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INDONESIA
JURNAL REKAYASA DAN MANAJEMEN AGROINDUSTRI
Published by Universitas Udayana
ISSN : -     EISSN : 2503488X     DOI : -
Core Subject : Science, Agriculture, Engineering,
Agriculture, Biological Sciences & Forestry Chemistry Immunology & microbiology Industrial & Manufacturing Engineering
Journal of Agroindustrial Technology aims to publish original research results and policy papers written by researchers, experts as well as practitioners, in the field of agroindustries. Journal of Agroindustrial Technology encompasses a broad range of research topics in in the field of agroindustries covering process technology, industrial system engineering, and environmental management. Only the articles consist of novelty and excellent scientific contribution in agroindustrial technology fields can published in Journal of Agroindustrial Technology.
Arjuna Subject : Ilmu Pertanian dan Biologi (Semua) - Ilmu Pertanian dan Biologi (Lain-Lain)
Articles 117 Documents
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Karakteristik Ekstrak Pewarna Alami Bunga Bugenvil (Bougenvillea glabra) Dengan Variasi pH Pelarut Dan Daya Microwave Metode Microwave Assisted Extraction Ginting , Tesalonika; Wartini, Ni Made; Anggreni, Anak Agung Made Dewi
JURNAL REKAYASA DAN MANAJEMEN AGROINDUSTRI Vol 14 No 1 (2026): Maret
Publisher : Department of Agroindustrial Technology, Faculty of Agricultural Technology, Udayana University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/JRMA.2026.v14.i01.p04

Abstract

Bougainvillea (Bougainvillea glabra) has the potential to be a source of natural dyes, especially the pigment betacyine. The extraction of this compound can be done by various methods, one of which is Microwave Assisted Extraction (MAE). This study aims to determine the effect of solvent pH and microwave power on the characteristics of natural dye extract of bougainvillea flowers using the MAE method, as well as determine the best treatment of solvent pH and microwave power on the characteristics of natural dye extracts of bougainvillea flowers using the MAE method. The experimental design used was a factorial Group Random Design (RAK) with two factors, namely solvent pH consisting of pH 1; pH 1.62; pH 2.25 and microwave power consisting of 100 watts of power and 300 watts of power, with 6 treatment combinations with 3 groups based on the time of implementation. The data was analyzed using ANOVA and followed by Tukey's follow-up test using minitabs, and the determination of the best treatment was carried out the Effectiveness Index Test. The results showed that the pH of the solvent and the microwave power had an effect on the yield, total betacyine, redness level (a*), yellowness level (b*), and antioxidant capacity. The interaction between affects the yield, total betacyine, redness level (a*), and yellowness level (b*) of antioxidant capacity. The best treatment to produce natural dye extract of bougainvillea flowers using the MAE method based on the effectiveness index test was obtained from pH 2.25 and microwave power of 100 watts with a yield characteristic of 61.85%, total betayanin 21.84 mg/100g, antioxidant capacity of 388.50 mg GAE/100g, and color intensity (a*) 34.53; (b*)18,42
Analisis Pengendalian Mutu Produk Dupa Cempaka Dengan Pendekatan Statistical Process Control (SPC) Di Perusahaan XYZ Jaya, Kadek Bagus Putra; Yuarini, Dewa Ayu Anom; Wrasiati, Luh Putu
JURNAL REKAYASA DAN MANAJEMEN AGROINDUSTRI Vol 14 No 1 (2026): Maret
Publisher : Department of Agroindustrial Technology, Faculty of Agricultural Technology, Udayana University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/JRMA.2026.v14.i01.p05

Abstract

This study aims to identify the factors contributing to product defects in the incense stick production process and to formulate improvement recommendations to effectively reduce the defect rate at XYZ Company. The method used in this research is Statistical Process Control (SPC), a quality control approach that monitors, manages, analyzes, and improves process performance using statistical methods. The data analyzed in this study consist of defective product quantities from the production of Dupa Cempaka during March 2025. The analysis utilizes control charts, histograms, Pareto diagrams, p-charts, flowcharts, and cause-and-effect diagrams. The results indicate three main categories of product defects: breakage, peeling, and mold. Based on the Pareto diagram, the most dominant defects are peeling (56.68%) and breakage (41.12%). The p-chart analysis shows that the production process is not yet statistically stable. Furthermore, the cause-and-effect diagram identifies several key causes of defects, including dirty storage rooms, high temperature and humidity, unpredictable weather conditions, inappropriate tools, inconsistent and contaminated materials, frequent tossing of incense sticks, as well as employee discomfort and fatigue. Based on these findings, recommended improvements include controlling room temperature and humidity, using closed containers, developing standardized drying SOPs, implementing work rotation, increasing rest periods to reduce fatigue, and enhancing raw material selection and sorting before production.
Pemanfaatan Limbah Upacara (Canang) Menjadi Bahan Baku Briket Sebagai Sumber Energi Alternatif Ramah Lingkungan Andika, Ida Bagus Made Baskara; Swari, I Gusti Agung Ratih Pradnya; Saguna, I Gusti Ngurah Agung Indra; Ananda, I Gusti Ngurah Agung Satria
JURNAL REKAYASA DAN MANAJEMEN AGROINDUSTRI Vol 14 No 1 (2026): Maret
Publisher : Department of Agroindustrial Technology, Faculty of Agricultural Technology, Udayana University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/JRMA.2026.v14.i01.p12

Abstract

Canang waste, a type of organic waste from Balinese Hindu offerings, is commonly produced in traditional villages such as Desa Tihingan. This study aims to utilize canang waste as raw material for briquette production. The method employed is experimental, involving stages such as material collection, drying, shredding, carbonization, sieving, mixing, molding, and drying. Samples were tested using a bomb calorimeter to determine their Higher Heating Value (HHV) and Lower Heating Value (LHV). The results showed that canang briquettes have an HHV of 21.27 MJ/kg and an LHV of 19.64 MJ/kg, which are higher than those of mixed organic briquettes (HHV: 20.62 MJ/kg, LHV: 18.47 MJ/kg), but lower than prapen charcoal (HHV: 26.95 MJ/kg, LHV: 25.82 MJ/kg). These findings indicate that canang briquettes have potential as a viable alternative fuel. Moreover, this approach offers an environmentally friendly and sustainable solution for managing ceremonial waste.
Pengembangan Teknologi Wet Scrubber Untuk Meningkatkan Kualitas Lingkungan Pada Agroindustri Hita, Muhammad Arga; Choiron, Miftahul; Firstandika, Leader
JURNAL REKAYASA DAN MANAJEMEN AGROINDUSTRI Vol 14 No 1 (2026): Maret
Publisher : Department of Agroindustrial Technology, Faculty of Agricultural Technology, Udayana University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/JRMA.2026.v14.i01.p06

Abstract

Indonesia’s agroindustrial sector has experienced rapid growth in response to increasing demand for processed agricultural products; however, this development has also introduced environmental challenges in the form of air pollution from biomass combustion, such as sugarcane bagasse, tree branches, and organic waste. These combustion processes generate hazardous pollutants, including HCHO, TVOC, PM2.5, PM10, CO, and CO₂. This study aimed to develop and evaluate a wet scrubber system to reduce these emissions using three treatment methods: a water sprayer, a water trap, and a combination of both. Experiments were conducted using a mixture of sugarcane bagasse and organic waste with a combustion duration of 10 minutes and three replications for each treatment. Measured parameters included HCHO, TVOC, PM2.5, PM10, CO, CO₂, as well as water quality indicators (pH and TDS). Data were analyzed using ANOVA followed by Tukey’s HSD test. The results demonstrated significant reductions in HCHO (98.02%), TVOC (96.70%), CO (98.52%), and CO₂ (87.77%), with the combined method showing the best overall performance, although the effectiveness in reducing PM2.5 and PM10 remained limited. Overall, wet scrubber technology offers a practical and environmentally friendly solution for emission control in agroindustrial activities and supports the implementation of sustainable industrial practices.
Kajian Karakteristik Pengeringan Kulit Kopi Arabika Menggunakan Pengering Mekanis Pada Berbagai Suhu Yosika, Nur Ida Winni; Purbasari, Dian; Taruna, Iwan; Sutarsi, Sutarsi; Lestari, Ning Puji; Nofiyanti, Sri Handayani
JURNAL REKAYASA DAN MANAJEMEN AGROINDUSTRI Vol 14 No 1 (2026): Maret
Publisher : Department of Agroindustrial Technology, Faculty of Agricultural Technology, Udayana University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/JRMA.2026.v14.i01.p13

Abstract

Arabica coffee husk is a by-product of coffee agroindustry that is generated in large quantities and has not been optimally utilized, particularly in coffee-producing areas such as Bondowoso Regency, Indonesia. Proper postharvest handling is required to reduce its moisture content in order to extend shelf life and enable further processing. This study aimed to investigate the drying characteristics of Arabica coffee husk using a hot air oven at different temperatures (40, 60, and 80°C) and to determine the most suitable mathematical drying model. Fresh coffee husk samples weighing 100 g were used for each drying treatment. The observed parameters included moisture content reduction, drying rate, and moisture ratio. Experimental drying data were fitted using Newton, Page, Henderson and Pabis, Logarithmic, and Midili models. The results showed that increasing drying temperature significantly accelerated moisture removal and increased the drying rate. Drying occurred predominantly in the falling rate period, indicating that internal moisture diffusion controlled the process. Among the evaluated models, the Logarithmic model consistently provided the highest coefficient of determination and the lowest fitting errors at all drying temperatures. These findings demonstrate that the Logarithmic model is the most appropriate for predicting the drying behavior of Arabica coffee husk dried using a convection oven. The results of this study are expected to support process design and decision-making in the management of coffee agroindustry, particularly for the utilization of coffee husk in Bondowoso.
Potensi Dan Peran Serta Krama Subak Dalam Pengembangan Kawasan Agrowisata Di Kecamatan Mengwi Dan Kuta Utara, Kabupaten Badung Artaya, I Made Ari; Sugianto, I Made Agus; Manuaba, I Nyoman; Rumiati, I Gusti Ayu Ngurah Lita
JURNAL REKAYASA DAN MANAJEMEN AGROINDUSTRI Vol 14 No 1 (2026): Maret
Publisher : Department of Agroindustrial Technology, Faculty of Agricultural Technology, Udayana University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/JRMA.2026.v14.i01.p15

Abstract

Badung Regency is highly dependent on tourism, while the agricultural sector based on the subak system faces land conversion pressure and declining economic contribution. Integrating agriculture and tourism through subak-based agrotourism development is a strategic approach to sustain agrarian landscapes while improving community welfare. This study aimed to identify the potential of subak areas for agrotourism development and analyze the participation of krama subak (subak members) in Mengwi and North Kuta Districts, Badung Regency. A participatory–spatial approach was applied by combining Participatory Rural Appraisal (PRA) and Analysis of Tourism Operation Areas and Natural Attraction Objects (ADO-DTWA) across 83 subak. The results showed that all subak were categorized as moderately to highly potential, with key strengths in agro-cultural landscape attractiveness, environmental conditions, water availability, and accessibility. Werdhi Putra Sedana and Tegan subak were identified as highly potential due to their diverse attractions, basic facilities, and strong community support. Krama subak demonstrated high participation in cultural preservation, landscape management, educational attractions, and tourism services, although limitations in capacity, facilities, and marketing remain constraints. Spatially, Mengwi functions as the core subak-based agrotourism area, while North Kuta acts as a transitional agrarian–tourism gateway. Sustainable development requires strengthening community capacity, improving facilities, and implementing community-based governance models.
Vol 14 No 1 Maret 2026 JRMA, Admin
JURNAL REKAYASA DAN MANAJEMEN AGROINDUSTRI Vol 14 No 1 (2026): Maret
Publisher : Department of Agroindustrial Technology, Faculty of Agricultural Technology, Udayana University

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

Abstract

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Page 12 of 12 | Total Record : 117

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