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INDONESIA
Jurnal Ilmiah Teknik Kimia
Published by Universitas Pamulang
ISSN : 25490699     EISSN : 2685323X     DOI : -
Core Subject : Science, Engineering,
Chemical Engineering, Chemistry & Bioengineering Chemistry
Fokus dan Lingkup Jurnal i lmiah Teknik Kimia yaitu pengolahan limbah, teknologi pangan dan material, proses pemisahan, teknik reaksi kimia, dan nanopartikel. Jurnal Ilmiah Teknik Kimia Universitas Pamulang terbit 2 kali dalam setahun yaitu pada bulan Januari dan Juli.
Arjuna Subject : -
Articles 122 Documents
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Synthesis of Shielding Radiation Neutron Materials Made from Wood Powder With Variation of Borax Content Rohmad Salam; Agus Salim Afrozi
Jurnal Ilmiah Teknik Kimia Vol 5, No 1 (2021): JURNAL ILMIAH TEKNIK KIMIA
Publisher : Program Studi Teknik Kimia, Universitas Pamulang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32493/jitk.v5i1.6485

Abstract

Synthesis of Shielding Radiation Neutron Materials Made from Wood Powder with Variation of Borax Content has been carried out as a shield of neutron radiation. The material used as a neutron shield is wood powder added 10%, 20%, 30% and 50% borax with variations in the thickness of each 5 mm, 10 mm, 15 mm, which previously saw wood powder milled with HEM (High Energy Milling ) for 1 hour and mixed with borax using HEM (High Energy Milling) for 1 hour and compacted using a diameter of 25.4 mm with a pressure of 2000 Psi. The results of observations with optical microscopes show that the spread of borax which is less evenly distributed may be due to the type of borax that is used in wood blends that have properties that quickly clot and cannot be evenly mixed with wood. The results of the compressive test using a Universal Tensile Machine tool produced strong for 224 N wood and in the mixture of 50% borax wood which was closest to the strength of wood which was equal to 172 N
Penggunaan Limbah Kulit Singkong pada Filter Air Sederhana Skala Rumah Tangga Ihat Solihat; Agustina Dyah Setyowati
Jurnal Ilmiah Teknik Kimia Vol 5, No 1 (2021): JURNAL ILMIAH TEKNIK KIMIA
Publisher : Program Studi Teknik Kimia, Universitas Pamulang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32493/jitk.v5i1.8639

Abstract

Cassava (Manihot utillisima) is a staple food for Indonesians after rice and corn. Cassava is a natural product (product) which is abundant in Indonesia, especially in the areas of Central Tawa and West Java. Activated carbon is a porous material derived from carbon material by combustion or thermal decomposition. Activated carbon is widely used for water purification, medicine, waste treatment and as a filter in compressed air (Lam et al., 2017). The purpose of this research is the quality of activated charcoal from cassava peel absorption capacity of activated carbon from cassava peels as a water filter, especially for removal of Cu (II) metal with a variety of activators and the optimum duration of contact with the use of activated carbon in a simple home scale water filter. The results showed that the quality of activated charcoal from coffee grounds which includes the quality of yield, moisture content, ash content and absorption of iodine has met SNI No.06-3730- 1995 Activated Charcoal Quality Standards. The higher the concentration, the greater the absorption of activated charcoal on Cu (II) metal, and from the variation data the most optimal activator is activated charcoal with a KOH activator of 0.3 m. The results of boxing the activated charcoal within 5 hours with an average yield of 0.1898 mg per liter meet the clean water standards, namely according to the 2008 East Java Regional Regulation which states that the Cu content in water is at a threshold of 0.2 mg per liter.   
Screening and Isolation of H2S Decrease Microba for Biogas Purification from POME On Biogas Power Plant agustina dyah setyowati; Joni Prasetyo
Jurnal Ilmiah Teknik Kimia Vol 4, No 2 (2020): JURNAL ILMIAH TEKNIK KIMIA
Publisher : Program Studi Teknik Kimia, Universitas Pamulang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32493/jitk.v4i2.6464

Abstract

Biogas is a renewable alternative energy that can be produced from POME (Palm Oil Mill Effluent). Biogas consists of Methane (CH4), Carbon Dioxide (CO2) and a small amount of Hydrogen Sulfide (H2S) while Nitrogen (N2) and Oxygen (O2) are usually from the remaining air composition analyzed in the sample. In biogas, Hydrogen Sulfide consists more than 1200 ppm can cause corrosive so it is often a problem in the surrounding environment because it can damage equipments. A way to reducing H2S is by microbiological processes using microorganisms such as Thiobacillus. Thiobacillus is a chemototrophic bacteria that is able to decompose toxic into non-toxic chemical compounds. This research was carried out in several stages, namely: microbial screening process gas of H2S, isolation of potential microbial media containing sulfur NaHS, data analyst using Sulfur Analyzer. The process of isolation and screening of Indonesian microbes (indigeneous) uses conventional isolation methods, namely isolation using the process level with isolation stage: the first stage is sampling from nature, the second stage of dilution of samples in sterile water, the third stage of  storage for agar media, the fourth stage of mixing in samples of petri dishes, the fifth stage of incubation and the last stage of examination of incubation results.While for microbial separation using the agar scraping method. 
Maksimasi Produk Avtur Dengan Pengaturan Cutting Point Di Kolom Fraksinasi Unit Hydrocracking Complex Zami Furqon; Rediansyah Tito Bisono; Sinung Bayu Nugroho
Jurnal Ilmiah Teknik Kimia Vol 5, No 2 (2021): JURNAL ILMIAH TEKNIK KIMIA
Publisher : Program Studi Teknik Kimia, Universitas Pamulang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32493/jitk.v5i2.12069

Abstract

Fractionator in the HCC Unit, is a type of atmospheric distillation process that processes types of oil from various sources such as HVGO and HCGO at the HCC Unit to obtain products in the form of LPG, light naphtha, heavy naphtha, Light Kerosene, Heavy Kerosene, diesel and Net Bottom Fractionation. Changes in Cutting Point on Heavy Kerosene products will have an impact on changes in Heavy Kerosene yield and operating conditions on the fractionation column, namely the Heavy Kerosene draw tray. A decrease in the Cutting Point between Heavy Kerosene and Diesel by 5 °F can increase the yield of Heavy Kerosene products to reach 0.78% volume on crude or 1.57 m³/hour. That is, the temperature of the Heavy Kerosene draw tray is 224°C. This is done in order to reduce the cutting point temperature of Heavy Kerosene which can increase the yield of Heavy Kerosene products.
Modifikasi Pembuatan Tahu Dengan Penggunaan Lama Perendaman, Lama Penggilingan dan Penggunaan Suhu dalam Upaya Meningkatkan Kualitas Produk Tahu Didik Iswadi
Jurnal Ilmiah Teknik Kimia Vol 5, No 1 (2021): JURNAL ILMIAH TEKNIK KIMIA
Publisher : Program Studi Teknik Kimia, Universitas Pamulang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32493/jitk.v5i1.7008

Abstract

In making tofu today, consuming energy for the tofu making process requires a large amount of energy. So that research must be able to choose the minimum energy use in the process of making tofu. Tofu has a short shelf life and quickly becomes rotten. The purpose of this study was to determine the best tofu making in terms of the use of variations in soaking time, boiling temperature and stirring time, knowing the best quality of tofu in terms of moisture content, protein content and texture of tofu products, knowing the value of tofu content from using variations in soaking time boiling temperature and stirring time. The quantitative method is taken from the analysis of water content, protein content, and tofu texture. The following is how to make tofu as follows, 1 kg of soybeans, washed sufficiently then soaked first, the soybeans are then milled with a special machine with 7 liters of raw water, heated, then stirred slowly, then take the clotted tofu with a scoop then put it in the mold and pressed or pressed, let stand until slightlycool, the last tofu is ready to be consumed. The result of modification test in making tofu that has the best value from the use of soaking time, grinding time, and temperature variation is sample 2 with a soaking time of 3 hours, 10 minutes of grinding time and a temperature variation of 80°C with a moisture content value of 82.17%, protein 11.61% and texture values of 6,44 N and 5,45 N.
Kinetika Adsorpsi Zat Warna Direct Brown Menggunakan Hidroksiapatit Dengan Variasi Dosis Adsorben dan pH Larutan Ulfi Rahayu
Jurnal Ilmiah Teknik Kimia Vol 5, No 1 (2021): JURNAL ILMIAH TEKNIK KIMIA
Publisher : Program Studi Teknik Kimia, Universitas Pamulang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32493/jitk.v5i1.7390

Abstract

Adsorption is a dye absorption process using various adsorbents. Dye waste produced by industry can pollute the environment because it is dangerous and poisonous. In this study, calcium-deficient hydroxyapatite with a Ca / P ratio of more / less than 1.67 was used as the adsorption medium. Utilization of the adsorption process in dye absorption is useful for determining isotherm models and adsorption kinetics. The dye used is direct brown. The dye adsorption process was carried out at variations in pH (6, 7, 8) and adsorbent mass (0.1; 0.15; 0.2 wt%) at a rotating speed of 250 rpm and 30 ppm of dye concentration. The maximum adsorption capacity occurs at pH 6 with an absorption efficiency of 51.4%. The equilibrium model tested is the Langmuir, Freundlich, Harkins Jura, Temkin equilibrium model. and Dubinin-Raduskevich. The isotherm model of the direct brown dye adsorption process follows the Temkin model with a R2 value of 0.9996. The adsorption kinetics tested were Pseudo First Order, Pseudo Second Order, Elovich and Intraparticle Diffusion. The kinetics of the direct brown dye adsorption process followed the intraparticle diffusion order kinetics model with R2 value of 0.9938 in the adsorption process with a pH of 6 and an adsorbent mass of 0.5 grams.
Penetapan Kadar Fe Gluconate dengan Metode Fe Fumarate Secara Spektrofotometri UV-Vis Rhahmasari Ismet; Bella Kavalena Raeis; Sriwulan Sriwulan
Jurnal Ilmiah Teknik Kimia Vol 6, No 1 (2022): JURNAL ILMIAH TEKNIK KIMIA
Publisher : Program Studi Teknik Kimia, Universitas Pamulang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32493/jitk.v6i1.15669

Abstract

The human frame requires macroelements and microelements. The system of blood formation is the synthesis of hemoglobin. Iron is a totally crucial microelement and is needed by using the body. one of the iron dietary supplements that may be consumed to save you and deal with iron deficiency is Ferrous Gluconate. Ferrous Fumarate and Ferrous Gluconate have the same function, but there are variations in the analytical method of assay. The purpose of this observation is to validate the method for figuring out the concentration of Fe Gluconate compounds in drug samples, while the approach used is UV-Vis spectrophotometry. approach validation turned into achieved earlier than assaying the pattern. Parameters within the validation technique used include specificity, device suitability, linearity, accuracy, precision, and LOD and LOQ. The consequences of the validation of the analytical approach showed precise results with the RSD acquisition of all test parameters acquired via a fee of < 2%. The values for the quantitation restrict (LOQ) and detection limit (LOD) additionally showed precise consequences, the LOD acquired became 6.920 ppm and the LOQ received changed to 23.067 ppm. in step with the meals and Drug management in 2001, the outcomes of the validation of the analytical approach on this study have met the standards and specifications, because numerous test indicators have met them. so that this method can be utilized in determining the levels of Fe Gluconate. dedication of Fe Gluconate degrees in drug samples obtained consequences with a median cost of 99.770%.
Pengaruh Jumlah Ekstraksi Bertingkat Terhadap Yield Antosianin pada Kulit Buah Naga Merah (Hylocereus polyrhizus) Siti Khuzaimah; Nuril Millati
Jurnal Ilmiah Teknik Kimia Vol 6, No 1 (2022): JURNAL ILMIAH TEKNIK KIMIA
Publisher : Program Studi Teknik Kimia, Universitas Pamulang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32493/jitk.v6i1.13199

Abstract

Dragon fruit skin has a very attractive red color that has the potential to produce anthocyanin pigments. Anthocyanin pigments are flavonoid compounds that are soluble in water and can be used as natural dyes in food and beverages. The purpose of this study was to see the effect of the number of multilevel extraction on the anthocyanin yield of dragon fruit peel extraction. 20 grams of dragon fruit peel powder with a mesh size of 20 was extracted in batches for 72 hours at room temperature using a mixture of distilled water and 10% citric acid (1:6) as a solvent. Variations in the number of stratified extractions were 1,2,3,4 and 5 times of extraction with the number of solvents respectively 500, 2 x 250 ml, 3 x 167 ml, 4 x 125 ml, and 5 x 100 ml. analysis of anthocyanin pigment levels using a spectrophotometer with a different pH method. The results obtained that the anthocyanin yield with samples 1 to 2 times of extraction increased by 6.35%, while the anthocyanin yield of samples 1 to 5 times of extraction increased by 35.65%. The highest yield of anthocyanin pigments was 4.1625 mg/20 grams in a multilevel extraction carried out for 5 times of extraction.
Pembuatan dan Karakterisasi Teh Herbal Penurun Gula Darah dari Buah Mahkota Dewa dan Bunga Telang Zakki Rosmi Mubarok; Nur Rohmah; Nurul Istiqomah Kusmuldayinah
Jurnal Ilmiah Teknik Kimia Vol 6, No 1 (2022): JURNAL ILMIAH TEKNIK KIMIA
Publisher : Program Studi Teknik Kimia, Universitas Pamulang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32493/jitk.v6i1.16475

Abstract

This study was conducted to compare the saponin contents and understand the characterization of herbal teas from the Mahkota Dewa fruit and the Telang flower for reducing blood glucose. The method of processing the of the Mahkota Dewa fruit and the flower of the telang into herbal teas is by gradually drying in the oven at a temperature of 110°C for 30 minutes and 70°C for 1 hour, then did size reduction and put into tea bags weighing 2.5 g per bag for 100 ml of water. The results showed that Mahkota Dewa tea had a higher saponin content of 14.4% and a water content of 6.5% more than the Telang flower with a saponin content of 5.6% and a moisture content of 5%. The results of the hedonic test analysis with  ANOVA showed that there was a significant difference between the two herbal teas in terms of color but there was no significant difference in terms of taste and aroma. In general, the Mahkota Dewa fruit tea and Telang flower tea were accepted by the panelists on a scale of 3-5 (neutral-very like). For 7 days, the pH of the steeping of Mahkota Dewa tea and Telang flower tea increased from pH 6 to 9. The results of the life test of Mahkota Dewa fruit tea and Telang flower tea can be kept for three days at cold temperatures (10°C–4°C) and one day for room temperature (20°C-25 °C).
Variation of Time and Ethanol Solvent Concentration Of Kinetic Maceration Tannin Extraction From Aromatic Areca Catechu Hibrah Hibrah; Ferry Ikhsandy; Agung Kurnia Yahya; Rosalina Rosalina
Jurnal Ilmiah Teknik Kimia Vol 6, No 1 (2022): JURNAL ILMIAH TEKNIK KIMIA
Publisher : Program Studi Teknik Kimia, Universitas Pamulang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32493/jitk.v6i1.14180

Abstract

Aromatic areca catechu is one of the main agro commodities in West Sumatra. It contains tannin which are valuable compounds that are widely used in the textile industries, leather product manufacturing, or furniture industries. Utilization of tannin extraction from the aromatic betel nut is expected to increase its economic value. This study aims to extract tannin through kinetic maceration methods by varying the maceration duration of 1,2,3,4, and 5 hours; and varying the solvent concentration of ethanol 35%, 50%, 65%, 80%, and 96%. The scented areca nut powder used has a mesh size of e” 20, the stirring speed 450 rpm and the temperature kept constant at 45 oC. The extraction results were then concentrated and tested by UV-Vis spectrophotometric analysis with a standard solution of tannic acid. Optimal yield value is 3.750%  identified at maceration length of 2 hours with a solvent concentration of 65% ethanol.

Page 7 of 13 | Total Record : 122

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