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INDONESIA
IJFAC (Indonesian Journal of Fundamental and Applied Chemistry)
Published by Universitas Sriwijaya
ISSN : 25409395     EISSN : 25409409     DOI : -
Core Subject : Science, Social,
Biochemistry, Genetics & Molecular Biology Chemistry Environmental Science
Indonesian Journal of Fundamental and Applied Chemistry (IJFAC) is an international research journal and invites contributions of original research articles as well as review articles in several areas of chemistry. The journal aims to publish refereed, high-quality research papers with significant novelty and short communications in all branches of chemistry. Papers which describe novel theory and its application to practice are welcome, as are those which illustrate the transfer of techniques from other disciplines. IJFAC calls for papers that cover the following fields: Biochemistry Inorganic chemistry Physical chemistry Organic chemistry Analytical chemistry Applied Chemistry All papers are peer reviewed by at least two referees. Papers presented at conferences are peer reviewed and selected with the same standards as individually submitted papers. They therefore have the same archival value. Article should be submitted by the Online Submission Module at www.ijfac.unsri.ac.id or email to ijfac@unsri.ac.id
Arjuna Subject : -
Articles 7 Documents
 1 
Search results for , issue "Vol 9, No 2 (2024): June 2024" : 7 Documents clear
Sweet flag (Acorus calamus L.) rhizomes chromatography column isolates potential as rich antioxidant compounds Amalia, Suci; Hasibuan, Lili Sunarti; Arianti, Ninit Arinda; Fasya, A Ghanaim; Dewi, Diana Chandra; Kadarani, Deva Krisna
IJFAC (Indonesian Journal of Fundamental and Applied Chemistry) Vol 9, No 2 (2024): June 2024
Publisher : IJFAC (Indonesian Journal of Fundamental and Applied Chemistry)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24845/ijfac.v9.i2.66

Abstract

the unavailability of local materials in purposing of independently manufacturing pharmaceutical products. One of plants which can be used for raw materials in the biopharmaceuticals, sweet flag (Acorus calamus L.) that is rich in bioactive compounds such as flavonoids, alkaloids, phenolic compounds, tannins, steroids, saponins, glycosides and terpenoids. Flavonoids are the majority bioactive compounds in sweet flag rhizomes, which leads this study to isolate the flavonoids to identify as antioxidant agent for biopharmaceutical products development later. This study determined the antioxidant activity of sweet flag rhizomes as its crude extract, ethyl acetate fraction, and column isolate. Decreasing range of phytochemical compounds was remained only flavonoid that was in the column isolate.  Liquid chromatography Mass Spectrometry (LC-MS) in column isolates was identified isorhamnetin, quercetin, kaempferol, genistein, and glycitein. Additionally, this study aims the data that column isolate has the highest purity level with the least inhibitory concentration 50%  (IC50) and the strongest antioxidant activity.Keywords: Jeringau Rhizome, Acorus calamus, Column Isolate, Flavonoids, Antioxidants 
Production of CO Gas as Fuel Through The Utilization of CO2 Greenhouse Gas and Fine Coal Solid Waste Yazila, Syukran; Faisal, Muhammad; Bahrin, David; Novia, Novia; Said, Muhammad
IJFAC (Indonesian Journal of Fundamental and Applied Chemistry) Vol 9, No 2 (2024): June 2024
Publisher : IJFAC (Indonesian Journal of Fundamental and Applied Chemistry)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24845/ijfac.v9.i2.117

Abstract

Utilization of Fine coal gasified with CO2 (Carbon dioxide) gas to produce CO (Carbon Monoxide) fuel is one effort to utilize coal waste and utilize CO2 greenhouse gas emissions. Testing was carried out at the Sriwijaya University Laboratory in Palembang with the aim of analyzing the production process of CO gas as fuel by utilizing the greenhouse gas CO2 through the gasification of fine coal solid waste and knowing and analyzing the influence of temperature, reaction time and CO2 gas debid on the Boundouard reaction on gas yields. CO and CO2. So we get the variable that produces the expected CO gas. The initial stage is to prepare 2.3 kg of fine coal and the grain size has been filtered to a size of <3mm or or mesh 8 – 18 then heated to a temperature of 500˚C with a time of 68 minutes 48 seconds for the carbonization process. Fine coal that has been carbonized is then reacted with CO2 gas in a heating furnace at variable temperatures of 300 ˚C, 400 ˚C, 450 ˚C and 500˚C and at a flow rate of 2.5 L/min, 5 L/min, 7.5 L/min, 10 L/min, 15 L/min. From 26 test samples, it shows that the best variable for producing CO gas is heating at a temperature of 500˚C with a CO2 reactor gas discharge of 5 L/min which can produce CO gas with a concentration of 208,586 ppm and CO2 gas is 357,703 ppm with CO & CO2 ratio is 0.583.
Adsorption Study on Phenol from Bentonite doped with Zinc oxide: Synthetis, Characterization, Equilibrium, Kinetics, and Thermodynamic Desnelli, Desnelli; Rizkiani, Delisa; Alfarado, Daniel; Ferlinahayati, Ferlinahayati; Yohandini, Heni; Fatma, Fatma; Mara, Ady; Suheryanto, Suheryanto; Nurnawati, Elisa; Hamidah, Afreni; Said, Muhammad
IJFAC (Indonesian Journal of Fundamental and Applied Chemistry) Vol 9, No 2 (2024): June 2024
Publisher : IJFAC (Indonesian Journal of Fundamental and Applied Chemistry)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24845/ijfac.v9.i2.82

Abstract

This study modified current bentonite with zinc oxide (ZnO) and investigated the performance of phenol adsorption. The material bentonite-ZnO was successfully synthesized and characterized with X-ray diffraction (XRD), scanning electron microscopy-energy dispersive X-ray (SEM-EDX), and Fourier transform infrared (FT-IR). The adsorption performance was determined by adsorption equilibrium, kinetics, and thermodynamic parameters. The adsorption, kinetic, and thermodynamic parameters were compared alternatively. The phenol adsorption capacity was obtained from Langmuir and Freundlich adsorption isotherm models, which for bentonite-ZnO was fit with both isotherm models (Langmuir R2 = 0,997 and Freundlich R2 = 0,9515) and was favorable than activated bentonite (n value bentonite-ZnO = 2.389; activated bentonite = 0,898). A kinetic model was tested with pseudo-first-order, pseudo-second-order, and intraparticle diffusion models which bentonite-ZnO and activated bentonite fit in the pseudo-second-order with an excellent agreement (R2 = 0,999). Several thermodynamic parameters such as enthalpy, Gibbs free energy, and bentonite-ZnO have an entropy more than zero (ΔS = 0.008 J/molK), which demonstrated the feasibility and spontaneity (ΔG < 0) and endothermic nature (ΔH = 3,056 kJ/mol) of the phenol adsorption process. Several thermodynamic parameters such as enthalpy, Gibbs free energy, and bentonite-ZnO have an entropy more than zero (ΔS = 0.008 J/molK), which demonstrated the feasibility and spontaneity (ΔG < 0) and endothermic nature (ΔH = 3,056 kJ/mol) of the phenol adsorption process. Based on the result data in this article, modified bentonite with ZnO has increased the ability for phenol adsorption than currently activated bentoniteKeywords: bentonite, adsorption equilibrium, adsorption kinetics, thermodynamics model, phenol, bentonite-ZnO
Soap Production from Waste Cooking Oil: A Review Ahadito, Bijak Riyandi; Afriani, Siti Rakhmi
IJFAC (Indonesian Journal of Fundamental and Applied Chemistry) Vol 9, No 2 (2024): June 2024
Publisher : IJFAC (Indonesian Journal of Fundamental and Applied Chemistry)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24845/ijfac.v9.i2.96

Abstract

In the process of cooking, chemical reactions that happen to the vegetable oil render it unfit for consumption after multiple reusage, thus turning the oil into waste. Due to the abundance of such waste, it is important to have an easy way to turn waste cooking oil into another useful commodity. Production of soap is one of such method that could be widely applied by the public due to the easiness of its procedures and no involvement of hazardous chemical, in contrast to the production of biodiesel or biofuel which sometimes demands the use of unsafe materials or conditions. The objective of this publication is to provide information about the differences between unused and used cooking oil, to lay out the methods of soapmaking, to review the academic reports of soapmaking from waste cooking oil, and to summarize the challenges that are still unsolved in this topic.
Synthesis and Characterization of Nanoparticle Composite CaO/Fe3O4 from Duck Egg Shells and Its Application for Congo Red and Procion Red MX-5b Dyes Adsorption Purwaningrum, Widia; Riyanti, Fahma; Julinar, Julinar; Hariani, Poedji Loekitowati; Ahadito, Bijak Riyandi; Chodijah, Siti; Safira, Vika Putri
IJFAC (Indonesian Journal of Fundamental and Applied Chemistry) Vol 9, No 2 (2024): June 2024
Publisher : IJFAC (Indonesian Journal of Fundamental and Applied Chemistry)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24845/ijfac.v9.i2.103

Abstract

In order to improve the adsorption performance of CaO prepared from duck egg shells, a 1:1 composite of CaO/Fe3O4 were synthesized using a coprecipitation method. This composite was then used to adsorb Congo red and Procion red MX-5b dyes from an aqueous solution. The adsorption process was studied by investigating the effects of contact time, temperature, and initial concentration of dye. It was found that the optimum conditions for Congo red adsorption are 50 minutes of contact, 50 °C, and 225 mg/L of dye, while for Procion red MX-5b the conditions are 50 minutes of contact, 60 °C, and 250 mg/L of dye. The behavior of both adsorbents at equilibria follows a pseudo-second-order kinetic model and Langmuir isotherm, with the adsorption capacity at optimum condition for Congo red and Procion red MX-5b 46.95 mg/g and 47.39 mg/g, respectively. Thermodynamics studies showed that the adsorption process of Congo red was endothermic, while Procion red MX-5b was exothermic, yet both were found to happen spontaneously.
Development of TCS3200 Color Sensor Based on Arduino Uno and Its Application in Determining Borax Levels in Food Suhud, Khairi; Sukoma, Sukoma; Saleha, Sitti; Surbakti, Muhammad Syukri
IJFAC (Indonesian Journal of Fundamental and Applied Chemistry) Vol 9, No 2 (2024): June 2024
Publisher : IJFAC (Indonesian Journal of Fundamental and Applied Chemistry)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24845/ijfac.v9.i2.74

Abstract

A color scanner application using the TCS3200 sensor, Arduino Uno microcomputer with IDE Software Program, a black box container, and a 12x2 matrix display has been designed, built, and tested. This sensor is employed to measure the level of borax in food items such as meatballs, tofu, and noodles in Banda Aceh. The obtained results are then compared with the measurement results of the Standard Ultraviolet-Visible Spectrophotometry (UV-Vis) method. Samples were prepared using centrifuge technique and the filtrate was collected. Subsequently, optical samples were prepared using dried filter paper with curcumin and scanned with the TCS3200 color sensor. Sample collection was carried out at Lamnyong Market, Lamdingin Market, Seutui Market, Suzuya Mall, and Ulee Kareng Market. Sample identification was performed using qualitative analysis, namely the flame test, and quantitative analysis using the TCS3200 color sensor based on Arduino Uno. The results of the quantitative analysis obtained from the TCS3200 color sensor compared with the ultraviolet-visible spectrophotometry (UV-Vis) method as the standard method indicate that the samples of meatballs, tofu, and noodles do not contain the harmful preservative borax. The positive control for borax using the TCS3200 color sensor is 56.8 ppm, while using the UV-Vis spectrophotometer it is 57.6 ppm. The t-test results from both methods show consistency between the TCS3200 color sensor measurement method and UV-Vis spectrophotometer      Keywords, Borax, meatballs, tofu, noodles, flame test, TCS3200 color sensor, UV-Vis spectrophotometer  
Hydrogen Production from Aluminum Waste Using the Aluminum-Water Method with Potassium as Activator Amelia, Icha; Rohendi, Dedi; Rachmat, Addy; Syarif, Nirwan; Yulianti, Dwi Hawa; Sya'baniah, Nyimas Febrika; Adhiyanti, Nurmalina; Adelia, Ory; Normah, Normah
IJFAC (Indonesian Journal of Fundamental and Applied Chemistry) Vol 9, No 2 (2024): June 2024
Publisher : IJFAC (Indonesian Journal of Fundamental and Applied Chemistry)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24845/ijfac.v9.i2.111

Abstract

Research on hydrogen production from aluminum waste using the aluminum-water method using potassium as an activator has been successfully carried out. This research aims to determine the performance of the potassium activator in hydrogen production with variable water volume and potassium percentage. Hydrogen gas production is carried out using 60 mesh aluminum waste. Optimum conditions were achieved when a mass of 1 gram of aluminum was reacted with an additional volume of water of 1.5 mL, and 7% w/w of the activator mass, with the production of hydrogen gas of 553 mL at a production rate of 69 mL/minute.

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