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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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Pengaruh Pelapisan Gel Aloe Vera (Aloe barbadensis Miller) dengan Campuran Karagenan terhadap Karakteristik Buah Pepaya (Carica papaya L) Potong Segar selama Penyimpanan Reka Evelina Gultom; Ida Ayu Rina Pratiwi Pudja; Ida Ayu Gede Bintang Madrini
Jurnal BETA (Biosistem dan Teknik Pertanian) Vol 13 No 1 (2025): 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.2025.v13.i01.p10

Abstract

Fresh-cut papaya fruit (Carica papaya L) is one of the minimally processed products that has gonethrough the process of cutting and peeling so that it tends to be easily damaged and physiologicalchanges due to peeling and cutting compared to whole fruits. This study aims to determine the effect ofaloe vera gel with carrageenan mixture on the shelf life of freshly cut papaya fruits during storage. Thisstudy used a Simple Complete Random Design with a level of 6 treatments, namely aloe vera gel withconcentrations of 0%, 10, 15%, 20%, and 30% mixed with 2% carrageenan. The experiment wasrepeated three times and the storage temperature (10±1°C) was stored for 12 days, the parametersobserved were weight loss, hardness, moisture content, vitamin C content, total dissolved solids, colorand cooling rate. The results of the study showed that the interaction of aloe vera gel had a real effecton the change in the quality of freshly cut papaya. Aloe vera gel coating with carrageenan mixture asan edible coating material has a real effect compared to freshly cut papaya fruit without treatment forweight loss, fruit hardness, total titrated acid, total dissolved solids, vitamin C content, moisture content,color, and cooling rate, The best concentration of aloe vera gel coating with carrageenan mixture thatcan maintain the freshness condition of freshly cut papaya fruit is 2% carrageenan with 30% aloe veragel extract.
Pengujian Kapasitas Kerja Mesin Pencacah Sampah Organik Hasil pada Berbagai RPM Erni Yanti Friska Zagoto; I Nyoman Sucipta; Ida Ayu Gede Bintang Madrini
Jurnal BETA (Biosistem dan Teknik Pertanian) Vol 13 No 1 (2025): 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.2025.v13.i01.p11

Abstract

The Reduce, Reuse, Recycle Waste Management Site (TPS 3R) is an important facility in supportingsustainable waste management. One of them is at TPS 3R PUNGGUL Hijau, Ambiansemal District, BadungRegency, Bali Province. Previously, the waste shredder at TPS 3R Punggul Hijau Ambiansemal had aproblem where the engine capacity was not known at various engine rotation speeds and there was astagnation. For that, it is necessary to obtain a different RPM treatment capacity, for the stagnation problem,treat a different hopper angle. The purpose is to compare the engine capacity at RPM 800, 1000, 1600, 2000,and 2400 RPM with a hopper tilt angle of 40 degrees, 60 degrees, and to find out the size of the shreddedresults. To solve the problem, testing is needed using measuring instruments, namely tachometers,stopwatches, and scales. Treatment of 40 degree and 60-degree angles where RPM 800,1000,1600,2000,2400is repeated 3 times. The shredding process for each RPM has a duration of 1 hour, the material is put into theshredder machine differently at each speed. The 40-degree angle of the waste is put into the hopper in stageswith an amount of 5 kg, until the organic waste in the hopper is half gone. After the hopper is changed to 60degrees, the amount of waste is put in 7 kg in stages. The results of the good 40-degree angle test RPM 1600produces a shredding of 294.13 kg / hour, with a standard deviation of 0.30. After the angle is changed to 60degrees by increasing the capacity which causes the hopper to grow larger and is tried at different RPMs, theresults are also different. Then the highest test at RPM 2000, produces a shredding of 400, 96 kg / hour, witha standard deviation of 0.13. The smallest size of the chopped result for 40 degrees is 7 cm at 2400 RPM.And 60 degrees the smallest size is 2400 RPM, which is 3 cm.
Beban Kerja dan Kelelahan Pekerja Mengolah Kopi di UD. Cipta Lestari Pupuan Bali Benedikta Apriela Surya; I Nyoman Sucipta; Ni Luh Yulianti
Jurnal BETA (Biosistem dan Teknik Pertanian) Vol 13 No 1 (2025): 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.2025.v13.i01.p12

Abstract

The coffee business in Pupuan has great potential, farmers face several challenges, namely workloadand worker fatigue which are often the main causes of work accidents. Coffee processing workers atUD. Cipta Lestari stated that they experienced back pain, arm pain, and joint and muscle problems.Based on these problems, this study aims to determine the level of workload and fatigue for workersand identify strategies that can reduce worker fatigue in processing coffee at UD Cipta Lestari PupuanBali. The research method used is a quantitative method with a survey. The population in this studywere 11 workers and the sample was the 10 people (Purposive Sampling). Assessment of physical andmental fatigue using the Fatigue Assessment Scale (FAS) questionnaire method. Mental workloadassessment using the National Aeronautics and Space Administration Task Load Index (NASA-TLX)method and using physical workload measurements with Cardiovascular Load (CVL) calculations. Theresults of this study indicate that the score on the calculation of physical workload with an average CVLshows a figure of 9.95% and for the mental workload score with the NASA-TLX questionnaire reaches67.5 with a high mental workload category. The average FAS questionnaire for worker physical fatigueis at 2 based on questions 1-5 with the interpretation of "sometimes". The average mental fatigue is at 2from questions 6-10 which also shows the interpretation of "sometimes". Thus, from the results of thisstudy it is concluded that workers at UD Cipta Lestari Pupuan Bali have a high mental workload andworkers also feel tired but not continuously.
Respon Kentang Bibit akibat Dampak Deformasi dengan Beberapa Tingkat Beban Mekanis Jessica Heidy Tiku Semaraputri; Ida Ayu Rina Pratiwi Pudja; I Wayan Tika
Jurnal BETA (Biosistem dan Teknik Pertanian) Vol 13 No 1 (2025): 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.2025.v13.i01.p13

Abstract

Seed potatoes are a potential potato plant that really determines the quality of the harvest, therefore one ofthe efforts that can be implemented is to avoid deformation. Through this research, we will look for theinfluence of deformation, which is a change in the shape of an object due to receiving force or whenworking. This research uses a Tension and Compression Testing Machine which is a Universal TestingMachine, specially configured to determine material strength and deformation behavior under compressiveloads. Seed potatoes will be used as test material. This research aims to determine the effect of variationsin the load given to potatoes, determine the level of growth capacity of seed potatoes during the storageperiod, and determine the level of growth capacity of seed potatoes after planting. This study implementeda one-factor completely randomized design (CRD). The load variations tested included 0 kg, 10 kg, 20 kg,30 kg, 40 kg, and 50 kg, with each load repeated three times. Variables measured included the number ofshoots, damage to potato seeds, plant height, number of leaves, leaf area, and tuber weight. The results ofpotato growth by applying loads of 0 kg, 10 kg, 20 kg, 30 kg, 40 kg, and 50 kg had a significant impact onplant height, number of leaves, and leaf area, but did not have a significant impact on the number of potatoshoots. The research results showed that P1 was able to produce the best productivity with an average valueof plant height of 8,06 cm, number of leaves of 28,3 cm, and leaf area of 8 cm2.
Dinamika Bahan Organik dan Total Nitrogen Tanah pada Pengelolaan Jerami Padi I Gusti Ayu Evi Sukma Elvayani; Ni Nyoman Sulastri; Yohanes Setiyo
Jurnal BETA (Biosistem dan Teknik Pertanian) Vol 13 No 1 (2025): 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.2025.v13.i01.p14

Abstract

Rice straw, a major agricultural residue, can be approximately 25 tons/ha post-harvest. Typically managedby farmers through burial or burning, this study aimed to analyze the dynamics of soil organic matter andtotal nitrogen during rice straw management and assess nitrogen mineralization outcomes post-treatment.Employing a Nested Design, the study evaluated three straw management treatments: burial with EM4 (SI),burial without EM4 (SI0), and burning (BR), with sampling locations nested within treatment factors.Laboratory analyses using Walkey and Black's method measured Soil Organic Matter (SOM), whileKjeldahl's method assessed Total Kjeldahl Nitrogen (TKN). Pre and post-treatment SOM content rangedfrom 3.94% to 5.11%, showing no significant impact from straw management (p>0.05). TKN levels variedbetween 0.17% and 0.39%, with burial treatments significantly differing (p<0.05), unlike burning (p>0.05).Nested Design testing revealed significant treatment effects, prompting LSD post-hoc tests. Overall, soilSOM increased after straw management, notably impacted by burning. Post-treatment averages for SOMand TKN were: burial with EM4 (5.11% and 0.34%), burial without EM4 (5.15% and 0.39%), and burning(5.11% and 0.33%).
Efisiensi Penyaluran Air Irigasi pada Saluran Primer Daerah Irigasi Tungkub Debora Lydia Frida Tangkuman; I Wayan Tika; I Nyoman Sucipta; Ni Nyoman Sulastri; Mentari Kinasih
Jurnal BETA (Biosistem dan Teknik Pertanian) Vol 13 No 1 (2025): 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.2025.v13.i01.p15

Abstract

Distribution efficiency is the balance value between the water discharge upstream and the water discharge downstream in minimizing the process of water loss. Generally, the water discharge distributed upstream will be greater than the water discharge downstream, due to water loss during distribution. However, there are cases where the amount of water discharge that reaches the downstream is actually greater than the amount of water distributed upstream, as happened in the primary channel of the Tungkub Irrigation Area. One of the causes of this difference in the amount of water discharge is due to the suppression during the distribution process. There are 10 to 15 suppression points available along the primary channel of Irrigation Tungkub Areas. This study aims to determine the efficiency of water distribution by calculating the amount of supplementary discharge and the efficiency of water distribution without calculating the amount of supplementary discharge. This research applies a quantitative analysis approach by collecting primary data, in the form of upstream water discharge data, downstream water discharge data, and supplementary discharge data along the primary channel during July to November 2023. From the calculation results, the result of the efficiency of water distribution with supplementation in the primary channel of DI Tungkub is 73,32% and the result of the efficiency of water distribution without calculating the amount of supplementation is 73,06%. Through this research, it can be concluded that supplementation affects the value of water distribution efficiency in the primary channel of DI Tungkub.
Estimasi Evapotranspirasi Potensial Menggunakan Algoritma Random Forest di Daerah Irigasi Tungkub, Bali Luh Made Putri Apriliani; Ni Nyoman Sulastri; I Wayan Widia; I Putu Gede Budisanjaya
Jurnal BETA (Biosistem dan Teknik Pertanian) Vol 13 No 1 (2025): 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.2025.v13.i01.p16

Abstract

The estimation of Potential Evapotranspiration (ETp) is crucial for water distribution planning andcropping patterns. Generally, ETp calculation is obtained from empirical models such as the PenmanMonteith (PM) model recommended by the Food and Agriculture Organization (FAO). However,implementing this model requires numerous weather variables and adequate weather data availability. Thisresearch aims to develop an ETp estimation model using the Random Forest (RF) algorithm The weathervariables used in this research as inputs for ETp modeling are solar radiation (Rs); air temperature (T); airhumidity (RH); and a combination of Rs and T. Weather variable data were obtained from an automaticweather station (AWS) in the Tungkub Irrigation Area, Bali. The research results indicate that the weathervariable Rs is the best estimation model input, while the weather variable RH is the weakest. In modelcalibration, three evaluation metrics were used to assess model performance, R2, MSE, and RMSE.Meanwhile, for model validation, three techniques were employed, prediction error plot, residuals plot,and k-fold cross-validation. The research results indicate that the average ETp estimation value with thescenario of input Rs using the RF algorithm in the Tungkub Irrigation Area is 0,14 mm/hour (R2 = 1,00,MSE = 0,00, RMSE = 0,01). Meanwhile, the average ETp PM value is 0,15 mm/hour. The scenario ofinput Rs using the RF algorithm shows estimation values close to the PM ETp value.
Kombinasi Perekat dan Bentuk Geometri yang digunakan terhadap Karakteristik Biobriket Batang Bambu Tabah (Gigantochloa Nigrociliata Buse-Kurz) Fayi Maysaroh; Pande Ketut Diah Kencana; I Putu Gede Budisanjaya
Jurnal BETA (Biosistem dan Teknik Pertanian) Vol 13 No 1 (2025): 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.2025.v13.i01.p17

Abstract

This study aims to determine the characteristics of the combination of adhesives and geometric shapes usedon the quality of stoic bamboo briquettes produced and determine which treatment gives the best results onthe characteristics of the briquettes produced. This study used a Factorial Randomized Group Design(RAK) using 2 factors and 3 repetitions. The first factor (A) is a combination of adhesive materialsconsisting of 3 levels of sago flour and tapioca flour (A1), sago flour and sticky rice flour (A2), and tapiocaflour and sticky rice flour (A3). The second factor (B) is a geometric shape consisting of 3 levels of cylinder(B1), cube (B2), and beam (B3). All treatments were replicated 3 times so that 27 observation data wereobtained. The data obtained were analyzed using SPSS and if there is a significant effect, then it will becontinued with the BNT further test on the average treatment. The results showed that the interactionbetween the treatment types of adhesive combinations and geometric shapes had a significant effect on thequality parameters of the briquettes produced. The treatment of briquettes made with a combination of sagostarch and sticky rice with a cylindrical geometric shape (A2B1) is the treatment that produces the bestquality briquettes with a moisture content value of (6.80% bb), ash content of (12.87%,), burning rate of(0.08 g/min) and volatile metter of (57.50%).
Pengaruh Konsentrasi Disinfektan Menggunakan Flim Plastik Terperforasi terhadap Susut Bobot dan Mutu Cabai Rawit selama Penyimpanan Firnando Desnanta Tarigan; I Made Supartha Utama; I Wayan Tika
Jurnal BETA (Biosistem dan Teknik Pertanian) Vol 13 No 1 (2025): 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.2025.v13.i01.p18

Abstract

The aim of this research was to evaluate the effect of the concentration of disinfectant solution and the typeof plastic packaging with holes on the quality characteristics of cayenne pepper during the storage period ata temperature of 10 ± 1 °C. In this research, a factorial experimental design involving two factors was used.The first factor is the concentration level of the chlorine solution used to soak the cayenne pepper, which hasthree levels, namely 0 ppm, 75 ppm and 150 ppm. The second factor is the number of holes in the plasticpackaging, which is divided into four levels, namely no holes, 2 holes, 4 holes and 6 holes. The plasticpackaging used in this experiment was polypropylene with dimensions of 20 cm x 30 cm and a thickness ofaround 0.06 mm. Each treatment was carried out three times, and each experimental unit used a plasticcontainer with a capacity of 250 grams. From the research results, it appears that soaking cayenne peppers in150 ppm disinfectant solution and using plastic packaging with 6 holes has a significant impact on variousquality characteristics of cayenne peppers, such as the level of damage, weight loss, water content, andvitamin C content, when compared with other treatment.
Analisis Saluran Pemasaran Bawang Prei (Allium ampeloprasum L.) yang Dibudidayakan di Desa Candikuning, Baturiti, Tabanan Sonia Saqinah; I Gusti Ngurah Apriadi Aviantara; I Wayan Tika
Jurnal BETA (Biosistem dan Teknik Pertanian) Vol 13 No 1 (2025): 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.2025.v13.i01.p19

Abstract

Leek (Allium ampeloprasum L.) is a kind of horticultural plant cultivated by farmers in CandikuningVillage, Baturiti, Tabanan. Based on BPS data from Bali Province in 2021, production reached 1,055tons, but there is no clear information regarding the marketing channels. This research aims to determinemarketing channels, distribution of marketing margins and profit margins, level of marketing efficiency,and the proportion of farmer involvement in leek marketing activities. The sample consisted of 30farmers, 7 collectors, 5 larges, and 5 small traders. They were specifically chosen through AccidentalSampling and Snowball Sampling procedures. The data obtained consists of qualitative and quantitativeinformation. Research findings show that there are three different trends in leek marketing channels,specifically channel 1 (farmers – collectors – wholesalers – consumers), channel II (farmers – collectors– small traders – consumers), and channel III (farmers – collectors – wholesalers – traders) small –consumer). Channel III has the highest total margin of IDR 12,467/kg, while Channel 1 has the lowest(IDR 8,467/kg). Large traders get the highest profit margin of IDR 3,546/kg, while small traders inchannel III get the lowest profit margin of IDR 1,734/kg. Channel 1 has the largest farmer's share, 67%,while channel III has the lowest, 58%. All of the channels remain in the efficient category. Based onmarketing costs, marketing margins, and farmer's share obtained, channel 1 is the most efficient

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