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INDONESIA
Jurnal Teknologi Industri Pertanian
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 5 Documents
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Search results for , issue "Vol. 17 No. 2 (2007): Jurnal Teknologi Industri Pertanian" : 5 Documents clear
MODEL SIMULASI DAN RANCANG BANGUN KAPASITAS USAHA PENYULINGAN MINYAK NILAM Agus Supriatna Somantri dan Djajeng Sumangat
Jurnal Teknologi Industri Pertanian Vol. 17 No. 2 (2007): Jurnal Teknologi Industri Pertanian
Publisher : Department of Agroindustrial Technology, Bogor Agricultural University

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ABSTRACTEssential oil product as an export commodity has always been possessed an increasing world market in spite of facing hard competition and non-tariff barrier in the world trade; therefore there is a need to formulate a policy and an effort to increase the productivity and efficiency of integrated and sustainable essential-oil agroindustry.  This research aimed at providing the database of essential oil distillation system especially for the patchoully oil at variouse economic scale.  This database can be used as an input for engineering design system as well as for patchoully oil agroindustry system.  The methods used were analytical, numerical and econometrical which were supported by empirical and theoretical data. The research results showed that mathematical model constructed for prediction and optimization of essential oil distillation especially for patchoully-oil had the capability to generate integrative information of predictive equipments dimensions, rate of distillation and energy consumption.  Based on the mathematical model, theoretical pathcoully oil distillation time was 8 hours in order to produce average yield 2.54 %.  The quantity of the patchoully oil for each distillation process had positive correlation with the distillation capacity.  Economical analysis on essential oil distillation at variouse economic scale showed that the cost of distillation equipment at development level had positive correlation with the distillation capacity.  The minimum price of patchoully oil which was still profitable followed the equation y = 3 x 106x-0.4693 (R2 = 0.9891) if kerosene used as energy source. Keywords: Simulation, distillation, essential oil, patchoully. 
SINTESIS KOPOLI(ANETOL-DVB) SULFONAT SEBAGAI BAHAN ALTERNATIF RESIN PENUKAR KATION Desi Suci Handayani, Triana Kusumaningsih dan Muslimin
Jurnal Teknologi Industri Pertanian Vol. 17 No. 2 (2007): Jurnal Teknologi Industri Pertanian
Publisher : Department of Agroindustrial Technology, Bogor Agricultural University

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ABSTRACT    A synthesis of copolymer anethole-divinylbenzene (DVB) by cationic polymerization followed with sulfonation reaction has been done. The aim of this research is to synthesize of copolymer as cation exchange resin. Cationic copolymerization of anethole-DVB was done by using BF3O(C2H5)2 catalyst, without medium and under nitrogen atmosphere condition. Sulfonation reaction was done by H2SO4 reagent and Ag2SO4 catalyst. The structural prediction of the synthesis yield was done by functional groups analysis with  FTIR spectrophotometer, while characterization of copolymer was done by thermal analysis using DTA (Differencial Thermal Analysis). The relative molecular weight of copolymer was determined by viscometry method. The copolymer tested as cation exchange resin by exchanging H+ (SO3H group) with Ca2+ in a column. The level of cationic exchanging capacity of copoly(anethole-DVB) sulfonat resin was determined by measuring the Ca2+ that replace H+ at resin using AAS.    Result of copolymerization of anethole-DVB was moon green coloured solid with relative molecular weight equal to 24,789 g/mole. Result of sulfonation was purple colored solid. Result of DTA analysis showed that degradation of copoly(anethole-DVB) begin at 550 oC, while degradation of copoly(anethole-DVB) sulfonate begin at 840 oC. AAS analysis showed the exchanging capacity of copoly(anethole-DVB) sulfonate equal to 296.756 meq Ca2+ ion/g of copolymer.Keywords    :    Anethole, cationic copolymerization, sulfonation reaction, cation exchange resin, copoly(anethole-DVB) sulfonate
PEMISAHAN SITRONELAL DARI MINYAK SEREH WANGI MENGGUNAKAN UNIT FRAKSIONASI SKALA BENCH Egi Agustian, Anny Sulaswatty, Tasrif, Joddy Arya Laksmono dan Indri Badria Adilina
Jurnal Teknologi Industri Pertanian Vol. 17 No. 2 (2007): Jurnal Teknologi Industri Pertanian
Publisher : Department of Agroindustrial Technology, Bogor Agricultural University

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ABSTRACTIsolation of citronellal from citronella oil has been studied by using bench scale (2-6 L) fractionation unit. The column used has packed with 120 stages and equipped with a reflux unit. The separation processes were based on temperature, the variation of vacuum pressure 40, 60, 80 mmHg and reflux ratio 10:10, 20:10, 30:10. The optimum condition was obtained at reflux ratio 20:10 and vacuum pressure 60 mmHg with yield of 41.33%. Chromatography analysis showed that isolate has citronellal content about 96.103%.  Keyword: citronella oil, citronellal, fractionation
MIKROENKAPSULASI d-LIMONEN UNTUK PERISAAN PRODUK EKSTRUSI Sri Yuliani, Peter J. Torley dan Bhesh Bhandari
Jurnal Teknologi Industri Pertanian Vol. 17 No. 2 (2007): Jurnal Teknologi Industri Pertanian
Publisher : Department of Agroindustrial Technology, Bogor Agricultural University

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ABSTRACTThe objectives of this research are to determine the effect of microencapsulation on d-limonene retention in starch extrudates and the effect of incorporating encapsulated d-limonene on extruder operation and extrudate properties. Two set of extrusion experiments were carried out in a twin screw extruder (16 mm diameter screw; 40:1 L/D ratio) using corn starch as a food matrix. In one set of experiments, d-limonene was encapsulated in -cyclodextrin. In the other experiments, d-limonene was encapsulated with sodium caseinate. Using a Central Composite Design, three variables were studied: level of encapsulated d-limonene in the feed material, extruder screw speeds and barrel temperatures. Another set of experiment with unencapsulated d-limonene was also performed. Measured parameters included extruder operation parameters (torque and die melt pressure), extrudate properties (expansion ratio and hardness) and d-limonene retention. All variables contributed significantly to the d-limonene retention and extrudate properties. -Cyclodextrin capsules gave higher d-limonene retention (average of 92.2%) than the sodium caseinate capsules (67.5%). A higher expansion ratio was observed from the extrudates containing sodium caseinate capsules than those with -cyclodextrin (average of 1.87 and 1.38, respectively). Extrudates containing -cyclodextrin capsules had a lower hardness (average of 1.14 N/mm2) than those with sodium caseinate capsules (average 2.34 N/mm2). Without encapsulation, retention of d-limonene was the lowest (average of 8.0%), extrudate hardness was the highest (average of 3.38 N/mm2) but expansion ratio was the highest (average of 2.1). Keywords : flavour, microencapsulation, extrusion, d-limonene, -cyclodextrin, sodium caseinate, expansion, texture
PEMUCATAN MINYAK DAUN CENGKEH DENGAN METODE KHELASI MENGGUNAKAN ASAM SITRAT Tri Marwati, Meika Syahbanna Rusli dan Edy Mulyono
Jurnal Teknologi Industri Pertanian Vol. 17 No. 2 (2007): Jurnal Teknologi Industri Pertanian
Publisher : Department of Agroindustrial Technology, Bogor Agricultural University

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ABSTRACTClove leaf oil is an essential oil that is produced by distillation of the whole leaves of clove tree. The problem which is occurred from that process was that the color of the oil is black brownish and dirty. That problem could be solved by chelating process using citric acid. Therefore, the objective of this research was to learn the mechanism of chelating process of clove leaf oil using citric acid. The mechanism of chelating process was studied by interpretation data from FTIR spectrum of clove leaf oil before and after chelating process, which is compared with FTIR spectrum of eugenol and FTIR spectrum of -cariophylen. Further study was done by learning the change of metal content, transmission and color of oil before and after chelating process. Results showed that the mechanism of chelating process : the appropriate use of citric acid permits separation of metal ions from the eugenol in the clove leaf oil and further made a complex citric acid-metal. The color of clove leaf oil changed from black brownness to yellow caused by decreasing metal content (Fe, Mg, Mn, Zn, Pb) in the oil Key word : clove leaf oil, chelating process, citric acid

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