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Al-Kimia
Published by Universitas Islam Negeri Alauddin Makassar
ISSN : 23022736     EISSN : -     DOI : -
Core Subject : Science,
Chemistry
Al-Kimia is a journal of chemistry that published by Department of Chemistry, Faculty of Science and Technology UIN Alauddin Makassar. The journal is published twice a year on January-June and July-December. This journal encompasses original research articles in all aspects of chemistry and related area. The journal, which was firstly published in July 2013, is a forum for communication of research results, review the results of research, methodologies and new approaches in research related to chemistry in Indonesia.
Arjuna Subject : -
Articles 238 Documents
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Optimisation of The Cathodic Stripping Voltammetry For The Determination of Metal Ni(II) in The River Water pardi, Hilfi; Fitriyah, Dina
Al-Kimia Vol 11 No 1 (2023): JUNE
Publisher : Study Program of Chemistry - Alauddin State Islamic University of Makassar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24252/al-kimia.v11i1.35688

Abstract

The study was carried out to determination the metal Ni(II) in river water samples using cathodic stripping voltammetry (CSV) method. In order to achieve optimum conditions for the determination of metal Ni(II), the accumulation potential and accumulation time conditions of the CSV method have been achieved. The results of this research obtained under the optimum conditions for Ni(II) measurement using an electrolyte solution of ammonium chloride with a potential accumulation (accv) of -0.7 V and a time accumulation (acct) of 60 s. The relative standard deviation of the 10 µg/L Ni(II) standard solution (n=8) is 0.53%, the recovery value is 98.82%. The CSV method for the determination of Ni(II) metal has been successfully applied to river water samples.
Immobilization of Pseudomonas aeruginosa FNCC-0063 on Calcium Alginate and Its Application as Bioabsorbent Novianty, Iin; Suratman, Adhitasari; Mudasir
Al-Kimia Vol 11 No 1 (2023): JUNE
Publisher : Study Program of Chemistry - Alauddin State Islamic University of Makassar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24252/al-kimia.v11i1.36326

Abstract

Biosorption of Cu (II) using bacteria Pseudomonas aeruginosa FNCC-0063 was immobilized on calcium alginate (PAI). This research examined the effect of various parameters such as pH, contact time, and initial Cu (II) concentration. The biosorption mechanism of Cu (II) was studied by sequential desorption with H2O, KNO3 1 M, HNO3 0.5 M and Na2EDTA 0.1 M. Cu (II) concentration was analyzed using atomic absorption spectrophotometer (AAS). The results showed that optimum Cu (II) ion biosorption occurred at a pH biosorption rate constant of 0.03724 g mg-1.min-1. The kinetics studies showed that Cu (II) biosorption follows pseudo-second-order. The biosorption capacities of 36.60 mg/g. Cu (II) Biosorption followed the Freundlich equation, as shown by a high correlation coefficient (R2) of about 0.99. Ionic bonds dominated the biosorption mechanism of Cu (II) ion on immobilized PAI.
Antibacterial Activity Test of Secang Wood (Caesalpinia sappan L.) Ethanol Extract Against Streptococcus mutans Listiani, Febri Intan; Hafshah, Mutista; Latifah, Rais Nur
Al-Kimia Vol 11 No 1 (2023): JUNE
Publisher : Study Program of Chemistry - Alauddin State Islamic University of Makassar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24252/al-kimia.v11i1.37136

Abstract

Dental caries is caused by the Streptococcus mutans bacteria, which causes a food deposit to harden and adhere to the tooth surface. Cavities will develop if food residue is not removed. Herbal plants, specifically sappan wood, can be used as an antibiotic. The purpose of this study was to look at the secondary metabolite content of sappan wood extract, antibacterial activity, and the minimum inhibitory concentration (MIC) and minimum bactericidal concentration (MBC) of sappan wood extract against Streptococcus mutans bacteria. This research method includes the maceration of sappan wood extract with 96% ethanol solvent, phytochemical screening of sappan wood extract, inhibition zone test with paper disc method, and MIC and MBC tests. Qualitative testing revealed that the sappan wood extract contained alkaloids, flavonoids, tannins, and saponins. Flavonoids, tannins, and saponins are all constituents of plants. Secang wood extract has antibacterial activity against Streptococcus mutans, as evidenced by the formation of inhibition zones at concentrations of 20%, 40%, 60%, 80%, and 100%, namely 8.75±0.354; 11±1.41;, 12.75±0.354; 16.25±0.354; and 17.5±0.000 mm. Sappan wood ethanol extract had a MIC of 12.5% against Streptococcus mutans and an MBC of 25%.
The Influence of Ethanol Extract of Sambiloto Leaves and Sambung Nyawa Leaves To Decrease Concentration of Uric Acid Suprijono, Agus; Selta Agatha Z, Vicky; Budi Utomo, Anang
Al-Kimia Vol 11 No 1 (2023): JUNE
Publisher : Study Program of Chemistry - Alauddin State Islamic University of Makassar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24252/al-kimia.v11i1.37280

Abstract

Hyperuricemia is a condition of high concentration of uric acid in the blood that occurs because of a buildup of uric acid in the body. Uric acid is formed as a residue of the protein metabolism of foods containing purine. Some of the active compounds in the sambiloto leave (Andrographis Paniculata (Burm.F.) Nees) and sambung nyawa leave of allegedly being able to decrease the concentration of uric acid. The aims of this research is to know the influence of the difference between the ability of ethanol extract of sambiloto leaves and ethanol extract of sambung nyawa leaves (Gynura Procumbens (Lour.)Merr.) against the concentration of uric acid in vitro as well as know the effective concentration of ethanol extract of sambiloto leaves and extract ethanol of sambung nyawa leaves against a decrease in the concentration of uric acid in vitro. The extraction method used in this research is the method of extraction re-maceration by solvent ethanol 70% in 5 days, the sampling technique used was purposive sampling. The determination of concentration of uric acid is determined out by the Spectrophotometry method ABX Pentra. Series of concentrations used was 250, 500, 750, 1000, 1250, 1500, and 1750 ppm. The results of the research, the ability is effective in decreaced the concentration of uric acid in vitro on the extract of sambiloto leaves and extract of sambung nyawa leaves is 250 ppm. Statistical results showed that there is an influence of the ethanol extracts of sambiloto leaves and ethanol extracts of sambung nyawa leaves against decreasing the concentration of uric acid in vitro. And there is no difference between ethanol extracts of sambiloto leaves with ethanol extracts of sambung nyawa leaves against a decreased in the concentration of uric acid in vitro.
Active Compounds in Broadleaf Mahogany (Swietenia macrophylla) Seeds as Antiaging Agent Based on Molecular Docking Study Batubara, Irmanida; Aulia Putri, Faradina; Tohir, Dudi; Fira Asoka, Shadila
Al-Kimia Vol 11 No 1 (2023): JUNE
Publisher : Study Program of Chemistry - Alauddin State Islamic University of Makassar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24252/al-kimia.v11i1.37700

Abstract

The appearance of brown spots and wrinkles can be a sign of aging which can increase the risk of cancer. Compounds in broadleaf mahogany seeds (Swietenia macrophylla) contains many compounds and is known to have anticancer activity. The purpose of this study was to determine the compounds in the seeds of these plants have the potential to antiaging by analyzing their molecular docking interaction on the MMP-1 enzyme (matrix metalloproteinase), NEP (neprilysin), PPO3 (polyphenol oxidase), and as a support for the search for anticancer compounds. Two compounds that have the potential as strong inhibitors towards MMP-1 and PPO3 enzymes, namely β-cytostenone and 3β-hydroxystigmast-5-en-7-on which is a steroid group, as well as germacrena A and germacrena D which are terpenoids. Only compound 3β-hydroxystigmast-5-en-7-on which has the potential as a strong inhibitor of the NEP enzyme. All compounds have the potential to be strong inhibitors according to the Lipinski rule. Only compounds which binds to the PPO3 enzyme which has better activity than natural ligand based on ΔG and Binding Site Similarity (BSS) values.
Theoritical Studies of Corossion Inhibition of Coumarin and Coumarin Derivative on Iron by Density Functional Theory Approaches Ariefin, Mokhamat; Pasaribu, Marvin Horale
Al-Kimia Vol 11 No 1 (2023): JUNE
Publisher : Study Program of Chemistry - Alauddin State Islamic University of Makassar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24252/al-kimia.v11i1.38217

Abstract

Corrosion of iron is a persistent problem that affects its structural integrity and durability in various industrial applications. The design of effective corrosion inhibitors is crucial for mitigating aluminum corrosion. In recent years, coumarin derivatives have shown promising potential as corrosion inhibitors for iron due to their unique chemical properties. In this research, we employ density functional theory (DFT) calculations to investigate electrochemical parameters of coumarin derivatives on iron corrosion. Coumarin (a) and its derivative: hymechromone (b), esculetin (c), and scopoletin (d) are analyzed using DFT calculation. Some descriptor is used to identify such as ionisation energy (I), electron affinity (A), EHOMO, ELUMO, Egap, electronegativity ( ), hardness ( ), number of fraction electron transferred ( N). Based on the EHOMO, ELUMO, Egap, electronegativity ( ), hardness ( ), the order of inhibitor potential of coumarin and it derivative is c > d > b > a. However, based on the number of fractional electrons transferred ( N), the potential inhibitor of coumarin and it derivative are c > b > d > a.
The The Effectivity of Palm Oil Kernel Shell (OPS-Fe3O4) for Phenol Waste Degradation Routes Adrianto, Ari; Hadi Pratomo, Bagus; Cahya Pratiwi, Dwita; Rahmawati, Evi
Al-Kimia Vol 11 No 2 (2023): DESEMBER
Publisher : Study Program of Chemistry - Alauddin State Islamic University of Makassar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24252/al-kimia.v11i2.39783

Abstract

Phenol is a type of hazardous waste that can irritate skin, eyes, and mucous membranes in humans. It has been discovered that the phenol content in wastewater generally ranges from 1-6800 ppm. Phenol removal applications such as adsorption separation are highly recommended, one of which is the application of activated carbon. Activated carbon can be produced from natural biomass which has a high content of lignin, carbon, and hemicellulose. One of the most developed biomass is OPS (Palm Oil Kernel Shell). OPS’ texture is a hard textured endocarp and dark gray. To increase waste degradation, the application of magnetite (Fe3O4) was found to be an effective modification of the adsorbent. In the experimental results, variations in adsorbent dosage, particle size, and contact time were carried out. At various adsorbent doses, the addition of 1g/ml was more effective in producing up to 98.5% removal. Meanwhile, the size of 0.05 mm produces highest degradation when compared to 0.22 mm and 0.55 mm. The optimum contact time reveals that it occurs in the range of 50-60 minutes. The FTIR results revealed that the most abundant O-H, C=C and N-H content was found to be adsorbed at each particle size.
Molecular Docking of Physalis angulata and Schleichera oleosa as a Potential Inhibitor of Dengue methyltransferase Hasan, Rahmawaty; Lady Yunita Handoyo, Diana; Zukhruf, Laila
Al-Kimia Vol 11 No 2 (2023): DESEMBER
Publisher : Study Program of Chemistry - Alauddin State Islamic University of Makassar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24252/al-kimia.v11i2.40433

Abstract

Indonesia as the 2nd country with the largest Dengue Hemorrhagic Fever (DHF) cases among 30 countries with endemic areas. Oral infusion of Physalis angulata and Schleichera oleosa are potential plants that is traditionally applied for DHF treatment. This study aimed to analyze the chemical compounds of Physalis angulata and Schleichera oleosa as an alternative therapy to DHF utilizing the molecular docking procedure. The methods are macromolecule and ligand preparation, validation as well as molecular docking, data analysis and visualization. The compounds were downloaded from the PubChem database and dengue methyltransferase protein was obtained from PDB (1L9K). Molecular docking has interacted with the Autodock and analyzed by Pymol, Discovery Studio Visualizer and Ligplot. The results revealed that the test ligands had lower binding energies than the SAH as a native ligand, specifically 14-Hydroxyixocarpanolide -10.69 kcal/mol as a potential compound from Physalis angulata and Schleicherastatin 5 -10.25 kcal/mol as a potential compound from Schleichera oleosa. With hydrogen bonds and hydrophobic pockets, all of the test ligands bind the NS5 dengue methyltransferase active site. The results suggested that Physalis angulata and Schleichera oleosa possess offering compounds for inhibiting NS5 dengue methyltransferase as a DHF treatment.
Characterization of Hydroxyapatite of Chicken Eggshells Composite with Gelatin as Methylene Blue Absorbent Nurfadillah; Ramadani, Kurnia; Firnanelty; Chadijah, Sitti; Aisyah, Aisyah; Ilyas, Asriani; Nur, Arfiani; Adawiah, Syarifah Rabiatul; Andriani, Titik
Al-Kimia Vol 11 No 2 (2023): DESEMBER
Publisher : Study Program of Chemistry - Alauddin State Islamic University of Makassar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24252/al-kimia.v11i2.40781

Abstract

Chicken egg shells contain an inorganic element (CaCO3) which has potency to be a source of calcium hydroxide (Ca(OH)2) which is then reacted with diammonium hydrogen phosphate ((NH4)2HPO4) as a phosphate precursor for hydroxyapatite synthesis. This study aims to determine the characterization of hydroxyapatite from eggshells and determine the absorbability of hydroxyapatite-gelatin composites against methylene blue. Synthesis of hydroxyapatite used precipitation method. The calcination results obtained calcium hydroxide (Ca(OH)2) content in the shell of 68.3%. Analysis of hydroxyapatite with Fourier Tranform Infra-Red (FT-IR) there was a wavenumber of 3434 cm-1 perform hydroxyl groups (-OH-), 1421 cm-1 carbonate groups (-CO3-2) and 1035 cm-1, 604 cm-1, 471 cm-1 phosphate groups (-PO4-2), and analysis by x-ray diffraction revealed that pure hydroxyapatite crystals had formed at an angle of 2Ɵ = 34,08 with crystallinity of 100%. The peaks that appear on the XRD diffractogram are adjusted to the Joint Committee on Power Diffraction Standards (JCPDS) No. 09-0432. The synthesis of HAp-gelatin composites obtained typical groups such as, amine groups from gelatin and phosphate groups and carbonates from Hap. The results of methylene blue absorption using hydroxyapatite-gelatin composites have obtained optimum conditions at a ratio of 2: 4 for 240 minutes with an efficiency of 63%. Based on these data, it reveals that the longer the time given, the greater the methylene blue absorbed
Toxicity Test of Elo (Ficus Racemosa L.) Leaf Extracts and Fractions Using Brine Shrimp Lethality Test Methods Suryani, Novia; Gustiana, Serli
Al-Kimia Vol 11 No 2 (2023): DESEMBER
Publisher : Study Program of Chemistry - Alauddin State Islamic University of Makassar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24252/al-kimia.v11i2.40821

Abstract

This study aims to determine the toxicity ability of the Ficus racemosa L. plant, known as the elo plant, which has been widely applied as an alternative medicine for natural ingredients. The use of natural ingredients as drug candidates is one option to increase the value of natural ingredients and become biodiversity in Indonesia. The research method used is the maceration method used to obtain leaf extract. Furthermore, the extract obtained was partitioned using n-hexane, ethyl acetate, and chloroform solvents to obtain the leaf fraction. Qualitative tests were carried out to determine the secondary metabolite compounds. Meanwhile, the toxicity ability of elo plant extract and leaf fraction was tested using the Brine Shrimp Lethality Test (BSLT) as an initial toxicity screening with Artemia salina Leach. Based on the results, revealed the extract and fraction of the leaves contained secondary metabolites in the form of flavonoids, alkaloids, and saponins. Toxicity test obtained LC50 value of leaf extract of 91.76 ppm; leaf n-hexane fraction of 220.47 ppm; leaf ethyl acetate fraction of 249.13 ppm; and leaf chloroform fraction of 338.16 ppm. Based on the LC50 value, it reveals that the leaf extract and leaf fraction of the elo plant perform toxic potency.

Page 21 of 24 | Total Record : 238

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