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All Journal Jurnal Sains dan Seni ITS Jurnal Teknologi Sinergi EduChemia: Jurnal Kimia dan Pendidikan Jurnal Teknik Otomotif Kajian Keilmuan dan Pengajaran Adimas : Jurnal Pengabdian Kepada Masyarakat JEECAE (Journal of Electrical, Electronics, Control, and Automotive Engineering) J-ADIMAS (Jurnal Pengabdian kepada Masyarakat) Jurnal Layanan Masyarakat (Journal of Public Service) Jurnal Geuthee International Journal of Science, Engineering and Information Technology Automotive Experiences Jurnal Abdimas Dosma Nusantara of Engineering (NOE) Madani: Multidisciplinary Scientific Journal Nanggroe: Journal Of Scholarly Service Nanggroe: Journal of Scholarly Service Jurnal Abdimas Dosma
Agus Choirul Arifin
Politeknik Negeri Madiun
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Pelatihan Pembuatan Mesin Spinner Kripik Ubi Madu Berpenggerak Motor Listrik Pada Karang Taruna Orpega 02 (Organisasi Pemuda Erlangga) Desa Wisata Tawangmangu Jawa Tengah yoga fakhrudi; Kholis Nur Faizin; Agus Choirul Arifin; Indah Puspitasari; Rahayu Mekar Bisono; Yuli Astuti
JURNAL ABDIMAS DOSMA (JAD) Vol. 2 No. 2 (2023): JUNI
Publisher : IKATAN ALUMNI DOSEN MAGANG KEMENRISTEKDIKTI TAHUN ANGKATAN 2017

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.70522/jad.v2i2.35

Abstract

In the food processing industry, such as various types of crackers, various fried peanuts and various other packaged foods, the durability and durability of these food products must of course be given great attention. One of the reasons why various foods are not durable and expire quickly is the high oil content contained in these various foods. Manually draining oil is certainly not effective for the production of various foods in large quantities on an industrial scale. For that we need a tool or machine that can drain and reduce the oil content that is still contained in these various foods. The machine used is honey sweet potato chip spinner machine. Tawangmangu Village, Tawangmangu District, Central Java is known as a tourist area which is located on the slopes of Mount Lawu with various kinds of tourist beauty presented. Tourists often come to enjoy the natural beauty of Tawangmangu which is also rich in natural products, one of which is sweet potato honey. However, local residents cannot maximize honey sweet potato as a special food which is used as souvenirs for tourists, so there is a need for an effort to engineer food processing made from honey sweet potato in the form of procurement and training of electric powered honey sweet potato chip spinner machines for Karang Taruna Orpega 02 (Organization Erlangga Youth) in the Tawangmangu Village, Central Java. At the time of implementation, Mitra's enthusiasm was very large to take part in a series of training events for making food slicer spinners. There were 20 members of the youth group who took part in a series of training activities.
Optimization of KOH Catalyst Concentration and Reaction Temperature for Biodiesel Production from Waste Cooking Oil Achmad Aminudin; Bintang Arisendy; Agus Choirul Arifin; Nur Ihda Farikhatin Nisa
EduChemia: Jurnal Kimia dan Pendidikan Vol 11, No 1 (2026)
Publisher : Department of Chemistr Education Faculty of Teacher Training and Education Universitas Su

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30870/educhemia.v11i1.32452

Abstract

This study aims to analyze the effects of variations in the KOH catalyst concentration and reaction temperature on the yield and characteristics of biodiesel produced from waste cooking oil through a transesterification process. The KOH catalyst concentration was varied at 0.5%, 1%, and 1.5%, while the reaction temperatures were set at 60°C, 65°C, and 70°C, respectively. The oil-to-ethanol molar ratio was maintained at 1:6, with a reaction time of 90 minutes and a stirring speed of 500 rpm. The results show that both the catalyst concentration and the reaction temperature influence the biodiesel yield and physical properties, including the density, viscosity, flash point, and calorific value. The highest biodiesel yield of 93.36% was achieved at a KOH concentration of 1% and a reaction temperature of 65°C. The biodiesel density ranged from 844.7 to 870.2 kg/m³, meeting the SNI 7182:2024 standard. The lowest viscosity, 4.78 cSt, was obtained at KOH concentrations of 1.5% and 70°C and remained within the acceptable standard range. All the samples exhibited flash points above 153.5°C. The highest calorific value, 49,682 J/g, was recorded at a KOH concentration of 1.5% and a reaction temperature of 70°C. Overall, the optimal conditions for maximum yield were 1% KOH and 65°C, whereas a higher reaction temperature of 70°C enhanced the energy quality of the biodiesel.
Co-Authors , Yoga Ahdiat Fakhrudi Achmad Aminudin Ade Reza Febri Agus Ma’ruf Prasetya Alfi Tranggono Agus Salim Alfi Tranggono Agus Salim Aziz R., M. Shafawallah Al. Bias Nur Elmira Bintang Arisendy Budi Artono Budi Triyono Budi Triyono Deni Nur Fauzi Dharmawangsa, Rendy Vito Dimas Nur Prakoso Elmira, Bias Nur F, Yoga Ahdiat fakhrudi, yoga Fakhrudi, yoga ahdiat Farid Majedi Farid Majedi Farid majedi Farid Majedi, Farid Gatut Yudoyono Hanifah Nur Kumala Ningrum INDAH PUSPITASARI Indah Puspitasari Kanjeng Sunan Lawu Kholis Nur Faizin Kholis Nur Faizin, Kholis Nur M. Shafwallah Al. Aziz. R Mitha Anandya Qathrunnada Muhammad Narrokhim Amrullah Nana Ainiya Khalidah Nana Ainiya Khalidah Noorsakti Wahyudi Noorsakti Wahyudi Noorsakti Wahyudi Nur Ihda Farikhatin Nisa Nur, Fachrul Hermansyah Nurwijayanti Putra, Roby Mahendra Putri, Koes Shinta Mashury R. Gaguk Pratama Yudha Raden Mohamad Herdian Bhakti Rahayu Mekar rahayu mekar bisono Rahayu Mekar Bisono Rahayu Mekar Bisono Rahayu Mekar Bisono, Rahayu Mekar Roby Mahendra Putra Septian Nurfaranto Shofyan Dwi Saputro Sundaru Guntur Wibowo Teuku Multazam Wibowo, Sundaru Guntur Wicaksono, Darma Arif Wida Rezika Wida Yuliar Rezika, Wida Yuliar Yoga Ahdiat F Yoga Akhdiat Fakhrudin yoga fakhrudi Yuli Astuti Yuli Astuti Yuli Prasetyo Yuwono, Indarto