cover
Article Per Year (5 Year)
All
Home Page
OAI Link
Editorial Team
Contact
Reviewer
Google Scholar
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
Journal of Chemical Process and Material Technology
Published by Universitas Wahid Hasyim Semarang
ISSN : 28282221     EISSN : 28280199     DOI : http://dx.doi.org/10.36499/jcpmt
Core Subject : Science, Engineering,
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 5 Documents
 1 
Search results for , issue "Vol 1, No 1 (2022)" : 5 Documents clear
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

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (71.502 KB) | DOI: 10.36499/jcpmt.v1i1.5896

Abstract

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
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

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (506.762 KB) | DOI: 10.36499/jcpmt.v1i1.5676

Abstract

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

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1289.213 KB) | DOI: 10.36499/jcpmt.v1i1.5759

Abstract

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.
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

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (41.222 KB) | DOI: 10.36499/jcpmt.v1i1.5860

Abstract

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%.
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

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (301.117 KB) | DOI: 10.36499/jcpmt.v1i1.5881

Abstract

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.

Page 1 of 1 | Total Record : 5

 1 

Filter by Year

2022 2022


Reset
Filter By Issues
All Issue Vol 2, No 2 (2023) Vol 1, No 2 (2022) Vol 1, No 1 (2022)