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All Journal Jurnal Teknik ITS Jurnal Teknik Kimia Jurnal Fisika Unand Jurnal IPTEK Konversi Jurnal Kimia Riset BERDIKARI : Jurnal Inovasi dan Penerapan Ipteks Akta Kimia Indonesia G-Tech : Jurnal Teknologi Terapan Nusantara Science and Technology Proceedings International Journal of Eco-Innovation in Science and Engineering (IJEISE) Jurnal PkM (Pengabdian kepada Masyarakat) AJARCDE (Asian Journal of Applied Research for Community Development and Empowerment) Jurnal Pengbdian Teknik Mesin Madani: Jurnal Pengabdian Masyarakat dan Kewirausahaan Joong-Ki Joong-Ki
Yogaswara, Rachmad Ramadhan
Program Studi Teknik Kimia, Universitas Pembangunan Nasional Veteran Jawa Timur
Religion Agriculture, Biological Sciences & Forestry Arts Humanities Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Decision Sciences, Operations Research & Management Earth & Planetary Sciences Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Industrial & Manufacturing Engineering Law, Crime, Criminology & Criminal Justice Materials Science & Nanotechnology Mechanical Engineering Medicine & Pharmacology Physics Social Sciences Other

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Aplikasi Metode Microwave Hydrodistillation pada Ekstraksi Minyak Atsiri dari Bunga Kamboja (Plumeria alba) Nove Kartika Erliyanti; Erwan Adi Saputro; Rachmad Ramadhan Yogaswara; Elsa Rosyidah
Jurnal IPTEK Vol 24, No 1 (2020)
Publisher : LPPM Institut Teknologi Adhi Tama Surabaya (ITATS)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31284/j.iptek.2020.v24i1.865

Abstract

The aim of this study is to determine the effect of microwave power and solvent volume to the density of Frangipani essential oil, and to determine the yield effect of mass of raw material on Frangipani essential oil. Frangipani flowers that have been cut in the size of ± 2 cm are extracted in the microwave with a mass of 25 gr and 50 gr, volume of solvents is 300, 400, 500, and 600 ml. The extraction process uses microwave power of 300, 450, and 600 watt and the extraction time is three hours. The results showed that the effect of microwave power and the volume of solvent had a significant effect on the density of Frangipani flower essential oils. The result showed that the density is increase when the microwave power and the volume of solvent increase. The highest density is produced at 600-watt microwave power, 600 ml solvent volume, and 50 gram of Frangipani flower mass that is equal to 0.904 gram/ml. Yield decreases with increasing mass of raw material used. The highest yield was produced at 600-watt microwave power, 600 ml solvent volume, and 25-gram Frangipani mass, which is equal to 1.612%.C
TRANSESTERIFICATION OF BIODIESEL FROM KAPOK SEED OIL (Ceiba pentandra) Nove Kartika Erliyanti; Afida Kartika Sari; Achmad Chumaidi; Rachmad Ramadhan Yogaswara; Erwan Adi Saputro
Konversi Vol 10, No 2 (2021): Oktober 2021
Publisher : Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/k.v10i2.11247

Abstract

The purpose of this study was to determine the effect of KOH concentration and reaction time on the flash point and pour point of biodiesel from kapok seed oil. The biodiesel transesterification process is carried out in a batch reactor equipped with stirrer. The first step in this research is to reduce the free fatty acid content (esterification process). The second step is transesterification of biodiesel from kapok seed oil. The concentrations of KOH used in this research were 0.5, 1.0, 1.5, and 2.0% by weight of the oil and the reaction time were 0.25, 0.5, 1.0, and 1.5 hours. The operating conditions used in this study were a temperature of 60 oC and a pressure of 4 bar. The results showed that the concentration of KOH and reaction time had a significant effect on the flash point and pour point of biodiesel. The best flash point and pour point were obtained at a concentration of 0.5% KOH and a reaction time of 1.5 hours, which were 163 oC and -8 oC.
PENGENALAN TEKNIK DASAR BULU TANGKIS PADA ANAK – ANAK DI DUSUN CONGKOP, DESA KEBOANSIKEP, KABUPATEN SIDOARJO Erwan Adi Saputro; Rachmad Ramadhan Yogaswara; Nove Kartika Erliyanti
Jurnal PkM Pengabdian kepada Masyarakat Vol 5, No 1 (2022): Jurnal PkM: Pengabdian kepada Masyarakat
Publisher : Universitas Indraprasta PGRI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30998/jurnalpkm.v5i1.7336

Abstract

Bulu tangkis merupakan salah satu jenis olahraga yang memiliki banyak peminat khusunya anak – anak,  dan membutuhkan kemampuan fisik. Meskipun terbilang mudah untuk dilakukan, jika tidak dibekali teknik dasar yang benar, maka bulu tangkis dapat menyebabkan risiko cedera pada anak-anak. Oleh karena itu, tujuan dari kegiatan pengabdian masyarakat ini adalah memberikan pengenalan teknik dasar dalam bermain bulu tangkis pada anak – anak di Dusun Congkop, Desa Keboansikep, Kabupaten Sidoarjo. Metode pengabdian yang digunakan adalah ceramah dan pelatihan. Hasil dari kegiatan pengabdian masyarakat ini yaitu anak – anak dapat menambah wawasan dan skill mereka dalam bermain bulu tangkis. Kegiatan ini juga diharapkan mampu memotivasi mereka untuk menjaga kesehatan dengan rutin berolahraga
Mini-Review: Syngas Production Via Partial Oxidation of Methane Reaction and Its Potential Catalyst Silvana Dwi Nurherdiana; Reva Edra Nugraha; Rachmad Ramadhan Yogaswara; Hamzah Fansuri
Akta Kimia Indonesia Vol 6, No 2 (2021)
Publisher : LPPM, Institut Teknologi Sepuluh Nopember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j25493736.v6i2.10720

Abstract

Methane as a light gas was generally found in natural gas which was burned freely to gain a high quality of petroleum. This action truly impacted a worst condition in nature, namely greenhouse effect. This brief review described fundamental theory of the important process in methane conversion from natural gas into value-added chemical such as syngas (CO+H2). The methane conversion reaction was commonly divided into direct and indirect reaction. The indirect reaction such as partial oxidation of methane was mostly chosen due to the intermediate product (syngas) can easily generate many raw materials of petrochemicals. This paper also described a potential catalyst to be applied which in heterogeneous type such as perovskite oxide, metal oxide and zeolite.
Brief Overview of Perovskite Oxide: Synthesis and Its Performance as Oxygen Separator from Air Silvana Dwi Nurherdiana; Rachmad Ramadhan Yogaswara; Nove Kartika Erliyanti; Atika Nandini; Mutasim Billah; Sintha Soraya Santi; Hamzah Fansuri; Mohd Hafiz Dzarfan Othman; Yuly Kusumawati; Syafsir Akhlus
Nusantara Science and Technology Proceedings 2nd International Conference Eco-Innovation in Science, Engineering, and Technology
Publisher : Future Science

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

Abstract

The aims of this brief overview are providing the knowledge about the physical and chemical properties of perovskite oxides in various synthesis method and the correlation of its performance for separating oxygen from air. Perovskite oxide showed excellent conductor of ion and electron, simultaneously through oxygen lattice in the crystal structure. In the present review, we have presented the detail on the crystal structure and the factor that affect the pseudo-crystal, various synthesis method i.e., solid-state, sol-gel, combustion, and co-precipitation. It has been completed with the discussion of the characteristic and the mechanism of the perovskite to separate oxygen from air
Diversification of Processed Onion Products as the Iconic Product in Darurejo Village, Jombang Regency Silvana Dwi Nurherdiana; Reva Edra Nugraha; Rachmad Ramadhan Yogaswara; Handi Ramadhan; Muhammad Hakam; Wahyu Arif Dharmawan
Nusantara Science and Technology Proceedings International Seminar of Research Month 2021
Publisher : Future Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11594/nstp.2022.2450

Abstract

Darurejo Village, Plandaan District, Jombang is an onion horticulture area where the highest productivity level is in the Jombang Regency of 3990 kw and 38 kw/ha. However, the onion sales are not optimal so farmers often experience losses. Therefore, we service activities regarding the processing and management to enhance the effectiveness. Coinciding with the COVID-19 pandemic and the enactment of the government's decision to Implement Emergency Community Activity Restrictions (ECAR) the implementation of counseling is carried out online. The online activity was carried out through the WhatsApp Group, on Saturday, July 31, 2021, from 11.00-14.00 WIB, which was attended by 25 village cadres. This outreach activity was carried out by providing 2 materials, including basic knowledge of onion and the resulting products such as fried onion, onion baceman, and onion powder which have great potential to be widely sold, and the introduction of automatic peeling machines to increase the quantity and quality of productions through online and offline meeting on August 28, 2021. It is hoped that the community will be able to process and manage the onion shallot potential products.
Enhancing Productivity of UD Rahayu Food by Symmetrical Tofu Cutter Utilization Erwan Adi Saputro; Rachmad Ramadhan Yogaswara; Eristya Maya Safitri
Nusantara Science and Technology Proceedings International Seminar of Research Month 2021
Publisher : Future Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11594/nstp.2022.2454

Abstract

UD. Rahayu Food was one of pioneer on the special tofu production with soft texture called “tahu susu”. During pandemic of Covid-19, the productivity of UD. Rahayu Food was decreased and it had an impact on their sales. Optimalization of its production process by technology application would be one of the solutions for UD. Rahayu Food. The aims of this community service at UD. Rahayu Food is upgrading their productivity rate by production tools improvement. The production tool that was developed on this activity is symmetrical tofu cutter. This equipment was utilized for cutting of tofu symmetrically before being processed into “tahu susu”. Moreover, this cutter could speed up the slicing step process and their product quantity would be raised. Hopefully, provision of this symmetrical cutting tool could increase the income of UD. Rahayu Food during Pandemic Covid-19
Penggunaan Video Animasi Pembelajaran bagi Guru Sekolah Dasar Mu’tasim Billah; Titi Susilowati; Fransisca Asteria Nandra Febiola; Rina Yulianti; Rachmad Ramadhan Yogaswara; Nove Kartika Erliyanti; Erwan Adi Saputro
Berdikari: Jurnal Inovasi dan Penerapan Ipteks Vol 11, No 1 (2023): February
Publisher : Universitas Muhammadiyah Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18196/berdikari.v11i1.11427

Abstract

The Covid-19 (Coronavirus Disease 2019) pandemic has had some effect on the development of children's education because they have to learn independently online. Online learning is a big challenge for schools, teachers, and parents because they are required to be able to manage and design learning media to achieve learning goals and prevent student boredom during online learning. This article describes one of the learning media for elementary school students by making animated videos that can be easily understood. The goal was to provide learning methods to attract students' interest in online learning during the pandemic. This learning model emphasized visualization and summary explanation of the material. Community service partners, in this case, are teachers at SD Sumberwindu I, Tanjung Anom District, Nganjuk Regency, and 5th-grade students. Activities are carried out by identifying school problems and training in making animated videos. While using the animated video, the learning purpose will be easy to achieve. This also increases the motivation of the students to be more active in learning by their shelf and seeking new knowledge related to the video. In this community service, we introduced learning materials in the form of animated videos and uploaded them to a YouTube channel. Those videos can be accessed either by teachers or students. This learning model was well-received and well-appreciated by the teachers and students.
CHARACTERISTICS OF STYROFOAM WASTE-BASED MEMBRANE THROUGH VAPOR AND LIQUID-INDUCED PHASE INVERSION PROCESS Silvana Dwi Nurherdiana; Bambang Wahyudi; Merry Jhoe Stefanny; Anita Karlina; Rachmad Ramadhan Yogaswara; Mohd Jumain Jalil; Hamzah Fansuri
Jurnal Kimia Riset Vol. 8 No. 1 (2023): June
Publisher : Universitas Airlangga, Campus C Mulyorejo, Surabaya, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20473/jkr.v8i1.42957

Abstract

Polymeric membrane-based-Styrofoam waste in the form of a thin sheet was successfully prepared by a phase-inversion technique in different final solidification treatments, namely, immersion and evaporation. This study aims to identify the effects of different solidification processes on membrane properties such as hydrophobicity, pore configuration, porosity, and membrane temperature stability. Characterization was carried out using contact angle, SEM, FTIR, TGA, and porosity tests. The results showed that an increase in Styrofoam 18-30 wt.% in dimethylformamide (DMF) as solvent decreases the hydrophobicity by 9.5%. The average contact angle of 62–80° indicated that the obtained membrane was prepared by immersion treatment. The membrane subjected to evaporation treatment was hydrophobic. Moreover, the microscopy image shows that the immersed membrane was denser than the evaporated membrane. This showed that a higher exchange rate between the solvent and non-solvent (water) produced a tight membrane than free evaporation in air. The polystyrene membrane from Styrofoam exhibited excellent temperature stability up to 350 °C. In addition, the mechanical strength was affected by employing different solidification processes. The obtained results were also successfully tabulated from a statistical point of view to validate the conclusions. The following information can provide basic knowledge for modifying membrane-based-Styrofoam to optimize zero-waste goals.
Pemanfaatan Wadah Cat Sebagai Alat Fermentor Pembuatan Pupuk Padat di Desa Kalipucang Tantri Nailis Sa'adah; Rachmad Ramadhan Yogaswara
Joong-Ki : Jurnal Pengabdian Masyarakat Vol. 3 No. 1: November 2023
Publisher : CV. Ulil Albab Corp

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56799/joongki.v3i1.2569

Abstract

Desa Kalipucang merupakan desa yang memiliki potensi alam melimpah khususnya di bidang perkebunan seperti perkebunan pisang, kopi, dan durian. Perkebunan di desa Kalipucang belum tumbuh dengan sempurna karena masih menggunakan pupuk kimia anorganik, sehingga perlu adanya upaya untuk meningkatkan kualitas hasil perkebunan tersebut dengan menggunakan pupuk organik. Tim Bina Desa Kalipucang Teknik Kimia UPN ”Veteran” Jawa Timur 2023 melakukan pemanfaatan wadah cat sebagai alat fermentor pembuatan pupuk padat. Alat fermentor diperlukan untuk proses fermentasi. Alat tersebut dibuat dari wadah cat yang dapat memproduksi pupuk organik dalam jumlah yang banyak. Pupuk organik padat yang dibuat oleh Tim Bina Desa merupakan pupuk yang terbuat dari bahan organik seperti pelepah pisang dan kulit pisang dengan memanfaatkan EM4 (Effective Microorganism-4) atau Mikroorganisme Lokal (MOL). Selanjutnya Tim Bina Desa melakukan sosialisasi pembuatan pupuk padat yang bertujuan memberikan informasi mengenai cara pembuatan pupuk padat sehingga masyarakat Desa Kalipucang dapat melakukan praktik pembuatan pupuk padat di tempat masing-masing.
Co-Authors A.R Yelvia Sunarti Achmad Chumaidi, Achmad Achmad Rizaldi Adeningrum, Della Arista Adrian Gunawan, Adrian Afida Kartika Sari Ahmad Rizky Safrudin Anggara, Ikhwan Rifki anggraini, putri anggraini Anita Karlina AR Yelvia Sunarti Ardiansyah, Mochammad Rifqi Awildan El Fath AYU RAHMAWATI Bambang Wahyudi Bellani Yunfa Winata Billah, Mu’tasim Billah, Mu’tasim Daud, Daud Dhining Ayu Elsa Rosyidah Eristya Maya Safitri Erliyanti, Nove Kartika Erwan Adi Saputro Faidah, Lutfatin Farha, Ayu Shafira Fariana, Nida Fransisca Asteria Nandra Febiola Hamzah Fansuri Handi Ramadhan Hawa Aritma Sunarko Putri Ibadurrahman, Muhammad Watsieq Jiwantara, Dhebby Mas Ketut Sumada Khairunnisa Khairunnisa Kindriari Nurma Wahyusi Kusumawati, Yuly L.Urip Widodo, Yohandrik Novel Karaman Laksminingsih, Arieanthi Luckyana Aini Luckyana Aini Mardiansyah, Yuda Eka Melita, Lusia Nada Merry Jhoe Stefanny Mohd Hafiz Dzarfan Othman Mohd Jumain Jalil Mu'tasim Billah Muhammad Ashfal Ashfiya Muhammad Hakam Muhammad, Fitrah Guna Mutasim Billah Mu’tasim Billah Nandini , Atika Naufal Alkautsar Maulana Nerissa Arviana Nerissa Arviana Ni Ketut Sari Nuha, Farhah Kamilatun Nuraini, Adila Silmi Nurul Widji Triana Oktarini, Rahmi Prihardani, Fitri Pusfitasari, Memik Dian Putri, Hawa Aritma Sunarko Rahmi Oktarini Rensa Arnas Yunarwan Reva Edra Nugraha Rieswana, Yuried Diilan Rina Yulianti Rohmad Taufiqi Romalawati, Meiswita Rosa, Aulia Sa'adah, Tantri Nailis Sani Shanti Larissa Silvana Dwi Nurherdiana Sintha Soraya Santi Sri Redjeki Sri Redjeki Suprihatin Suprihatin Susilowati Syafsir Akhlus Syuaibatul Islamiyah Tahan Aprijal Simamora Tantri Nailis Sa'adah Tikat Deri Agratiyan Tsabitah Nabilah Khairunnisa Wahyu Arif Dharmawan Yesi Nabila Zahro Herazi Zuhdi, Farhan Muhammad