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All Journal Prosiding Semnastek Jurnal Rekayasa Material, Manufaktur & Energi Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Jurnal Mekanova : Mekanikal, Inovasi dan Teknologi Jurnal Ilmiah Teknik Mesin "MEKANIK" Multidiciplinary Output Research for Actual and International Issue (Morfai Journal) IRA Jurnal Teknik Mesin dan Aplikasinya (IRAJTMA) Jurnal Agro Fabrica IRA Jurnal Pengabdian Kepada Masyarakat
Mahyunis
Institut Teknologi Sawit Indonesia
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Perawatan Tanaman Kelapa Sawit Di Lahan Masyarakat Desa Bukit Cermin Hilir Kecamatan Dolok Masihul Kabupaten Serdang Bedagai Yazid, Abu; Mahyunis, Mahyunis; Napitu, Patuan L; Simangunsong, Samuel; Nurhamdi, M; Imran, Ali; Nasution, Nafis M
IRA Jurnal Pengabdian Kepada Masyarakat (IRAJPKM) Vol 2 No 3 (2024): Desember
Publisher : CV. IRA PUBLISHING

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56862/irajpkm.v2i3.168

Abstract

To increase palm oil production, special attention must be given to various factors that influence plant growth. One crucial step is ensuring optimal care for immature plants to improve their quality and yield. Unfortunately, many smallholder palm oil farmers face limited knowledge and resources to apply proper care practices. Therefore, targeted efforts are needed to help them understand the importance of palm oil plant care to sustain and enhance the profitability of this sector. In Bukit Cermin Hilir Village, Dolok Masihul District, Serdang Bedagai Regency, palm oil plant care uses two main techniques. The first technique is pruning, which involves removing fronds below the fruit bunches. This process facilitates pollination, increases the number of fresh fruit bunches, eases harvesting, and prevents excessive evaporation during the dry season. The second technique is circle clearing, which involves clearing a circular area around the palm tree with a radius of 0.6–1.5 meters to prevent weed growth that could disrupt the plants. Pruning is categorized into three types based on the plant’s age: initial pruning, production pruning, and maintenance pruning. The number of fronds left on each tree ranges from 28 to 54. These care practices optimize plant growth, simplify farm management, and contribute to producing higher-quality palm oil yields.
Analisa Efektivitas, Produktivitas dan Mutu Minyak Pada Mesin Empty Bunch Press Pabrik Kelapa Sawit Mahyunis, Mahyunis; Winardi, Rafael Remit; Raja, Padamulia; Giyanto, Giyanto; Fazli, Hafiz Darma
IRA Jurnal Teknik Mesin dan Aplikasinya (IRAJTMA) Vol 4 No 1 (2025): April
Publisher : CV. IRA PUBLISHING

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56862/irajtma.v4i1.202

Abstract

The empty bunch press is a tool that extracts oil from empty palm fruit bunches to reduce oil losses. This study aimed to assess the machine's effectiveness and productivity, measure oil content in the residue, and evaluate the quality of the oil bunch press . A quantitative descriptive method was applied through 14 days of observation at a palm oil mill laboratory. Results showed that the oil content in empty bunches was 6.36%, that of residue was 1.12%, and that of oil bunch press  was 5.23%. Input weight was 4,071 kg/hour, output 1,833 kg/hour, and extracted oil 95.87 kg/hour. The machine's effectiveness was 82.23%, and productivity was within a 5–6 tons/hour capacity. Oil bunch press quality tests showed 5.24% FFA, 0.41% moisture, and 0.12% impurities. Although losses and oil quality exceeded standard limits, the oil bunch press  will be refined before blending with production oil.
ANALISA RELIABILITY DAN AVAILIBILITY PADA INDUCE DRAFT FAN (ID-FAN) BOILER PT. JATIM JAYA PERKASA Mahyunis, Mahyunis; Efendi, Zulham; Agung Prasastiyo, Bima; Zulyaden Lubis; Faisal, Busrial; Saragih, Sri Wahyuna
Jurnal Agro Fabrica Vol. 7 No. 1 (2025): Juni 2025
Publisher : Institut Teknologi Sawit Indonesia (ITSI)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47199/jaf.v7i1.297

Abstract

Penelitian ini bertujuan dapat berguna bagi dunia Perkebunan termasuk Pabrik Kelapa Sawit dalam melakukan perawatan pada mesin untuk memaksimalkan kinerja mesin dalam melakukan pengolahan sawit menjadi Crude Palm Oil. Metode Penelitian yang digunakan adalah menggunakan metode studi kasus dengan mengamati, merangkum dan mencatat data sekunder maintenance dari jurnal harian mandor berupa waktu operasi, Frekuensi Breakdown, Failure and Repair dan Set and adjusment selama 6 bulan mulai dari proses pengolahan pabrik sampai akhir. Penelitian ini dilakukan untuk mencari kehandalan pada mesin Induce Draft Fan dan menghitung ketersediaan mesin dalam waktu 1 bulan, kemudian memeriksa komponen-komponen yang ada pada pabrik kelapa sawit. Ada beberapa komponen yang masih dapat dihandalkan atau masih layak digunakan dan ada komponen yang rusak total. Dari data hasil penelitian kondisi yang memiliki ketersediaan yang tinggi adalah bulan juni sebesar 71,3% sedangkan kondisi ketersediaan yang rendah adalah bulan November sebesar 6,36% yang artinya kondisi pada bulan November mengalami kerusakan yang sangat parah. Kerusakan yang terjadi pada bulan juni sebesar 28,7% sedangkan kerusakan pada bulan November sebesar 93,64%, Kemudian untuk bulan juli dan oktober tidak dilakukan penghitungan reliability dan availability karena kondisi tersebut tidak menyebabkan breakdown total.
Penerapan Aquaponik dengan Hidroponik DFT untuk Budidaya Kangkung di Desa Dolok Sagala Mahyunis, Mahyunis; Gunawan, Hari; Raja, Pada Mulia; Winardi, Rafael Remit; Zakwan, Zakwan; Yazid, Abu; Hasibuan, Henry Budi
IRA Jurnal Pengabdian Kepada Masyarakat (IRAJPKM) Vol 3 No 1 (2025): April
Publisher : CV. IRA PUBLISHING

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56862/irajpkm.v3i1.187

Abstract

This Community Service Program aims to implement an aquaponics system with DFT hydroponics in water spinach cultivation in Dolok Sagala Village, Dolok Masihul Subdistrict, Serdang Bedagai Regency. The aquaponics system combines fish farming with plant cultivation, where fish wastewater is used as a plant nutrient source. In contrast, the DFT hydroponics system allows efficient nutrient circulation. The application of this technology aims to increase agricultural productivity in limited land areas, provide sustainable farming solutions, and enhance local food security. The results of this activity show that the aquaponics and DFT hydroponic systems can significantly improve the growth of water spinach with minimal use of land and resources. Community participation in this activity also increased, reinforcing awareness of the importance of modern agricultural technology.
The Use of Gamal Leaves (Gliricidia sepium) to Accelerate Fresh Fruit Bunch Detachment and Improve the Quality of Crude Palm Oil Giyanto, Giyanto; Rangkuti, Ika Ucha Pradifta; Raja, Pada Mulia; Winardi, Rafael Remit; Mahyunis, Mahyunis; Ashari, Reza; Elisabeth, Jenny
Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Vol. 13 No. 4 (2024): December 2024
Publisher : The University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jtep-l.v13i4.1432-1441

Abstract

Acceleration of processing for fresh fruit bunches (FFB) is crucial to increase profitability and business opportunities for oil palm farmers. This research aims to evaluate the effect of using gamal (Gliricidia sepium) leaves and the duration of ripening on the percentage of FFB processing as well as the quality of crude palm oil. This study employed a factorial completely randomized design (CRD). The data were analyzed using ANOVA with Duncan’s Multiple Range Test at a significance level of 5%. The results of the analysis showed that the best treatment was S3T2 (40% gamal leaves, 20 h of ripening) with a natural processing percentage of 45.87% of the FFB weight and 60.34% of the total bunch weight. The use of gamal leaves and the duration of ripening significantly affected the quality parameters of the oil, especially the free fatty acid content. Treatment S1T1 (20% gamal leaves, 10 h of ripening) showed the best results with a free fatty acid value of 1.30%, meeting the quality standard (<5%). However, the moisture content still exceeded the quality standard (<0.5%), although treatment S3T2 yielded the best result at 0.63%. While, the impurity content quality met the quality standard (<0.5%), with the best value achieved by treatment S1T1 at 0.15%. Keywords: Bunch detachment, CPO quality, Ethylene, Gliricidia sepium, Ripening.
Inovasi Edukasi Lingkungan melalui Pemanfaatan Minyak Jelantah Menjadi Lilin di SD Desa Mabar Raja, Pada Mulia; Wahyuna, Ritna; Mahyunis, Mahyunis; Zakwan, Zakwan; Winardi, Rafael Remit Winardi; William, William
IRA Jurnal Pengabdian Kepada Masyarakat (IRAJPKM) Vol 3 No 3 (2025): Desember
Publisher : CV. IRA PUBLISHING

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56862/irajpkm.v3i3.262

Abstract

Used cooking oil is a household waste that can pollute the environment if disposed of improperly. In Mabar Village, Bangun Purba District, public awareness of waste oil management remains low. This community service program aims to provide environmental education for elementary school students by introducing the utilization of used cooking oil to produce candles. The program involved 21 students from grades 4–5. The methods included socialization on the dangers of used oil, hands-on candle-making practice, and evaluation using pre- and post-tests. The results show a significant improvement in students’ understanding, rising from 20% on the pre-test to 85% on the post-test. Furthermore, all participants successfully produced candles independently. This program effectively enhances children’s knowledge and environmental awareness.
Analisis Kelayakan Tangki Timbun CPO Kapasitas 500 dan 1000 Ton Berdasarkan Ketebalan Roundshell, Suhu, dan Tekanan Hidrostatis Raja, Pada Mulia; Mahyunis, Mahyunis; Istiadzah, Tiara Briliani; Zakwan, Zakwan; Winardi, Rafeal Remit; Rahimah, Rahimah; Lubis, Zulyaden
IRA Jurnal Teknik Mesin dan Aplikasinya (IRAJTMA) Vol 4 No 3 (2025): Desember
Publisher : CV. IRA PUBLISHING

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56862/irajtma.v4i3.278

Abstract

This study aims to determine the feasibility of using 500-ton and 1000-ton Crude Palm Oil (CPO) storage tanks in a palm oil mill. The evaluation is based on the roundshell thickness, operating temperature, and hydrostatic pressure acting on the tanks. A descriptive quantitative method was applied using primary and secondary data from PMKS Simpang Gambir. The results showed that for the 500-ton tank, the calculated roundshell thickness is 8.6 mm, the actual is 8.87 mm, and the design is 9 mm, with a hydrostatic pressure of 5.73 Pa. For the 1000-ton tank, the calculated thickness is 13.1 mm, the actual thickness is 13.8 mm, and the design thickness is 14 mm, with a hydrostatic pressure of 11.46 Pa. The corrosion rates are 0.00072 mm/month and 0.0011 mm/month, respectively. Based on the analysis, the 500-ton tank is feasible for continued use for approximately 31 years, and the 1000-ton tank for 53 years, assuming constant corrosion rates.
"PULER" INNOVATION: PALM OIL MILL SOLID WASTE AS ORGANIC FERTILIZER TO SUPPORT SDG'S 12 Ika Ucha Pradifta R; Tifany Zia Aznur; Saroha Manurung; Aulia Juanda; Mahyunis; Dina Arfianti Saragih; Delyana R Pulungan; Ritna Wahyuni
Multidiciplinary Output Research For Actual and International Issue (MORFAI) Vol. 6 No. 2 (2026): Multidiciplinary Output Research For Actual and International Issue
Publisher : RADJA PUBLIKA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5281/zenodo.18725029

Abstract

Palm oil mill boiler ash is a solid industrial waste available in large quantities, but its utilization is still limited. This waste has alkaline properties and nutrient content that has the potential to improve the physical-chemical properties of tropical acid soils, such as pH, cation exchange capacity, and macronutrient availability, making it a potential sustainable soil ameliorant. This study aims to process organic fertilizer, namely an organomineral product based on boiler ash, with the aim of evaluating its chemical characteristics and assessing its potential application as a soil ameliorant. The analysis results show that Puler has a pH value of 9 and a nutrient composition that can improve soil quality without heavy metal concentrations above the Indonesian national standard threshold. These findings indicate that Puler can be an efficient alternative ameliorant and supports the utilization of palm oil industry waste. In addition, this puler also meets the criteria for organic fertilizer standards according to SNI 7763:2024
APLIKASI SEVEN TOOLS QUALITY CONTROL DALAM PENGENDALIAN MUTU CRUDE PALM OIL (CPO) DI TANGKI TIMBUN PABRIK KELAPA SAWIT Purwanto, Heri; Mahyunis; Hartanti, Puspita Sri
Jurnal Agro Fabrica Vol. 7 No. 2 (2025): Desember 2025
Publisher : Institut Teknologi Sawit Indonesia (ITSI)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47199/jaf.v7i2.383

Abstract

Quality control of Crude Palm Oil (CPO) is essential to ensure compliance with quality standards. This study aims to control and analyze CPO quality parameters, namely Free Fatty Acid (FFA), moisture content, and dirt content, using the Seven Tools of Quality Control. The research was conducted at a palm oil mill in South Labuhanbatu Regency, North Sumatra, using laboratory quality data collected from October to December 2024. A descriptive quantitative method was applied by utilizing check sheets, Pareto diagrams, control charts, and fishbone diagrams within the Quality Control Circle (QCC) approach. The results showed that quality deviations occurred in 28 samples for FFA, 22 samples for dirt content, and 14 samples for moisture content. Pareto analysis indicated that FFA and dirt content were the main contributors to quality problems, accounting for 78.13% of total deviations. Control chart analysis revealed several periods of process instability, particularly in FFA values. The study concludes that the Seven Tools of Quality Control are effective in identifying dominant quality problems and supporting improvement efforts to enhance CPO quality.
Co-Authors AA Sudharmawan, AA Abdul Basyir, Abdul Abu Yazid, Abu Agung Prasastiyo, Bima Ali Imran Amru Siregar Ashari, Reza Aulia Juanda Bagus Setiawan Barita, Barita Boby Surya Bimantoro Busrizal Faisal Darianto, Darianto Delyana R Pulungan Dina Arfianti Saragih Eka Bobby Febrianto, Eka Bobby Eko Daskiro Eswanto Eswanto Eswanto Eswanto Faisal, Busrial Farah Dina, Sari Fauzi Asrianto Fazli, Hafiz Darma Firdaus, Khairin Franky Sutrisno Ginting, Fajar Kerehen Yusuf Giyanto Giyanto Gultom, D Hari Gunawan Hartanti, Puspita Sri Hasibuan, Henry Budi Heri Purwanto Hutasoi, Slamat Aditia Ika Ucha Pradifta R Ika Ucha Pradifta Rangkuti Ilmi Abdullah Ilmi Ilmi Indah Apriliya Istiadzah, Tiara Briliani Iswandi Iswandi Jenny Elisabeth Jos Susilo Jufrizal Jufrizal Kamil, M Lubis, M Fahmi Fatan Lubis, Zulyaden Lumbanraja, Rafhael Albertus M.Kamil M.Kamil Mahadi, Batu Manullang, Raymond Manurung, Saroha Muhammad Syukri Muldani, Muldani Munajat Munajat Napitu, Patuan L Nasution, Khairin Firdaus Marajoki Nasution, Nafis M Nehemia Ratur Tarigan Noor, Faiz Nur Hidayah Nurdiana Nurdiana Nurdiana Nurhamdi, M Nurhidayatullah Nurhidayatullah Oppusunggu, K Oppusunggu, K. Pada Mulia Raja Rahimah, Rahimah Renaldy, Muhammad Aziz Ritna Wahyuni Ritonga, Abdul Rahman Sabam Sabam Salsabila, Unik Hanifah SAM, M Danny Sarumpaet, Josafat Sembiring, Arifa Sura Silaban, Jhon Adi F. Simangunsong, Samuel Simanullang, Putra Sakti Simarmata, Alex Paul Hendry Sinaga, Patar AP Siti Aisyah Sri Wahyuna Saragih supriadi supriadi supryadi, supryadi Sutrisno, Franky Syukarni Ali syurkani Ali Tanjung, Hairul Bukti Tifany Zia Aznur Tinambunan, Levi Rentiana Wahyudi, M Wahyuni, Seri William William Winardi, Rafael Remit Winardi, Rafael Remit Winardi Winardi, Rafeal Remit Wito Pirmansyah, Ahmad Yazid, Abu Yulfitra Zainuddin, Zainuddin Zakwan Zakwan, Zakwan Zulham Effendi Zulham Effendi Zulkifli Lubis Zulkifli Lubis Zulyaden Lubis