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Jurnal BETA (Biosistem dan Teknik Pertanian)
Published by Universitas Udayana
ISSN : -     EISSN : 25023012     DOI : https://doi.org/10.24843/JBETA.2025.v13.i02
Core Subject : Science, Agriculture,
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology
Jurnal BETA (Biosistem dan Teknik Pertanian) memuat hasil penelitian di bidang teknik biosistem (biosystem engineering). Cakupan dari jurnal ini merentang dari aplikasi ilmu keteknikan untuk pertanian. Diantara bidang ilmu tersebut, yang menjadi fokus adalah Bidang Manajemen Keteknikan Pertanian, Teknologi Pascapanen khususnya produk Hortikultura, Rekayasa dan Ergonomika, Konservasi Sumber Daya Alam, serta khusus tentang aplikasi Instrumentasi dan Sistem kontrol dalam bidang pertanian.
Arjuna Subject : -
Articles 740 Documents
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Efek Jatuhan dengan Berbagai Ketinggian pada Kemasan Kotak Karton terhadap Kentang Bibit (Solanum Tuberosum L): Effects of Falls of Various Heights in Carton Box Packaging on Seed Potatoes (Solanum Tuberosum L) Ida Ayu Rina Pratiwi Pudja; I Gusti Ketut Arya Arthawan; Ida Bagus Andika Virga Pranadipta
Jurnal BETA (Biosistem dan Teknik Pertanian) Vol 13 No 2 (2025): September
Publisher : Program Studi Teknik Pertanian dan Biosistem, Fakultas Teknologi Pertanian, Universitas Udayana, Badung, Bali, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/j.beta.2025.v13.i02.p19

Abstract

Kentang merupakan komoditas pangan yang penting di Indonesia dan dibutuhkan sepanjang tahun disamping beras sebagai bahan pangan utama. Dengan meningkatnya produksi, permintaan kentang di banyak negara di dunia juga meningkat. Hal ini diantisipasi untuk mendorong dan mendukung pertumbuhan pasar kentang di tahun-tahun mendatang. Untuk kepentingan pemasasaran, serta mendapatkan harga yang bersaing produsen (pedagang) harus memperhatikan indikator luas jangkauan pembelian, volume pendistribusian dan kemasan yang digunakan. Efek jatuhnya kentang dengan berbagai ketinggian pada kemasan kotak karton perlu diteliti untuk mengetahui seberapa besar kerusakan yang dapat terjadi. Kentang bibit dan kemasan kotak karton akan digunakan sebagai bahan ujinya. Penelitian ini bertujuan untuk mengetahui pengaruh ketinggian jatuhan terhadap kerusakan kentang yang dikemas dalam kotak karton. Penelitian ini menerapkan rancangan acak lengkap (RAL) dengan 6 faktor. Variasi jarak yang diuji meliputi 0 cm, 50 cm, 100 cm, 150 cm, 200 cm, 250 cm, dengan masing-masing perlakuan diulang tiga kali. Variabel yang diperhatikan meliputi jumlah uji kejatuhan kemasan, susut bobot, kerusakan fisik pada kentang dan daya serap kemasan. Hasil dari perlakuan uji kemasan kotak karton dengan jarak 0 cm, 50 cm, 100 cm, 150 cm, 200 cm, 250 cm. Perlakuan uji kejatuhan kemasan kotak karton tidak berpengaruh pada kejatuhan kemasan kotak karton dengan hasil nilai perlakuan F 0.008982 > F crit 1.737467. Berdasarkan hasil tersebut, berat kentang tidak berpengaruh nyata terhadap susut bobot kentang.
Pengaruh Ketebalan Dinding Kotak Pendingin Termoelektrik Terhadap Kinerja Kotak Penyimpanan Dingin Berbasis Tec1-12715 Sigit aris mahendra putra; Ida Bagus Putu Gunadnya; Ni Luh Yulianti; Bintang Madrini Ida Ayu Gede
Jurnal BETA (Biosistem dan Teknik Pertanian) Vol 14 No 2 (2026): INPRESS
Publisher : Program Studi Teknik Pertanian dan Biosistem, Fakultas Teknologi Pertanian, Universitas Udayana, Badung, Bali, Indonesia

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Abstract

Research to develop environmentally friendly cooling systems continues to be carried out. One widely studied eco-friendly cooling system is the thermoelectric cooling (Thermoelectric Cooler/TEC) system. This study aims to determine the effect of cooler box wall thickness and device operating time on cooling performance (COP) and temperature inside the storage room of a TEC1-12715-based cooler box. The study utilized a two-factor factorial Randomized Block Design (RBD). The first treatment consisted of three variations of styrofoam wall thickness, namely 2 cm, 4 cm, and 6 cm. The other treatment was the device operating time with periodic recording intervals of 20, 40, and 60 minutes. The storage room of the cooler box had a volume of 17.5 liters. Observations were conducted for 60 minutes by measuring the temperature inside the box and electrical parameters such as DC voltage and current. The results showed that the factors of box wall thickness and operating time separately had a highly significant effect (p < 0.01) on the COP value, but their interaction had no significant effect (p > 0.05). Thicker box walls led to a decrease in the COP value; conversely, longer operating times increased the COP. The significantly highest COP value was obtained at a wall thickness of 2 cm with a value of 0.123. An increase in the cooler box wall thickness caused the storage room temperature to become higher. The lowest storage room temperature was obtained from the 2 cm cooler box wall thickness treatment, which was 16.3°C. (Roboto10 pt, Justify, Italic).
Desain Alat Bantu Pemotong Tahu dengan Pendekatan Metode Nigel Cross Dan Value Engineering Rizqi Wahyudi; Asrori Latif
Jurnal BETA (Biosistem dan Teknik Pertanian) Vol 14 No 2 (2026): INPRESS
Publisher : Program Studi Teknik Pertanian dan Biosistem, Fakultas Teknologi Pertanian, Universitas Udayana, Badung, Bali, Indonesia

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

Abstract

The main issue at Pak Sujadi's tofu factory is the cutting process, which is still done manually and results in size variation defects. The manual tofu cutting process produces 47 defective pieces due to size variation and takes 81.79 seconds. Improving the efficiency of the production process has become the main focus in the development of tools in the food industry, including at Pak Sujadi's tofu factory. This research aims to design a more efficient tofu cutting tool using the Nigel Cross method and value engineering. The Nigel Cross method is applied through seven systematic stages, from goal classification to improvement details (value engineering). The value engineering approach is used to reduce costs without compromising the quality and functionality of the tool. The results of the tofu cutter research show that it can reduce the cutting process time by 70.44% and decrease the defect rate of tofu size variation by 95.74%. The value engineering method reduces the material costs of the tool by 22%. The materials used in the tool consist of grip rubber handle pads, hollow aluminium handles, handle supports, and cutting matrices made of stainless-steel plates.
Kajian Efektivitas Beberapa Model Tumpukan Pada Pengomposan Kotoran Sapi Dan Jerami I Wayan Krispedana; Yohanes Setiyo; Bintang Madrini
Jurnal BETA (Biosistem dan Teknik Pertanian) Vol 10 No 1 (2022): April
Publisher : Program Studi Teknik Pertanian dan Biosistem, Fakultas Teknologi Pertanian, Universitas Udayana, Badung, Bali, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/JBETA.2022.v10.i01.p02

Abstract

The biomass of the rice harvest is in the form of straw waste produced in one harvest season reaching 25 tons/ha and can be used as raw material for making compost. This research was conducted to determine the effect of different composting pile models of cow manure and straw, and to know the appropriate pile model so that the composting process of cow manure and straw produces compost in accordance with SNI No. 19-70302004. This study used 3 treatments, namely: P1 (treatment using an open windrow pile model), P2 (treatment using a static pile model), P3 (treatment using a Chinese pile model). The materials used in each treatment have a weight of 35 kg with a ratio of straw and cow manure of 2: 1. The observed parameters are pH, moisture content, temperature, nitrogen, carbon, and C/N ratio. The composting process with P3 treatment using the china model pile treatment took 48 days, P2 treatment days using a static pile was take 51 days and P1 using an open windrow pile was take 45 days, the results of composted straw and cow manure on the three treatments had met the SNI No. 19-70302004 which is used as a reference for assessing the quality of compost.
KAJIAN TENTANG PERLAKUAN JARAK ANTAR ELEKTRODA TEMBAGA TERHADAP KINERJA SENSOR KONDUKTIVITAS LISTRIK TANAH TIPE KAPASITIF Gede Andri; I Made Anom. S. Wijaya; I Gede Putu Budi Sanjaya
Jurnal BETA (Biosistem dan Teknik Pertanian) Vol 3 No 1 (2015): April
Publisher : Program Studi Teknik Pertanian dan Biosistem, Fakultas Teknologi Pertanian, Universitas Udayana, Badung, Bali, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/j.beta.2015.v03.i01.p01

Abstract

The measurement of EC can be conducted in two ways, namely electromagnetic induction and direct contact. This study using capacitive direct contact. The aims of this study were to determine the relationship between distance, shape and electrode materials to the measurements performance, and to determine to treatment that has the best performance. The study was started by designing the electrodes then continued by functional test and performance test. The treatments used was electrodes distances of 3, 6, 9, 12 & 15 mm. The electrode probe was inserting into the soil with the depth of 20 cm to get the frequency and at the same time soil sample was collected for analyzed in the laboratory to get the EC values. Based on those data the relationship of between soil frequency and EC were then analyzed. The results indicated that the best performance electrode with distance 3 mm. The equation of soil frequency and EC was EC = 0.186875 Fsoil - 10.5695 with R2 = 0.861, RMSE = 0.04, stability = 0.04 and respond time = 37.35 second.
ANALISIS PROFIL SUHU PADA GREENHOUSE TIPE ARCH UNTUK BUDIDAYA BUNGA KRISAN (Chrysanthemum morifolium) Ni Putu Yuliasih; Sumiyati Sumiyati; Yohanes Setiyo
Jurnal BETA (Biosistem dan Teknik Pertanian) Vol 4 No 1 (2016): April
Publisher : Program Studi Teknik Pertanian dan Biosistem, Fakultas Teknologi Pertanian, Universitas Udayana, Badung, Bali, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/j.beta.2016.v04.i01.p01

Abstract

This research was describe about temperature profile on Arch Greenhouse with the curved shape of roof and square wall for Chrysanthemum (Chrysanthemum morifolium) that cultivated on Arch Greenhouse. The aims of this research were to obtain a temperature profile on arch greenhouse, to determine the building height of arch greenhouse which suit for chrysanthemum cultivation. Height treatments of greenhouse was separated by 3 levels i.e. 2.5 m, 3.0 m, and 3.5 m. Chrysanthemum seeds varietys used in this research was Fiji white. To measure the temperature used temperature and humidity meter. Temperature measurement carried out by 2 times start from a week before planting (empty condition) and plant age was 45 days after planting. Doing the measurement on morning, noon, and afternoon. Analysis data of temperature was done with interpolation to determine profile contour line of analysis temperature. The result showed that there are the different shape and contours distribution profile of microclimate for difference height. The level of growth plan on each treatments showed a better productivity on greenhouse with height 2.5 m when compared with the others. Greenhouse with height 2.5 m produced flower quality which suit as the SNI with average of height plan was 81.93 cm, grooming age was 46 days, amount flower was 5 florets per stem, flower wide was 44.26 cm, and dry weight was 13.11 gram.
Tingkat Kepuasan Petani Bawang Prei (Allium ampeloprasum L.) terhadap Penggunaan Pupuk Organik di Desa Candikuning, Baturiti, Tabanan, Bali. Ni Luh Rani Sulastri; I Made Anom Sutrisna Wijaya; Ida Ayu Rina Pratiwi Pudja
Jurnal BETA (Biosistem dan Teknik Pertanian) Vol 8 No 2 (2020): September
Publisher : Program Studi Teknik Pertanian dan Biosistem, Fakultas Teknologi Pertanian, Universitas Udayana, Badung, Bali, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/JBETA.2020.v08.i02.p01

Abstract

Leek is one of the horticultural crops that is widely cultivated by farmers in Candikuning Village since the last 10 years. One of the organic fertilizers used by leek farmers is postal organic fertilizer made from a mixture of chicken manure and husks (grain husks). The research aims to analyze the level of satisfaction of farmers and identify the factors that influence the satisfaction of farmers as consumers of fertilizer. Datacollected through a random survey using questionnaires and interviews with 50 farmers of leeks using organic fertilizer Postal in Candikuning Village in April-May 2019. Analysis was conducted using descriptive methods, Importance Performance Analysis (IPA), and Customer Satisfaction Index (CSI). The results of this study indicate that postal organic fertilizer users are dominated by productive age farmers(58%), elementary-junior high school level education (84%), side jobs in agriculture (56%). Farmers were satisfied (CSI: 72.27%) on the performance of Postal organic fertilizer. The conclusion of this study is the satisfaction of farmers who use organic fertilizer on leek plants by 72.27%, which means farmers are satisfied. Farmer satisfaction is influenced by the ability to increase yields, product prices and product packaging
Pengolahan Tanah Menggunakan Bajak Singkal Lebih Sedikit Memerlukan Air Irigasi daripada Bajak Rotary Gusti Bagus Alit Budi Artawan; I Wayan Tika; Nyoman Sucipta
Jurnal BETA (Biosistem dan Teknik Pertanian) Vol 7 No 1 (2019): April
Publisher : Program Studi Teknik Pertanian dan Biosistem, Fakultas Teknologi Pertanian, Universitas Udayana, Badung, Bali, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/JBETA.2019.v07.i01.p01

Abstract

This research was conducted to know the difference of irrigation water requirement in the preparation of land using chisel plow and rotary plow. The variables observed in this study include: solum volume, soil porosity, initial moisture content of the soil, water requirements for inundation, puddle volume, and duration of soil tillage. Location used as sample of paddy field as much as 15 point sample for each plow which is grouped into three locations that is at upstream, middle, and downstream. At each location five rice samples were taken for each plow treatment. The volume of solum on the treated rice field using the chisel plow of 2122.00 m3 / ha while the volume of solum using rotary plow of 2.096,33 m3 / ha. The initial soil moisture content in paddy field used as sample for chisel plow is 52,98% while rotary plow is 45,63%. The water requirement for the saturation of paddy field that is processed by rotary plow is bigger than the chisel plow is 505.97 m3 / ha, whereas in the chisel plow is 377,11 m3 / ha. The volume of inundation in the rotary plow is greater than the chisel plow rotary plow of 401.33 m3 / ha and chisel plow of 141.00 m3 / ha. For the length of time required to cultivate the soil, the chisel plow takes longer time of 29.69 hours / ha, while the rotary plow takes 14.35 hours / ha. The results of this study indicate that the processing of soil using plows of chisel requires less water than the rotary plow. In the processing of the soil using the plot of water chisel required is 5.07 l/dt, while for the rotary plow requires water as much as17.691 / dt
Sistem Manajemen Rantai Pasokan terhadap Nilai Tambah dan Kelembagaan Biji Kakao (Theobroma Cacao L.) di Kecamatan Selemadeg Timur Kabupaten Tabanan I Putu Agung Surya Negara; I Gusti Ngurah Apriyadi Aviantara; Ni Luh Yulianti
Jurnal BETA (Biosistem dan Teknik Pertanian) Vol 6 No 1 (2018): April
Publisher : Program Studi Teknik Pertanian dan Biosistem, Fakultas Teknologi Pertanian, Universitas Udayana, Badung, Bali, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/j.beta.2018.v06.i01.p01

Abstract

Cocoa (Theobroma cacao L.) is a major commodity in Bali, but the agribusiness system has not provided sufficient prosperity for smallholder farmers. This study aimed to examine the supply chain management and institutional systems of cocoa beans in Selemadeg Timur, Tabanan Regency, and to determine the superiority of each supply point and profit distribution from farmers to cocoa collectors. The study was conducted in two stages: the first stage used a qualitative descriptive method to analyze supply chain management and institutional systems, and the second stage applied the Hayami method to assess the superiority value of supply points and profit distribution. Sampling included simple random sampling for farmers and total sampling for middlemen. The results revealed two main distribution patterns: in the first, farmers sell to middlemen, who then sell to sub-district collectors, regency collectors, provincial collectors, and finally cocoa factories; in the second, farmers sell directly to sub-district collectors, who then sell to regency and provincial collectors, and finally to chocolate factories. The supply chain institutional system is classified as a general trading pattern. Farmers achieved the highest superiority values, ranging from Rp. 12,645.31 to Rp. 13,430.79 per kilogram, with profits of Rp. 356.47 to Rp. 1,306.96 per kilogram. The lowest superiority values were recorded by district-level collectors, at Rp. 999.93 per kilogram, with profits of Rp. 732.61 per kilogram.
PENENTUAN UMUR SIMPAN BUMBU RUJAK DALAM KEMASAN BOTOL PLASTIK MENGGUNAKAN METODE ARRHENIUS Ida Ayu Agung Putri Trisiana Dewi; Ida Bagus Putu Gunadnya; Ida Ayu Rina Pratiwi Pudja
Jurnal BETA (Biosistem dan Teknik Pertanian) Vol 3 No 1 (2015): April
Publisher : Program Studi Teknik Pertanian dan Biosistem, Fakultas Teknologi Pertanian, Universitas Udayana, Badung, Bali, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/j.beta.2015.v03.i01.p02

Abstract

The objectives of this research were: to determine critical parameters and to estimate it’s shelf-life using Accelerated Shelf-Life Testing (ASLT) with Arrhenius method. Rujak seasoning that packed in plastic bottle was stored at three storage temperature 35oC, 45oC, and 55oC. Each room storage was loaded with three samples. This research was carried out for 25 days and observation was done every 5 days. The parameters observed included pH and sensory parameters, namely flavor, color, and salak aroma of the seasoning. Results showed that the critical parameter of rujak seasoning was pH and all quality parameters of rujak seasoning such as pH, flavor, color, and aroma followed first reaction order. By using extrapolation, the shelf-life of rujak seasoning packed in plastic bottle which stored at room temperature 28oC was 167 days (5,6 months).

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