cover
Article Per Year (5 Year)
All
Home Page
OAI Link
Editorial Team
Contact
Reviewer
Google Scholar
Contact Name
Mustofa
Contact Email
jtpg.poltekgo@gmail.com
Phone
+6282195027610
Journal Mail Official
jtpg.poltekgo@gmail.com
Editorial Address
Politeknik Gorontalo Jl. Muchlis Rahim, Panggulo Barat, Kec. Botupingge, Kab. Bone Bolango, Gorontalo - 96551
Location
Kota gorontalo,
Gorontalo
INDONESIA
JTPG (Jurnal Teknologi Pertanian Gorontalo)
Published by Politeknik Gorontalo
ISSN : -     EISSN : 25032992     DOI : https://doi.org/10.30869/jtpg
Core Subject :
The JTPG (Jurnal Teknologi Pertanian Gorontalo) is a peer-reviewed scientific journal dedicated to publishing high-quality original research articles, review papers, and short communications in the field of agricultural technology and related disciplines. JTPG aims to disseminate innovative research findings, technological developments, and practical applications that contribute to the advancement of sustainable agriculture, agricultural engineering, food technology, and environmental management. JTPG welcomes manuscripts covering, but not limited to, the following research areas: 1. Agricultural Mechanization 2. Agricultural Technology 3. Environment, Soil, and Water Conservation 4. Agricultural Machinery and Equipment Engineering 5. Characteristics of Agricultural Food and Materials
Arjuna Subject : -
Articles 120 Documents
 8   9   10   11   12 
Pengaruh Substitusi Tepung Daun Kelor pada Pembuatan Dimsum sebagai Sumber Gizi Hesti Yulianti; Fachri Ibrahim Nasution; Arief Fazlul Rahman; Reiza Mutia AR; Wimpy Prendika; Iffadhiya Fathin Adiba
JTPG (Jurnal Teknologi Pertanian Gorontalo) Vol 10 No 2 (2025): Jurnal JTPG (November)
Publisher : PROGRAM STUDI MESIN DAN PERALATAN PERTANIAN

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30869/jtpg.v10i2.1503

Abstract

Moringa plants have high nutritional content, especially in the leaves, so they have benefits for human health. Various innovations in food processing technology utilize moringa not only as a vegetable but can be processed into various forms of processed food, one of which is dimsum. Dimsum based on moringa leaf flour is a new food product where moringa leaves have a role as fortification to fulfill nutrition in food. Based on the description, this study was conducted to determine the effect of moringa leaf flour substitution (5%, 10%, 15%) on the quality and sensory properties of dim sum. This study used a research design model used was an experimental with a completely randomized design (CRD) of one factor, namely the formulation of moringa leaf flour with 3 replications. The treatment in this study was the substitution of moringa leaf flour and tapioca flour with a formulation of 5%:95% (D132), 10%:90% (D231), and 15:85% (D213). The analysis included organoleptic testing with hedonic tests by 20 untrained panelists and proximate testing. The best sensory test results for 5% moringa leaf flour substitution had a significant effect on the sensory evaluation assessment of appearance 3,73 , flavor 3,45 , aroma 3,68 and texture 3,65. The proximate test results for 5% moringa leaf flour substitution obtained a protein value of 12.69%, fat 1.32%, ash content 1.2%, moisture content 66,11% and carbohydrate 18.68%
Fertigasi Otomatis Nirdaya Berbentuk Jaring Laba-laba (Lingko) Rizan Abas; Mustofa Mustofa; Hariadi Hariadi; Syamsu Akuba
JTPG (Jurnal Teknologi Pertanian Gorontalo) Vol 10 No 2 (2025): Jurnal JTPG (November)
Publisher : PROGRAM STUDI MESIN DAN PERALATAN PERTANIAN

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30869/jtpg.v10i2.1539

Abstract

Pertanian Indonesia menghadapi tantangan berupa keterbatasan air, perubahan iklim, dan tuntutan peningkatan efisiensi produksi. Teknologi fertigasi menjadi salah satu solusi yang mampu meningkatkan pemanfaatan air dan nutrisi secara presisi. Penelitian ini bertujuan merancang dan mengevaluasi kinerja sistem fertigasi otomatis nirdaya berbasis desain lingko yang memanfaatkan gaya gravitasi tanpa kebutuhan energi listrik. Sistem dirancang menggunakan drum penampung berkapasitas 80 L, pipa PVC berbagai ukuran, serta mekanisme pengontrol ketinggian air otomatis. Tanaman uji adalah kangkung darat (Ipomoea reptans), dengan parameter pertumbuhan meliputi tinggi tanaman, panjang batang, panjang helai daun, dan jumlah daun selama periode 32 hari. Hasil penelitian menunjukkan bahwa desain fertigasi nirdaya berbentuk lingko mampu mendistribusikan air dan nutrisi secara relatif merata ke seluruh ring. Rata-rata tinggi tanaman berada pada kisaran 17,9-18,1 cm, panjang batang 12,5-12,8 cm, panjang helai daun 6,5-6,8 cm, serta jumlah daun 9-11 helai. Ring 1 menunjukkan keunggulan pada pembentukan daun, Ring 2 pada pemanjangan batang, sementara Ring 3 memberikan pertumbuhan yang stabil. Variasi antar ring dipengaruhi oleh jarak distribusi, perbedaan tekanan aliran, serta faktor lingkungan seperti intensitas cahaya dan kondisi media tanam. Temuan ini membuktikan bahwa sistem fertigasi otomatis nirdaya berbasis desain lingko efektif, hemat energi, dan berpotensi menjadi teknologi tepat guna untuk pertanian berkelanjutan, khususnya pada daerah dengan keterbatasan akses energi listrik. Pengembangan skala lebih luas dan pengujian pada komoditas lain direkomendasikan untuk meningkatkan potensi penerapannya dalam sistem budidaya modern.
Rancang Bangun Fermentor Berbahan Akrilik dengan Pompa Peristaltik sebagai Sistem Sirkulasi pada Produksi Bioetanol dari Molases Kerisna Darmawan Syahputra; Farhan Johansyah Putra; Desniorita Desniorita; Rosalina Rosalina; Riski Gunawan Nasution
JTPG (Jurnal Teknologi Pertanian Gorontalo) Vol 10 No 2 (2025): Jurnal JTPG (November)
Publisher : PROGRAM STUDI MESIN DAN PERALATAN PERTANIAN

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30869/jtpg.v10i2.1583

Abstract

Penelitian ini bertujuan untuk merancang, membangun, dan menguji kinerja fermentor berbahan akrilik yang diintegrasikan dengan sistem sirkulasi pompa peristaltik untuk produksi bioetanol dari molase. Fermentor berkapasitas 7 liter dirancang menggunakan material akrilik yang transparan dan mudah difabrikasi. Sistem sirkulasi pompa peristaltik diterapkan untuk menjaga homogenitas substrat, distribusi nutrisi, dan stabilitas suhu selama proses fermentasi berlangsung. Penelitian dilakukan dengan membandingkan dua kondisi operasi, yaitu fermentasi menggunakan sirkulasi dan tanpa sirkulasi, dengan memanfaatkan ragi Saccharomyces cerevisiae. Parameter yang diamati meliputi suhu, pH, penurunan nilai Brix (kadar gula), dan densitas selama fermenasi 5 hari. Hasil penelitian menunjukkan bahwa sistem sirkulasi berhasil mempertahankan suhu yang lebih stabil pada kisaran 30–31°C serta pH yang konstan. Fermentasi dengan sirkulasi juga mempercepat fase eksponensial pertumbuhan ragi, meskipun durasinya lebih singkat akibat konsumsi gula yang lebih cepat. Penurunan nilai Brix pada sistem bersirkulasi lebih signifikan, yang mengindikasikan efisiensi konversi substrat yang lebih baik. Disimpulkan bahwa fermentor akrilik dengan sistem sirkulasi pompa peristaltik efektif dalam meningkatkan homogenitas dan stabilitas kondisi fermentasi. Untuk pengembangan selanjutnya, diperlukan penambahan sistem kontrol otomatis dan optimasi kecepatan sirkulasi guna memaksimalkan produktivitas bioethanol.
Design and Performance Test of a Portable Rice Collector Machine Based on a Screw Conveyor Mechanism Indra Lasimpala; Siradjuddin Haluti; Mustofa Mustofa
JTPG (Jurnal Teknologi Pertanian Gorontalo) Vol 11 No 1 (2026): JTPG (May)
Publisher : PROGRAM STUDI MESIN DAN PERALATAN PERTANIAN

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30869/jtpg.v11i1.1621

Abstract

The process of collecting grain after drying is still largely done manually, thus requiring a relatively long time and potentially increasing yield losses. This study aims to design and test the performance of a portable, screw conveyor-based grain collector to improve the efficiency of the grain collection process during the post-harvest stage. The study was conducted through the stages of design, fabrication, and testing of the tool’s performance by comparing the manual method and the use of the tool based on parameters of working time, collection capacity, and grain loss. The machine was designed using a galvanized pipe frame, grain collection components, a screw conveyor system, sack supports, and a two-stroke engine drive. The test results showed that the use of the tool produced a working capacity of 2550 kg/hour, higher than the manual method of 1965.5 kg/hour. In addition, the use of the tool was able to reduce grain loss from 14.7% to 12.1% and increase the total efficiency of working time by up to 25.3%. Thus, the developed portable grain collector machine has the potential to be applied as an appropriate technology to support the efficiency of post-harvest handling of rice on a small to medium scale. The relatively low standard deviation values for all test parameters indicate a relatively consistent performance of the machine across all replicates. These results can be used as a basis for further development, particularly to evaluate the effects of variations in screw conveyor rotational speed, grain moisture content, and operating scale on machine performance. Therefore, the machine can be implemented as an appropriate technology to support efficient post-harvest rice handling on small to medium-scale farms, as well as increase the effectiveness and flexibility of its use in the field.
Comparison of Copra Drying Performance Using a Modified Hybrid Solar Collector Dryer versus Conventional Drying Sasmita Jamalu
JTPG (Jurnal Teknologi Pertanian Gorontalo) Vol 10 No 2 (2025): Jurnal JTPG (November)
Publisher : PROGRAM STUDI MESIN DAN PERALATAN PERTANIAN

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30869/jtpg.v10i2.1640

Abstract

Drying is an important postharvest process for reducing the moisture content of copra and maintaining its quality during storage. Conventional drying methods that rely on ambient conditions are strongly influenced by weather and temperature fluctuations, resulting in relatively slow and less controlled drying. This study evaluated the performance of a modified hybrid greenhouse dryer for copra drying by comparing its drying conditions with drying under ambient conditions. The experiment was conducted for five hours by monitoring drying temperature, initial and final moisture content, and moisture reduction rate. The results showed that the maximum temperature in the hybrid greenhouse dryer reached 45 °C, while the ambient drying condition reached 40 °C. The moisture content of copra dried using the hybrid system decreased from 65.91% to 11.61%, whereas the ambient-dried sample decreased from 52.51% to 16.88%. The corresponding moisture reduction rates were 10.86 %/h for the hybrid system and 7.13 %/h for ambient drying, indicating a 52.40% higher reduction rate in the hybrid system during the test period. The improved drying performance was associated with the utilization of solar energy through the collector, air circulation using a blower, and the thermal contribution of stone material within the drying system. Although the initial moisture contents differed between the two samples, the results indicate that the hybrid greenhouse dryer provided a more favorable drying condition and greater moisture reduction over the same drying period. Further studies should use uniform initial moisture content, sufficient experimental replications, and additional thermal-efficiency measurements to provide a stronger evaluation of system performance.
Design and Performance Testing of Cranes Lifting Agricultural Equipment and Machinery Mambela Mambela
JTPG (Jurnal Teknologi Pertanian Gorontalo) Vol 10 No 2 (2025): Jurnal JTPG (November)
Publisher : PROGRAM STUDI MESIN DAN PERALATAN PERTANIAN

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30869/jtpg.v10i2.1641

Abstract

Handling agricultural machinery and equipment with significant mass requires lifting aids that can enhance efficiency and reduce manual labor. This study aimed to design and test the performance of a lifting crane intended to assist in the lifting and relocation of agricultural machinery. The research involved design, fabrication, and performance testing using incremental loads of 45, 65, 100, 150, 200, 215, and 250 kg. Testing parameters included load mass, lifting time, lifting height, and the structural condition of the crane under load. The results showed that the crane measured 208 cm in length, 87 cm in width, and 195 cm in height, utilizing an HGS-B Micro Electric Rope Hoist motor for the lifting system. Lifting time increased from 7.35 seconds at a 45 kg load to 10.90 seconds at a 250 kg load, while lifting height decreased from 140 cm to 128 cm. Although the crane was capable of lifting loads up to 250 kg, structural bending in the legs began to occur within the 215-250 kg load range. Consequently, the recommended maximum operating load is 200 kg. The study concludes that the designed crane has the potential to serve as a lifting and handling aid for agricultural machinery, provided that load limits and structural integrity are taken into account.
Agricultural Technology in Climate-Smart Maize Systems: Integrating Digital, Agronomic, Biological, and Inclusive Innovations Yunita Djamalu; Jumiati Ilham; Fuad Pontoiyo; Lanto Mohamad Kamil Amali
JTPG (Jurnal Teknologi Pertanian Gorontalo) Vol 11 No 1 (2026): JTPG (May)
Publisher : PROGRAM STUDI MESIN DAN PERALATAN PERTANIAN

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30869/jtpg.v11i1.1637

Abstract

Agricultural technology is reshaping maize systems, yet its contribution to sustainable intensification depends less on the novelty of individual tools than on their integration across genetics, sensing, agronomy, ecology, institutions, and value chains. This structured critical review synthesizes 70 Scopus-indexed studies published from 2021 to 2025 to assess how recent technologies influence productivity, resource-use efficiency, climate resilience, environmental performance, and farmer welfare. The evidence shows rapid progress in unmanned aerial vehicle imaging, hyperspectral sensing, machine learning, crop modeling, variable-rate management, precision irrigation, and digital extension. These tools improve diagnosis and prediction, but their agronomic value is realized only when linked to actionable management rules. Conservation agriculture, subsurface drip fertigation, optimized nitrogen placement, controlled-release fertilizers, biochar-based amendments, microbial inoculants, and stress-targeted nanomaterials can raise yield or reduce environmental burdens, although performance is strongly conditioned by soil, climate, formulation, and management. Genomic prediction, high-density genotyping, gene editing, and high-throughput phenotyping are also converging toward environment-specific breeding. Across smallholder contexts, adoption is shaped by profitability, credit, market access, organizational membership, risk, and the compatibility of technologies as a package; information alone is rarely sufficient. Important trade-offs include microplastic accumulation from film mulching, nitrate displacement after ammonia-control interventions, uncertain nanoparticle safety, and digital model transferability. The review proposes an integrated framework in which sensing, prediction, intervention, verification, and institutional delivery operate as a closed decision loop. Future research should prioritize interoperable data, multi-location validation, whole-system environmental accounting, affordability, and co-designed technology bundles that deliver measurable gains under real farm constraints across diverse production regions.
Drying Kinetics and Convective Heat Transfer of Coconut-Shell Biobriquettes in a Dual-Blower Tray Dryer Aulia Utari Sitorus; Reva Adinda Putri; Febi Indrawati; Harmiwati N H; Desniorita Desniorita
JTPG (Jurnal Teknologi Pertanian Gorontalo) Vol 11 No 1 (2026): JTPG (May)
Publisher : PROGRAM STUDI MESIN DAN PERALATAN PERTANIAN

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30869/jtpg.v11i1.1638

Abstract

Biobriquette quality is strongly determined by the drying process, yet the relationship between drying conditions, product quality, and the underlying convective heat transfer mechanism is rarely quantified together. This study evaluates the drying kinetics, product quality, and convective heat transfer characteristics of coconut-shell biobriquettes dried using a dual-blower tray dryer with IoT-based temperature control. Biobriquettes were dried at temperatures of 75-105 °C and durations of 60-150 minutes, and the results were compared with sun drying and with the Indonesian National Standard (SNI 01-6235-2000). The lowest moisture content, 3.81 ± 0.37%, was obtained at 105 °C for 120 minutes, meeting the SNI requirement (maximum 8%), while extending the drying time to 150 minutes caused surface cracking from excessive internal stress. The tray dryer reduced moisture content roughly eight times more than sun drying (3.81% vs. 30.29%) and achieved a drying rate about 4.5 times higher (0.000780 vs. 0.000171 g.cm-2·min-1); these differences, together with the effect of drying temperature and time, were statistically significant (p < 0.05; independent-samples t-test for the tray-dryer-vs-sun-drying comparison and one-way ANOVA with Tukey’s HSD post-hoc test for the temperature and time comparisons). The mean ash content (8.66 ± 0.09%, n = 2) remained slightly above the SNI threshold, indicating room for improvement in carbonization or binder formulation. Convective heat transfer analysis showed a turbulent airflow regime (Re = 660,158.76) with a heat transfer coefficient of 41.01 W.m-2·K-1, higher than a comparable tray-dryer study (25.47 W.m-2·K-1), consistent with forced convection being an important contributor to the observed moisture removal and product quality; as no direct comparison with a single-blower configuration was performed within this study, this interpretation is based on comparison with values reported elsewhere in the literature rather than a controlled experimental comparison.
Purification of Lipase Enzyme from Oil Palm Mesocarp by Ammonium Sulfate Fractionation: Activity and Storage Stability Ririn Arsy Gunawan; Nurfajrina Husna Rahimi; Rita Youfa; Addin Akbar; Riski Gunawan Nasution
JTPG (Jurnal Teknologi Pertanian Gorontalo) Vol 11 No 1 (2026): JTPG (May)
Publisher : PROGRAM STUDI MESIN DAN PERALATAN PERTANIAN

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30869/jtpg.v11i1.1639

Abstract

This study examines the isolation and salting-out fractionation of lipase enzyme from oil palm mesocarp as a preliminary step toward preparing a biocatalyst for enzymatic biodiesel production, aimed at overcoming the limitations of conventional acid and base catalysts such as soap formation, corrosiveness, and difficulty of separation and reuse. Lipase was isolated from oil palm mesocarp through extraction using phosphate buffer, then fractionated by salting-out with ammonium sulfate at four saturation ranges (0-20%, 20-40%, 40-60%, and 60-75%). Volumetric enzyme activity (U/mL) was determined by acid-base titration, while storage stability was evaluated by comparing the activity of fresh enzyme with that of enzyme stored for 2 weeks at 18 oC. The crude extract obtained from isolation had a moisture content of 69.19%, indicating that the enzyme was in a fresh condition prior to fractionation. Enzyme activity increased consistently from the crude extract (4.16 U/mL) to Fraction IV (53.59 U/mL), an increase of about 12.9-fold; because protein concentration was not determined, this increase reflects volumetric activity rather than specific activity or purification fold, and is consistent with, but does not by itself confirm, separation of lipase from co-precipitating, less active proteins. After 2 weeks of storage, all fractions showed a decline in activity, but to different degrees: the crude extract lost 53.85% of its activity, whereas Fraction IV lost only 4.37%. These findings, based on single measurements, suggest that ammonium sulfate fractionation not only increases the volumetric activity of lipase but may also improve its short-term storage stability. Fraction IV is accordingly proposed as a promising biocatalyst candidate for further application in enzymatic biodiesel production from high-FFA feedstocks; confirmation through replicated measurements, protein/purity characterization, and direct catalytic testing is recommended before firmer conclusions are drawn, and further work on immobilization and stabilizing additives is suggested to extend its storage life.
Water Hyacinth (Eichhornia crassipes) Biomass for Agricultural Materials: A Review of Processing Pathways Siti Fauziah; Ervan Hasan Harun; Sarinah Pakpahan; Arifin Matoka
JTPG (Jurnal Teknologi Pertanian Gorontalo) Vol 11 No 1 (2026): JTPG (May)
Publisher : PROGRAM STUDI MESIN DAN PERALATAN PERTANIAN

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30869/jtpg.v11i1.1642

Abstract

Water hyacinth (Eichhornia crassipes) is simultaneously an invasive aquatic burden and a potentially valuable lignocellulosic feedstock for agricultural materials. This review critically evaluates its material potential through a structured synthesis of 51 studies supplied in the source corpus, spanning direct water-hyacinth evidence and transferable findings from agricultural residues, biochars, cellulose derivatives, hydrogels, films, composites, adsorbents, and thermal-storage systems published mainly during 2021-2026. The evidence is organized around feedstock variability, physical architecture, chemical composition, thermal conversion, and application-specific structure–property relationships. Direct evidence confirms that water-hyacinth biochar can reduce thermal conductivity and volumetric heat capacity in soil blends, but the corpus lacks standardized datasets for untreated plant fractions, seasonal composition, contaminant burdens, and long-term field performance. Cross-biomass studies show that alkali treatment, bleaching, hydrolysis, silane modification, pyrolysis, activation, and hybridization can convert low-density plant tissue into cellulose fillers, nanocellulose, porous carbon, controlled-release matrices, insulation products, and functional coatings. The synthesis indicates that water hyacinth is most credible as a locally processed feedstock for biochar-based soil systems, sorbents, water-retentive composites, biodegradable films, low-load panels, and thermal-management components. Its high moisture burden, hydrophilicity, heterogeneous ash and mineral content, and potential accumulation of pollutants remain decisive constraints. A design framework is proposed that links plant fraction, pretreatment severity, porosity, surface chemistry, crystallinity, and thermal stability to agricultural function. Future progress requires fraction-specific characterization, contaminant-safe harvesting, low-energy dewatering, benchmarked life-cycle assessment, release and leaching tests, field validation, and standards that distinguish direct water-hyacinth data from analogical inference for circular and climate-resilient agricultural production systems.

Page 12 of 12 | Total Record : 120

 8   9   10   11   12 

Filter by Year

2016 2026


Reset
Filter By Issues
All Issue Vol 11 No 1 (2026): JTPG (May) Vol 10 No 2 (2025): Jurnal JTPG (November) Vol 10 No 1 (2025): Jurnal JTPG (Mei) Vol 9 No 2 (2024): Jurnal JTPG (November) Vol 9 No 1 (2024): Jurnal JTPG (Mei) Vol 8 No 2 (2023): Jurnal JTPG (November) Vol 8 No 1 (2023): Jurnal JTPG (Mei) Vol 7 No 2 (2022): Jurnal JTPG (November) Vol 7 No 1 (2022): Jurnal JTPG (Mei) Vol 6 No 2 (2021): Jurnal JTPG (November) Vol 6 No 1 (2021): Jurnal JTPG (Mei) Vol 5 No 2 (2020): Jurnal JTPG (November) Vol 5 No 1 (2020): Jurnal JTPG (Mei) Vol 4 No 2 (2019): Jurnal JTPG (November) Vol 4 No 1 (2019): Jurnal JTPG (Mei) Vol 3 No 2 (2018): Jurnal JTPG (Oktober) Vol 3 No 1 (2018): Jurnal JTPG (April) Vol 2 No 2 (2017): Jurnal JTPG Vol 1 No 2 (2016): Jurnal JTPG (Oktober) Vol 1 No 1 (2016): Jurnal JTPG (Mei) More Issue