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All Journal Rang Teknik Journal Journal of Applied Agricultural Science and Technology Lumbung: Jurnal Ilmiah Politeknik Pertanian Negeri Payakumbuh Agroteknika JURNAL REKAYASA Science and Environmental Journals for Postgraduate REKA ELKOMIKA: Jurnal Pengabdian kepada Masyarakat Technologica atech-i
Batubara, Fanny Yuliana
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Agriculture, Biological Sciences & Forestry Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Education Electrical & Electronics Engineering Energy Engineering Environmental Science Industrial & Manufacturing Engineering Mechanical Engineering Social Sciences

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Rancang Bangun Mesin Pengiris Adonan Kerupuk Ubi Yefsi Malrianti; Fanny Yuliana Batubara; Fauzan Abdi; Hadijah Putri Maharai; Muhamad Maulana Irpan Sitorus; Rafky; Khairul Febri
Atech-i Vol. 1 No. 1 (2023): Tahun 2023
Publisher : Green Engineering Society

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55043/atech-i.v1i1.15

Abstract

Kerupuk adalah makanan kering yang sangat populer di Indonesia. Kerupuk dapat diolah dari berbagai macam bahan makanan. Penelitian ini bertujuan untuk merancang dan membuat mesin pengiris adonan kerupuk secara mekanis, menghitung kinerja mesin dan juga menghitung analisa ekonomi teknik mesin pengiris adonan kerupuk secara mekanis. Mesin pengiris adonan kerupuk dirakit dengan komponen rangka, hopper, piringan mata pisau, pisau pengiris, penutup piringan pisau, poros, bearing, pulley, v-belt, outlet dan motor listrik yang berhasil dibuat dengan spesifikasi hasil akhir berbentuk mesin siap pakai dengan panjang 50 cm, lebar 40 cm, dan tinggi 70 cm, menggunakan putaran motor listrik 1430 rpm. Berdasarkan uji kinerja, diperoleh kapasitas mesin pengiris adonan kerupuk yaitu 182,524 kg/jam, rata –rata persentase kerusakan hasil 3,9% dan rata-rata ketebalan hasil irisan 0,97 mm. Berdasarkan hasil analisa ekonomi mesin pengiris adonan kerupuk didapat total biaya pembuatan mesin adalah Rp. 4.058,000 harga jual Rp. 4.869,600 biaya tetap Rp. 1.460.820/tahun, biaya tidak tetap Rp. 20.084,6594/jam, biaya pokok Rp. 11,432/kg, dan break event point Rp. 3.745,577kg/thn.
RANCANG BANGUN MESIN PENYARING BUBUR TAHU Yudistira; Hasman, Elvin; Batubara, Fanny Yuliana
Atech-i Vol. 1 No. 2 (2024): Tahun 2024
Publisher : Green Engineering Society

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55043/atech-i.v1i2.23

Abstract

Kedelai adalah salah satu bahan makanan dengan perkembangan komoditi yang sangat besar di Indonesia. Proses penyaringan bubur tahu bertujuan untuk memisahkan sari pati dengan ampas tahu yang tidak diperlukan dalam proses pengolahan tahu. Proses pengolahan tahu masih menggunakan cara manual dengan menggunkan alat penyaring berupa kain yang di ikat pada kayu. Pada proses penyaringan manual, pekerja melakukan penyaringan dengan posisi tubuh berdiri dan bagian tangan menggoyang-goyangkan saringan sehingga proses ini membutuhkan waktu yang lama. Penelitian ini bertujuan untuk sebuah mesin yang dapat membatu pekerja untuk meningkatkan produktivitas dan mempersingkat waktu pekerjaan. Pembuatan mesin penyaring bubur tahu dilakukan melalui perancangan struktural dan fungsional dengan panjang 100 cm lebar 80 cm dan tinggi 150 cm, mesin penyaring bubur tahu ini menggunakan motor listrik 0,5 HP dengan kecepatan putar 1400 RPM. Mesin penyaring bubur tahu memiliki hasil kapasitas yaitu 57,9 kg/jam. Berdasarkan analisa ekonomi didapatkan biaya tetap Rp. 666.729,6/tahun, biaya tidak tetap Rp.13.335,97/jam, biaya pokok Rp.244,41/kg dan BEP 835,9 kg/tahun.
Mesin Penyangrai Biji Kopi Portabel dengan Tuas Pengaduk Vertikal Malrianti, Yefsi; Zulnadi, Zulnadi; Yudistira, Yudistira; Djinis, Musdar Effy; Batubara, Fanny Yuliana; Defrian, Angga; Akbar, Fauzia; Sinurat, Frisella Br
Agroteknika Vol 8 No 1 (2025): Maret 2025
Publisher : Green Engineering Society

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55043/agroteknika.v8i1.444

Abstract

Pengolahan biji kopi perlu memperhatikan berbagai aspek yang dapat menjaga kualitas biji kopi, seperti penyangraian. Aroma dan citarasa kopi yang baik dapat dihasilkan melalui tahapan penyangraian dengan menggunakan suhu yang tepat pada setiap tingkat penyangraian. Pengendalian suhu yang presisi dan konsistensi dalam proses penyangraian menjadi kunci untuk menghasilkan biji kopi berkualitas tinggi yang sesuai dengan preferensi konsumen. Penelitian ini merupakan penelitian eksperimen design. Penelitian ini bertujuan untuk membuat mesin sangrai kopi portabel yang mudah digunakan dan dibawa ke berbagai tempat. Mesin sangrai kopi portable memiliki dimensi yang meliputi panjang mesin 88 cm, lebar mesin 70 cm, dan tinggi mesin 146 cm. Uji kinerja yang dilakukan meliputi kapasitas mesin, kecepatan putar alat, kadar air, dan laju pengeringan. Kapasitas untuk produk light, medium, dan dark secara berturut-turut adalah sebesar 2 kg/jam, 1,33 kg/jam, dan 1 kg/jam. Mesin penyangrai kopi digerakkan oleh motor listrik berkekuatan 1 HP dengan putaran 1.400 RPM. Tuas pengaduk memiliki kecepatan putar 17,5 RPM, yang diperoleh dari pengurangan putaran dari motor listrik, dengan perbandingan pulley 4:8, dan peredam kecepatan 1:40. Kadar air untuk produk light, medium dan dark diperoleh sebesar 7%, 5%, dan 2%. Laju pengeringan produk light, medium dan dark diperoleh sebesar 1 %, 4 % dan 6 %. Hasil analisis ekonomi mesin sangrai kopi menunjukkan biaya tetap sebesar Rp. 1.502.989,2/tahun. Terdapat tiga biaya tidak tetap pada mesin ini yaitu produk light, produk medium, dan produk dark sebesar Rp. 17.297,5. Biaya pokok untuk produk light sebesar Rp. 25.118,43/jam, produk medium sebesar Rp. 27.839,6/jam, dan produk dark sebesar Rp. 32.434,48/jam. Sementara itu, BEP untuk produk light sebesar 336,8 kg/tahun, produk medium sebesar 245,30 kg/tahun, dan produk dark sebesar 208,56 kg/tahun.
Heavy Metal Distribution and Policy Impact from Illegal Mining in Sijunjung: A Systematic Review Amelia, Kiki; Frinaldi, Aldri; Rembrandt, Rembrandt; Aprilliani, Cici; Audia, Washilla; Batubara, Fanny Yuliana; Hatika, Rindi Genesa; Febrina, Cory; Iswahyudi, Abdi
Science and Environmental Journal for Postgraduate Vol. 7 No. 2 (2025): Science and Environmental Journals for Postgraduate (SENJOp)
Publisher : Postgraduate School, Universitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/senjop.v7i2.298

Abstract

Illegal gold mining (PETI) in Sijunjung Regency has triggered a severe environmental crisis, characterized by widespread heavy metal pollution from mercury (Hg) and arsenic (As) that threatens ecosystems and public health. To comprehensively assess this issue and evaluate existing management policies, this study conducted a systematic review following the PRISMA 2020 guidelines, synthesizing evidence from 20 empirical studies. The results reveal that heavy metal concentrations in water, sediment, soil, and biota significantly exceed quality standards, with a clear spatial gradient emanating from PETI sites and a worrying increasing trend over time. Concurrently, the evaluation of management policies uncovered critical weaknesses, including institutional fragmentation, low law enforcement effectiveness (achieving only 45% of its target), and an over-reliance on ineffective repressive measures. In conclusion, the findings underscore the urgent need for a fundamental policy shift from a repressive to an integrative and sustainable model. This study proposes an evidence-based framework that combines stringent regulation, real-time monitoring, community-based economic empowerment, and public health interventions to holistically address the root causes and multifaceted impacts of PETI in Sijunjung.
Analysis Wastewater Treatmen and Environmental Policy Development: Bibliometrics and Visualization Washilla Audia; Frinaldi, Aldri; Lanin, Dasman; Rembrandt, Rembrandt; Umar, Genius; Yulkifli, Yulkifli; Syah, Nurhasan; Nofriandi, Alwi; Aprilliani, Cici; Amelia, Kiki; Batubara, Fanny Yuliana; Hatika, Rindi Genesa; Febrina, Cory; Yasril, Abdi Iswahyudi; Hendrita, Juli
Science and Environmental Journal for Postgraduate Vol. 7 No. 2 (2025): Science and Environmental Journals for Postgraduate (SENJOp)
Publisher : Postgraduate School, Universitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/senjop.v7i2.301

Abstract

The global water pollution crisis exacerbated by anthropogenic activities demands effective integration between science and policy. This study conducted a comprehensive bibliometric analysis of 285 publications to map the intellectual landscape and evolutionary trajectory at the interface of liquid waste contamination and environmental policy. Findings reveal an exponential acceleration of research since 2014, with 75.78% of publications concentrated in the last decade, reflecting increasing global urgency. China dominates as the research epicenter with the highest productivity (56 publications), the greatest citation impact (1,914 citations), and a role as a key collaboration link. Thematic analysis confirms the consolidation of this field around the core concepts of “environmental policy” (228 occurrences) and “wastewater treatment” (215 occurrences), marking a paradigm shift from technocratic approaches toward holistic policy integration. However, the polarization of international collaboration into 10 cohesive clusters indicates a fragmentation of global discourse. Critically, this study identifies an alarming disparity between rapid scientific progress and lagging policy adoption capacity, highlighting the urgent need for adaptive policy frameworks and transdisciplinary collaboration mechanisms to bridge the implementation gap and respond more effectively to emerging contaminants.
Agrotourism as a Pillar of Sustainable Development: Systematic Literature Review Hendrita, Juli; Frinaldi, Aldri; Lanin, Dasman; Rembrandt, Rembrandt; Umar, Genius; Aprilliani, Cici; Amelia, Kiki; Batubara, Fanny Yuliana; Hatika, Rindi Genesa; Febrina, Cory; Yasril, Abdi Iswahyudi
Science and Environmental Journal for Postgraduate Vol. 7 No. 2 (2025): Science and Environmental Journals for Postgraduate (SENJOp)
Publisher : Postgraduate School, Universitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/senjop.v7i2.305

Abstract

Agrotourism is a series of tourism activities that utilize agricultural potential as tourist attractions that can be enjoyed through natural scenery, plant and animal conservation, educational activities in agricultural and plantation areas that have a diversity of production activities and technologies, and can also promote community culture. Agrotourism potential can be developed through integrated agriculture such as farming, animal husbandry, and educational tourism. This study aims to identify the development of research related to the sustainability of agrotourism conducted worldwide through data obtained from relevant journals for the period 2000 to 2025. There are 58 studies related to the sustainability of agrotourism. The method used in this study is the Systematic Literature Review (SLR) method. The SLR method is used to identify, review, evaluate, and interpret all available research in fields and topics related to relevant and specific research questions. Using the SLR method, systematic reviews and journal identification can be carried out, with each process following predetermined steps or protocols. The results of this study show that agrotourism research has shown consistent growth from 2000 to 2025, with a significant surge in 2024, indicating the importance of agrotourism in sustainable tourism. The country conducting the most research in the field of agrotourism sustainability is Indonesia, with research based on the number of citations each year 2000 to 2025 being 4 out of 20 studies.
Welding Training for Assisted Communities at Tanjungpati Children's Special Correctional Institution Allen, Rio Valery; Ernita, Yuni; Novita, Sri Aulia; Djinis, Musdar Effy; Herdian, Fithra; Zulnadi, Zulnadi; Batubara, Fanny Yuliana
REKA ELKOMIKA: Jurnal Pengabdian kepada Masyarakat Vol 7, No 1 (2026): Reka Elkomika
Publisher : Institut Teknologi Nasional, Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26760/rekaelkomika.v7i1.1-9

Abstract

The juvenile correctional system (LPKA) in Indonesia carries out a fundamental mandate to rehabilitate correctional students (Andikpas) and prevent the recurrence of criminal acts (recidivism). A crucial instrument in correctional rehabilitation is competency-based vocational training. This study aims to analyze the theoretical relevance of the Shielded Metal Arc Welding (SMAW) welding training program based on the Indonesian National Work Competency Standard (SKKNI) at LPKA, identify existing structural implementation challenges, and formulate optimization strategies through a collaborative model. The results of the analysis show that welding training is a very effective strategic program. The industrial sector in Indonesia needs at least 45,000 welding experts, proving the high demand for the job market. These skills serve as a powerful catalyst to achieve desistance by providing the human capital needed to get a stable job, thus overcoming the job instability associated with the risk of repeat crime. Despite having great potential, the implementation of coaching programs at LPKA is hampered by limited funds, inadequate facilities, and a lack of expert instructor Human Resources (HR). To overcome this obstacle, it is recommended to adopt a Mutualistic Partnership model with external parties, which aims to ensure the standardization of the 320 Hours of Training (JP) curriculum in accordance with SKKNI, competency certification, and integration of vocational work readiness measurements. This partnership creates mutual benefits and strengthens LPKA's capacity on an ongoing basis.
Analisis Kinerja pada Modifikasi Alat Pengering Ikan Nila Tipe Kerucut serta Pengaruhnya terhadap Kadar Air dan Mutu Organoleptik Sri Aulia Novita; Yuni Ernita; Musdar Effy Djinis; Zulnadi Zulnadi; Fanny Yuliana Batubara; Rio Valery Allen; Fithra Herdian
Agroteknika Vol 9 No 1 (2026): Maret 2026
Publisher : Green Engineering Society

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55043/agroteknika.v9i1.639

Abstract

Proses pengeringan ikan merupakan proses dalam menjaga mutu ikan sehingga dapat disimpan dalam waktu yang lama, sehingga aman dikonsumsi oleh konsumen. Tujuan penelitian ini adalah mengetahui pengaruh suhu dan laju kecepatan udara pengering terhadap ikan nila yang dikeringkan, melakukan uji kinerja alat, serta melakukan uji organoleptik ikan nila kering. Metode yang digunakan dalam penelitian ini meliputi modifikasi alat, persiapan bahan, pengujian kinerja, dan uji organoleptik ikan kering. Peralatan yang digunakan terdiri atas ruang pengering, rak pengering, exhaust fan, termokopel tipe K, Arduino Uno, data logger, anemometer, ruang pemanas, dan kompor listrik 2000 W. Pada penelitian ini suhu pada setiap rak berbeda berdasarkan data yang diperoleh. Suhu pengeringan berfluktuasi dari 42 °C hingga 71 °C selama 7 jam proses pengeringan. Pengurangan jumlah air pada jam pertama berkisar antara 26–40 gram/jam, sedangkan pada jam kedua sebesar 10–15 gram/jam dan menurun secara bertahap pada jam berikutnya. Semakin lama proses pengeringan berlangsung, semakin sedikit jumlah air yang diuapkan. Laju kecepatan aliran udara dalam ruang pengering tergolong tinggi, yaitu 3–3,6 m/s. Kadar air akhir ikan adalah 15,14%, sehingga produk ikan nila kering telah memenuhi standar SNI, termasuk kategori ikan kering berkualitas baik dan memiliki daya simpan lebih lama. Laju pengurangan air pada ikan berada pada kisaran 9,85–11,85 gram air/jam. Total energi pengeringan adalah 0,9278 kWh dengan efisiensi energi pengeringan sebesar 46,4%. Berdasarkan uji organoleptik, ikan nila kering memiliki warna cerah serta tekstur dan aroma yang baik.
Co-Authors Abdi Iswahyudi Yasril Afdal Zikri Afner, Synthia Ona Guserike Ajri Mai Ihsan Akbar, Fauzia Aldri Frinaldi Allen, Rio Valery Alwi Nofriandi Amrizal Amrizal Andrik Marta Aprilliani, Cici Arief Adhiatma Audia, Washilla Azani Al Sya’ban Dasman Lanin Dedi Gusviandra Defrian, Angga Dimas Teguh Haryanto Djinis, Musdar Effy Ernita, Yuni Fahrul Rozi Irianto Fatardho Zudri Fauzan Abdi Febrina, Cory Fithra Herdian Hadijah Putri Maharai Hasman, Elvin Hendra Hendra hendrita, juli Herdian, Fithra Indra Laksmana Irwan A Irwan Anas Irzal Irzal Iswahyudi, Abdi Khairul Febri Kiki Amelia, Kiki Kristoper Malrianti, Yefsi Mohammad Riza Nurtam Muhamad Maulana Irpan Sitorus Musdar Effy Djinis Nurmaini Nurmaini Olla Ona Oktarian Womsiwor Rafky Rahmad Hidayat Rembrandt, Rembrandt Rildiwan Rildiwan Rindi Genesa Hatika Rio Valery Allen Ruri Jalil Jabbar Sandi Wisaputra Sinurat, Frisella Br Sri Aulia Novita Surya Eka Priana Umar, Genius Washilla Audia Yudistira Yudistira Yudistira Yudistira Yudistira Yulkifli Yulkifli Yuni Ernita Ziko Jannatul Azmi Zul Ariyandi Zulnadi Zulnadi Zulnadi, Zulnadi