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Journal of Chemical Process and Material Technology

JCPMT
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Published by Universitas Wahid Hasyim Semarang

ISSN : 28282221 EISSN : 28280199 DOI : http://dx.doi.org/10.36499/jcpmt

Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Engineering Materials Science & Nanotechnology

Journal of Chemical Process and Material Technology invites contributions of original and novel fundamental research publishes papers. The journal is open to contributions in the following areas, focusing on chemical process and material processing technology in chemical engineering, environmental engineering, food engineering, biotechnology and materials science and engineering. As well as original research, Journal of Chemical Process and Material Technology also publish review articles that examine the state of the art, identify emerging trends, and suggest future directions for developing fields

Arjuna Subject : Teknik Kimia (semua kategori) - Kimia Proses dan Teknologi

Articles 13 Documents

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MODIFICATION OF LINDUR STARCH (Bruguiera Gymnorrhiza L.) BY OXIDATION USING SODIUM HYPOCLORITE AND FERRO SULPHATE CATALYST Lucia Hermawati Rahayu; Sri Sutanti; Mumpuni Asih Pratiwi; Rahelia Cahyaningtyas
Journal of Chemical Process and Material Technology Vol 1, No 2 (2022)
Publisher : Universitas Wahid Hasyim

Lindur fruit (Bruguiera gymnorrhiza L.) is widely available in Indonesia and has a high carbohydrate content, so it has the potential to be developed as a new source of energy and starch. So far, the use of lindur fruit is still limited to substitute rice and snacks. Therefore, it is necessary to make efforts to increase the utilization of lindur fruit by processing it into lindur starch and its derivatives (modified starch). The properties of lindur starch need to be improved in order to have wider uses in the food and non-food industries. The purpose of this study was to modify lindur starch by oxidation using NaOCl with ferrous sulfate as a catalyst. In this study, the effect of sodium hypochlorite concentration (2%, 4%, 6%, and 8%) and ferrous sulfate concentration (0%, 0.1%, 0.2%, and 0.3%) on the physicochemical characteristics of starch was studied. the resulting oxidized leachate and determined the optimal conditions. The results showed that all the variables studied affected the oxidation reaction of lindur starch. Oxidation at 4% NaOCl concentration and 0.2% ferrous sulfate concentration was able to produce the best values for carboxyl content, solubility, and swelling.

CHARACTERIZATION TEST OF BINAHONG (ANREDERA CORDIFOLIA (TEN.) STEENIS.) LEAVES AND ALOE VERA (ALOE VERA) LEAVES EXTRACTS USING INFUDATION METHOD IN MAKING LIQUID FOR EXTERNAL WOUND HEALING Ahmad Shobib; Priyono Kusumo; Nurul Millah
Journal of Chemical Process and Material Technology Vol 1, No 1 (2022)
Publisher : Universitas Wahid Hasyim

Binahong leaves and aloe vera leaves contain flavonoid compounds and saponin compounds that can help the wound healing process, therefore a liquid medicine for external wound healing is made from extracts of binahong leaves and aloe vera leaves. The process of making liquid medicine begins with the manufacture of binahong leaf extract using binahong leaves carried out by the infundation method. The infundation method was carried out through an extraction process using distilled water at a temperature of (80-90)oC for 15 minutes. The results of the hypothesis show that at a temperature of (80-90)oC for 15 minutes there are no variables that affect the manufacture of binahong leaf extract. The binahong leaf extract and aloe vera were mixed according to the specified formula. The formulation used was the ratio (binahong leaf extract: aloe vera leaf) = 1:1 as formula A; 1:2 as formula B; 2:1 as formula C; 1.5:1 as formula D and added alcohol in the ratio (alcohol: a mixture of binahong leaf extract and aloe vera leaf) 1:4 to prevent oxidation. The preparation obtained is liquid so that it is easier to apply. The test results showed that the external wound healing liquid formulation with a volume ratio of aloe vera leaf extract and binahong 2:1 (Formulation C = 1.8467%) showed a high flavonoid content compared to formulas A, B, or D. The chosen method is that every 1 L of external wound healing liquid medicine consists of 536 ml of binahong leaf extract, 268 ml of aloe vera leaf extract, 201 ml of 70% alcohol from the total volume

Polymerization of Poly Methyl Methacrylate Using Emulsion Method and H2O2 as Initiator Sari Purnavita; Cyrilla Oktaviananda; Sri Sutanti; Herman Yoseph Sriyana; Antonius Prihanto; Antonio Mafeli
Journal of Chemical Process and Material Technology Vol 1, No 2 (2022)
Publisher : Universitas Wahid Hasyim

This study aims to study the effect of the amount of initiator (H2O2) on the viscosity of the Polymethyl Methacrylate (PMMA) emulsion and the solids content. The treatment of independent variables is H2O2 by 1%, 2%, 3%, and 4%. This research procedure was carried out in a two-stage process. The first stage is the process to separate the inhibitor contained in the methyl methacrylate monomer by adding a 1 N concentration of NaOH solution, stirring until evenly distributed, then put into a separating funnel to separate pure methyl methacrylate from the inhibitor dissolved in alkaline solution. The second stage is the polymerization reaction process using the emulsion method. Dissolve the poly vinyl alcohol in hot water at 70oC, put the poly vinyl alcohol solution into a three-neck flask, which is equipped with a stirrer and a hot plate heater, add the initiator and up to 60oC, then add the methyl methacrylate monomer with stirring and heating at room temperature 100oC for 1 hour. The resulting product is a thick poly methyl methacrylate emulsion, has a milky white color, and has good adhesion. Furthermore, the viscosity test was carried out using ford cup number 4 and the solids content test. The results showed that the more initiators added, the higher the viscosity and the higher the solids content.

Mechanical Properties of Injection Molded Recycled High Density Polyethylene (rHDPE) Blends with pellets Low Density Polyethylene (pLDPE) Muhammad Dzulfikar; Sri Mulyo Bondan Respati; Muhammad Nasikin
Journal of Chemical Process and Material Technology Vol 1, No 1 (2022)
Publisher : Universitas Wahid Hasyim

Recycling polymer has become a mandatory for sustainable development goals, life beyond water and land. Therefore, recycled polymer blends containing rHDPE/pLDPE (high density polyethylene and low density polyethylene) with composition 100/0, 80/20, 70/30, 50/50, 40/60, 30/70, and 0/100 have been prepared by melt compounding method using injection molding at 200 oC. Tensile testing shows that there is strong combination between rHDPE/rLDPE blends. Elongation at break differ from 122-230% and density test give results around 1.1 g/cm3. Injection molding process with the proper temperature setting and mixing of crushed plastic also affects the ductility, flexibility, brittleness and hardness of the specimen

THE MICROBIAL GROWTH INHIBITION PROFILE OF SELECTED INDONESIAN SPICES ESSENTIAL OILS ON TOFU DURING 8-DAY STORAGE Alwani Hamad; Asmiyenti Djalisrin Djali; Dianita Yulia Sukma Dewi; Eka Yuliani Saputri; Eli Nurlaeli; Intan Nur Fadlilah; Muliastri Mentari; Dwi Hartanti
Journal of Chemical Process and Material Technology Vol 1, No 1 (2022)
Publisher : Universitas Wahid Hasyim

This study evaluated the profile of microbial growth inhibition on tofu treated by the essential oil of the selected spices. The microbial growth on the tofu was visually observed by the pour plate method, while their number was enumerated by the indirect optical density (OD) method. All the tested essential oils were visually reduced the microbial growth on tofu during storage. Each spices oil showed a different inhibition pattern, with bay leaf, galangal, and ginger oils exerting favorable effects for the most prolonged period. The day-bay-day comparison demonstrated that the best inhibition effect was on day-6 and -8, with bay leaf and galangal oils showing the most promising activity. The best profile of both essential oils might play a vital role in the tofu preservation process by natural products.

The Effect of Grape Seed Extract and 5-Fluorouracil toward Apoptosis Induction and Cell Cycle Modulation ofWiDr Cells Ibrahim Arifin; Farhana Farhana; Dwi Setyorini; Anis Fauzia; Dwi Nilawati
Journal of Chemical Process and Material Technology Vol 1, No 2 (2022)
Publisher : Universitas Wahid Hasyim

5-Fluorouracil is a commonly used chemotherapeutic agent in patients with colon cancer. The side effect using of 5-fluorouracil such as cardiotoxicity and immunosupressioncan lead to death. One of the approach to overcome overloaded use of 5-fluorouracil is the combination with a chemopreventive agent, including the grape seeds extract (Vitis vinifera L.). This research aims to reviewing the effect of grape seeds extract on the cytotoxic activity of 5-fluorouracil in modulating cell cycle and apoptosis induction of colon cancer cellsWiDr. Determination of the cytotoxic activity of grape seeds extract and 5-fluorouracil as well as a combination of both conducted by MTT assay. Modulation surveillance of cell cycle and apoptosis induction is done by using flowcytometry and analyzed by FACS Calibur program. Cytotoxicity assay single treatment of grape seeds extract (IC50) is 403,957μg/ml, whereas IC50 values 5-fluorouracil is 848 µM. Observations modulation of cell cycle and apoptosis induction combination of grape seeds extract and 5-fluorouracil at concentrations of 403,957μg/ml - 212 µM, showed that a combination of grape seeds extract and 5-fluorouracil to inhibit the proliferation of cells in S phase and able to induce apoptosis of colon cancer cells WiDr.Keywords: Grape seeds extract, 5-Fluorouracil, Cell cycle, Apoptosis, WiDr cells

BIODIESEL PRODUCTION OF WASTE COOKING OIL CATALYZED BY CAO DERIVED FROM SNAIL (ACHATINA FULICA) SHELL WASTE Edi Kurniawan; Fitra Perdana
Journal of Chemical Process and Material Technology Vol 1, No 1 (2022)
Publisher : Universitas Wahid Hasyim

Biodiesel can be production from waste cooking oil catalyzed by base heterogeneous catalysts. One type of heterogeneous base catalyst is CaO. CaO can be produced from mollusc animal waste, one of which is snail shell waste (Achatina fulica). The main constituent of snail shell waste (Achatina fulica) is a calcium oxide compound (CaCO3) which can be decomposed into CaO at high temperatures. In this study, a temperature of 900 oC for 10 hours was used to convert CaCO3 compounds into CaO compounds. Biodiesel production using CaO catalyst on the mole ratio of oil: methanol 1: 6, 3 g weight of catalyst, the reaction temperature at 60 °C, the reaction time of 3.5 hours, and stirring speed of 250 rpm with biodiesel results obtained at 84,28%.

WASTEWATER TREATMENT BAKERY USING ACTIVE CARBON OF WATER HYACINT AND BOILER WASTE Rita Dwi Ratnani; Afilina Yunas Ariyaningrum; Farikha Maharani
Journal of Chemical Process and Material Technology Vol 1, No 2 (2022)
Publisher : Universitas Wahid Hasyim

Bakery industry wastewater usually comes from the washing process of production equipment and generally contains organic compounds, oils, fats, and surfactants. Efforts are needed to overcome these problems so that contamination due to bakery waste can be handled. This study aims to determine the ability of water hyacinth activated carbon and boiler waste activated carbon in improving the quality of wastewater through the adsorption process so that it is expected to be in accordance with the wastewater quality standards set by the Central Java Regional Government. The variables used are activated carbon mass, time, and temperature of the adsorption process. The results showed a change in color and odor, from greenish to clear, and a reduction in fishy odor in the wastewater. A decrease in COD value and an increase in pH also occurred, with the best results being obtained using activated carbon from boiler waste at a mass weight of 20 g, a time of 90 minutes, and a temperature of 45 °C. The best results are obtained by combining activated carbon from water hyacinth and boiler waste at a mass ratio of 1:19 g, a time of 120 minutes, and a temperature of 35 °C.Keywords: Bakery Industry Wastewater, Adsorption, Activated Carbon, Color, COD, pH

Interface Structure in Friction Welded Joints between Stainless Steel 304 and Mild Carbon Steel Helmy Purwanto
Journal of Chemical Process and Material Technology Vol 1, No 1 (2022)
Publisher : Universitas Wahid Hasyim

Friction welding is a solid-state welding process using heat generated through friction. Dissimilar materials can be joined properly with friction welding. This study is a continuation of the previous study and aimed to determine the interface structure occurred on stainless steel and carbon steel joints. Stainless steel 304 and mild carbon steel are joined with this method at 2000 rpm rotation for 15 seconds and forging time of 5 seconds with a pressure of 5 MPa. The results of a micro-observation using a scanning electron microscope show good bonding in the interface area. The carbon steel is more welded to the stainless steel in the periphery than in the center. The spectrum results of Energy Dispersive X-Ray of the interface show Fe, C and Cr elements content. This is what causes the strong welding bond.

Comparison of Physical and Chemical Changes of Dried Berries Fruits Powders from Spray and Freeze Drying Alwani Hamad; Afwa Hayuningtyas; Pinyapat Jitphongsaikul
Journal of Chemical Process and Material Technology Vol 1, No 2 (2022)
Publisher : Universitas Wahid Hasyim

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36499/jcpmt.v1i2.6886

The different drying methods for preserving fruits may affect fruits' physical and chemical properties, especially dried berries. The expected drying techniques include Spray Drying (SD) and Freeze Drying (FD). The physical characteristics, such as color, taste/odor, and thermal properties, have changed during the process. The higher temperatures in spray drying may affect the phytochemical compounds that will change the final nutritional value. The juice taste and color of berries powders that FD produces are better than SD. However, the morphology of powder that resulted from SD is better. Also, the losses of phenolic compound and anthocyanin content of dried berries produced from SD are much lower than FD. Therefore, the choices of higher quality dried berries can be produced by FD that are suitable to preserve the phytochemical compounds that have health benefits.

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Home Page

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Contact Name Farikha Maharani

Contact Email farikhamaharani@unwahas.ac.id

Phone +6281325449347

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Editorial Address Jl. Menoreh Tengah X/22 Sampangan, Gajahmungkur, Kota Semarang, Jawa Tengah 50232

Location Kota semarang, Jawa tengah INDONESIA

Abstract

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Contact Name
Farikha Maharani

Contact Email
farikhamaharani@unwahas.ac.id

Phone
+6281325449347

Journal Mail Official
farikhamaharani@unwahas.ac.id

Editorial Address
Jl. Menoreh Tengah X/22 Sampangan, Gajahmungkur, Kota Semarang, Jawa Tengah 50232

Location
Kota semarang,

Jawa tengah

INDONESIA