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Jurnal Teknologi Pertanian
Published by Universitas Brawijaya
ISSN : 14115131     EISSN : 25282794     DOI : -
Core Subject : Science, Agriculture,
Agriculture, Biological Sciences & Forestry Computer Science & IT
Jurnal Teknologi Pertanian diterbitkan oleh Fakultas Teknologi Pertanian Universitas Brawijaya untuk penyebarluasan hasil penelitian yang dilakukan oleh para peneliti dari dalam dan luar Fakultas Teknologi Pertanian Universitas Brawijaya. Jurnal Teknologi Pertanian terbit tiga kali dalam setahun, memuat tulisan hasil penelitian yang termasuk dalam lingkup disiplin ilmu pengetahuan yang terkait dengan Ilmu-ilmu Teknologi Pertanian guna menunjang pengembangan ilmu pengetahuan dan teknologi serta pembangunan nasional.
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Articles 578 Documents
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Effect on Sedimentation Behavior and Performance of Irrigation Channel at Waru-Turi Kanan Kediri Wirosoedarmo, Ruslan; Haji, Alexander Tunggul Sutan; Kristanti, Estin D.
Jurnal Teknologi Pertanian Vol 12, No 1 (2011)
Publisher : Fakultas Teknologi Pertanian Universitas Brawijaya

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Abstract

The objectives of this research were to determine the rate of sedimentation in the primary, secondary, and tertiary channel; to determine channel dimension changes caused by sediment, and the effect of sedimentation to determine the cross section channel’s specific energy. This research consisted of two stages. First stage was data collection i.e. sediment sampling, measurement of flow velocity, and measurement of channel dimensions. Second stage was laboratory analysis. Each stage was replicated three times in 2-week intervals. Sediment sampling was done directly on the primary, secondary, and tertiary irrigation channel networks. Sedimentation rate in primary irrigation channel at dry season was 54.99x10-6 tons/day, while at the secondary was 0.88x10-6 tons/day, and at the tertiary was 0.65x10-6 tons/day. Primary channel with channel cross sectional area of 56.734 m2 reduced into 46.541 m2 due to 10.913 m2 area sedimentation. Secondary channel with channel cross sectional area of 3.086 m2 reduced into 2.732 m2 due to 0.354 m2 area of sedimentation. At tertiary channels with channel cross-sectional area of 1.398 m2 reduced into 1.341 m2 due to 0.057 m2 area sedimentation. The rate of sedimentation in the irrigation channel caused changes in the performance of the channel, namely the primary channel; the channel only worked for 76.93%, the secondary channel was 94.2%, and 91.47% in tertiary canals. Keywords: sedimentation, irrigation channel, subsection
Non Thermal Preservation Process of Apple Cider Based on Oscillating Magneting Field (OMF) Technology Sari, Elok Kurnia Novita; Susilo, Bambang; Sumarlan, Sumardi Hadi
Jurnal Teknologi Pertanian Vol 13, No 2 (2012)
Publisher : Fakultas Teknologi Pertanian Universitas Brawijaya

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Abstract

Magnetic technology is one method of non thermal preservation for preserving food uses the magnetic field. Food preservation based on oscillating magnetic field technology, worked by using magnetic fields generated from currents to coils. The magnetic field is generated, then used to kill microorganism cells that are pathogen in food. The main purpose of this research is to design and study the characteristics and working principles of pasteurization machine based on oscillating magneting field, that tested to apple cider. Research methods used are experimental method by three treatment factors, namely the input voltage magnitude (V), the long treatment (t) and the input frecuency (f). The results of this study showed that the allocation of the magnetic field can safe the quality and keep the shelf life of aplle cider longer. At 130 V, frecuency at 50 Hz for 25 minutes treatment time, the total of microorganisms decreased up to 99.96%, and the last microorganisms are 10 col/g. Moreover, the degree of acidity (pH) and total suspended solid of apple cider more stable and has shelf life longer than the others. Food preservation technologies by providing a magnetic field does not cause high heat, so no loss of nutrients and damage to the material. So that the preservation process with this technology can be applied to food preservation process. Keywords: non thermal preservation, pasteurization, magnetic technology, pathogen microbial
The Making of Aloe vera Powder (Aloe vera L.) with Foam-mat Drying Method Ramadhia, Muflihah; Kumalaningsih, Sri; Santoso, Imam
Jurnal Teknologi Pertanian Vol 13, No 2 (2012)
Publisher : Fakultas Teknologi Pertanian Universitas Brawijaya

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Abstract

Aloe vera gel contains nutrients that are complex but easily damaged so it is deemed necessary for further processing into high value products such as powder. The study was conducted to determine the combination of the concentration of the filler (maltodextrin) and foaming agent (tween 80) is right in making a quality aloe vera powder using foam-mat drying. The design of the study is a randomized block design of two factors, namely the concentration of maltodextrin (5%, 10%, 15 %) and the concentration of tween 80 (0.1%, 0.2%, 0.3%). The best Aloe vera powder is obtained at a concentration of 15% maltodextrin and 0.3% tween 80, which composition of the water content 10.28%, the activity of free radicals capture 36.63%, 8.33% yield, vitamin C 118.13 mg/g, protein 4.70%, minerals 1.86%, fat 0.30%, 0.27% fiber, light beige-colored and has air bubbles on the surface micrograph of powder. The results of this study is expected to be a reference in the development of Aloe vera powder manufacturing industry. Keywords: aloe vera powder, filler (maltodextrin), foaming agent (tween 80), foam-mat drying
The Strategy of Organic Fertilizer Production System Development on Organic Fertilizer Processing Unit (UPPO) in Bangunsari Village, Ciamis Sardjono, Nurihyatun; Susilo, Bambang; Wignyanto, Wignyanto
Jurnal Teknologi Pertanian Vol 13, No 2 (2012)
Publisher : Fakultas Teknologi Pertanian Universitas Brawijaya

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Abstract

The purpose of this study to determine strategies for developing appropriate production system on UPPO in the Village Bangunsari. This study uses AHP and the data was processed using Expert Choice software. Based on survey results revealed that the main factors to consider in the development of UPPO is well within the knowledge of farmers using fertilizers and in processing. The actor who plays a role in increasing farmers’ knowledge is government and UPPO managers. Priority target system development is the increase in farmers’ income. To support the achievement of this target is selected developing UPPO policy. Based on the identification of factors, actors, objectives and policies of the development strategy of organic fertilizer production systems in UPPO at the village Bangunsari is local government managers need to conduct an intensive outreach program to increase the knowledge of farmers on the use of waste straw so that the development of organic fertilizer production systems at UPPO can be done gradually and eventually the farmer’s income can also be increased. Keywords: potency, waste, rice straw, farmer
Characteristics of Soaked and Dried Water Yam Flour as Material for Producing Edible Paper Indrastuti, Erning; harijono, Harijono; Susilo, Bambang
Jurnal Teknologi Pertanian Vol 13, No 3 (2012)
Publisher : Fakultas Teknologi Pertanian Universitas Brawijaya

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Abstract

This  research aimed to study the physicochemical characteristics of  water yam flour are due to soaking and drying treatments, as material for edible paper, as a substitute for rice flour in the producing of rice paper (fresh spring roll wrapper).  This study used Randomized  Block Design with two factors: soaking time of 0, 24, and 48 hours; and drying temperature at 40, 50, and 60 °C. The result showed increasing soaking decreased  mucilages, meanwhile increasing soaking time increased swelling power. Moisture content did not differ significantly (p>0.05).  Soaking 24 hours produced the highest final viscosity at all drying temperature. Soaking 24-hour and drying temperature 50 °C treatment could be suggested for producing yam flour and was recommended as  raw material for edible paper processing.Keywords: water yam flour, viscocity, swelling power, physichochemical properties, edible paper
Study of Preparation Sorghum Flour and Application for Analogues Rice Production Budijanto, Slamet; yuliyanti, Yuliyanti
Jurnal Teknologi Pertanian Vol 13, No 3 (2012)
Publisher : Fakultas Teknologi Pertanian Universitas Brawijaya

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Abstract

Sorghum (Sorghum bicolor L. Moench) is one of cerealia that high carbohydrate and protein sources. This research is aimed to obtain effect of conditioning to yield sorghum flour and sorghum varieties toward characterization of analogues rice based on organoleptic analysis. Analogues rice was produced by twin screw extruder. Conditioning process is done by added water such as 0, 10, 15, 20, and 25% from sorghum’s mass. Sorghum varieties that are used in this study are Pahat, B100, Numbu, and Genjah. All product was selected by sensory analysis. The highest yield of sorgum flour was obtained from additional of 25% water before milling process. The result of sensory analysis showed that sorghum varieties was significant effect to rice analogues. Rice analogues from Pahat and Numbu sorghum has higher consumer acceptance. Carbohydrate content of analogues rice F1 and F3 are 91.58% and 92.40%. Total dietary fiber of analogues rice F1 and F3 are 4.02% and 3.65%.Keywords: diversification, healthy rice, carbohydrate sources
Low Tannins and HCN of Lindur Fruit Flour Products as an Alternative Food sulistyawati, Sulistyawati; Wignyanto, Wignyanto; Kumalaningsih, Sri
Jurnal Teknologi Pertanian Vol 13, No 3 (2012)
Publisher : Fakultas Teknologi Pertanian Universitas Brawijaya

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Abstract

Lindur fruit (Bruguiera gymnorrhiza Lamk.) has opportunities to be explored as an alternative food because it contains high carbohydrate that can be processed into flour. Lindur fruits contain antinutrient, namely tannin and Hydrogen Cyanide (HCN) that of which concentration should be reduced first before processing to be safe for consumption. This study aims to determine the concentration of rice husk ash and the right soaking time to decrease the level of tannins and HCN of  the lindur fruit flour  into safe limits level for consumption. This research used Randomized Group Design with two factors, namely rice husk ash concentration (20, 25, 30% w/w) and immersion time (12, 24, 36 hours). Analysis of Variance was used as Statistical data analysis of the research. Duncan Multiple Range Test on the level of sygnificancy 1% was used to test the different among treatment. The result shown that soaking lindur fruit at the concentration 30% w/w of husk ash solution in 24 hours can be reduced anti-nutrient substance to the safe limit for consumption, with the remaining tannin levels at 0.206% and 3.435 ppm of HCN. Lindur fruit drying to be processed into flour used temperature of 70 0C can reduced moisture content of 8.468% in 10 hours and produced the flour which meet the requirements as a brownish color food; 96.271% absorption of water; yield at 18.940%; 82.092% of carbohydrate; 5.597% of protein; 1.797% of fat; 18.476% of amylose; 8.701% of crude fiber; 1.609% of ash;   0.192% of tannins and 3.375 ppm of HCN. Keywords: mangrove, rice husk ash, soaking, drying temperatur
Sucrose Content Loss in the Harvest-Loading-Transport System at PG Sindang Laut and PG Tersana Baru, Cirebon Bantacut, Tajuddin; sukardi, Sukardi; Supatma, Irfan Ardiansyah
Jurnal Teknologi Pertanian Vol 13, No 3 (2012)
Publisher : Fakultas Teknologi Pertanian Universitas Brawijaya

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Abstract

The loss of sucrose in the cane sugar production could reach 35%. Harvesting, loading and transporting the sugarcane contribute significantly to the total lost prior to milling, ranging from 5–25%. The aims of this research were to identify factors that influence the harvest-loading-transport system, to analyze the pattern of sucrose content loss in sugar cane before milling, and to recommend means of improving the harvest-loading-transport system according to the exixting condition of sugar factories. The implementation of the harvest-loading-transport system can be influenced by many factors, among them are the factors determining the chopping schedule (T-score) which consist of planting time, difference between below purity level and upper purity level, average sucrose content, difference between upper sucrose content and below sucrose content, maturity factor, increase coefficient, durability coefficient, shoot auger pest, plant condition, and distance. The felling system is determined by the plantation layout, infrastructure (road, bridge conditions), topography, climate and weather, and equipment for fire tackling.Keywords: cane sugar production, sucrose content, sucrose losses, harvest-loading-transport
Modification of Dry System Cotton Delinter to Increase Machine Capacity Fatah, Gatot Suharto Abdul; soebandi, Soebandi; Lutfi, Musthofa; Widodo, Puji
Jurnal Teknologi Pertanian Vol 13, No 3 (2012)
Publisher : Fakultas Teknologi Pertanian Universitas Brawijaya

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Abstract

Dry system delinter machine designed by Indonesian Agency for Agriculture Research and Development, Serpong, Indonesia in cooperation with Indonesian Tobacco and Fiber Crops Research Institute, Malang, Indonesia has managed to assemble a seed processing equipment delinter dry system using nitric acid. The advantages of this tool are : the process is shorter (only 2-3 hours), no sunlight compared to wet systems (sulfuric acid) which will take approximately 2-3 days and does not pollute soil and water environments. But the tool still has a weakness, where the machine is not used anymore because delinter dimensions of the machine is too big. In addition there are the seeds of cotton delinted crust layer due to heating at the contact of nitric acid vapor to cotton seeds  rudimentary. It is therefore necessary modifications to the engine of delinter the dry system. The results have been obtained by modification of the engine delinter dry system that is able to clean the rest of cotton with good results. It has also  improved capacity of 120 k /h to 150 kg/hour. Nitric acid vapor has been wetting the rest can be directed to the distillation, so as not to endanger the operator. Nitric acid requirements prior to 1 L to 120 kg of seed cotton, can be saved to 0.9 L for 150 kg of seed cotton. Engine capacity can be increased of 25% and the nitric acid need to save as much as 35%.Keywords: delinter dry systems, cotton, nitric acid vapor
Optimization of Process Variables on Ethanol Production from Sorghum Grain Amin, M. Nur Ghoyatul; Hidayati, Darimiyya; Indarto, Cahyo
Jurnal Teknologi Pertanian Vol 13, No 3 (2012)
Publisher : Fakultas Teknologi Pertanian Universitas Brawijaya

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Abstract

This research was aimed for obtaining high level of yield in ethanol production from sorghum grain (Sorghum bicolor L.). Response surface methodology (RSM) is selected to optimize the process variables in ethanol production by employing Box Behnken design. The factors consist of Ammonium sulfate concentrations, shaking rates, and fermentation times, which are designed at 0%, 0.2%, 0.4%, 0 rpm, 50 rpm 100 rpm, 56 hours, 64 hours, 72 hours respectively. Second order polynomial model was developed by Design expert 07 to estimate the ethanol yield by different level for each factor and the regression square was 90.09%. Optimal solution in this work was determined by contour plot, with the highest yield was 39.55%(v/w) by combination of ammonium sulfate concentration, shaking rate, fermentation time are 0%, 31.69 rpm, 72 hours respectively.Keywords: box behnken, Fermentation, yield

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