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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.
Arjuna Subject : -
Articles 578 Documents
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The Influence of Apple and Snakefruit Vinegar on Blood Glucose Levels of Male Wistar Rats Fed with High-Sugar Diet Zubaidah, Elok
Jurnal Teknologi Pertanian Vol 12, No 3 (2011)
Publisher : Fakultas Teknologi Pertanian Universitas Brawijaya

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Abstract

Vinegar is a liquid that produced from starch and sugar-contained material by alcoholic and acetic fermentation. Usually, vinegar is made from fruits including apple and snakefruit. Apple and snakefruit vinegar contains natural antioxidants that able to neutralize free radicals from oxidation reactions therefore prevents degenerative deseases. This study was objected to know the effect of apple and snakefruit vinegar to reduce blood glucose levels on male Wistar rats fed a high-sugar diet, and to compare the effectivity of apple vinegar and snakefruit vinegar on blood glucose decline.  This study is a laboratory experimental with Post Test Only Control Group Design. Rats were divided into four groups (normal diet, high-sugar diet, high-sugar diet + apple vinegar, and high-sugar diet + snakefruit vinegar.  The result showed that apple vinegar and snakefruit vinegar lowered blood glucose levels near to normal. High sugar-diet group (211.0 mg/dl) revealed a significant glucose level difference compared to normal diet (156.3 mg/dL), high sugar-diet + apple vinegar (146.3 mg/dL), and high sugar-diet + snakefruit vinegar group (132.7 mg/dL). Keywords: apple vinegar, snakefruit vinegar, high sugar-diet
Viability of The Lactobacillus casei Probiotic in Yoghurt from Goat Milk during Frozen Storage Cahyanti, Antonia Nani
Jurnal Teknologi Pertanian Vol 12, No 3 (2011)
Publisher : Fakultas Teknologi Pertanian Universitas Brawijaya

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Abstract

This research was conducted to study the viability of the probiotic L. casei in yoghurt from goat’s milk during frozen storage. Yoghurts were made with L. casei as a probiotic starter, stored in freezer for 0, 2, 4, and 6 days and also evaluated for pH, acidity, and probiotic count. The result showed that probiotic growth was decreased just on the 2nd day of storage significantly, and it was marked with the decreasing of acidity, probiotic count, and the increasing of pH. The probiotic seemed to be adaptive with the freezing condition after the 2 nd day of storage until the 6 day of storage. It was marked with the increasing of probiotic count, acidity, and the decreasing of pH. The probiotic count at the end of frozen storage were 7.96 log CFU/mL, wich fullfilled the Codex Allimentarius requirement for fermented milk consumption.
Designing and Performance Test of Ceramic Furnace Spiral Tube with Solid Fuel Ahmad, Ary Mustofa
Jurnal Teknologi Pertanian Vol 12, No 3 (2011)
Publisher : Fakultas Teknologi Pertanian Universitas Brawijaya

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Abstract

The objective of this research was to design and to test the performance of furnace heater that was made from ceramic with solid-fuel and with a spiral tube as a medium for heat transfer. The use of ceramic was aimed to prevent heat loss, and the use of spiral tube as a medium for heat transfer was to increase the contact surface. Performance test was done to include parameters such as calorific value of fuel, heat loss, thermal efficiency, furnace efficiency, and efficiency of fuel used. The test was conducted using two types of fuel as treatment, namely wood charcoal and coal briquettes, and with three times of replication for each treatment and test parameters. The test results indicated that the performance of the furnace using coal briquettes was better than using wood charcoal. The furnace thermal efficiency was 30% and the fuel consumption percentage was 97.44%Keywords : ceramics furnace, spiral tube, heat transfer, solid fuel
Technical and Financial Feasibility Analysis of Pumpkin’s Crackers Business Development with Chopper Machines in Small Enterprise Mustaniroh, Siti Asmaul; Effendi, Mas'ud; Mahdami, Safira Aziz
Jurnal Teknologi Pertanian Vol 12, No 3 (2011)
Publisher : Fakultas Teknologi Pertanian Universitas Brawijaya

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Abstract

This study aims to determine the technical feasibility and financial business development of pumpkin’s crackers with chopper machines to fulfill the shortage of pumpkin’s chips production. The importance of doing the technical and financial feasibility analysis is to analyze whether the planned business technicaly profitable enough to be carried out or not. Research methods in this research are organopleptic test, and technical and financial feasibility analysis. The results of organoleptic tests of taste, aroma, color and texture that consumers prefer are waluh crackers that produced using a chopper machine. The results of the technical and financial feasibility analysis demonstrate that business development is feasible to conduct.   Keywords: pumpkin’s crackers, technical and financial feasibility analysis, chopper machines
Design of Virgin Coconut Oil Processing Unit on Small Scale Industry: Study on Planting Location and Delay Time of Coconut before Processing Mulyadi, Arie Febrianto
Jurnal Teknologi Pertanian Vol 12, No 3 (2011)
Publisher : Fakultas Teknologi Pertanian Universitas Brawijaya

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Abstract

The objectives of this research were to gain the best delay time prior to processing for each planting locations and to design of Virgin Coconut Oil processing unit in small scale industry. This research was conducted by two steps. First, it was done by a nested randomized block design. The storage time prior to processing (1, 2, and 3 weeks) was nested on planting location (Lumajang, Malang, and Blitar region). The second step of the research was to make the design of the best treatment obtained from the first step. The result of the first step showed that the storage time was significantly different on the yield of VCO, water content, free fatty acid, peroxide value, and specific gravity. It was found that the best treatment was obtained from Blitar region with 3 weeks storage time. According to financial calculation, processing unit of Virgin Coconut Oil (VCO) in small scale industry at Blitar region was feasible.   Keywords: virgin coconut oil, planning of processing unit, delay time, planting location
Jatropha Oil Utilization as Basic Material of Grease Lubricant Yanto, Tri; Septiana, Aisyah Tri
Jurnal Teknologi Pertanian Vol 13, No 1 (2012)
Publisher : Fakultas Teknologi Pertanian Universitas Brawijaya

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Abstract

Grease is a kind of lubricant having form of semi solid to solid. It is made of three basic components: base oil, thickening agents and additives. Jatropha oil has a potential roles as a grease lubricant base oil. This research aimed to study the differences of basic material compositions towards the grease qualities, to study the thickening agent which had the most suitable for grease production and to determine the best treatment combination of grease formulation using jatropha oil. The research used an experimental method. The tested factors were types of oil consists and thickening agent consists. Physicochemical variables observed were: dropping point, pH, texture and corrosion resistance. The result of the research showed that the differences of basic material compositions gave the influence to the grease dropping point characteristics. The addition of castor oil 15% could decrease the grease dropping point (from 101.33 oC to 99.08 oC) while the addition of mineral oil lubricant 15% could increase the grease dropping point (101.33 oC to 112.58 oC). The thickening agent which had the most suitable for grease production using jatropha oil was LiOH 3.5% + Al(OH)3 0.5% produced 128.83 oC of dropping point. The best formulation based on zero-one test method obtained at treatment of M3P6, i.e. the grease which has basic materials composition of jatropha oil + mineral oil lubricant 15% and thickening agent of LiOH 0.5% + Al(OH)3 0.5%. That formulation had the characteristic 138 oC of dropping point, pH 7.5, 4.63 mm/dt of texture (NLGI grade of 3) and corrosion resistance included in group 1b (dark orange). Keywords: grease, jatropha oil, castor oil
Flood Prognosis of Keyang Sub-Sub Watershed Using SIMODAS for Strategic Environmental Assessment on Spatial Planning of Ponorogo District Haji, Alexander Tunggul Sutan; Wirosoedarmo, Ruslan; Syiama, Lissa Rullis
Jurnal Teknologi Pertanian Vol 13, No 1 (2012)
Publisher : Fakultas Teknologi Pertanian Universitas Brawijaya

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Abstract

The research aimed to apply SIMODAS in order to predict the flood hydrograph in Keyang sub-sub watershed used for Strategic Environmental Assessment was instrument used for urban planning at Ponorogo district. The method used is data analysis. The data requirement covers spatial and atribut data. The spatial data were digital map of topography, river network, soil types and land use. The land use digital map covers the map of existing condition and the map of spatial planning Ponorogo district. While, the atribute data were daily rainfall. The simulation by using SIMODAS aimed to compare the existed flood hydrograph curve and the change of flood hydrograph curve caused by the change of landuse. The expected benefit is that it can help predict the flood hydrograph, so the government of Ponorogo be more leverage to prevent floods. The result showed that the flood hydrograph of existing condition for the 10, 25, and 50 year repeated period describe the flood peak discharge 1672.94 m3/second, 2030.876 m3/second, and 2255.146 m3/second. While, the at time needed to reach the flood peak discharge were 101 minutes, 99 minutes, and 98 minutes. The change of land use can cause the flood peak discharge becomes 1727.457 m3/second, 2085.384 m3/second, and 2317.951 m3/second for the 10, 25, and 50 year repeated period. This also cause the flood peak time to become 99 minutes, 96 minutes, and 93 minutes. Keywords: flood hydrograph, SIMODAS, environmental assessment, ponorogo
Isolation and Characterization of Amylolytic Lactic Acid Bacteria during Growol Fermentation, an Indonesian Traditional Food Putri, Widya Dwi Rukmi; Haryadi, Haryadi; Marseno, Djagal Wisesa
Jurnal Teknologi Pertanian Vol 13, No 1 (2012)
Publisher : Fakultas Teknologi Pertanian Universitas Brawijaya

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Abstract

Amylolytic lactic acid bacteria are a group of bacteria that capable to use starch as the only carbon source. Lactic acid bacteria naturally present in growol (a traditional food from fermented cassava) is an indigeneous bacteria that groww in cassava based media. The aims of this research were to isolate, characterize, and identify lactic acid bacteria during growol fermentation. Two hundred and thirty one colonies of lactic acid bacteria were isolated during 0, 24, 48, 72, 96, and 120 hours cassava fermentation. Sixty three isolates were characterized as gram positive, katalase negative, and non producing gas from glucose, but only thirteen isolates had amylolytic characteristics. Identification showed that all isolates were Lactobacillus genera specifically Lactobacillus plantarum and Lactobacillus rhamnosus. Keywords: growol, sour cassava starch, lactic acid bacteria, amylolytic ability, Lactobacillus
Analysis of Variables Affecting Employee’s Turnover Intention Using Structural Equation Modeling (SEM) (Case Study at PT Wonokoyo Jaya Corporindo, Pasuruan) Yuliasia, Yeni; Santoso, Imam; Hidayat, Arif
Jurnal Teknologi Pertanian Vol 13, No 1 (2012)
Publisher : Fakultas Teknologi Pertanian Universitas Brawijaya

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Abstract

The high turnover rate gives significant losses for the company. These losses are mainly about the costs for training new employees and obtaining the competences as mastered by the leaving workers. PT Wonokoyo Jaya Corporindo is one of the companies in Indonesia which produces various kinds of processed foods ​​from chicken, such as sausages and nuggets. Last year, the employees’ turnover rate is very high so that it leads to disrupted production activities and the decline of corporate performance. The aim of this research was to analyze the variables that affect employees’ turnover intention, such as salary and job satisfaction as well as social support. The samples used in this research were 115 workers of Further and Sausage Processing Plant of PT Wonokoyo Jaya Corporindo. The main instrument was a questionnaire that measured by the Likert scale. The Structural Equation Modeling (SEM) with LISREL 8.7 was deployed to analyze the relationship between those investigated independent and dependent variables. The results show that salary satisfaction, social support and job satisfaction have negative effects on the turnover intention, which are illustrated by t-values of -2.49, -2.09 and -2.34, repectively. In addition, salary satisfaction and social support give positive effect onemployees’ job satisfactions which are figured by t-value of 3.29 and 3.14, respectively. Keywords: salary satisfaction, social support, job satisfaction
Analysis of Performance Measurement using Performance Prism Method (Case Study in PT. Inti Luhur Fuja Abadi, Pasuruan) Dania, Wike Agustin Prima; Santoso, imam; Sari, Rheysa Permata
Jurnal Teknologi Pertanian Vol 13, No 1 (2012)
Publisher : Fakultas Teknologi Pertanian Universitas Brawijaya

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Abstract

Performance prism method is used to improve performance measurement method in PT Inti Luhur Fuja Abadi Pasuruan. The design and performance measurement methods used for Performance Prism can reflect the needs and desires of each stakeholder identified in the form of goals (objectives). Performance measurement is an integrated measurement, covering all aspects of the company (stakeholders) involving stakeholder satisfaction and stakeholder contribution to the company. Performance measurement in this study is also supported by several methods such as weighting by Hierarchy Analytic Process (AHP) to determine the scale of priority value of each Key performance Indicator (KPI), Scoring System Objectives Matrix method (OMAX) to determine performance indicator, and Traffic Light System to determine which KPI that need improvement based on color. From this result, it can be seen that there are four KPIs that need improvement, which are, customer suggestion (C-4), core competition application (E-6), payment time (S-1), bargaining processing (S-2). Overall, the company’s performance in cooperate stage is good with the value is 9.46326. Keywords: key performance indicator, analytic hierarchy process (AHP), objectives matrix (OMAX), traffic light system

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