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Contact Name
Gede Arda
Contact Email
ardagede@gmail.com
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Journal Mail Official
jurnal.beta.tep@gmail.com
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Location
Kab. badung,
Bali
INDONESIA
beta (Biosistem dan Teknik Pertanian)
Published by Universitas Udayana
ISSN : 25023012     EISSN : 25023012     DOI : -
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 4 Documents
Search results for , issue "Vol 3 No 1 (2015): Maret" : 4 Documents clear
Pengembangan Algoritma Image Processing untuk Menduga Hasil Panen Padi Putra, Made Arya Bhaskara; S. Wijaya, I Made Anom; Setiyo, Yohanes -
Jurnal BETA (Biosistem dan Teknik Pertanian) Vol 3 No 1 (2015): Maret
Publisher : Program Studi Teknik Pertanian, Fakultas Teknologi Pertanian, Universitas Udayana, Badung, Bali, Indonesia

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Abstract

The aims of this research were to develop image processing algorithm that can be used for rice yield estimation. This research consist of: 1) image acquisition, 2) image analysis with Adobe Photoshop Cs 4 and MATLAB R2009B, and 3) make the algorithm that suitable for rice yield estimation. This research was testing three method of image processing, i.e. manual pre-processing, thresholding method, and shape of Structuring Elements (SE). Forming algorithm was done by analyzing image yield and be compare with real image. More like image yield with real image, then this method was suitable for doing rice image analysis. The result of analysis showed that process of rice image analysis have to be started with manual pre-processing, using custom thresholding method, and morphology with SE shape disk. The result image of the algorithm showed the most appropriate grain image with real image, and there’s no more image that identified as a grain. Based on number of pixel, the image yield of this method is 117.407 pixel. In conclusion, the algorithm for estimation of rice yield, consist of: image acquisition, manual pre-processing, gray scaling, thresholding custom, morphology with SE shape disk, image resize, and calculation of the number of pixel grain.
Pengaruh Pelapisan Emulsi Minyak Wijen dan Minyak Sereh Terhadap Mutu dan Masa Simpan Buah Tomat (Lycopersicon esculentum Mill) Prastya, Oki Adhi; Utama, I Made Supartha; Yulianti, Ni Luh
Jurnal BETA (Biosistem dan Teknik Pertanian) Vol 3 No 1 (2015): Maret
Publisher : Program Studi Teknik Pertanian, Fakultas Teknologi Pertanian, Universitas Udayana, Badung, Bali, Indonesia

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Abstract

The purpose of this study was to determine the effect of different concentrations of sesame and lemongrass oils emulsion in water as coating materials on quality of tomato fruits during storage at room temperature. The concentration of sesame oil emulsionwas varied 0%, 0.5%, and 1% in combination of lemon grass oil of 0%, 0.5%, 1%, and 1.5%. Additional materials used to make the emulsion were 1% of polysorbate 80, 0.5% oleic acid, and ethanol3%. Control fruits without treatments were also prepared for comparison. The experiment was performed using a Completely Randomized Design (CRD) with three replications. The results showed that treatment of a mixture of sesame oil and lemongrass oil significantly affected the quality and storagelife of the tomato fruits. The combined concentration of 0.5% sesame oil and 0.5% of lemongrass oil gave the best result which was able to reduce the weight loss, spoilage damages, change of pH and total soluble solidof the fruit juice, and texture (hardness)
Penentuan Umur Simpan Bumbu Rujak dalam Kemasan Botol Plastik Menggunakan Metode Arrhenius Trisiana Dewi, Ida Ayu Agung Putri; Gunadnya, Ida Bagus Putu; Pudja, Ida Ayu Rina Pratiwi
Jurnal BETA (Biosistem dan Teknik Pertanian) Vol 3 No 1 (2015): Maret
Publisher : Program Studi Teknik Pertanian, Fakultas Teknologi Pertanian, Universitas Udayana, Badung, Bali, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (371.222 KB)

Abstract

The objectives of this research were: to determine critical parameters and to estimate it’s shelflife 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)
Kajian Tentang Perlakuan Jarak Antar Elektroda Tembaga Terhadap Kinerja Sensor Konduktivitas Listrik Tanah Tipe Kapasitif Andri, Gede; Wijaya, I Made Anom S.; Budisanjaya, I Putu Gede
Jurnal BETA (Biosistem dan Teknik Pertanian) Vol 3 No 1 (2015): Maret
Publisher : Program Studi Teknik Pertanian, Fakultas Teknologi Pertanian, Universitas Udayana, Badung, Bali, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (99.168 KB)

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.

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