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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 570 Documents
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HYDROLIZE CANE WASTE To GLUCOSE by Trichoderma viride (Study on Cane Waste Concentration and Fermentation Time) Saparianti, Ella; Dewanti, T.; Dhoni, S. K.
Jurnal Teknologi Pertanian Vol 5, No 1 (2004)
Publisher : Fakultas Teknologi Pertanian Universitas Brawijaya

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Abstract

Trichoderma viride is the one of selulolitic microorganisms that can produce glucose  from selulose rich material such as cane waste.  This research was conducted to study the effect of cane waste concentration and  fermentation time on glucose yield of the liquid.  Completely Randomized Block Design (CRBD) was employed on this research with two factors.  Factor I is cane waste concentration (2, 5, 8%) and factor two is fermentation time (5, 10 15 days). The result showed that cane waste concentration significantly (α=0,01) affected  glucose yield, selulolitic activity, viscosity, and total dissolved  solid.   Fermentation time siginificantly (α=0,01)  affected glucose yield, total molds, selulolitic activity, viscosity, and total dissolved  solid. The high glucose yield (13,442%)  was reached at  cane waste concentration of 8% and  fermentation time of 15 days.   This treatment caused selulose of 18,829% was hydrolyzed with selulolitic activity of  74,678 NCU, total molds of 65,33 x 105, viscosity of 9,387 x 10-3 centipoise , and total dissolved  solid of 6,47 (brix).   Key words : cane waste, glucose, selulolitic activity, Trichoderma viride
Pencegahan Pencoklatan Umbi Ubi jalar Untuk Pembuatan Tepung: Pengaruh Kombinasi Konsentrasi Asam Askrobat dan Sodium Acid Pyrophosphate Kumalaningsih, Sri; Harijono, Harijono; Amir, Y. F.
Jurnal Teknologi Pertanian Vol 5, No 1 (2004)
Publisher : Fakultas Teknologi Pertanian Universitas Brawijaya

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Abstract

The research was conducted to find out the best combination of  ascorbic acid and SAPP concentration to prevent browning reaction to improve the appearance of sweet potato flour. A Completely Randomized Block Design with two factors was carried out. Ascorbic acid concentration of 1.00;2.00; and 3.00% as the first factor and SAPP (sodium acid poly phosphate) concentration ( 0.001; 0.01; and 0.1%) as the second factor. Both were dissolved in boiling water containing 0.6g/L citric acid. The best result of the combination was used for making sweet potato flour. The results showed that increased concentration of either ascorbic acid or SAPP reduced the browning reaction. But there was no interaction between treatment. The highest effectivity index (5.39) was showed by the addition of 2.00% ascorbic acid and 0.1% SAPP which reduced the rate of browning reaction with an R2 = 0.7997. Conversely, untreated sliced root showed a faster browning reaction with the R2 = 0.8621 after delaying the sliced tuber for 12 hours. There was a significant difference in flour lightness. The treated   root   has    L =   79,67     and untreated root has L = 77,46.   Keyword: sweet potato flour, browning reaction, ascorbic acid, Budidaya tani
Modifikasi Pengolahan Minyak Kelapa Untuk Meningkatkan Kualitas Ampas Minyak Kelapa. Kajian Dari Konsentrasi Na-metabisulfit dan pemarutan. Sukamto, Sukamto; Harmanto, Harmanto
Jurnal Teknologi Pertanian Vol 5, No 1 (2004)
Publisher : Fakultas Teknologi Pertanian Universitas Brawijaya

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Abstract

The waste of coconut oil by dry processing have not be used, because that was not higienes. The objective of this research is to study  effect of  Na-metabisulfit  concentration and sliecing waste quality.  The method used in the research  was Randimized Completed Block Design consisting   Na-metabisulfit  concentration rate (0, 750 and 1500 ppm) and sliecing (be slieced and was not slieced).  The quality parameters evaluated in waste of cocnut  were water conten,  protein, free fatid acid, silfit residue, and organoleptic aspects including  smell  and colour.     The statisical analiysis result indicated that sliecing  were significant on water content, free fatid acid, and smell.  Na-metabisulfit  concentrations  were  significant on the protein, colour and smell. Key word : oil, coconut, Na-metabisulfit
Perbaikan Tata letak Departemen Penataan Individual Quick Freezing dengan Menggunakan Studi Waktu. Studi Kasus di PT. Inti Luhur Fuja Abadi Pasuruan Aseanto, Budi Tri; Maryani, E.F. Sri; Hidayat, Nur
Jurnal Teknologi Pertanian Vol 5, No 1 (2004)
Publisher : Fakultas Teknologi Pertanian Universitas Brawijaya

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Abstract

Fish industry is one of the most strategic industry in Indonesia, this fact supported by the geographic location that caused plentiful materials available for this industry. Freezing is the well know way to keep the fresh quality of the materials, specifically for food materials. One kind of frozen product in fish industry is WGGS (Whole Gilled Gutted and Scaled) croacker frozen fish, were croacker fish that had been gilled, gutted and scaled during the production process. The problem find in the production of WGGS croacker frozen fish in Inti Luhur Fuja Abadi factory is the unbalanced flow of materials between the washing department with the capacity of the IQF (Individual Quick Freezing) pan ordering department. From the early measure to the cycle time at IQF pan ordering department, identified that too long transportation activity did by the workers caused longer cycle time. Longer cycle time caused longer standard time, and longer time standard effect to lower capacity of the department. To minimized the cycle time at IQF pan ordering department, also to reducing the transportation line, time study is one alternative to identified which move or work method’s elements use longer time compared with others. After the unefficient move or work method’s elements found, redesign plannig for the department’s layout held by using load distance’s score table. Key words: IQF pan ordering department, cycle time, standard time, redesign, load distance’s score table.
Correlation Of Emulsifying Properties And Microcapsule Oxidative Stability In Microencapsulation By Spray Drying Method Estiasih, Teti; Ahmadi, Kgs.
Jurnal Teknologi Pertanian Vol 5, No 1 (2004)
Publisher : Fakultas Teknologi Pertanian Universitas Brawijaya

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Abstract

This research was conducted to elucidate the correlation of protein emulsifying properties and microcapsule oxidative stability.  These properties were analyzed in sodiuym caseinate stabilized triglycerieds enriched with w-3 fatty acids emulsions.  Phospholipids was added to enhance these emulsifying properties. The results showed that emulsion stability index (ESI), refered to emulsion stability prior to drying, was correlated significantly with microcapsule oxidative stability.  Other properties did not significantly correlated because of phospholipids addition that cahnged the emulsifying properties and film forming properties of microcapsule concomitantly. Keywords: protein emulsifying properties, microencapsulation, oxidative stability
Penentuan Kurva Retensi Air Dengan Menggunakan Fractal Padatan Pori (Pore Solid Fractal pada Alfisol tanpa olah tanah Wirosoedarmo, Ruslan
Jurnal Teknologi Pertanian Vol 5, No 1 (2004)
Publisher : Fakultas Teknologi Pertanian Universitas Brawijaya

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Abstract

The water retention in the soil is determined by distribution of soil particle measurement.  The growth of the plants are influenced by the soil characters such as the structure, strength of the soil it self, the soil resitance to water The retention of the water can be estimated exactly by using the distribution data of particle measurement. So far, the determination of the water retention curve used is by using pressure plate, which is set in any pF, so it needs longer time. Model of the water retention characteristic is based on fractal model of soil structure. Up to now, soil structure is difficult to be quantitative or on the other hand, it is stated in qualitative, but by using fractal theory of soil structure, it can be quantitative. Fractal approach to set the water retention characteristic is based on water structure named Pore Solid Fractal (PSF). The model shows water retention characteristic related on water structure parameter, which means not only use the distribution of soil solid measurement related with model scaling.Calculating results by using data of measurement class and cumulative mass are D fractal dimension value 2.555 ± 0.404. D value is defined as fractal mass dimension because it is based on the soil cumulative mass. D value attained in this model cannot be obtained model estimation explicitly can be drawn. Based on the estimation of D value, if it is used for water retention curve will be obtained that in D value = 2.71 there is compatibility between analysis result and the calculation in modeling. The limitation of  D value needs to be done in order to get exact value (appropriate with the original condition).  Keyword: water retention, pore solid fractal, alfisol, and  soil structure
Penerapan Peta Kendali X , R Dan Sampel Penerimaan Standar Militer 414 pada Proses Grading untuk Pengendalian Mutu Udang Beku (Studi Kasus di PT SKB-Sidoarjo) Ratnawati, Ely; Lestari, Endah Rahayu; Suhartini, Sri
Jurnal Teknologi Pertanian Vol 5, No 2 (2004)
Publisher : Fakultas Teknologi Pertanian Universitas Brawijaya

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Abstract

Tujuan penelitian ini adalah mengetahui tentang gambaran mutu pemeriksaan keseragaman berat produk udang beku pada proses grading dengan menerapkan peta X dan R, membandingkan metode pemeriksaan Standar Militer 414 dengan metode perusahaan dalam mengendalikan keseragaman berat produk udang beku dan melihat perbedaan jumlah produk yang tidak sesuai dengan standar perusahaan antara sebelum dan sesudah penerapan Standar Militer 414, serta melihat perbedaan biaya mutu pada proses grading antara sebelum dan sesudah penerapan Standar Militer 414. Pengamatan untuk membentuk peta X dan R dilakukan selama enam hari kerja menggunakan 30 sampel dengan 5 sub grup, tiap sub grup terdiri dari 4 observasi. Pengambilan sampel berdasarkan Standar Militer 414 menggunakan jumlah populasi (N) 47 ember udang. Pada pemeriksaan normal dan ketat jumlah sampel yang diamati (n) 7 ember udang dan pada pemeriksaan normal jumlah sampel (n) 5 ember udang. Jumlah maksimal produk tidak sesuai dengan standar yang masih dapat diterima (M) pada pemeriksaan normal 12,20%, pemeriksaan ketat 8,40% dan pemeriksaan longgar 12,19%. Tingkat Kualitas Terima (TKT) yang digunakan sebesar 4%. Hasil penerapan peta  dan R menunjukkan bahwa proses grading dalam keadaan terkendali dengan menghasilkan 5,85% produk udang tidak sesuai dengan standar berat perusahaan. Penerapan Standar Militer 414 dapat menurunkan jumlah produk udang yang tidak sesuai dengan standar berat perusahaan dari 27 ember udang/47 ember udang menjadi 12 ember udang/47 ember udang atau terjadi penurunan 32%. Biaya mutu yang dikeluarkan oleh perusahaan juga mengalami penurunan dari Rp1.377.624,64/bulan menjadi Rp1.345.173,76/bulan atau terjadi penurunan 3,47%.
OPTIMIZATION SPORES PRODUCING β-KAROTEN OF FUNGUS Neurospora sitophila BY RESPONSE SURFACE METHOD (On Fermentation Process Duration and Starter Concentration) Novianti, Trisita; Wignyanto, Wignyanto; Nurika, Irnia
Jurnal Teknologi Pertanian Vol 5, No 2 (2004)
Publisher : Fakultas Teknologi Pertanian Universitas Brawijaya

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Abstract

Supplying nutrient was still difficult problem in developing countries like Indonesia, one of them was the lack of supplying vitamin A. Provitamin A source, especially β- karoten, much β-karoten could be gotten from fruits and vegetables which have yellow or green colour, the others alternative of supplying vitamin A could be gotten from fungus Neurospora sitophila strain in solid tofu waste medium on fermentation process duration and starter concentration which have been adjusted in optimal condition Experimental design used central composite design with two factors (fermentation process duration and starter concentration of fungus Neurospora sitophila) and two responses (β-karoten concentration and spores amount). Variables of fermentation process duration factor were 5,172 days, 6 days, 8 days, 10 days, and 10,828 days, while variables starter concentration factor were 1,757%, 3%, 6%, 9%, and 10,243%.  Analysis which have done, were: β-karoten analysis, spores amount analysis, pH analysis, moisture content analysis, and optimization by response surface method were the research process. The counting result were β-karoten concentration of fungus Neurospora sitophila response had quadratic model Y =  86,18265 + 7,63485 X1 + 1,67998 X2 – 0,41042 X12 –0,086288 X22 – 0,062833 X1X2 with R2 = 95,06% and spores amount of fungus Neurospora sitophila response had quadratic model Y = 10,77813 + 0,11552 X1 + 0,023106 X2 – 6,85906.10-3 X12 – 2,13736.10-3 X22 + 7,79167.10-4 X1X2 with R2 = 98,28%. For the applying of industry, the result of optimal β-karoten concentration was 125,2408 ppm with optimal spores amount was 11,3682 log spora/ml, while optimal fermentation process duration was 9 days with optimal starter concentration was 6,8%.   Key Word : β-karoten, Neurospora sitophila
CLUSTERING OF TEMPE INDUSTRIES BASED ON INDUSTRY CLASSIFICATION BY CLUSTER ANALYSIS (Case Study In Tempe Industry Centra Of Malang City) Hermayudi, Wawan Agus; Effendi, Usman; Hidayat, Nur
Jurnal Teknologi Pertanian Vol 5, No 2 (2004)
Publisher : Fakultas Teknologi Pertanian Universitas Brawijaya

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Abstract

The purpose of balancing development protected the wide of gap, especially tempe industries as special produk of Malang City. The research purpose to know tempe industries map in Malang City were known the different of each cluster and how handled its. The local government of Malang City by the information was hoped could serious moved the specific development of otonomi daerah, on the target, and balanced in whole of Malang City area. Clustering in this research used Cluster Analysis by the helped of Statistical Program SPSS 11 version. The research was conducted started January 2004 in industries tempe centras which had chosen by Depperindag of Malang City. The variables which were used were the variables to classify the industry such as worker total, production value, row material total, investment value, and were added used tecnology, and product diversification for more informative. Data analysis were used Korelation Test, Dominant Komponen Searching, and Hierarchy Clustering Method. By the data analysis was known that all of tempe industries in Malang City were micro and small classified still which 17 industries (20%) were micro and 85 industries (80%) were small. If the result was three cluster, Tulusrejo, Merjosari, and Mulyurejo Centra were just made a cluster which had big chance become micro industry. Lesanpuro Centra made two cluster which four industries joined as Cluster One and two industries joined as Cluster Two and eventhough they had small industy classification but had big chance joined as Cluster One. Sanan Centra was centra which spreaded made three cluster such as 64 industries joined  as Cluster One, 14 industries joined as Cluster Two, and one industry joined as Cluster Three. The clusters were description  about the level which bigger and bigger.   Key Word : Tempe Industry, Cluster Analysis
Minimasi Biaya Distribusi Tempe Dengan Menggunakan Metode Travelling Salesman Problem (TSP) (Studi Analisa Usaha Kecil Hikma Sanan – Malang). Utomo, Handri Tri; Pulungan, M. Hindun; Santoso, E.F. Sri Maryani
Jurnal Teknologi Pertanian Vol 5, No 2 (2004)
Publisher : Fakultas Teknologi Pertanian Universitas Brawijaya

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Abstract

Pengelolaan perusahaan dapat dilakukan dengan baik melalui peningkatan produktivitas kerja terutama untuk perusahaan yang proses produksinya dilakukan secara manual. Perusahaan rokok Sumber Rejeki adalah salah satu perusahaan yang proses produksinya dilakukan secara manual. Permasalahan yang terjadi adalah perusahaan hanya bisa memenuhi 75% target produksi yang ada. Perbaikan metode kerja di bagian pelintingan rokok dapat dilakukan untuk mengatasi masalah tersebut. Perbaikan metode kerja ini bisa dilakukan melalui studi gerak dan waktu. Tujuan dari penelitian ini adalah meningkatkan efisiensi kerja melalui perbaikan metode kerja pada bagian pelintingan. Hasil penelitian menunjukkan dari perbaikan metode kerja pada proses pelintingan rokok di P.R. Sumber Rejeki yang dilakukan dengan merubah tata letak, menggabungkan gerakan tangan kiri dan tangan kanan, serta mengeliminasi gerakan menunggu (unavoidable delay) dan memegang untuk memakai (hold). Perbaikan ini dapat mempercepat waktu siklus dan waktu standar serta meningkatkan output aktual, output standar dan efisiensi kerja.   Kata kunci: perbaikan metode kerja, waktu standar, efisiensi kerja

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