cover
Article Per Year (5 Year)
All
Home Page
OAI Link
Editorial Team
Contact
Reviewer
Google Scholar
Contact Name
-
Contact Email
-
Phone
-
Journal Mail Official
-
Editorial Address
-
Location
Kota semarang,
Jawa tengah
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 44 Documents
 1   2   3   4   5 
Search results for , issue "Volume 2, Nomor 2, Tahun 2013" : 44 Documents clear
EKSTRAKSI DAUN SIRSAK (ANNONA MURICATA L) MENGGUNAKAN PELARUT ETANOL Galih Prihasetya Hermawan; Hendrawan Laksono; Indro Sumantri
JURNAL TEKNOLOGI KIMIA DAN INDUSTRI Volume 2, Nomor 2, Tahun 2013
Publisher : Jurusan Teknik Kimia, Fakultas Teknik, Universitas Diponegoro,

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (214.782 KB)

Abstract

Soursop (Annona muricata L) is one of fruit that originated from Caribbean, middle America and south America. Acetogenins contain in the soursop especially in the leaves. Acetogenins is polyketides compound with structure straight carbon chain 30-32 that bounded with group 5-methyl-2-furanone. Furanone chain in the group of hydrofuranone have cytotoxic activity. One of the problem in the usage of soursop leaves extract is lack of efficiency of the solvent. This research have purpose to know affected variable and determined operation condition optimum in the extraction with maseration method of cytotoxic substance from soursop leaves. This research was engineered with factorial design method with 2 level and 4 independent variables which are drying material with and without drying, extraction time 1 and 2 days, samples mass 4 and 7 grams, fractination solvent etanol and n-hexane. The dependent variables are extraction’s volume solvent 200 ml, extraction temperature 28oC (room condition), and etanol solvent. The 4 independent variables give positive result / increases fenol level and the most affected variables are drying, samples mass, and extraction time. Optimum condition in the extraction process are 7 grams of weight, with drying process, and extraction time 2 days.
KONVERSI ASAM SIANIDA MENJADI PROTEIN DALAM TEPUNG UBI KAYU DENGAN FERMENTASI MENGGUNAKAN Rhizopus oligosporus Ferry Nanda Ardhianto; Mayang Gitta Pawitra; Siswo Sumardiono
JURNAL TEKNOLOGI KIMIA DAN INDUSTRI Volume 2, Nomor 2, Tahun 2013
Publisher : Jurusan Teknik Kimia, Fakultas Teknik, Universitas Diponegoro,

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (105.478 KB)

Abstract

Tepung ubi kayu merupakan salah satu alternatif tepung yang dewasa ini sering ditemukan di pasaran. Tepung ubi kayu adalah hasil fermentasi dengan bahan baku ubi kayu yang diolah lebih lanjut menjadi tepung. Namun, tepung ubi kayu umumnya mempunyai residu glukosa siaongenik yang tinggi yaitu sebesar 62 mg (Adindu, M.N, 2003) yang memiliki kecenderungan sebagai racun. Pada penelitian ini, sianida terikat dikurangi kadarnya dengan mengkonversikannya menjadi protein dengan bantuan kapang Rhizopus oligosporus. Sedangkan sianida terlarut di hilangkan dengan bantuan perendaman dengan larutan  garam serta larutan buffer. Selain itu, larutan buffer juga mengontrol pH menjadi kisaran netral, karena pada range ini sianida terikat menjadi lebih mudah untuk terkonversi. Tujuan penelitian ini adalah untuk mengetahui seberapa besar pengaruh perlakuan kombinasi perendaman dengan garam, perendaman dengan larutan buffer serta fermentasi dengan Rhizopus oligosprus terhadap kadar asam sianida dan kadar protein yang tersisa di dalam tepung ubi kayu. Variabel yang dipelajari antara lain %berat Rhizopus oligosporus, lama waktu fermentasi (12 jam sampai 72 jam) dan perbedaan bentuk ubi kayu saat fermentasi yaitu chips dan parutan. Dari penelitian didapat hasil bawah kadar sianida terendah diperoleh dari fermentasi selama 72 jam pada media ubi kayu parut. Sedangkan kadar protein tertinggi diperoleh dari fermentasi dengan media ubi kayu chips.
KARAKTERISTIK PENURUNAN FLUKS PADA FILTRASI LARUTAN HUMIC ACID DENGAN MEMBRAN MIKROFILTRASI A Ardiansyah; Ario Budi Kusumo; I Nyoman Widiasa
JURNAL TEKNOLOGI KIMIA DAN INDUSTRI Volume 2, Nomor 2, Tahun 2013
Publisher : Jurusan Teknik Kimia, Fakultas Teknik, Universitas Diponegoro,

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1195.027 KB)

Abstract

Natural surface water is containing various organic matter. One of them is Humic Acid (HA) which is known as the major cause of fouling in membrane filtration, and proved carcinogenic to human body. This study is carried to characterize flux reduction of HA filtration with Microfiltration Membrane. The analysis in the research is carried out by flux and absorbancy measuring. From this study the following conclusion can be taken; highest flux reduction are detected in the first 5 minutes of operations then slows down in the 15th minutes and later, where higher the HA solution concentration, will result in higher flux reduction. With the HA 5 ppm and HA 25 ppm’s J/Jw in 0,49 and 0,25, respectively in the 120th minutes. The addition of ion CaSO4 slows the rate of flux reduction, where it shows J/Jw of 0,051in the 120th minute. For filtration in different pressure, higher the pressure will result ini higher rate of flux reduction too., While in filtration of HA solution in different pH, highter the pH will result in the lowering the rate of reduction of flux. In the addition of ozone injection, the experiment carried shows that ozone addition is not giving any significant change on flux reduction.
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 2, Nomor 2, Tahun 2013
Publisher : Jurusan Teknik Kimia, Fakultas Teknik, Universitas Diponegoro,

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (905.616 KB)

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.
PEMBUATAN KATALIS H-ZEOLIT DENGAN IMPREGNASI KI/KIO3 DAN UJI KINERJA KATALIS UNTUK PRODUKSI BIODIESEL Lukman Hakim Firdaus; Adit Rizky Wicaksono; W Widayat
JURNAL TEKNOLOGI KIMIA DAN INDUSTRI Volume 2, Nomor 2, Tahun 2013
Publisher : Jurusan Teknik Kimia, Fakultas Teknik, Universitas Diponegoro,

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (216.498 KB)

Abstract

H-Zeolite catalysts synthesized from natural zeolite include chemical treatment process stages, screening, washing, impregnation KI/KIO3 and physical treatment. The objective of this research is to study characteristics of catalyst that was impregnated KI / KIO3 with surface area analysis, X-Ray Diffraction (XRD) and performance test of catalyst for production of biodiesel. The results showed that the surface area of ​​the catalyst by 27.236 m2/ g at a concentration of 5% KI. XRD analysis of the value obtained at 2-θ peak at 23.627o zeolite indicating that KI was impregnated on H-zeolite catalyst. The catalyst was tested for production of biodiesel using palm oil with conventional methods for 3-hour temperature of 70-80oC. The Result for conversion Fatty Acid Methyl Ester (FAME) had maximum value on 87.91% at a concentration of catalyst impregnation variable KIO3 5%.
PEMANFAATAN MINYAK GORENG BEKAS MENJADI DETERGEN ALAMI MELALUI KOMBINASI REAKSI TRANS-ESTERIFIKASI DAN SULFONASI Aga Aulia Rahman; Galih Satrio Lelono; Mohamad Djaeni
JURNAL TEKNOLOGI KIMIA DAN INDUSTRI Volume 2, Nomor 2, Tahun 2013
Publisher : Jurusan Teknik Kimia, Fakultas Teknik, Universitas Diponegoro,

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (279.594 KB)

Abstract

Deterjen adalah produk yang banyak digunakan oleh masyarakat untuk membersihkan pakaian. Mengingat efek buruk detergen sintetis bagi alam yaitu susah terdegradasi oleh alam, maka perlu di cari inovasi pengganti bahan pembuatan detergen yang ramah lingkungan dan juga pengurangan limbah minyak goreng bekas yang cukup melimpah. Dengan dilakukannya studi ini diharapkan dapat mengetahui kondisi optimum pembuatan detergen alami dari minyak goreng bekas dengan teknologi tepat guna, serta mengetahui variabel yang berpengaruh dalam pembuatannya. Penelitian dilakukan dengan memproduksi Metil ester sulfonat (MES) sebagai bahan aktif dalam detergen dengan proses kombinasi trans-esterifikasi dan sulfonasi dengan bahan baku minyak goreng bekas yang selanjutnya di pelajari kondisi operasi dalam pembuatan detergen alami dari MES yang di campurkan bahan lain sebagi komposisi detergen tersebut. Penelitian ini mengkaji suhu operasi, %zeolit, dan kecepatan pengadukan sehingga di dapat kondisi operasi optimum dalam pembuatan detergen alami dari minyak goreng bekas. Variabel tetap yang digunakan dalam penelitian ini adalah volume MES sebanyak 100ml, berat CMC sebanyak 20%, berat soda ash sebanyak 45%, dan jenis bahan penunjang yaitu zeolit Na . Sedangkan variabel berubahnya adalah suhu operasi pada 60oC, 80oC dan 100oC, % zeolit sebanyak 10%, 20%, dan 30%, serta kecepatan pengadukan 120 rpm, 180 rpm dan 240 rpm.  Hasil penelitian menunjukkan bahwa kondisi optimum pada suhu 105°C, kecepatan pengadukan 260 rpm, dan % zeolit sebanyak 32% sehingga menghasilkan daya detergensi sebesar 46% mendekati daya detergensi surfaktan LAS murni sehingga detergen dari minyak goring bekas ini layak di gunakan. Variabel bebas yang paling berpengaruh adalah kecepatan pengadukan, di ikuti oleh %zeolit kemudian suhu.
OPTIMASI PENAMBAHAN NUTRIEN TERHADAP KADAR PROTEIN PADA FERMENTASI PADAT KULIT UMBI UBI KAYU MENGGUNAKAN RESPONSE SURFACE METHODS (RSM) Erna Juliarti; Iis Alfaizah
JURNAL TEKNOLOGI KIMIA DAN INDUSTRI Volume 2, Nomor 2, Tahun 2013
Publisher : Jurusan Teknik Kimia, Fakultas Teknik, Universitas Diponegoro,

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (346.9 KB)

Abstract

Cassava is tropic and subtropic tree from  Euphorbiaceae family and Manihot esculenta as binomial name. The aims of fermentation of cassava peel to decrease of agroindustry waste and used for animal feed. The waste from agroindustry contain carbohydrate and little protein. To reduce the waste needed fermentation process to enriched protein content using saacharomyces cereviceae. This experimental using cassava peel was drying at the first. The experimental design used was 23 full  factorial central composite design with 18 run was consist of 8 run on second level (-1/+1), 6 run star points (-1.68/+1,68), and 4 run replication on centre points (0). The data was obtain analyzed using Respons Surface Methods (RSM) to know optimum condition such as: vitamin B1 total, water content, and C/N ratio on solid state fermentation of cassava peel. The result shown that maximum yield of protein reached at 36.40 % with vitamin B1 at 0.0100 %, water content at 65 %, and C/N ratio at 15. The value of cyanide acid also decrease from 0.024 % to 0.009 % after 6 days fermentation process.
PEMBUATAN BIOETANOL DARI SINGKONG KARET (Manihot glaziovii) UNTUK BAHAN BAKAR KOMPOR RUMAH TANGGA SEBAGAI UPAYA MEMPERCEPAT KONVERSI MINYAK TANAH KE BAHAN BAKAR NABATI Mira Amalia Hapsari; Alice Pramashinta; Aprilina Purbasari
JURNAL TEKNOLOGI KIMIA DAN INDUSTRI Volume 2, Nomor 2, Tahun 2013
Publisher : Jurusan Teknik Kimia, Fakultas Teknik, Universitas Diponegoro,

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1201.81 KB)

Abstract

Manihot glaziovii is a tuber that non-food corps, because it contains cyanide acid (HCN) which are toxic. Carbohydrate content in cassava tubers is 98,5% so it is worth to be converted to bioethanol. Bioethanol is a product of hydrolysis of starch to glucose, followed by enzymatic fermentation of glucose using yeast Saccharomyces cereviceae to ethanol. The purpose of this study is to find the optimum time and mass effect on of yeast to produced ethanol as a fuel household stoves. The research was carried out in several stages, including the enzymatic hydrolysis of cassava starch to glucose and continued fermentation of glucose to ethanol. Bioethanol purification is done by distillation process. The main tool that used is fermentor and distillation tower as a means of separating ethanol from water. Analysis of glucose levels is done by titration using Fehling A and B, while the ethanol concentration measurements with alkoholmeter. The results showed that the optimum volume was 3 mL enzyme that produces glucose level of 18% which is good for fermentation. The results that have been achieved for the fermentation time variable 144, 168 and 192 hours earned the highest ethanol content is 94% at 168 hours fermentation time, while for variable mass 5.10 yeast, and 15 g obtained the highest ethanol content is 94% in mass yeast 15 gr.
MODIFIKASI TEPUNG DARI UMBI GADUNG MENGGUNAKAN EKSTRAK RIMPANG JAHE SEBAGAI BAHAN MAKANAN FUNGSIONAL S Siswanto; Thamrin Manurung; Catarina Sri Budiyati
JURNAL TEKNOLOGI KIMIA DAN INDUSTRI Volume 2, Nomor 2, Tahun 2013
Publisher : Jurusan Teknik Kimia, Fakultas Teknik, Universitas Diponegoro,

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (4415.811 KB)

Abstract

This research aims to study the modification of gadung (Dioscorea hispida Dennst) flour using ginger oil as cross linking agent following dispersion methods to meet the standards of the physicochemical properties of wheat. In keeping with that purpose, will be investigated the influence of molar ratio of ginger oil with of gadung flour (1:2 and 1:3), reaction time (30, 60, 90 and 120 minutes) and temperature (30, 40 and 50oC) on water solubility and swelling power  properties of the modified gadung flour. This research begins by mixing the suspension of gadung flour and ginger oil on the condition appropriate to the variable, then the product was dried and analyzed the swelling power and water solubility. Ratio of Ginger oil : gadung flour (1:3) with a temperature at 30oC and 60 minutes is the best condition of modification obtained from this study, where the modified gadung flour obtained has a very similar water solubility and swelling power properties with American wheat flour, which were 7.28 (g/100g) and 7.9 (g/g), respectively.The weakness of modified gadung flour was only  the presence of the remaining ginger aroma.
ISOLASI DEKSTRIN DARI PATI SORGUM DENGAN PROSES HIDROLISA PARSIAL MENGGUNAKAN ENZIM α-AMILASE Hanafi Avika Zadha; Wahyu Raharjo
JURNAL TEKNOLOGI KIMIA DAN INDUSTRI Volume 2, Nomor 2, Tahun 2013
Publisher : Jurusan Teknik Kimia, Fakultas Teknik, Universitas Diponegoro,

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (135.558 KB)

Abstract

Starch is widely used in food industry, Native usage cause some problems related to retrogradiation, syneresys, low stability, and low paste resistance due to pH and temperatures changing. That was the reason why starch modification is done by physical, chemical, and enzymatic treatment. This modification is intended to increase the added value of sorghum flour also fixing the properties and characteristic. The aim of this research are to investigate various variabeles which  influence in hydrolysis of dextrin. The isolation of dextrin include in three step, (1) preparation, (2) dextrinization (dextrin formation), and (3) product analysist. Dextrin formation consist of two phase, there are gelatinization and liquefaction phase which is done by mixing in certain time. Control variables in this research include: operation temperatures, string speed, CaCl2 need, and enzyme concentration. Independent variables such as Operation time (60;90;120 minutes), pH and Concentration starch (12; 15; 18; 21; 24 %w/v). Product are then analysed by calculating Dextrose Equivalent (DE), The Yield, Swelling power analysis and % solubility.

Page 4 of 5 | Total Record : 44

 1   2   3   4   5 

Filter by Year

2013 2013


Reset
Filter By Issues
All Issue Volume 2, Nomor 4, Tahun 2013 Volume 2, Nomor 3, Tahun 2013 Volume 2, Nomor 2, Tahun 2013 Volume 1, Nomor 1, Tahun 2012