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Jurnal Teknologi Industri Pertanian

jurnaltin
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Published by Institut Pertanian Bogor

ISSN : 02163160 EISSN : 22523901 DOI : 10.24961/j.tek.ind.pert

Core Subject : Agriculture, Engineering,

Agriculture, Biological Sciences & Forestry Engineering Industrial & Manufacturing Engineering

The development of science and technology in agriculture, has been instrumental in increasing the production of various agricultural commodities. But climate change is also uncertain world led to decreased agricultural productivity. World energy crisis resulted in higher prices of agricultural commodities due to competition between food and energy are higher. Efforts to utilize biomass (agricultural products) has started a lot of research, not only as raw material for bioenergy, but also in an attempt to exploit agro-products into valuable economic products, and realize clean production in agro-industry.

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Articles 9 Documents

Search results for , issue "Vol. 21 No. 1 (2011): Jurnal Teknologi Industri Pertanian" : 9 Documents clear

APLICATION OF ISM AND ME-MCDM TECHNIQUES FOR THE IDENTIFICATION OF STAKEHOLDERS POSITION AND ACTIVITY ALTERNATIVES TO IMPROVE QUALITY OF GAYO COFFEE Rachman Jaya, Machfud dan Muhammad Islam
Jurnal Teknologi Industri Pertanian Vol. 21 No. 1 (2011): Jurnal Teknologi Industri Pertanian
Publisher : Department of Agroindustrial Technology, Bogor Agricultural University

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ABSTRACT Application of artificial intelligence such as fuzzy logic is one of the ways to handle in the realworld with uncertainty situation like in coffee bean industry in Highland Gayo of Aceh Province. The aims of this study were to apply Fuzzy Multi Expert Multi Criteria Decision Making (MEMCDM) and Interpretatif Stuctural Modelling (ISM) methods in increasing of institutional system and coffee quality. The results of the study shows that for the coffee quality improvement, the importance alternatives were: improvement of agricultural technique, pre-harvest and post harvest technologies, whereas for the institutional system, the key elements were local government, farmers, and middle-man. Keywords: fuzzy-MEMCDM, ISM, institutional, quality of coffee

OPTIMIZATION OF GLYSEROL TERT-BUTIL ETER PROCESS SYNTHESIS AS A BIODIESEL ADDITIVE Dwi Setyaningsih, Sri Yuliani dan Amri Solechan
Jurnal Teknologi Industri Pertanian Vol. 21 No. 1 (2011): Jurnal Teknologi Industri Pertanian
Publisher : Department of Agroindustrial Technology, Bogor Agricultural University

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ABSTRACT Methyl esters of fatty acids, also known as biodiesel, made from transestherification of vegetable oil with methanol, have shown a lot of promise as alternative diesel fuels. However, biodiesel has some weaknesses that is poor of cold flow properties which can be a problem in temperate climate. Glycerol, as a by product of biodiesel process, can be synthesized become glycerol tert-butyl ether (GTBE) that can improve biodiesel cold flow properties. Etherification of glycerol with tert-butyl alcohol (TBA) catalyzed by bentonite was studied by influence of reaction time, temperature, and amount of catalyst. Central composite rotatable design (CCRD) was used to determine limitations, levels for each factor, and the experimental design. Minimum level for reaction time was 6 hours and the maximum level was 10 hours. Minimum level for temperature was 60ºC and the maximum level was 80ºC. Minimum level for amount of catalyst was 2.5% and the maximum level was 7.5%. Total GTBE yields was in the range of 8,958.99 ppm to 265,488.83 ppm. Optimal condition for syntheses GTBE was predicted at 4.9 hours of reaction time, 66.2ºC of reaction temperature, and 9.7% of catalyst with the yield after verification was 962,092.20. GTBE that has been synthesized could reduce cloud point and pour point biodiesel by 3°C. Keywords: biodiesel, etherification, glycerol tert-butyl ether (GTBE), optimization

PREDICTION OF VEGETABLE SUPPLY CRISIS TO URBAN AREAS WITH CONCEPT OF CRISIS BAROMETERS, BETA DISTRIBUTION, ESTIMATION OF THE POSSIBILITY VALUE AND MARKOV CHAINS Erna Rusliana M. Saleh dan Taufik Djatna
Jurnal Teknologi Industri Pertanian Vol. 21 No. 1 (2011): Jurnal Teknologi Industri Pertanian
Publisher : Department of Agroindustrial Technology, Bogor Agricultural University

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ABSTRACT Vegetable is a perishable commodity. When the crisis occurred such as floods, damages suffered by the company supplying the vegetables will be even greater, since the supply process is stuck. Floods in DKI Jakarta in recent years caused economic activity, including any system of vegetable supplies in crisis. Therefore, efforts are needed to deal with strategic planning the distribution of vegetables. The purpose of this paper was to identify the crisis conditions, to estimate the timing of the crisis and to predict the likely location of the crisis affected the supply of vegetables to urban areas due to flooding occurred with the concept of crisis barometer, the beta distribution, the estimated value of the possibility and markov chain. The results of the aggregation values of CIV and PF for forecasting the condition of vegetable supplier corporate crisis, obtained a value of 8 and 71.7% of the mean position of the status of the crisis faced by the firm was in alarming condition. Estimated time of vegetable supply crisis was expected to occur in 1126 years later. Predicted results show the possible locations of crisis that the possibility of crisis events in Jatinegara, Pulogadung, Kramat Jati, Cakung, Makassar, Pasar Rebo, Ciracas, Matraman and Duren Sawit for 2012 were 18.93%, 8.80%, 14.63%, 20.61%, 8.69%, 4.89%, 12.93%, 2.57%, and 8.98%. Keywords: vegetable supply, crisis prediction, crisis barometer, beta distribution, estimate the value of possibility, markov chains

IN SITU TRANSESTERIFICATION OF JATROPHA SEEDS: EFFECT OF REACTANT TYPE, STIRRING SPEED AND REACTION TEMPERATURE ON YIELD AND QUALITY OF BIODIESEL Ika Amalia Kartika, Mohamad Yani dan Dede Hermawan
Jurnal Teknologi Industri Pertanian Vol. 21 No. 1 (2011): Jurnal Teknologi Industri Pertanian
Publisher : Department of Agroindustrial Technology, Bogor Agricultural University

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ABSTRACT The objective of this study was to investigate in situ transesterification process which allows direct production of biodiesel from jatropha seeds. The reactant type (methanol and ethanol), the stirring speed (700, 800 and 900 rpm) and the reaction temperature (40, 50 and 60°C) were examined to determine the best performance of the biodiesel production yield and its quality. Generally, the stirring speed and the reaction temperature affected biodiesel production yield. An increase of biodiesel yield was observed as stirring speed and reaction temperature were increased. The reactant type did not affected biodiesel production yield. The highest biodiesel yield for the reactant of methanol (82.2%) and the reactant of ethanol (82.5) were obtained respectively under the stirring speed of 800 and 900 rpm, and the reaction temperature of 50°C. The effects of the reactant type, stirring speed and reaction temperature on biodiesel quality were less important. In all experiments tested, the biodiesel quality was very good. The acid value was below 0.5 mg KOH/g of biodiesel, water and sediment contents were very poor (< 0.05%), viscosity was low (< 3.6 cSt), saponification and ester values were high (> 180 mg KOH/g of biodiesel). In addition, the quality of biodiesel produced under optimum process condition was in accordance with Indonesian Biodiesel Standard. Keywords: transesterification, in situ, jatropha, biodiesel

CHARACTERISTIC OF BIODISESEL AND BIODIESEL BLENDING OF OIL LOSSES FROM LIQUID WASTE OF OIL PALM FACTORY Agus Sundaryono TIN
Jurnal Teknologi Industri Pertanian Vol. 21 No. 1 (2011): Jurnal Teknologi Industri Pertanian
Publisher : Department of Agroindustrial Technology, Bogor Agricultural University

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ABSTRACT The aim of this study was to convert oil losses from palm oil mill (POM) liquid waste into methyl ester. Methyl ester as a result of conversion process was further developed into blending biodiesel. The research was conducted through several stages: 1). insolating oil losses of POM waste which taken from PT Bio Nusantara Bengkulu. Oil losses were degummed and bleached and then the free fatty acid was determined. 2). the conversion process of oil losses into methyl ester was done through two stages of esterification reactions; using H2SO4 catalyst at 60oC for 2 hours and transesterification using NaOH catalyst at 55oC for 2 hours. 3). Methyl ester was developed as a blending of biodiesel, which is a mixture of methyl ester with diesel oil, with the percentages of methyl ester of 25%, 30%, 35%, 40%, and 45%. The yield of methyl ester obtained was 87%. Characterization of methyl ester was done with the following results : 0.858 g/cm3 density, 3.04 cSt viscosity, 3.5% water content, 12.3°C cloud point, 8.3°C pour point, 6.86 mgNaOH/g acid number, 164.4 mgNaOH/g saponification numbers, 108.4% iodine number, and 51.58 cetane number. The parameters do not meet SNI 04-7182-2006 for biodiesel were water content and acid number. Methyl ester can be developed into blending biodiesel with the characteristic of density, viscosity, cloud point, pour point, saponification number, and cetane number which meet biodiesel standard according to SNI 04-7182-2006. Keywords: biodiesel, oil losses, methyl ester, waste palm oil mill (POM), transesterification

PROCESS IMPROVEMENT OF METHYL ESTER SULFONATE SURFACTANT PRODUCTION AND ITS FORMULATION FOR THE ENHANCED OIL RECOVERY (EOR) APPLICATION Mira Rivai, Tun Tedja Irawadi, Ani Suryani dan Dwi Setyaningsih
Jurnal Teknologi Industri Pertanian Vol. 21 No. 1 (2011): Jurnal Teknologi Industri Pertanian
Publisher : Department of Agroindustrial Technology, Bogor Agricultural University

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ABSTRACT Surfactant injection is one of the methods to reduce the remaining oil in reservoir. This is done by injecting a surface active substance into reservoir until the tension of water-oil interface can be decreased. In order to make this process working optimally, an appropriate surfactant that fits the condition and formation of water and reservoir is needed. This research was aimed at getting the best design of production process of methyl ester sulfonate (MES) surfactant by using a continuous system of STFR (single tube falling film sufonation reactor) with SO3 gas reactant and formulating MES surfactant for its application on EOR. Process improvement resulted the best MES surfactant at treatment combination of dry air addition of 1.82 kg/hours and pH 8, sulfonation time of 3-4 hours and purification without methanol addition. The best MES-based surfactant formulation to be applied on EOR (carbonate field) was formula with MES surfactant composition of 0.3%, Na2CO3 of 0.3% and salinity level of 15,000 ppm. Keywords: sulfonation, methyl ester sulfonate (MES), optimal salinity, alkaline, MES- based formula

INTELLIGENT DECISION SUPPORT SYSTEMS FOR SEARCHING THE OPTIMUM PALM OIL BASED BIO-ENERGY SUPPLY CHAIN BY USING ANT COLONY OPTIMIZATION METHOD Ditdit N. Utama, Taufik Djatna, Erliza Hambali, Marimin dan Dadan Kusdiana
Jurnal Teknologi Industri Pertanian Vol. 21 No. 1 (2011): Jurnal Teknologi Industri Pertanian
Publisher : Department of Agroindustrial Technology, Bogor Agricultural University

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ABSTRACT Main backgrounds of developing model of intelligent decision support systems, for searching the most optimum supply path in palm oil based bio-energy supply chain management, are importance of supply chain management concept implementation in doing business activities that involve more than one companies; importance of palm oil based bio-energy management availability; and difficulty of management and searching of the most optimum path of perishable product supply chain. The objectives of this paper were the explanation of setting optimum value and searching the most optimum path of palm oil based bio-energy supply chain. The method used in this paper was combination of Balance Score Card (BSC), Supply Chain Operation Reference (SCOR), and ant colony optimization (SCO) methods. On the other hand, this paper explained the model suggestion of the most optimum path and comparation of developed model with the common model (shortest path). In conclusion, the developed model gave more optimum result than shortest path mehod gave. Furthermore, the model could show the optimum value that was generated from supply chain perspectives. It was better than shortest path method. Whereas, the shortest path method showed only the shortest path that involved only one variable, distance. Finally, the paper suggested that combination of the fuzzy and ant colony optimization method research was needed to do. Keywords: palm oil based bio-energy, intelligent decision support system, optimum path, supply chain management, ant colony optimization ABSTRAK

DETERMINATION OF NANOFILTRATION RESISTANSES USING SERIES RESISTANCE MODEL AT SEPARATION OF BETA-CAROTENE AND ALPHA-TOCOPHEROL PALM OIL IN ISOPROPANOL Sapta Raharja, Uki Ismiyati, Prayoga Suryadarma dan Erliza Noor
Jurnal Teknologi Industri Pertanian Vol. 21 No. 1 (2011): Jurnal Teknologi Industri Pertanian
Publisher : Department of Agroindustrial Technology, Bogor Agricultural University

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ABSTRACT Palm oil contains high concentrations of carotenoids and tocopherols that can be recovered by adsorption using attapulgite and desorption in isopropanol and then applying membrane technology to separate the beta-carotene and alpha-tocopherol in isopropanol. The aim of this study was to determine the optimum condition of nanofiltration and to obtain resistances of membranes using the series resistance model. Titania membranes with different pore diameters (5 and 10 nm) were applied on nanofiltration membranes in this study. Applied pressure was ranged from 1.5 to 2.5 bars and crossflow velocity was ranged from 0.14 to 0.97 m s-1. It was found that membrane 5 nm had optimum transmembrane pressure at 2 bars and feed flow at 0.42 m s-1 with permeate flux of 0.96 liter m-2 h-1. On the other side, membrane 10 nm had optimum transmembrane pressure at 2.2 bars and feed flow at 0.69 m s-1 with permeate flux of 2.4 liter m-2 h-1. The nanofiltrations with 5 and 10 nm were not effective to separate beta-carotene and alpha-tocopherol in isopropanol because permeate flux and rejection were very low with resistances of membranes and resistance index were very high. So that to increase the permeate flux and rejection needed study on the used of different membrane and solvent type, conditioning of feed and controlling of aggregate alpha-tocopherol insolution of palm oil vitamin. Keywords: nanofiltration, series resistance, beta-carotene, alpha-tocopherol, isopropanol

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PEDOMAN BAGI PENULISJurnal Teknologi Industri Pertanian Ketentuan Umum 1. Penulis harus menjamin bahwa naskah yang dikirimkan adalah asli dan tidak pernah dipublikasikan di jurnal lainnya, yang dinyatakan dengan surat pernyataan seperti terlampir.2. Naskah yang akan dipublikasikan pada Jurnal Teknologi Industri Pertanian dapat berupa hasil penelitian, analisis kebijakan, komunikasi singkat, opini, gagasan dan review. 3. Naskah dapat ditulis dalam Bahasa Indonesia atau Bahasa Inggris menggunakan format yang sesuai dengan kaidah bahasa yang digunakan. Editor tidak menerima naskah yang tidak memenuhi persyaratan yang diminta. 4. Penentuan layak tidaknya naskah yang akan dipublikasikan ditentukan oleh Dewan Editor Jurnal Teknologi Industri Pertanian atas masukan mitra bestari yang kompeten.5. Naskah dikirimkan ke editor sebanyak tiga eksemplar dalam bentuk naskah asli dan softcopy dalam CD atau dapat dikirim via email. Naskah ditulis dalam Microsoft Word, Gambar/grafik dalam Microsoft Excel dan tuliskan nama pengarang sebagai nama file. Naskah dapat dikirimkan dengan softcopynya kepada : Editor Jurnal Teknologi Industri Pertanian, Departemen Teknologi Industri Pertanian (TIN), Fateta IPB, Kampus IPB Darmaga PO Box 220 Bogor 16002, Telpon/Fax : 0251-8625088; 0251-8621974; dengan alamat e-mail: jurnal_tip@yahoo.co.id.atau jurnal_tip@ipb.ac.id6. Hak Cipta tulisan yang dimuat ada pada Jurnal Teknologi Industri Pertanian. Penulis yang naskahnya dimuat diharuskan membayar kontribusi biaya penerbitan sebesar Rp 25.000,- per halaman. Biaya tambahan untuk pencetakan halaman berwarna menjadi tanggung jawab penulis. Standar Penulisan 1. Naskah diketik dengan jarak 2 (dua) spasi kecuali Judul, Abstrak, Judul Gambar dan Judul Tabel diketik 1 spasi. Naskah diketik di atas kertas A4 dengan jumlah kata antara 4000 sampai 7000 kata termasuk gambar dan tabel yang diketik pada file terpisah dari teks.2. Naskah diketik menggunakan program Microsoft Word, kecuali Tabel dan Grafik menggunakan Microsoft Excel, dan Gambar menggunakan JPEG atau TIFF. Huruf standar yang digunakan untuk penulisan adalah Times New Roman 12.3. Naskah disusun dengan urutan : judul, nama penulis, alamat lengkap instansi setiap penulis, abstrak, pendahuluan, bahan dan metode, hasil dan pembahasan, kesimpulan, ucapan terima kasih (kalau ada) dan daftar pustaka.4. Tata nama latin binomial atau trinomial (italik) digunakan untuk tanaman, hewan, serangga dan penyakit. Nama lengkap kimia digunakan untuk senyawaan pada penyebutan pertama kali.5. Satuan pengukuran dipakai Sistem Internasional (SI).6. Penulisan angka desimal untuk Bahasa Indonesia dengan koma (,) dan untuk Bahasa Inggris dengan titik (.). Tata Cara Penulisan Naskah Judul. Judul harus singkat, spesifik dan informatif yang mencerminkan secara tepat isi naskah, dengan jumlah kata maksimal 15 kata ditulis dalam Bahasa Indonesia dan Bahasa Inggris. Judul diikuti dengan nama pengarang, institusi dan alamat, serta catatan kaki yang merujuk penulis yang bertanggungjawab untuk surat menyurat (corresponding author), lengkap dengan alamat surat, nomor telpon & faksimili serta alamat e-mail.Abstrak. Abstrak ditulis dalam Bahasa Inggris dan Bahasa Indonesia. Abstrak tidak boleh lebih dari 250 kata dalam satu paragraf. Abstrak berisi intisari dari keseluruhan naskah. Hindari penggunaan singkatan kecuali yang telah umum digunakan. Kata kunci (keywords) ditulis dalam Bahasa Inggris dan Bahasa Indonesia, terdiri atas tiga hingga lima kata, dan disusun berdasarkan kepentingan dan disajikan pada bagian akhir abstrak.Pendahuluan. Pada bagian ini disajikan latar belakang yang didukung dengan intisari pustaka, tujuan dan apabila diperlukan ruang lingkup penelitian sehingga pembaca dapat mengevaluasi hasil kajian tanpa harus membaca publikasi sebelumnya. Pustaka yang digunakan harus yang benar-benar relevan dengan penelitian yang dilakukan. Tinjauan pustaka sebaiknya diintegrasikan pada bagian pendahulan, metodologi dan pembahasanBahan dan Metode. Bagian ini berisi informasi teknis dan rinci sehingga percobaan dapat diulang dengan baik oleh peneliti lainnya. Jika digunakan peralatan/instrumen khusus maka perlu diberikan spesifikasi alat dan kondisi operasi.Hasil dan Pembahasan. Bagian ini menyajikan hasil penelitian, baik dalam bentuk bahan teks, tabel, dan gambar. Penggunaan foto sangat dibatasi pada hasil yang jelas. Setiap gambar dan tabel diberi nomor secara berurut dan harus diacu pada naskah. Gambar 1 dan Tabel 1 adalah contoh penulisan judul gambar dan tabel. Gambar 1. Hubungan antara pembentukan gas hold-up terhadap variasi laju alir gas dan nira (15 – 25 l/min) pada diameter nosel 5 mm Tabel 1. Komposisi media transmisiKomposisiJumlah (g/l)KH2PO43MgSO4.7H2O0,5(NH4)2SO40,3CaCl20,25FeCl3.6H2O0,02 Kesimpulan dan SaranKesimpulan ditulis secara ringkas tetapi menggambarkan substansi hasil penelitian yang diperoleh. Saran diberikan secara jelas untuk dapat ditindaklanjuti oleh pihak yang relevan.Ucapan Terima Kasih. Bagian ini dapat digunakan untuk mengapresiasi penyandang dana serta institusi dan personal yang membantu selama penelitian dan penyusunan naskah publikasi.Daftar Pustaka disusun berdasarkan urutan abjad menggunakan author-date system. Pustaka yang digunakan merupakan pustaka mutakhir (10 tahun terakhir) dengan proporsi pustaka jurnal lebih dari 50%, dan pustaka primer yang relevan. Tidak diperkenankan menggunakan pustaka kutipan sebagai acuan pustaka.JurnalSunarti TC, Nunome T, Yoshio N, Hisamatsu M. 2001. Study on outer chains from amylopectin between immobilized and free debranching enzymes. J Appl Glycosc 48 (1): 1-10.BukuBaker RW. 2004. Membrane Technology and Application. 2nd ed. West Sussex: John Wiley & Sons, Ltd.Chapter dalam BukuWhite PJ, Tziotis A. 2004. New corn starch. Di dalam Eliasson AC (ed.), Starch in Food: Structure, function and application. Cambridge: CRC Press. p295-320.ProsidingSunarti TC dan Yuliasih I. 2006. Fractionation of Sago Starch Using Hot Water Solubiliza-tion Method. Di dalam Proceedings of Malaysian Chemistry Conference 2006 – International Conference on Green Chemistry. Petaling Jaya, Malaysia. 19 – 21 September 2006. Thesis/DissertasiYuliasih I. 2007. Fraksinasi dan asetilasi pati sagu serta aplikasinya sebagai campuran plastik sintetik. [Disertasi]. Bogor: Institut Pertanian Bogor.Jurnal ElektronikRomo DMR, Grosso MV, Solano NCM, Castano DM. 2007. A most effective method for selecting a broad range of short and medium chain-length polyhidroxyalcanoate producing microorganisms. Electron J Biotechnol 10:e349-57, doi 10.2225. SURAT PERNYATAAN Kepada Yth.Redaksi Jurnal Teknologi Industri PertanianDi Tempat Bersama ini kami kirimkan naskahJudul : .....................................Penulis : 1. ............ 2. ............ dst.Instansi : 1. ............. 2. ............. dst.Untuk dapat diterbikan pada Jurnal Teknologi Industri Pertanian. Kami menyatakan bahwa naskah tersebut belum pernah diterbitkan, dan selama naskah ini masih dalam proses penelaahan dan penyuntingan tidak akan diajukan untuk diterbitkan di media manapun, kecuali kami telah mencabut secara resmi naskah tersebut dari Jurnal Teknologi Industri Pertanian. Mohon agar korespodensi (corresponding author) ditujukan kepada : Nama : ....................... Alamat : ....................... Telpon/HP/e-mail : ....................... Demikian surat pernyataan ini, atas perhatian dan kerjasamanya disampaikan terima kasih. .............., ................................... 200...Hormat kami, ( ...............................................)

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