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All Journal Jurnal Pengabdian Kepada Masyarakat Sakai Sambayan Jurnal Keteknikan Pertanian Tropis dan Biosistem Jurnal Informatika dan Teknik Elektro Terapan agriTECH Indonesian Journal of Science and Technology Jurnal Ilmiah Rekayasa Pertanian dan Biosistem Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Jurnal Agrotek Tropika Batoboh : Jurnal Pengabdian Pada Masyarakat Jurnal Peternakan (Jurnal of Animal Science) Jurnal Kesehatan Barometer Agroteknika Jurnal Pengabdian Kepada Masyarakat (JPKM) Tabikpun International Journal of Electronics and Communications Systems Jurnal Agricultural Biosystem Engineering Applied Research in Science and Technology Open Science and Technology Aceh International Journal of Science and Technology Education, Language, and Arts: Jurnal Pengabdian Kepada Masyarakat Journal of Engineering and Technological Sciences
Mareli Telaumbanua
Department Of Agricultural Engineering, Faculty Of Agriculture, Lampung University
Aerospace Engineering Agriculture, Biological Sciences & Forestry Arts Humanities Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Earth & Planetary Sciences Education Electrical & Electronics Engineering Energy Engineering Environmental Science Health Professions Languange, Linguistic, Communication & Media Materials Science & Nanotechnology Mechanical Engineering Medicine & Pharmacology Public Health Social Sciences Veterinary Other

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APLIKASI BUDIDAYA SAYURAN HIDROPONIK SEBAGAI SARANA PEMBELAJARAN ANAK USIA DINI Agus Haryanto; Mareli Telaumbanua; Sugeng Triyono; Siti Suharyatun
Jurnal Pengabdian Kepada Masyarakat Sakai Sambayan Vol 7 No 2 (2023)
Publisher : Lembaga Penelitian dan Pengabdian Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jss.v7i2.259

Abstract

Kegiatan ini bertujuan untuk mengenalkan dan mengaplikasikan budidaya sayuran menggunakan teknologi hidroponik kepada anak-anak usia dini. Kegiatan dilaksanakan di TK IT Insan Taqwa di Desa Sidosari, Kecamatan Natar, Kabupaten Lampung Selatan. Kegiatan dilakukan dengan merancang, membuat dan menginstal perangkat budidaya hidroponik sistem ABC menggunakan pipa PVC 3 inchi sepanjang 16 m yang dilengkapi dengan ember kapasitas 80 L, pompa 125 W, dan timer analog 15 menitan. Setelah instalasi perangkat hidroponik, kegiatan dilanjutkan dengan pelatihan budidaya hidroponik yang disertai praktek penanaman sayuran selada. Hasil kegiatan menunjukkan bahwa setelah kurang lebih 4minggu, tanaman selada tumbuh dengan baik yang ditunjukkan oleh figur tanaman yang segar dan besar. Pada akhir minggu ke-5, tanaman selada dipanen oleh para. Dapat disimpulkan bahwa kegiatan ini berjalan dengan sukses yang ditunjukkan dari indikator keberhasilan yang meliputi (1) tersedianya satu unit kit hidroponik,(2) terlaksananya kegiatan sosialisasi dan praktek budidaya hidroponik, (3) terlaksananya budidaya hidroponik yang dikerjakan oleh guru dan siswa TK IT Insan Taqwa dari penanaman hingga panen.
Uji Kinerja Mesin Pencacah Tipe GX 160 untuk Pencacahan Tongkol jagung dan Ampas Tebu Muhammad Pijar; Siti Suharyatun; Mareli Telaumbanua; Agus Haryanto
Jurnal Agricultural Biosystem Engineering Vol 1, No 1 (2022): Maret 2022
Publisher : abe.fp.unila.ac.id

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jurnal abe.v1i1.5796

Abstract

Agricultural waste is widely used as feed or a mixture of feed for livestock. Before use, agricultural waste must be chopped so that livestock can easily eat it. One of the agricultural waste chopping machines is a multipurpose type chopper. The aim of the research was to test the performance of a multipurpose chopper machine for chopping corn cobs and bagasse. This study used a completely randomized factorial design, consisting of 2 factors, namely material (corncob and sugarcane bagasse) and and the rotational speed (RPM) which consists of 600, 800, 1000 and 1360. Each treatment combination was repeated 3 times. Parameters observed were working capacity, weight loss, fuel consumption, specific fuel consumption, and fineness modulus. The results of this study indicate that the work capacity of the bagasse higher than corncob. Working capacity at speeds of 600 RPM to 1000 RPM will increase with increasing speed. Materials and RPM not effect to material loss. fuel consumption and specific fuel consumption of bagasse (0,859 lt/h; 0,074 lt/kg) are higher than corn cobs (0,754 lt/h; 0,170 lt/kg. Fineness modulus of corn cobs is 2.504% and sugarcane bagasse is 2.373%.
EVALUASI TEKNIK PENYIMPANAN DINGIN TERHADAP ORGANOLEPTIK TELUR KONSUMSI Rahmawati, Winda; Kiromah, Isrofiatul; Telaumbanua, Mareli; Haryanto, Agus; Tamrin, Tamrin
Jurnal Peternakan (Jurnal of Animal Science) Vol 8, No 1 (2023): JURNAL PETERNAKAN (JURNAL OF ANIMAL SCIENCE)
Publisher : Universitas Muhammadiyah Tapanuli Selatan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31604/jas.v8i1.16747

Abstract

Telur merupakan bahan pangan yang tergolong cepat rusak. Oleh sebab itu sehingga perlu memerlukan dilakukan penanganan secara tepat untuk mempertahankan kualitasnya. Penyimpanan dingin dapat menjaga kualitas telur dan meningkatkan daya simpan. Tujuan dari penelitian adalah mengevaluasi kualitas telur konsumsi dengan suhu penyimpanan dingin yang berbeda melalui uji organoleptik. Rancangan penelitian yaitu Rancangan Acak Lengkap (RAL) dengan 3 ulangan. Jenis telur pada penelitian yaitu telur ayam ras, telur itik dan telur puyuh kemudian disimpan pada suhu dingin (5°C, 10°C dan 15°C) selama 60 hari. Parameter uji organoleptik yang diamati terdiri dari rasa, aroma, warna dan tekstur. Hasil penelitian yaitu telur yang disimpan pada suhu 5°C, 10°C dan 15°C tidak berpengaruh nyata terhadap aroma, warna, rasa dan tesktur telur pada tingkat kesukaan panelis. Aroma telur itik dinilai lebih amis daripada telur ayam dan telur itik. Warna kuning telur itik lebih terang dibandingkan telur ayam dan telur puyuh. Kesimpulan penelitian adalah uji organoleptik dari aroma, warna, rasa dan tekstur pada telur pada penyimpanan dingin selama 60 hari masih dapat diterima atau disukai oleh panelis.
Analisis Tingkat Kebisingan pada Workshop Alsintan UPTD Balai Benih Induk Tanaman Pangan dan Alsintan Provinsi Lampung Saputra, Muhamad Ogas; Suharyatun, Siti; Telaumbanua, Mareli; Warji, Warji
Jurnal Agricultural Biosystem Engineering Vol 2, No 4 (2023): December 2023
Publisher : abe.fp.unila.ac.id

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jabe.v2i4.8400

Abstract

Activities in agricultural machinery workshops must concern with Occupational Health and Safety (OHS), especially the physical conditions of the work environment. There are potential physical dangers, especially noise from machines in the workshop. This research aims to analyze the noise level at the UPTD Agricultural Machinery Workshop, Main Center for Food Crops and Agricultural Machinery, Lampung Province, and provides recommendations for control engineering. The parameters observed in the research were noise, temperature and humidity. Noise level was measured by using a sound level meter for the source of the sound when the machines were turned on, at fifty measurement points determined based on applicable regulations. Temperature and humidity were measured using a digital hygrometer thermometer, at three observation points. The measurement results were compared with the applied quality standards in Indonesia. Noise measurement resulted (88.29 ± 11.58) dBA, with 7 sound sources turned on simultaneously. Based on Minister of Manpower Regulation No. 5 of 2018, at this noise level the maximum exposure time for workers is 4 hours per day. If the time limit exceeds, workers must use ear protection or do the job in rotation (in shift work). Average temperature measurement resulted (28.8 ± 0.3)°C and average humidity measurement (61.5 ± 7.8)%. Referring to the Decree of the Minister of Health of the Republic of Indonesia No. 1405 of 2002, the air temperature and humidity at the UPTD Agricultural Machinery Workshop, Main Center for Food Crops and Agricultural Machinery, Lampung Province is still above the requirements for working environmental health. Keywords: Ergonomics, Noise, OHS, Physical Environment, Potential Physical Hazards.
Torefaksi Pelet Tandan Kosong Kelapa Sawit Menggunakan Reaktor Putar Purnomo, Cahyo Eko; Haryanto, Agus; Wisnu, Febryan Kusuma; Telaumbanua, Mareli
Jurnal Agricultural Biosystem Engineering Vol 1, No 1 (2022): Maret 2022
Publisher : abe.fp.unila.ac.id

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1379.764 KB) | DOI: 10.23960/jurnal abe.v1i1.5547

Abstract

Biomass is organic material produced from the process of photosynthesis. Biomass can be produced directly as a product or waste from processing agricultural or plantation products. One of the most abundant biomass is the waste generated from oil palm processing, including oil palm empty fruit bunches (OPEFB). Basically, OPEFB waste is only used as natural mulch or only disposed of in oil palm plantations. There are very few processing methods that convert into uniform shape and size biomass pellets, biomass pellets require an additional process called torrefaction, this is done to make bioenergy utilization more optimal. The quality of biomass pellets can be improved through torrefaction, which is a heat treatment process at a temperature range of 200°C–300°C under limited oxygen conditions. This study aims to examine the effect of torrefaction on the characteristics of OPEFB pellets. Pellet torrefaction uses a rotary reactor tube, a device that performs torrefaction with a tube that rotates 360º on a support shaft with the help of a transformer. Torrefaction temperatures applied were 220°C, 240°C, and 260°C with 15, 25, and 35 minutes. Pellet testing includes changes in chemical composition. The results showed that the water content of the pellets decreased from 10.57% to 1.64%. The water absorption test also showed that the torrefaction pellets were more resistant to water, so it would be very beneficial when the pellets were stored in humid conditions. Torrefaction causes a decrease in cellulose content, hemicellulose, and an increase in lignin content. Torrefaction with reactor tubes can improve the quality of EPEFB pellets and increase the added value of the product.
Rancang Bangun Sistem Kendali Suhu pada Reaktor Torefaksi Menggunakan Mikrokontroler Telaumbanua, Mareli; Setiawan, Wahyu Hendi; Haryanto, Agus; Wisnu, Febryan Kusuma; Rahmawati, Winda; Lanya, Budianto
Jurnal Ilmiah Rekayasa Pertanian dan Biosistem Vol 12 No 2 (2024): Jurnal Ilmiah Rekayasa Pertanian dan Biosistem
Publisher : Fakultas Teknologi Pangan & Agroindustri (Fatepa) Universitas Mataram dan Perhimpunan Teknik Pertanian (PERTETA)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jrpb.v12i2.669

Abstract

The increasing demand for energy causes a decrease in the availability of fossil fuels. Biomass from oil palm waste, namely empty oil palm bunches, can be used as an alternative fuel. The torrefaction process converts biomass into environmentally friendly biopellets with high added value. In this study, the calibration of the K-type thermocouple sensor was carried out using Arduino Uno and testing of the automatic pellet torrefaction tool from empty palm oil bunches. This study aims to develop an automatic control system for the pellet torrefaction tool. The design of the automatic torrefaction tool uses a microcontroller with a gas stove energy source. The dimensions of the support frame are the torrefaction tube (24 cm x 28 cm), the servo motor frame (15 cm x 9.5 cm) and the dynamo support frame (26 cm x 6.5 cm). The tool box is square (50 cm x 50 cm). The torrefaction tube has a volume of 2,826 cm3, a diameter of 15 cm and a height of 16 cm. The results showed that the system successfully reached a temperature of 300°C for 30 minutes from the initial temperature. The temperature accuracy test produced an average value of 92.12%. The stability of temperature control also proved to be quite good in achieving the specified setting point. The water content of torrefaction pellets at a temperature of 150-300°C was around 1-2%. The hydrophobicity of torrefaction pellets at a temperature of 250-300°C after being soaked for 24 hours had a clearer color and remained intact.
Kinerja Membran Mikrofiltrasi Untuk Menjadikan Air Olahan Instalasi Pengolahan Air Limbah Rumah Sakit Menjadi Air Bersih Santosa, Imam; Br Ginting, Daria; Murwanto, Bambang; Telaumbanua, Mareli
Jurnal Kesehatan Vol 15 No 1 (2024): Jurnal Kesehatan
Publisher : Poltekkes Kemenkes Tanjung Karang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26630/jk.v15i1.4117

Abstract

Problems arise when there are tax fees on groundwater use by hospitals. This will, of course, burden the hospital's operational costs. The solution to reducing groundwater use is the use of microfiltration membranes. Microfiltration membranes can be used to recycle wastewater into clean water so that it can be collected and used for cleaning, washing, and watering gardens. They can reduce groundwater taxes and hospital groundwater use. The research objectives are to know the efficiency of reducing wastewater recycling equipment from the wastewater treatment plant (WWTP) outlet using a microfiltration membrane. The research methodology used was a quasi-experiment in laboratories and workshops, with a pre-test (before treatment) and post-test (after treatment) design. Stage one Microfiltration Membrane is a medium for processing wastewater into clean water in the first stage. Stage two, Microfiltration Membrane, is a medium for processing wastewater into clean water. In the second stage, it ensures that clean water quality is met. The results that the efficiency of reducing the wastewater recycling equipment from the WWTP outlet using  Microfiltration Membrane for pH 7%, Temperature 6%, Turbidity 64%, Colour 85%, Dissolved Solids (TDS) 40%, Nitrate 70%, Nitrite 94%, dissolved Iron (Fe) 33%, Manganese  60%, Cadmium 50%, Lead  43%, Fluoride 46%, Cyanide 96%, Hardness (CaCO3) 11%. In conclusion, all the parameters studied experienced a decrease in concentration. This research suggests conducting further research to reduce the current research discharge so that the parameter reduction can be more significant.
Time and Workload Analysis to Determine Total Labor in the Arabica Coffee Harvesting Process Fil'aini, Raizummi; Juanto, Benedictus; Attamimi, Tahani Farhat; Valentino, Fandy; Telaumbanua, Mareli; Sari, Tri Novita; Mufidah, Zunanik
Applied Research in Science and Technology Vol. 4 No. 1 (2024): Applied Research in Science and Technology
Publisher : Research and Social Study Institute

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33292/areste.v4i1.50

Abstract

Farmers verify ripe coffee cherries, pick them individually, and place them in the harvest basket in the coffee harvesting process. This task typically takes 7-8 hours. During harvesting, farmers experience a physical workload that impacts their work capacity. This research aims to measure the qualitative and quantitative workload levels of the coffee harvesting process, determine the working time based on the farmers' Human Output Capacity, and calculate the total number of daily workers needed to achieve daily coffee production targets. The determination of the number of daily workers is based on the work capacity of the farmers. Farmers were categorized into two age groups: productive age (30-40 years) and non-productive age (50-60 years). Data observed included heart rate during harvest, heart rate calibration data, subjects' body characteristics, and coffee productivity. The results showed that the heaviest workload, related to verifying ripe cherries, fell into the medium category, with an energy consumption level of 3,370 Kcal per minute. The optimal working time for the coffee harvesting process is 6 hours for workers of productive age and 4 hours for workers of non-productive age. To meet production targets, 9 workers of productive age and 10 workers of non-productive age are required.
Design Of Environmental Conditions Of Transportation Simulation Instruments On Tomato (Solanum Lycopersicum) Mufidah, Zunanik; Jordy, Abdul Rachman; Fil'aini, Raizummi; Telaumbanua, Mareli; Fatikhunnada, Alvin
Journal of Tropical Agricultural Engineering and Biosystems - Jurnal Keteknikan Pertanian Tropis dan Biosistem Vol. 11 No. 1 (2023): April 2023
Publisher : Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.jkptb.2023.011.01.09

Abstract

Based on data from Badan Pusat Statistik (BPS) in 2017-2018, the tomato productivity in Indonesia has seen a year-on-year increase of 10% and 19%. However, during the transportation process of agricultural commodities, excessive vibration can lead to damage of tomato commodities. Therefore, the purpose of this study is to develop an environmental data recording device using Arduino technology, and to assess its performance by simulating vibration during transport. The aim is to ensure proper handling and storage of tomato commodities in the distribution process. The designs used are programming designs, functional designs, and structural designs. The results showed that the design of an arduino-based environmental data recording instrument, calibration results between the DHT22 sensor (temperature) and a digital hygrometer yielded a correlation equation value of y = 1.0475x – 1.5575, R2 for the DHT22 sensor was 0.9885, and for the calibration results between the vibration sensor and the vibrating table as a calibrator obtained a correlation equation value of y = 1.9471x-101.24, the calibration R2 value was 0.8088, the instrument accuracy performance test results were obtained by 80%. The stability test results of reading past the setting point, the control speed is 4.04 minutes, the result of the reliability coefficient value (r11) is 0.90. The reliability coefficient value from the stability test results is included in the very high reliability category, the system response at a setting point of 150 RPM takes 63 seconds and the system response at a setting point of 200 RPM takes 71 seconds. characteristics that occur in tomatoes during the transportation simulation process where at 100 RPM the test was carried out, the tomatoes experienced a collision and only a few were bruised due to the shock from the transportation simulation the tomatoes were damaged and collided between the tomatoes in the box, the greater the vibration received by the tomatoes on during the transportation simulation, the more tomatoes will experience physical damage.Test results on tomatoes with a degree of mechanical damage (bruises) due to vibration during transportation. In stack 1 100 RPM there was no damage to the fruit while the biggest bruising occurred in stack 3 with 200 RPM.
Production response of chilli (Capsicum annuum L.) to shoot pruning and application of different mulch types Telaumbanua, Syukur F; Barus, Asil; Irmansyah, Teuku; Telaumbanua, Mareli
Open Science and Technology Vol. 4 No. 1 (2024): Open Science and Technology
Publisher : Research and Social Study Institute

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33292/ost.vol4no1.2024.120

Abstract

Penelitian ini bertujuan untuk mengetahui respon produksi cabai (Capsicum annuum L.) terhadap pemangkasan pucuk dan aplikasi berbagai jenis mulsa. Penelitian ini dilakukan di Desa Ladang Bambu, Kabupaten Medan Tuntungan, Provinsi Sumatera Utara, pada ketinggian 30 meter di atas permukaan laut, mulai September 2017 sampai Februari 2018. Penelitian ini menggunakan rancangan acak kelompok dengan dua faktor perlakuan. Faktor I yaitu pemangkasan pucuk diberi kode "P" dengan empat umur pemangkasan, yaitu P0: tanpa pemangkasan sebagai kontrol, P1: saat tanam, P2: dua minggu setelah tanam (WAT), P3: empat minggu setelah tanam (WAT). Faktor II yaitu penggunaan mulsa diberi kode "M" dengan empat jenis, yaitu M0: tanpa mulsa sebagai kontrol, M1: mulsa plastik hitam perak, M2: mulsa jerami padi, M3: mulsa batang jagung. Hasil penelitian menunjukkan bahwa, tidak ada interaksi yang nyata antara pemangkasan pucuk dan aplikasi berbagai jenis mulsa terhadap produksi tanaman cabai di akhir penelitian. Pemangkasan tunas pada saat penanaman meningkatkan diameter batang, jumlah bunga, jumlah buah, dan produksi total. Perlakuan dengan mulsa plastik hitam perak meningkatkan diameter batang, jumlah bunga, jumlah buah, dan produksi total. This study aims to determine the response of chilli (Capsicum annuum L.) production to shoot pruning and application of different types of mulch. This study was conducted in Ladang Bambu village, Medan Tuntungan district, North Sumatra province, at an altitude of 30 metres above sea level, from September 2017 to February 2018. The study used a randomised block design with two treatment factors. Factor I: shoot pruning was coded "P" with four pruning ages, namely P0: without pruning as control, P1: at transplanting, P2: two weeks after transplanting (WAT), P3: four weeks after transplanting (WAT). Factor II: the use of mulch was coded "M" with four types, namely M0: without mulch as control, M1: black silver plastic mulch, M2: rice straw mulch, M3: maize stalk mulch. The results showed that, no significant interaction between pruning the shoots and the application of various types of mulch on chili plant production at the end of the study. Pruning the shoots at transplanting increased stem diameter, total number of flowers, number of fruits and total production. Treatment with black silver plastic mulch increased stem diameter, total number of flowers, number of fruits and total production.
Co-Authors Adi Susilo Agus Haryanto Agus Haryanto Agus Haryanto Agustin, Stefani Silvi Ahmad Suudi Aldo Christian Alvin Fatikhunnada, Alvin Amieria Citra Gita Amieria Citra Gita Andi Setiadi Andrianto, Rifqi Rhama Anggia Indriyani Annisa Nur Rachmawaty Asil Barus Attamimi, Tahani Farhat Bambang Purwantana Bambang Purwantana Br Ginting, Daria Budianto Lanya Budianto Lanya Cicih Sugianti Cicih Sugianti Dermiyati Dermiyati Diding Suhandy Eka Yana Ekaliana Ekaliana Eko Putra Elhamida Rezkia Amien Febryan Kusuma Wisnu Fil'aini, Raizummi Fil’aini, Raizummi Gigih Forda Nama Gita, Amiera Citra Herry Wardono Huda, Zulmiftah Imam Santosa Indriyawati, Agapetalia Irza Sukmana Jordy, Abdul Rachman Juanto, Benedictus khusnul khotimah Kiromah, Isrofiatul Kurniawan, Ahmad Ridho Kus Hendarto Lilik Sutiarso Lilik Sutiarso Marcus, Patrice Kevin Martinus Martinus Martinus, Martinus Meinilwita Yulia Meizano Ardhi Muhammad Meizano Ardi Muhammad Meizano Ardi Muhammad Mohammad Affan Fajar Falah Mufidah, Zunanik Muhammad Amin Muhammad Haviz Muhammad Pijar Muhammad, Meizano Ardhi Mulyani, Yessi murwanto, bambang Novi Apratiwi Panji Kurniawan Pulung Karo-Karo Purnomo, Cahyo Eko Putri, Laily Rahmadani Ribut Eko Wahyono Ridho Nurrohmanysah Rifqi Rhama Andrianto Ristanti Ristanti Riszal, Akhmad Rizza Wijaya Sandi Asmara Saputra, Muhamad Ogas Setiawan, Wahyu Hendi Simanjuntak, Fajar Agustus Siti Suharyatun Sony Ferbangkara Sri Rahayoe Sri Waluyo Sri Waluyo Sugeng Triyono Suskandini Ratih Dirmawati Syah, Aminudin Tamrin Tamrin Telaumbanua, Syukur Telaumbanua, Syukur F Teuku Irmansyah Titin Yulianti Tri Novita Sari, Tri Novita Tri Wahyu Saputra Tri Wahyu Saputra Trisya Septiana Valentino, Fandy Warji Warji Winda Rahmawati Winda Rahmawati Winda Rahmawati Winda Rahmawati Winda Rahmawati Wisnu, Febrian Kusuma Yohannes C Ginting