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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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Rancang Bangun Alat Pemanen Buah Salak Sederhana Dewa Bagus Putu Prabha Diptaya; Ida Bagus Putu Gunadnya; Yohanes Setiyo
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.p16

Abstract

Salak (Salacca edulis, Reinw) which its fruits known as snake fruit is a kind of palm plant that grows in the highlands. Tree of snake fruit has stems with many thorns and has long and thorny stalks. Its fruit bunches are closed to the tree, so it is not easy to harvest and to get intact fruit bunches. The purpose of this research was to design a simple and manually operated harvester so that it can speed up the harvesting time of operator. This tool had a sickle-shaped cutting knife and a net to catch underneath. The handle of the cutter and handrail sticks were made of aluminum pipe material. This tool functionally cut one snake fruit bunch and the bunch felt right in the net so that the damage of the fruit bunch could be minimized and shortened the harvesting time. Harvester was tested by 5 operators that harvesting 10 trees each. Collected data was analyzed by using descriptive method and the results showed that the designed harvesting tool worked well with the effectiveness of intact harvested fruit bunch was about 84,0% and with average harvesting time of 8,31 minutes
Pengaruh Pelapisan Gel Lidah Buaya dengan Campuran Asam Askorbat dan Kalium Sorbat terhadap Susut Bobot, pH dan Organoleptik Buah Melon Potong Segar. Ni Wayan Sulasmi; I Made Supartha Utama; I Gusti Ketut Arya Arthawan
Jurnal BETA (Biosistem dan Teknik Pertanian) Vol 9 No 2 (2021): 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.2021.v09.i02.p02

Abstract

Melon fruit which is undergoing a minimal process is easy to damage (perishable) with short shelf life. This study aims to determine the effect of coating aloe vera gel with a mixture of ascorbic acid and potassium sorbate on weight loss, pH, and organoleptic of fresh-cut melons. This study using a completely randomized design (CRD comprised two treatment factors, namely ascorbic acid (0%, 1.5% and 3%) and potassium sorbate (0%, 0.2% and 0.4%)). The experiment was replicated three times with a storage temperature of 5 ± 2◦C. The results showed that ascorbic acid and potassium sorbate significantly affected the weight loss, pH, and organoleptic values of fresh-cut melons. Ascorbic acid and potassium sorbate can inhibit weight loss, maintain organoleptic values , and reduce the pH value of fresh-cut melons so that the activity of fungal and mold growth is inhibited. Aloe vera gel with the addition of 3% ascorbic acid and 0.2% potassium sorbate was the treatment that gave the best organoleptic value during storage. This combination can maintain the value of color and texture up to day 14 and maintain aroma until day 10.
Perancangan Alat Distribusi Ikan Segar Menggunakan Media Pendingin Ice Pack untuk Pedagang Ikan Keliling Nyoman Dhira Prayasa; I Wayan Widia; I Made Anom S. Wijaya
Jurnal BETA (Biosistem dan Teknik Pertanian) Vol 7 No 2 (2019): 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.2019.v07.i02

Abstract

Research on fresh fish distribution tool using ice pack as cooling media for small-scale fresh fish retailer was conducted. The research aimed to design fresh fish distribution system for small- scale fresh fish retailer which can maintain the quality of fresh fish during transportation. This research was carried out through several stages, i.e. identification of needs, functional design, structural design and performance test. Fresh fish distribution tool using ice pack as cooling media for fresh fish small - scale retailer consisted fish storage room, fish storage room cover, ice pack, rack and fish storage stand. Performance test was carried out by observing the room temperature of fish storage room in unloaded condition and fish temperature during 4 hours transportation, determining the coefficient of performance (COP) value and observing the fish quality during trans portation with organoleptic test. The result showed that the room temperature of fish storage room in unloaded condition could reach-12.3 0C after 24minutes operation and maintain temperature with 5 0C upper limit for 14,3 hours, the distribution toolusing ice pack as cooling media could maintain the fish temperature with 5 0C upper limit for 32.03 hours and organoleptic quality values before transportation, after transportation and after 12 hour storage were 8.0, 7.4, and 6.2. Values of COP was 0.67. This result has fulfilled the requirement of fish quality standard according to national standardization institution.
Analisis Persentase Penghematan Air Irigasi dengan Metode Pergiliran (Magilihan) pada Subak di Das Ho I Wayan Aditya Putra Pratama; I Wayan Tika; I Putu Gede Budisanjaya
Jurnal BETA (Biosistem dan Teknik Pertanian) Vol 9 No 1 (2021): 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.2021.v09.i01.p15

Abstract

The reduced of irrigation water availability can be caused by several factors including decrease of river water discharge in the dry season, loss of water in irrigation channels, and evaporation. Thus, austerity measures need to be made such as a system of irrigation rotation and proportion of attributable irrigation water on each subak. This research was conducted to determine the percentage of irrigation water storage present in a subak and the proportion of irrigation water at a time when water availability diminish. The primary data are collected by interviews, observations, and measurement methods, while the secondary data are obtained from BMKG Region III Denpasar. The data then analyzed to count the percentage of water saving during the period of water shortage and the proportion of irrigation water distribution. The results showed that method of irrigation rotation was carried out when the water discharge availability could not meet the requirement of irrigation water. The irrigation rotation method is applied at the middle area of subak and also the upper area of subak from April to May 2020. The method of irrigation rotation is carried out by lowering the amount of irrigation water requirement and providing irrigation water based on to the water discharge availability with the time span for every two days during the period of irrigation water shortage. The area of upstream subak does not have any water savings due to the rotating process is not running, irrigation water savings in the central part of subak are 28,3 percent on average and at the downstream part of subak are 24 percent in average. With the use of water rotation method at the period of irrigation water shortage, water requirement can be fulfilled by water discharge that available. To achieve the proportional irrigation water supply in the period of April until May, irrigation at the upstream part of subak are lowered by 17,46 percent, at the central part of subak are increased by 13,37 percent, and at the downstream part of subak are increased by 9,84 percent.
Analisis Efisiensi Penggunaan Air Irigasi Pada Subak Agung Yeh Sungi I Putu Sukertayasa; I Wayan Tika; I Made Anom Sutrisna Wijaya
Jurnal BETA (Biosistem dan Teknik Pertanian) Vol 5 No 1 (2017): 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.2017.v05.i01.p06

Abstract

Subak Agung Yeh Sungi is an association of all the Subak Gede that use water flow of Tukad Yeh Sungi for irrigation purposes from upstream to downstream. The upstream point of Tukad Yeh Sungi was the village of Apuan, Baturiti District and for the downstream areas are in the region Beraban village, district of Kediri. The area of Subak Agung Yeh Sungi is 3,661 ha, consisting of nine Subak Gede, such as Subak Gede Bunyuh, Cangi, Tinjak Menjangan, Tungkub, Pama Palian, Mundeh, Baru Kedokan, Gadon I, and Gadon II. The purpose of this research was to determine the efficiency of water use irrigation in Subak Agung Yeh Sungi and to designe the distribution of water irrigation in Subak Yeh Agung Sungi to fulfill the concept of proportional. Based on analysis, the efficiency of water Subak Agung Yeh Sungi was 73.80% in the upstream, 84.15% in the middle and 94.21% in the downstream. The average of water use efficiency in each irrigated area was 84.05%.
Kajian Proses Fermentasi Sludge Kotoran Sapi I Putu Gde Suhartana; Yohanes Setiyo; I Wayan Widia
Jurnal BETA (Biosistem dan Teknik Pertanian) Vol 5 No 1 (2017): 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.2017.v05.i01.p07

Abstract

This research aimed to determine the effect of air circulation treatment toward cow manure sludge fermentation process and to determine the quality of sludge that was produced accordance to Indonesia National Standard (SNI) of Compost No. 19-7030-2004. The air circulation treatment was done by using aerator. There were three combination treatments of air circulation: the aerator and drum with coat, aerator and drum without coat, and without aerator and drum without coat was applied as a control. The results of this study indicate that each treatment in the fermentation process had a different temperature fluctuations between 21.56 to 24.41 °C. Temperature is a requirement for mesophilic microbial growth. The acidity condition of the sludge material at the beginning until the end of fermentation was the whole treatment has fulfilled the optimal conditions of fermentation process, with range of pH was from 6.92 to 7.65. The influence of air circulation inside the drum without the coat of rice husk can accelerate the breakdown of proteins into C-organic and N-total, that was C-organic= 24.22%, and N-total = 1.80%. The compost that produced by the fermentation process had the characteristic ratio C / N = 13.46 and had a blackish brown colour rendition. Characteristics of compost according to the quality of compost SNI No. 19-7030-2004, that is pH = 6.80 to 7.49, C-organic = 9.80 to 32%, N-total = 0.40%, the ratio of C / N = 10-20.
Introduksi Pengukuran Getaran Berbasis Android Saat Transportasi Jambu Air Camplong Iswahyudi Iswahyudi; Emmy Darmawati
Jurnal BETA (Biosistem dan Teknik Pertanian) Vol 9 No 1 (2021): 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.2021.v09.i01.p13

Abstract

The camplong water apple (Syzygium aqueum (Burm.f.) Alston) is a superior fruit of Madura which has economic value. It is needed in fresh form but is easily damaged. Product freshness will be maintained if proper packaging and transportation are carried out. The purpose of this research was to carry out actual transportation of guava water and introduced a new way of measuring vibrations based on Android. The scale for measuring vibrations in the field was based on MMI (Modified Mercalli Intensity Scale). The results showed that the measurement of vibration using Android directly illustrated the effect of vibration during transportation on packaging, the vibration generated was 7-8 MMI and the resulting force was 0.8 - 1.2 kgf so that it did not affect the packaging used. The percentage of mechanical damage to guava air camplong after transportation was 20.87% on farmer packaging and 7.70% on RSC packaging.
Analisis Kebutuhan Traktor Berdasarkan Ketersediaan Air Pada Subak di Kabupaten Tabanan I Gede Berliyantha Tikawa; I Wayan Tika; Ida Bagus Putu Gunadnya
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.p17

Abstract

Cultivating land in agricultural activities requires optimal regulation of tractor requirements. The number of tractors that should be needed with the available land area is based on the availability of water in a subak with the aim of obtaining optimal tillage productivity, so a tractor with the availability of irrigation water is needed to irrigate the land to facilitate processing and streamline the land. The purpose of this study is to determine the number of tractors needed based on water availability by comparing the tractors available on subak. This study uses a quantitative analysis approach through a survey method by finding primary data, namely the measurement of discharge available for building and land measurements. The results showed that the tractors needed were based on the availability of water in the subaks of Tabanan Regency in theupstream, middle and downstream areas. For the nine subaks in the upstream area, the required rotary tractor with an average of 6 tractors can cultivate land reaching 87.3 ha or 1 tractor unit can work on an area of 14.6 ha with an average water consumption for 1 unit of tractor which is 27.16 lt/s. For the nine subaks in the central area of the tractor needed, with an average of 5 tractors, an area of 69 ha or 1 unit of tractor can work on an area of 13.8 ha with an average water consumption for 1 tractor unit, 26.84 lt/s. While the nine subaks in the downstream area of the tractor needed with an average of 10 tractors can cultivate land with an area of 114.5 ha or 1 unit of tractor can work on land with an area of 11.8 ha with an average water consumption for 1 tractor unit that is 12.1 lt/s.
Pengaruh Ketebalan Plastik pada Bangunan Pembibitan terhadap Pertumbuhan Bibit Terong Ungu (Solanum melongena L.) Varietas Antaboga F1 I Made Yogi Supardika; Ida Bagus Putu Gunadnya; I Nyoman Sucipta
Jurnal BETA (Biosistem dan Teknik Pertanian) Vol 11 No 1 (2023): 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.2023.v11.i01.p01

Abstract

Eggplant (Solanum melongena L.) is a tropical plant in Asia (India and Burma). Seedlings of this plant are often carried out in the open area so that the growth of seedlings is not quite good. Nursery buildings are wrapped with plastic to avoid rain, reduce the excess light, and reduce pests and diseases that attack vegetable crops. The plastic thickness used as a shading gives greatly affects the intensity of light received by the eggplant. This research was conducted by covering the nursery building using plastic with a thickness of 0.04 mm, 0.08 mm, and 0.12 mm. The treatment gives a significant effect (P <0.05) on changes in conditions of growth and seedling growth, except for the wet weight of the seedlings. The wrapping treatment of the nursery using plastic with 0.08 mm thickness provided the best conditions and produced eggplant seeds with the best growth.
Pendugaan Umur Simpan Benih Padi (Oryza sativa L) Menggunakan Metode ASLT (Accelerated Shelf Life Testing)dengan Pendekatan Model Kadar Air Kritis IPutu Mas Pradnyana Wibawa; Ida Bagus Putu Gunadnya; I Made Anom Sutrisna Wijaya
Jurnal BETA (Biosistem dan Teknik Pertanian) Vol 7 No 2 (2019): 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.2019.v07.i12

Abstract

The purpose of this study was to prediction the shelf life of certified rice seeds using the ASLT (Accelerated Shelf Life Testing) method based on the critical moisture content approach. The varieties of rice seeds used in this research were Ciherang and Inpari 30 varieties which packed with polypropylene (PP) plastic packaging. The rice seeds packages were stored at environmental condition (temperature of 29 oC and RH of 75%). Observation on seeds germination was done daily until the seeds have a germination percentage below 80%. When the seeds under this condition, moisture content of the seeds was measured and refer as critical moisture content. It was found that the packaging permeability (k/x) of PP plastic was 0.013 gH2O/m2.day.mmHg. Observation on rice seed of Ciherang variety revealed that its values of initial moisture content (Ma) was 0.133 %, its critical moisture content (Mc) was 0.291 %, its total solid (Ws) was 8.8 kg, and pressure difference (ΔP) was 1,15 mmHg. While, for Invary 30 variety the values of its shelf life parameters were as follows: Ma 0.144 %, Mc 0.293 %, Ws 8.7 kg, and ΔP 0.9 mmHg. The prediction of shelf life the two certified rice seeds which were packed in PP plastic and stored at 29oC and RH of 75% were 156 days (5.03 months) for Ciherang variety and 254 days (8.19 months). ) for Inpari 30 variety.

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