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INDONESIA
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.
Arjuna Subject : -
Articles 578 Documents
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Studies of Antibacterials effect of Fresh Soft Coral (Geodia sp.) Extract Against Escherichia coli and Vibrio parahaemolyticus and The Content of Active Compounds Faikoh, Elok Ning; Yuliana, Denok Eka; Suhendriani, Sari; Aini, Herlin Qurotul
Jurnal Teknologi Pertanian Vol 14, No 3 (2013)
Publisher : Fakultas Teknologi Pertanian Universitas Brawijaya

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Abstract

Soft corals (sponge) is a species of marine animals that live in the coral reef environment. There are more than  five thousand species found  in nature. The generally aims of this study are to diversify the utilization of diverse species of marine life in Indonesia through out  knowledge about the chemical content and its bioactive characteristic especially sponge Geodia sp. The results showed that the crude extract of fresh soft corals Geodia sp. has antibacterial activity against E. coli and Vibrio parahaemolyticus. The most effective solvent to extract secondary metabolites in a fresh Geodia sp. is chloroform. The results of GC-MS analysis was found 16 secondary metabolites in soft corals Geodia sp,. Two of the most dominant  are  Androst-4-en-3-one at 34.06% and 1,5-di-tert-butyl-1 ,3-cyclohexadine at 17.96% and both of them are  derivative of  terpenoid.Keywords: soft corals, antibacterial, secondary metabolites
Design and Techno-economic Evaluation of Pokem (Setaria italica) Tresher Machine istalaksana, Istalaksana; Payung, Paulus
Jurnal Teknologi Pertanian Vol 14, No 3 (2013)
Publisher : Fakultas Teknologi Pertanian Universitas Brawijaya

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Abstract

The threshing process  of pokem (papua wheat)  is still carried out with a traditional equipment with very limited  capacity. The aim of this study was to design the thresher, test the performance of the threser as well as carried out techno-economic evaluation of Pokem threshing machine. The results showed that the threser was successfully built with 6.54 kg/hr of threshing capacity, efficiency of threshing  of  94% and stem separation percentage of 78%. The techno-economic evaluation show the Net Present Value (NPV) of Rp. 18,796,600.00, BCR of  2.52, IRR of 64% and bigger commercial rate of interests (17%). The Payback Period (PBP) was 1.7 years. This results shows that the Threser machine has a potential to be developed in Papua.Keywords: Pokem, techno-economic evaluation, pokem thresher, design construct
Productivity Analysis Using Objective Matrix (OMAX) Method: Case Study On The Production Departement of Sari Roti PT Nippon Indosari Corpindo, Tbk Pasuruan Hamidah, Nurul Hazmi; Deoranto, Panji; Astuti, Retno
Jurnal Teknologi Pertanian Vol 14, No 3 (2013)
Publisher : Fakultas Teknologi Pertanian Universitas Brawijaya

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Abstract

The purpose of this study was to determine the level of partial and total productivity on the production department of Sari Roti PT Nippon Indosari Corpindo, Tbk Pasuruan with productivity measurement was carried out in January to December 2012. The result of this research can be used as the benchmark productivity and basis of planning for increasing productivity in future periods. Objective Matrix (OMAX) methods was used for analyzing the data. Criteria of productivity used in this study were the use of raw material, man hour, fuel, and electrical energy. The results showed that the highest score of productivity was on the use of man hour which was achieved in October at level 9. The criteria for the use of raw materials, fuel, and electrical energy reached the lowest score of 0 on November and December. The highest value of total productivity index level achieved during the measurement period was 84.69% in October and the lowest value was -95.18% in November. Unsuitable raw material received, defective parts, discomfort working environment, lack of discipline, lack of motivation, and too tired workers were factors that lead to low productivity in the production department of Sari Roti PT Nippon Indosari Corpindo, Tbk Pasuruan.Keywords: Objective matrix (OMAX), bakery industry, productivity
Utilization of Microwave Pretreatment Process Degradation of Lignin in Pulp Sugarcane (Bagasse) in Bioethanol Production Widyawati, Niken Lila; Argo, Bambang Dwi; Hendrawan, Yusuf
Jurnal Teknologi Pertanian Vol 15, No 1 (2014)
Publisher : Fakultas Teknologi Pertanian Universitas Brawijaya

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Abstract

Bagasse contains lignocellulose can be broken down into glucose as bioethanol production. In this research, bagasse pretreatment was conducted using NaOH solution and utilizing microwave irradiation in a microwave. The purpose of this research was to determine the effect of long exposure to microwave with NaOH concentration on the cellulose content. Pretreatment of bagasse is done in the microwave with the variation of time (10 minutes, 20 minutes, 30 minutes, and 40 minutes) and the variation of the concentration of NaOH (1 molar, 2 molar, and 3 molar). Characteristics before and after treatment were analyzed by Scanning Electron Microscopy (SEM). The results showed that the highest content of cellulose with an average of 86.85% by treatment with NaOH 3 molar and long exposure to microwave 40 minutes. While the lignin content decreased from 17.56% to 5.47% and a hemicellulose content of 20.98% to 2.58%.Keywords: lignocellulose, NaOH, SEM 
Voltage and Frequecy Effect to Characteristic and Amount of Microorganism of Starfruit Extract (Averrhoa carambola L) Using Pulsed Electric Field (PEF) Sumarlan, Sumardi Hadi; Liani, Riska Dwi April; Yulianingsih, Rini; Indriani, Dina Wahyu
Jurnal Teknologi Pertanian Vol 15, No 1 (2014)
Publisher : Fakultas Teknologi Pertanian Universitas Brawijaya

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Abstract

Fruit extract is one of the food commodities with high demand. Good processing will increase consumption level and sell price. There are two methods for food processing, thermal processing and nonthermal processing. Nonthermal processing method using Pulsed Electric Field (PEF) is one of the alternative way which can be used to decrease amount of microbs and keep fruit extract’s nutritions. Bangkok Red Starfruits varieties which has good taste and smooth texture has be come a good raw material in starfruit extract manufacture. Voltage variations in this research are 20 kV, 30 kV and 40 kV, with frequency variations which are 10, 20, 30 and 40 kHz. Testing results of this research using PEF showed that initial amount of microbe are 1300 CFU/mL can decrease effectively. Minimal decrease happened at voltage 40 kV and 30 kHz of frequency reached 130 CFU/mL. Maximal decrease happened at 40 kV of voltage reached 85.19%. with amount of microbs 1.925 x 103 CFU/mL. Lethal rates per second is 21.3 CFU/mL at 40 kV of voltage. Characteristic result testing has not significant diferences, there are range of pH at 3.09-3.24, Density 1.047-1.076 gram/cm3 , Total Suspended Solid at 14.5-15.6 %Brix, Viscosity at 7-9 Cp, Vitamin C contained at 11.66-16.97 mg/100 mL, and range of color, there are brightness level at 27.8-29.3, red level at 6.7-7.3 , and yellow level 6.8-7.9 .Keywords: Bangkok Red Starfruit, Pulsed Electric, Microbe Amounth. 
The Comparison of Paddy Straw Lignin Degradation Pretreatment Process Using Wet Milling and Dry milling in Bioethanol Production Ni’mah, Farisatun; Argo, Bambang Dwi; Lutfi, Musthofa; Maharani, Dewi Maya; Putranto, Angky Wahyu
Jurnal Teknologi Pertanian Vol 15, No 2 (2014)
Publisher : Fakultas Teknologi Pertanian Universitas Brawijaya

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Abstract

Bioethanol is one alternative to fossil fuel substitutes depleting annually. Bioethanol production using waste material containing cellulose such as rice straw, require special attention in the process of pretreatment to customize the lignocellulose both in terms of structure and size to break up and reduce the content of lignin and hemicellulose. This research has been conducted on the hydrolysis of rice straw using wet milling pretreatment (WMP) and microwave-NaOH method compared to the dry milling pretreatment (DMP) with respect to the content of cellulose, hemicellulose and lignin. The results showed that the hydrolysis using WMP has a lower content of cellulose, hemicellulose and lignin compared to the DMP, since the size of the rice straw affect the mesh lignocellulose content. The larger mesh size of rice straw used, so the lignocellulose content is getting smaller.   Keywords: Bioetanol, Delignifikasi, Pretreatment, Wet Milling, Rice Straw
Designing Overall Equipment Effectiveness (OEE) Measurement Application: Case Study in PG Krebet Baru II Maknunah, Lu'lu' Ul; Astuti, Retno; Effendi, Mas'ud
Jurnal Teknologi Pertanian Vol 15, No 1 (2014)
Publisher : Fakultas Teknologi Pertanian Universitas Brawijaya

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Abstract

PG Krebet Baru II does not have a measuring tool that can help analyze its machineries performance. An effective way to analyze machine performance is OEE measurement based on Availability ratio, Performance ratio, and Quality ratio measurement. This study aims at getting OEE measurement application and giving the OEE result quickly and accurately. OEE measurement application was designed using Microsoft Visual Basic 6.0 as programming language, Microsoft Access 2007 as the database and using the prototype approach. Based on the results, prototype COPRA (Computation of OEE Process Rapidly and Accurately) was created. Prototype COPRA has a main menu consisting of Home, Input Data and Data OEE. It has a menu bar consisted of System (has two sub menus which were data delete and application exit), File (has three sub menus which were machine data, operator data and OEE report) and Help (has three sub menus which were user guide, contact person and about). Verification test results and validation test concluded that prototype COPRA was verified and valid. COPRA application passed testing and was ready to be used based on trial result that showed the difference in the COPRA and manual measurement result was less than 0.15%.Keywords: COPRA application, Designing application, OEE measurement
Formulation of Composite Flour Made from Wheat, Maize Sprout, and Seaweed for Dried Noodle Production Jannah, Roudotul; Sukatiningsih, Sukatiningsih; Diniyah, Nurud
Jurnal Teknologi Pertanian Vol 15, No 1 (2014)
Publisher : Fakultas Teknologi Pertanian Universitas Brawijaya

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Abstract

The aim innovation of noodle production by maize sprout and seaweed are to decrease utilization of wheat with exploited local commodity. In order to defend elasticity in noodle characteristic, seaweed’s flour as gelling agent can be added. This research consist of some stages i.e flour’s production, formulation, noodle’s production, selection of two formulas by hedonic scale test and observation of phisyco-chemical characteristic as noodle selected by hedonic scale test. The proportion of wheat flour and maize sprout flour was consist of 90% wheat and maize sprout flour. The ratio of wheat and maize sprout flours are 8:1 (P1), 7:2 (P2), 6:3 (P3), 5:4 (P4), 4:5 (P5). Seaweed flour which is  added in dried noodle’s batter is 10% at all treatment. As the control, batter made from 100% wheat flour. Based on hedonic scale test, value of color, taste, elasticity, and overall sensory characteristic are significantly different in all treatment of dried noodle’s formula. Value of aroma are not significantly different (ns) by hedonic scale test. The dried noodles made by formula of 80% wheat, 10% maize sprout, 10% seaweed and formula 70% wheat, 20% maize sprout, 10% seaweed were selected as best treatment by hedonic scale test. The flour’s proportion were significantly influence to content of ash, protein, carbohydrate, water holding capacity, cooking loss, ligthness and antioxidant activity. The difference flour’s proportion was not significantly influence  to the content of moisture and fat. Keywords: Antioxidant activity, cooking loss, dried noodle,  maize sprout, seaweed.
Organoleptic Characteristics of Dry Noodle Products from Yellow Sweet Potato (Ipomoea batatas): Study on Adding Eggs and CMC Mulyadi, Arie Febrianto; Wijana, Susinggih; Dewi, Ika Atsari; Putri, Widelia Ika
Jurnal Teknologi Pertanian Vol 15, No 1 (2014)
Publisher : Fakultas Teknologi Pertanian Universitas Brawijaya

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Abstract

In this research dried noodles making from sweet potato flour were carried out. Sweet potato varieties that used are Ace with yellow roots. The making of dry noodles from sweet potato flour required modification of the process because flour does not contain gluten. This study using some modifications in addition of eggs and Carboxy Methyl Cellulose (CMC). The aim of this study is to obtain the concentration of the addition of egg and CMC to produce dried noodles from sweet potato flour with the best quality of organoleptic. The experimental design was used a Randomized Block Design (RBD) is arranged with 2 factors. The first factor is the type of the addition of eggs which consists of three levels, namely 0%, 10%, and 20%. The second factor is the concentration of CMC consists of three levels, namely 0%, 1%, and 2%. Observational studies include observations organoleptic dry noodles with hedonic scale and the best treatment will be tested n physical quality. The results showed that the addition of different concentrations of CMC and eggs significantly different with a sense of liking for sweet potato dried noodles, while preference for color, aroma, and texture of sweet potato dry noodles were not significantly different. The best results for the organoleptic quality using CMC addition of 1% and 20% addition of eggs. The best organoleptic quality parameters at each of the color 4.2 (like slightly), the aroma of 4.4 (like slightly), sense of 5.4 (like slightly) and for texture by 5 (like slightly). Dried sweet potato noodles best treatment results have physical quality of cooking loss 17.48%, 54.80% swelling index, hydration of 66.42%, 1.58 ratio developments, water content 8.06% and a yield of 53%.Keywords: CMC, dry noodles, eggs, sweet potatoes, organoleptic
Analysis of Quality Control in Black Tea Drying Process with Six Sigma Methods: Case Study in PTPN XII (Persero) Wonosari, Lawang Januar, M.; Astuti, Retno; Ikasari, Dhita Morita
Jurnal Teknologi Pertanian Vol 15, No 1 (2014)
Publisher : Fakultas Teknologi Pertanian Universitas Brawijaya

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Abstract

Drying process was one of the CCP (Critical Control Point) in black tea manufacturing process.The purpose of this study were determining the sigma value of drying process on black tea manufacture determining the factors causing the process deviations and providing recommendation of priority improvement to reduce defects in the drying process in PT. Perkebunan Nusantara XII (Persero) Wonosari, Lawang. Measurements were performed by using the method of six sigma (define, measure and analyze) and FMEA (Failure Modes and Effects Analysis). The research result showed that the six sigma level in short-term process capability was 2.28 and the six sigma level in long term process capability was 2.41. Thesesigma value levelwere considered to be good for the company in Indonesia, because these value were over of 2 sigma which was standard sigma value in Indonesia. Factors causing deviations of drying process are methods, machine and the environment.The priority for improvement was carried out on failure modes with the biggest RPN value which was 252. This priority was on machine maintenance which was poor, such as a rare checking machine.Keywords: Quality Control, Drying Process, Six Sigma

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