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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 196 Documents
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Utilization of Antioxidant Fagraea fragrans fruit as Phytocosmetics Basir, Dasril; Rachmat, Addy; Julinar, Julinar; Eliza, Eliza
IJFAC (Indonesian Journal of Fundamental and Applied Chemistry) Vol 9, No 1 (2024): February 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.i1.41

Abstract

The objective is to test the antioxidant activity of methanol (MeOH) extracts,  ethyl acetate (EtOAc) fractions, and an isolated compound of F. fragrans (tembesu) fruitby using DPPH method respectively. Antioxidant is one of the main components of phytocosmetic beside anti-inflammatory, anticancer, and antimicrobial activities while phytocosmetics of F. fragrans fruit is the cosmetics that mainly use extracts or components derived from this fruit only, without preservatives, such as products that do not contain water, oils, dry ointments, or hydro-alcoholic solutions. As a result, The IC50 values of the MeOH extracts, EtOAc fractions, and the isolated compound were 186.5 ± 0.52 microgram/mL, 357.2 ± 0.59 microgram/mL, and 5.658 microgram/mL respectively. The MeOH extracts exhibited moderate antioxidant activity while the isolated compound exhibited strong antioxidant activity. The total flavonoid content of the MeOH extracts and EtOAc fraction was measured by a colorimetric assay, using reagents of 1 M sodium acetic and 10% aluminum chloride. The EtOAc fraction had a total flavonoid content of 4.505 mgQE/g-extract and total phenolic content of 13.732 mgGAE/g-extract while the MeOH extracts had a total flavonoid content of 9.088 mg QE/g-extract and total phenolic content of 23.34 mgGAE/g-extract respectively. Therefore, the utilization of MeOH extracts or the isolated compound of this fruit may be beneficial for developing skincare phytocosmetics and personal care products. Keywords: Phytocosmetics, antioxidant, Fagraea fragrans, tembesu fruit
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
Transesterification Process of Biodiesel with Potassium Glycerolate Catalyst Erisna, Desi; Arita, Susila; Hadiah, Fitri
IJFAC (Indonesian Journal of Fundamental and Applied Chemistry) Vol 9, No 1 (2024): February 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.i1.1

Abstract

The synthesis of potassium glycerolate catalyst from DES (Deep Eutectic Solvent – K2CO3-glycerol) catalyst was carried out by heating process with various temperatures. The resulting catalyst product was analyzed and the characteristics of the best potassium glycerolate catalyst had conductivity 4482 microsiemens/cm, density 1.4858 g/cm3, Viscosity 121.574 cP, Freezing Point -8 celcius and pH 14. The best temperature in the manufacture of potassium glycerolate catalyst was at 150 celcius Alkaline pH is the main requirement to be a catalyst in the transesterification reaction. The trial results for the conversion of RBDPO to biodiesel with the optimum weight percent ratio of potassium glycerolate catalyst to RBDPO were 3.5%w, methanol 30%w, reaction temperature 65 celcius, reaction time 4 hours resulted in total glycerol content in biodiesel 0.2285%, acid value 0.15%, density 0.8705 gr/cm3, viscosity 5.22 Cst, conversion 96.77% and 97.81% methyl ester content and all of these parameters all meet the biodiesel standards set by SNI-7182: 2015. Keywords: Catalyst Characteristics, Potassium Glycerolate, Transesterification, Biodiesel
Integrated Wastewater Processing using Electrogoagulation Method into Oxyhydrogen (HHO) for Renewable Energy Rusdianasari, Rusdianasari; Taqwa, Ahmad; Syarif, Aida; Bow, Yohandi
IJFAC (Indonesian Journal of Fundamental and Applied Chemistry) Vol 9, No 1 (2024): February 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.i1.48

Abstract

Integrated wastewater is one of the contributors to wastewater that can harm the environment, thus fast industrial expansion must be followed by advancements in wastewater processing systems. Because the presence of contaminants in integrated wastewater can cause several issues for persons and the environment, integrated wastewater processing is required. One type of integrated wastewater processing is the production of hydrogen gas as a new and sustainable energy source. The electrocoagulation process may be used to convert integrated wastewater into hydrogen gas. One type of integrated wastewater processing is the production of hydrogen gas as a new and sustainable energy source. The electrocoagulation process may be used to convert integrated wastewater into hydrogen gas. In this study, oxyhydrogen (HHO) was produced from integrated wastewater utilizing two process stages: integrated wastewater processing with an electrocoagulator, followed by the process of getting HHO using an oxyhydrogen reactor. A NaOH catalyst was applied at different concentrations of 0.1 M, 0.2 M, 0.3 M, 0.4 M, and 0.5 M with an electrolysis period of 5 minutes to produce hydrogen gas. The addition of the NaOH catalyst is intended to find the optimal concentration for the production of hydrogen gas. According to the findings of the study and analysis, the optimal NaOH catalyst concentration for producing hydrogen gas is 0.5 M with hydrogen content of 346 mg/m3.Keywords: electrocoagulation, oxyhydrogen, integrated wastewater, renewable energy
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.
Potential of Dimethyl Sulfoxide Modified Kaolin and Cetyl Trimethylammonium Bromide as Amoxycillin Adsorben Wardani, Gatut Ari; Damayanti, Ratih; Fathurohman, Mochamad; Hidayat, Taufik; Nofiyanti, Estin
IJFAC (Indonesian Journal of Fundamental and Applied Chemistry) Vol 9, No 1 (2024): February 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.i1.18

Abstract

The large use of amoxicillin allows this antibiotic to enter the environment in large quantities and cause pollution. The adsorption technique can be used as a method to remove amoxicillin contaminants in wastewater by utilizing kaolin as an adsorbent. This study aims to determine the characteristics of kaolin as an adsorbent and determine the ability of kaolin to adsorb amoxicillin. Kaolin was activated with hydrochloric acid and modified using Dimethyl sulfoxide (DMSO) and cetyl trimethylammonium bromide (CTAB). The results showed that the characteristics of DMSO and CTAB-modified kaolin showed a new peak which was an O-H bending vibration in functional group analysis using FTIR. X-ray diffraction results show that the distance between planes in the kaolin structure is larger. Meanwhile, the results of the SEM analysis showed that the surface morphology of kaolin had a higher level of crystallinity than before which proved an increase in the adsorption capacity of kaolin. The adsorption kinetics follows the Santosa kinetic equation model with an adsorption rate of 0.004 min-1 and an equilibrium constant value of 0.007 L.mol-1. The adsorption isotherm test follows the Freundlich isotherm equation model with an adsorption constant value of 561.694 L.mg-1 and an empirical constant value of 0.270. Keywords: Antibiotics, Adsorption, Batch, Isotherms, Kinetics
A Study of the Effects of Alum and PAC on the Coagulation Process of Dug Well Water Ramadhan, Finar; Maleiva, Lalak Tarbiyatun Nasyin; Nugraheni, Putranty Widha
IJFAC (Indonesian Journal of Fundamental and Applied Chemistry) Vol 9, No 1 (2024): February 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.i1.55

Abstract

The local population of Pal IX Village in West Kalimantan heavily depends on dug wells as their main source of obtaining clean water. The prolonged consumption of elevated concentrations of manganese (Mn) and iron (Fe) in water sourced from dug wells has neurotoxic effects on both adults and children. Therefore, it is imperative to employ alum and PAC coagulants for the treatment of dug well water in order to comply with the established national quality standard. However, the utilization of both coagulants resulted in an elevation in the levels of iron (Fe), hence restricting the capacity to satisfy the quality standards. An augmentation in the mass of the coagulant is associated with a decline in the reduction efficiency. It is indicated that utilizing a mass of 0.5 grams of alum coagulant is the most favorable choice, resulting in a reduction of 50.14% for total dissolved solids (TDS), 86.25% for color, 97.70% for turbidity, and 94.48% for the concentration of Mn metal. By PAC coagulant, it has been determined that an ideal coagulant mass of 0.5 gram produces favorable outcomes with a TDS reduction of 45.08%, a color reduction of 97.71%, a turbidity reduction of 97.22%, and a Mn reduction of 95.04%. Keywords: Alum; PAC; coagulant; coagulation; dug well water
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.
Simulation Study of Propylene Glycol Formation from Propylene Oxide and Water: Effect of Reactor Type, Reactant Ratio, Temperature, and Reactor Configuration Ariyanto, Eko; Yusmartini, Eka Sri; Robiah, Robiah; Ardianto, Feby
IJFAC (Indonesian Journal of Fundamental and Applied Chemistry) Vol 9, No 1 (2024): February 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.i1.26

Abstract

This study investigates the influence of reactor type, reactor configuration, reactor temperature, and reactant ratio on the formation of propylene glycol from propylene oxide and water using HYSYS simulation software. The examined reactor types include Continuous Stirred Tank Reactors (CSTR) and Plug Flow Reactors (PFR). The impact of reactant ratio is explored by varying the mole ratio of propylene oxide to water. The effect of temperature is studied by altering the reaction temperature from 24 to 40 °C. HYSYS simulation results reveal that PFR yields the highest conversion compared to CSTR. Furthermore, consecutive CSTR configuration produces higher conversion than parallel CSTR configuration. Additionally, an increase in reaction temperature from 24 to 40 °C enhances the conversion of propylene oxide to propylene glycol. The reactant ratio 1:1 (propylene oxide to water) yields the highest conversion compared to other reactant ratios. The implications of these findings are to provide insights into more efficient and economical propylene glycol processes. The study suggests that PFR configuration, consecutive CSTR configuration, elevated reactor temperatures, and optimal reactant ratios can significantly improve the efficiency of propylene glycol formation.Keywords: Propylene Glycol, CSTR, PFR, Conversion, HYSYS Simulation
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  

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