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INDONESIA
JURNAL TEKNOLOGI KIMIA DAN INDUSTRI
Published by Universitas Diponegoro
ISSN : -     EISSN : -     DOI : -
Core Subject : Science, Engineering,
Chemical Engineering, Chemistry & Bioengineering Chemistry Engineering Industrial & Manufacturing Engineering
JURNAL TEKNOLOGI KIMIA DAN INDUSTRI adalah jurnal yang diterbitkan oleh Jurusan Teknik Kimia, Fakultas Teknik, Universitas Diponegoro untuk mempublikasikan karya ilmiah - karya ilmiah mahasiswa Program S1 Teknik Kimia Undip.
Arjuna Subject : -
Articles 178 Documents
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HIDROLISIS SELULOSA ECENG GONDOK (Eichhornia crassipe) MENJADI GLUKOSA DENGAN KATALIS ARANG AKTIF TERSULFONASI Putri Anggraeni; Zaqiyah Addarojah; Didi Dwi Anggoro
JURNAL TEKNOLOGI KIMIA DAN INDUSTRI Volume 2, Nomor 3, Tahun 2013
Publisher : Jurusan Teknik Kimia, Fakultas Teknik, Universitas Diponegoro,

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Abstract

This research engage water hyacinth (Eichhornia crassipes) as source of cellulose for hydrolysis into glucose using sulfonated activated carbon as catalyst. The aimsof this research are to know optimum conditions for hydrolysis water hyacinth into glucose which includes hydrolysis temperature, hydrolysis times, and the weight of catalyst. This research design uses three steps, first is making catalyst,then hydrolysis of cellulose and the last is testing content glucose of filtrate. The data results was plotted on a mathematical model and then optimized using the software Statistica 6.0 by Response Surface Methodology method (RSM). The result obtained by use of a mathematical model for relationship activator combination temperature, time and weight of catalyst for content glucose : Y = 11,601+2,353 x1 – 1,041x1² + 2,463 x2 – 1,554 x2² -2,847x3 – 1,316 x3² + 0,025 x1x2 - 0,885 x1x3 + 0,228 x2x3. The optimum conditions of hydrolysis variable for content glucose obtained from the graph fitted response surface and contour plot that indicates optimum hydrolysis temperature in the range 130°C to 170°C, the optimum hydrolysis time in the range 130 minutes to 210 minutes, and weight of catalyst in the range 3 gr to 20 gr. From this study are expected any further research on application glucose from hydrolysis of water hyacinth as raw material for bioethanol production.
KAJIAN PERTUMBUHAN LACTOBACILLUS CASEI PADA SUBSTRAT PORANG (AMORPHOPALLUS ONCOPHILLUS) Farisa Sirtika Ramadhan; Hanifah Rahim; Dyah Hesti Wardhani
JURNAL TEKNOLOGI KIMIA DAN INDUSTRI Volume 1, Nomor 1, Tahun 2012
Publisher : Jurusan Teknik Kimia, Fakultas Teknik, Universitas Diponegoro,

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Abstract

Nowadays, probiotic products which can be found in market are milk and cereal based products. Porang or iles-iles (Amorphophallus onchophillus) is one of roots which grow commonly wildly in Indonesia. Porang contains high of glucomannan concentration, aproximatelly 41.137%. This research is aimed to study the ability of probiotic bacteria named Lactobacillus casei to grow in various concentration of porang flour( 0,5%w; 1%w and 5%w) and fermentations time and The effect of milk on the growth of probioticbacteria also studied. The results shows that pH of suspension decreased in the line with fermentation time, and porang concentration. And the addition of milk does not affect pH of the suspension. Bacteria concentration increased with the lenght of fermentation time and the high concentration of starch. Meanwhile, glucose level declined along with the lenght of fermentation time and the amount  of porang suspense. The increase of suspension density is proportional to the fermentation time and concentration of porang. The effect of milk supplement did not show any different in all cases.This research concluded that bacteria Lactobacillus casei could grow in porang suspense. In the future it’s needed to study the optimum condition for bacteria Lactobacillus casei grow in porang suspense.
MODIFIKASI UBI KAYU DENGAN PROSES FERMENTASI MENGGUNAKAN STARTER Lactobacillus casei UNTUK PRODUK PANGAN Muchlis Riki Darmawan; Patrick Andreas; Bakti Jos; Siswo Sumardiono
JURNAL TEKNOLOGI KIMIA DAN INDUSTRI Volume 2, Nomor 4, Tahun 2013
Publisher : Jurusan Teknik Kimia, Fakultas Teknik, Universitas Diponegoro,

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Abstract

Modification of cassava flour(MOCAF) is fermented cassava flour biomass with the help of microorganisms. Modification of cassava flour has a protein content and properties of the physicochemical better than regular cassava flour (without fermenting). Manufacture of modified cassava flour through several stages, namely the preparation of cassava (peeling, washing and cutting), fermentation, drying and the process of conversion chips dried into flour. Modified cassava flour can be produced by fermentation using a wide variety of microorganisms such as the culture of the Lactobacillus casei group of lactic acid.This research aims to know the influence of the concentration of a starter, a thick piece of cassava chips and the addition of nutrients to increased levels of protein as well as the changing nature of the resulting physicochemical. Fermentation is carried out using lactic acid cultures of Lactobacillus casei starter with a concentration of 1%, 3%, and 5% V and nutrients used is ammonium hydrogen phosphate 5% w. In the fermentation process used pieces of 2 mm thickness of chips, 4 mm and 6 mm.The fermentation process is carried out for 72 hours, with the room temperature. From the results obtained: improvement of the highest protein of 3.68% in 2 mm, 5% V variable,% solubility best of 1.63% at 2 mm, 5% V variable, swelling power best of 17.8% in 2 mm, 1% V variable,% carboxylic 0.4% on the largest variables 2 mm ,5% the best tensile strength in noodle products of 0,138 N/mm2 with ratio of 10% MOCAF and 90% of the flour, and pilus expand power of 261,71% on 5% V variable.
OPTIMASI PROSES EKSTRAKSI GINGEROL DARI RIMPANG JAHE SEGAR MENGGUNAKAN PELARUT n-HEXANE SECARA BATCH Fitra Pradhita; Margaretha Praba Aulia; H Hargono
JURNAL TEKNOLOGI KIMIA DAN INDUSTRI Volume 1, Nomor 1, Tahun 2012
Publisher : Jurusan Teknik Kimia, Fakultas Teknik, Universitas Diponegoro,

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Abstract

Ginger contains gingerol which is very useful in the industry. Gingerol can be used in the crosslinking of starch to crosslinking the carbon chains in the starch. Gingerol on the market are still rare, expensive and of poor quality, so it needs to be studied gingerol extraction method to efficiently generate high-quality gingerol. This study aims to determine the most influential variables between solvent feed ratio, particle size ginger, temperature and look for the optimum operating conditions on the extraction of gingerol from fresh ginger rhizome. This study is planned by the method of factorial design two levels and three independent variables are: temperature (50 and 60 °C), particle size (10x10x1 mm and 5x5x1 mm), solvent feed ratio (1:6 and 1:4 g / ml solvent) . Dependent variable used is the volume of n-hexane 300 ml technical, stirring speed of 450 rpm and extraction time 1hr with sampling every 10 minutes. 3 variables show a positive influence / improve gingerol obtained and solvent feed ratio is the most influential. Optimum conditions in the extraction process is at a temperature of 60 ° C gingerol, 5x5x1 mm particle size, and solvent feed ratio of 1:4 g / ml solvent.
STUDI PENGARUH JENIS DAN KOMPOSISI KATALIS PADA PROSES PERTUMBUHAN CARBON NANOTUBE (CNT) DENGAN METODE CATALYTIC CHEMICAL VAPOUR DEPOSITION (CCVD) Retno Sutanti; Susi Handayani
JURNAL TEKNOLOGI KIMIA DAN INDUSTRI Volume 2, Nomor 2, Tahun 2013
Publisher : Jurusan Teknik Kimia, Fakultas Teknik, Universitas Diponegoro,

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Abstract

Abstract Carbon nanotube is one of the nanotechnology that applicated in a variety of science such as electronics, chemistry and etc. In this research staked with system Catalytic Chemical Vapour Deposition (CCVD) process to syntheses Carbon nanotubes from acetylene gas using Co/Al2O3 and Fe/Al2O3 catalysts with catalyst heavy 0,3 gram,operation temperature 700oC, flow rate rasio of N2 and acetylene gas is 1 : 1. From analysis result by Scanning Electron Microscopy (SEM), CNT was formed MWNT type with difference diameter, where in order to larger active component concentration resultant diameter of CNT larger. Whereas product severe sintheses result turn inside out collating with active component. The larger of active component, product weight syntheses result smaller. For Fe/Al2O3 catalyst was given CNT diameter larger compared with CNT syntheses used Co/Al2O3. catalysts.
PENGOLAHAN LIMBAH POME (PALM OIL MILL EFFLUENT) DENGAN MENGGUNAKAN MIKROALGA Riky Yonas; Uray Irzandi; Hantoro Satriadi
JURNAL TEKNOLOGI KIMIA DAN INDUSTRI Volume 1, Nomor 1, Tahun 2012
Publisher : Jurusan Teknik Kimia, Fakultas Teknik, Universitas Diponegoro,

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Abstract

Along with increased produktivity of palm it will be followed increase in wastegenerated. Each palm mill wasted liquid waste known as palm oil mill effluent (POME). POME contains BOD and COD are very high, so it can inhibit the growth of microalgae in the POME. Therefore, comprehensive research is needed to find out a pretreatment step in lowering the content of BOD and COD in POME before being used as a medium for the growth and development of microalgae. Research POME  waste water as a medium of growth and development of microalgae is specifically aimed at studying the treatment process of POME using wild microalgae. The procedure of mixing experiments conducted POME and microalgae erlemeyer fitinto the specified ratio. Research shows that pond IV POME waste can be used as growth wild mikrolga, so it can reduce the levels of BOD and COD of POME waste. Modifiers of variable  are applied  volume of POME ratio of the volume of microalgae and the amount of nutrients provided. Growth of microalgae with a ratio of 1:4 resulting in a reduction of BOD and COD at both the 61.66 ppm and 173.33 ppm from 110.6 ppm and 496.67 ppm. On the effect of nutrient giving C 120 ppm resulted in lower BOD and COD at  the 65.33 ppm and 186.67 ppm, where as the effect  giving nutrient N 40  resulted  lower  and COD   reached 55.41 ppm and 158.33 ppm.
PENGARUH pH DAN RASIO COD:N TERHADAP PRODUKSI BIOGAS DENGAN BAHAN BAKU LIMBAH INDUSTRI ALKOHOL (VINASSE) Gita Khaerunnisa; Ika Rahmawati; B Budiyono
JURNAL TEKNOLOGI KIMIA DAN INDUSTRI Volume 2, Nomor 3, Tahun 2013
Publisher : Jurusan Teknik Kimia, Fakultas Teknik, Universitas Diponegoro,

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Abstract

Industrial waste ethanol, which vinasse is one potential source to be processed into biogas. This study was conducted to assess the potential of vinasse waste and comparison nutrients needed to obtain biogas with optimum results. Experiments conducted in the digester volume 5L, operated at room temperature and neutral pH by varying the ratio of COD: N: P 800:7, 900:7, 1000:7 on vinasse mixture, rumen, urea and vinasse mixture , rumen, and NH4HCO3 within 30 days. Respons which taken from this research are influence of pH, ratio of COD:N and nutrition to biogas production. The optimum condition of pH in producing biogas is at 7. Production of biogas produced at the optimum ratio of COD: N: P 800:7 is equal to 280 ml (0,96 ml biogas/mg TS COD) in a mixture of vinasse, rumen, urea and 3839 ml (13,73 ml biogas/mg TS COD)  in a mixture of vinasse, rumen, NH4HCO3 due to the comparison easier bacteria decompose organic compounds. While vinasse mixture, rumen, and NH4HCO3 produces more biogas than vinasse mixture, rumen, urea may be due NH4HCO3 to maintain the pH range so that the bacteria can survive.
PENGARUH COATING ALGINATE-CHITOSAN TERHADAP PERTUMBUHAN MIKROBA PADA BUAH MELON KUPASAN Heru Cahyana; Marcelinus Christwardana; Nur Rokhati
JURNAL TEKNOLOGI KIMIA DAN INDUSTRI Volume 1, Nomor 1, Tahun 2012
Publisher : Jurusan Teknik Kimia, Fakultas Teknik, Universitas Diponegoro,

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Abstract

Lack of peeling fruit processing now cause the rapid spoilage the fruit. Therefore, most of the industry slows microbial growth by using a coating on the fruit. In this study making edible films made from alginate and chitosan. Edible film also applied to peeling melon and tested the microbial growth during 3 days. The result showed melon which coating with chitosan film is very good because this film can hold up during 2 days with growth of microbe to 21,6 x 105 CFU/gr.
PENERAPAN TEKNOLOGI FLUIDIZED BED DRYER DENGAN PENAMBAHAN ZEOLIT 3A UNTUK MENINGKATKAN EFISIENSIPENGERINGAN GABAH Noor Hidayati; Utami Diah P.; Ratnawati Ratnawati; Suherman Suherman
JURNAL TEKNOLOGI KIMIA DAN INDUSTRI Volume 2, Nomor 4, Tahun 2013
Publisher : Jurusan Teknik Kimia, Fakultas Teknik, Universitas Diponegoro,

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Abstract

Now, drying paddy  using conventional method is irrelevant to used. The need of grain increasing each year is one of the main factor that pushes scientist to invent new methods of drying paddy grain. The old method is unusefull since it takes up space, needed the sun as the drying media which causes a long drying time. One of the alternative of drying paddy grain is by using mechanic dryer. By using this type of dryer, the process of drying takes faster comparing to the old method and the distribution of grain is supplied continuously. The dryer which uses fluidized bed  can be one of the solution due to its less energy consumption, a better drying result and high drying capacity. The variable used to identify drying performance is temperature and loading weight. From the experiment, it is resulted that the best temperature for drying paddy grain is 50 C with the flowrate 3,5 m/s.
PRODUKSI BIOGAS DARI ECENG GONDOK (EICCHORNIA CRASSIPES) : KAJIAN KONSISTENSI DAN pH TERHADAP BIOGAS DIHASILKAN Arnold Yonathan; Avianda Rusba Prasetya; Bambang Pramudono
JURNAL TEKNOLOGI KIMIA DAN INDUSTRI Volume 1, Nomor 1, Tahun 2012
Publisher : Jurusan Teknik Kimia, Fakultas Teknik, Universitas Diponegoro,

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Abstract

Water hyacinth (Eicchornia crassipes) is one of the weeds type which has the fastest growth amongothers, but it can be used in the biogas production because it contains large number ofhemiselulosa. Anaerobic digestion is a process where the microorganism is doing a biodegradablematerial split within the oxygen devoid. The biogas making process begins at cutting up the waterhyacinth, to be added with the water and to be blended with cow dung later. When the mixedsolution is already well-suited with the operation variable, pour it into the pre-treatmentbiodigester by adding the H2SO4 into the (substrat). The process will present the result atcomposition variable, which is showing the largest biogas production at 2:2,5 composition in1.162,97mL, and the smallest biogas production at 2:1 composition in 12,85mL. The bestcomposition from the fermentation process has done before is used as the dependent variable witha pH variable change. The result shows at the pH interval 4 -7, the biogas production isincreasing, and will decrease at the pH 8. The largest biogas production is at the variable pH 7 inthe amount of 1.162,97mL. The GC analysis result shows the metana that contains inside thebiogas is 0,03mol/100gr water hyacinth.

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