bahan Bakar Terhadap Proses Pembakaran pada Kompor Berbahan Bakar Oli Bekas Mubin, Moh. Nurul; Riandadari, Dyah; Wulandari, Diah; Nugroho, Aji
Madani: Jurnal Ilmiah Multidisiplin Vol 4, No 1 (2026): February 2026
Publisher : Penerbit Yayasan Daarul Huda Kruengmane

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5281/zenodo.18437715

Abstract

Waste management issues have become a national concern with serious impacts on social, economic, health, and environmental aspects. The low level of awareness among communities and industrial actors in managing waste has contributed to environmental pollution. Along with the development of cities and regions, the volume of waste including used lubricating oil from vehicles and motorized machinery continues to increase. Not only in large cities, but small workshops in rural areas also generate used oil waste, resulting in its widespread distribution across Indonesia. This study employed a field experimental method. The approach was conducted by testing fuel mixture compositions in a stove fueled by used oil to observe the effect of fuel composition on the combustion process. The results indicate that variations in fuel composition significantly affect combustion quality. In the mixture of used oil and kerosene, a ratio of 40:60 produced the highest flame temperature of 378°C, the fastest cooking time of 4.05 minutes, and a blue flame indicating more optimal combustion. In contrast, the 60:40 mixture resulted in the lowest temperature of 318°C, the longest cooking time of 5.07 minutes, and a predominantly orange flame. For the mixture of used oil and biodiesel (biosolar), the 40:60 ratio also demonstrated the best performance, achieving the highest flame temperature of 380°C, the fastest cooking time of 3.52 minutes, and a stable blue flame.
Redesign Mesin Belt Sander Meja Portable dengan Metode Quality Function Deployment (QFD): Belt Sander Redesign, Portable, Quality Function Deployment (QFD), House of Quality (HoQ) Andrew Sabbathinus Putra Subagio, Andrew; Riandadari, Dyah; Mahendra Sakti, Arya; Nugroho, Aji
Jurnal Rekayasa Mesin Vol 11 No 01 (2026): JRM April 2026 (In Press)
Publisher : Universitas Negeri Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26740/jrm.v11i01.75243

Abstract

Rapid technological developments demand increased efficiency and productivity in various industrial sectors, including the woodcraft industry. The sanding process, which is generally still done manually, results in long processing times and inconsistent results. Belt sanders are a solution to increase efficiency, but most designs in circulation are still large and stationary, making them less suitable for use by small businesses or home workshops. This study aims to redesign a portable benchtop belt sander using the Quality Function Deployment (QFD) method to ensure the resulting design meets consumer needs and desires. Through the QFD method, the voice of the customer is translated into technical product characteristics using the House of Quality (HoQ) matrix. The research method used is quantitative with a product design approach based on the Ulrich and Eppinger model, which includes four stages: planning, development, design, and detailed design. Data analysis is carried out through instrument validity and reliability tests, and processing of QFD results to determine key technical specifications. The results of this study are expected to produce a portable benchtop belt sander design that has better ergonomics, high flexibility, and is able to increase sanding process efficiency for small to medium-scale users.
Analisis Pengaruh Kecepatan Putaran Rol Terhadap Efisiensi Pengupasan Pada Mesin Pengupas Sabut Kelapa Tri agung; Riandadari, Dyah; Sakti, Arya Mahendra; Nugroho, Aji
Jurnal Rekayasa Mesin Vol 11 No 01 (2026): JRM April 2026 (In Press)
Publisher : Universitas Negeri Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26740/jrm.v11i01.75883

Abstract

Abstract: This study aims to analyze the effect of roller rotational speed variations on the efficiency, capacity, and quality of coconut husk peeling in a coconut husk peeling machine using small- and large-sized coconuts as test objects. The roller rotational speed variations applied were 120 rpm, 150 rpm, 180 rpm, 210 rpm, and 240 rpm, where the rotational speed served as the main parameter influencing peeling time, process success rate, and the potential for coconut damage. The research employed an experimental method through direct performance testing of the machine, with observation parameters including peeling time, machine capacity (fruits/hour), and peeling efficiency (%). The test results showed that at rotational speeds of 120 rpm and 150 rpm, the peeling efficiency of small coconuts reached 100%, while the peeling efficiency of large coconuts remained relatively low at 70% and 60%, respectively. At a rotational speed of 180 rpm, the peeling efficiency of large coconuts increased to 100%, with a machine capacity of 563 fruits/hour. Increasing the roller rotational speed to 210 rpm and 240 rpm further enhanced the machine capacity to 784 fruits/hour and 849 fruits/hour, respectively, while reducing the average peeling time to 4.2 seconds. However, at these higher speeds, the peeling efficiency of small coconuts decreased due to the increased mechanical forces acting on the material. Based on the results, a roller rotational speed of 180 rpm was identified as the most optimal condition, as it provided high peeling efficiency, adequate machine capacity, and good peeling quality without causing significant damage to the coconuts.
Strength Analysis of Micro Wind Turbine Blade Structure Made of Composite Material Using Finite Element Analysis Maulana, Rafi Arifin; Puspitasari, Dewi; Abdi, Ferly Isnomo; Nugroho, Aji
Journal of Engineering Science and Technology Management (JES-TM) Vol. 6 No. 1 (2026): Maret 2026
Publisher : Journal of Engineering Science and Technology Management

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

Abstract

This study analyzes the Structural Strength of micro wind turbine blades made of CFRP and GFRP composites using the Finite Element Analysis (FEA) method. Aerodynamic loads are obtained from QBlade simulations at a wind speed of 12 m/s and applied as non-uniform pressure on the blades. Composite modeling is performed with ANSYS Composite PrepPost (ACP) using a 4-ply laminated composite configuration with fiber orientations of 0°, 45°, −45°, and 90° and varying ply thicknesses along the blade. Static analysis shows that the CFRP blade produces a Von Mises stress of 15,648 MPa with a maximum displacement of 3.1616 mm, while the GFRP blade produces a stress of 12,786 MPa with a maximum displacement of 6,947 mm. These results indicate that CFRP has better Structural stiffness than GFRP, making it more suitable for micro wind turbine blade applications that require high Structural stability.
Co-Authors Achmad Nugrahantoro Aldio, Bintang Tri Andrew Sabbathinus Putra Subagio, Andrew Ardiansyah, Ardi Armelia Putri, Trida Arya Mahendra Sakti Asyroh, Muhammad Fakhril Kaffah Athiek Sri Redjeki Azam Muzakhim Imamuddin Aziz, Dadang Abdul Bekti Wulandari Caecilia Sri Haryanti Dahnia, Lilis Diah Wulandari Dwi Susanto Dyah Riandadari Faizah, Isti Ferly Isnomo Abdi Fitri Ganda, Andita Nataria Ganda, Andita Ganda, Andita Nataria Fitri Gema Kharismajati Husaini, Fahrian Janti Soegiastuti khuluq ma'addin, khusnul Maulana, Rafi Arifin Ma’addin, Khusnul Khuluq Meirinawati, Hanny Mohammad Noor Hidayat Mubin, Moh. Nurul Munir, Abdullah Faiq Noeryanto, Noeryanto Noor Sulistiyono Nur Rohman, Muhammad P. M. Winarno Periyanto, Ari Peryanto, Ari Pustika, Rita Rachman Arief, Rachman Rahmadania, Ella Ramadhani A, Gilang Ratna Ika Putri Retno Cahya Mukti Rizal Hari Magnadi Rizky Ramadhani, Muhammad Rusydi Umar Siswahyudianto Sry Lidya, Jessica Sutrisno, Slamet Prasetyo Sutrisno, Sri Kelana Suwahyo - Tijanul Uluum, Ahmad Tri agung Wildan, Muhammad Wildan Satrio Bimo