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INDONESIA
Jurnal Kartika Kimia
Published by Universitas Jenderal Achmad Yani
ISSN : 26551322     EISSN : 26550938     DOI : -
Core Subject : Science, Education, Engineering,
Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Education
Jurnal Kartika Kimia is National Journal that publish all research article/ review/ short communication related to progres of chemistry researchs. Scope of this journal are: 1) Analytical Chemistry ; 2) Inorganic Chemistry ; 3) Physical Chemistry ; 4) Organic Chemistry ; 5) Biochemistry also applied chemistry such as Material Chemistry, Environmental Chemistry, Catalyst, Food Chemistry, Natural Products Chemistry, and Computational Chemistry. Jurnal Kartika Kimia published by Department of Chemistry, Faculty of Sciences and Informatics, Jenderal Achmad Yani University. Jurnal Kartika Kimia publish 2 issues per year at May and November. Jurnal Kartika Kimia can be accessed via print (ISSN 2655-1322) and online (ISSN 2655-0938)
Arjuna Subject : -
Articles 139 Documents
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Photoluminescent Carbon Dots for Intelligent Food Packaging: A Review on Sensing Mechanisms and Applications Maqsudi, Shobir Muntahal; Mardawati, Efri; Noviyanti, Atiek Rostika; Hardian, Arie; Ma’Amor, Azman
Jurnal Kartika Kimia Vol 8 No 2 (2025): Jurnal Kartika Kimia (In Progress)
Publisher : Department of Chemistry, Faculty of Sciences and Informatics, University of Jenderal Achmad Yani

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26874/jkk.v8i2.950

Abstract

Ensuring food safety and quality has become a global priority, demanding innovative solutions to detect early signs of spoilage or contamination. Intelligent food packaging systems offer a promising approach through real-time monitoring of food quality. Among various sensing materials, carbon dots have emerged as a novel class of fluorescent nanomaterials with exceptional optical properties, high water solubility, low toxicity, and tunable photoluminescence. This review discusses the synthesis strategies of CDs particularly focusing on green synthesis using biomass waste and their photoluminescence mechanisms including quantum confinement, surface state, carbon core state, and molecular state emissions. The application of CDs in smart packaging is highlighted, especially in detecting spoilage indicators such as ammonia, hydrogen sulfide, Total Volatile Basic Nitrogen, and pH changes. Various studies demonstrate the ability of CDs embedded in biopolymer matrices to produce distinct color changes in response to food spoilage, making them effective visual sensors. These findings support the development of eco-friendly, sensitive, and low-cost nano sensors for next-generation intelligent packaging technologies.
Evaluation of Ethyl Acetate Saponification Reaction: Comparison of the Accuracy of Conductometric and Titrimetric Methods Hendriyana, Hendriyana; Taryana, Een; Iskandar, Handoko Rusiana
Jurnal Kartika Kimia Vol 8 No 2 (2025): Jurnal Kartika Kimia (In Progress)
Publisher : Department of Chemistry, Faculty of Sciences and Informatics, University of Jenderal Achmad Yani

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26874/jkk.v8i2.974

Abstract

This study evaluated the kinetic characteristics of the ethyl acetate saponification reaction using two analytical approaches, namely conductometry and titrimetry, in a stirred batch reactor system at various temperature conditions. Both methods showed that the reaction followed an overall second-order pattern, in line with the theory of saponification reaction kinetics. However, significant differences were found in the conversion values and activation energy obtained. The titrimetric method showed higher reproducibility and accuracy, with an estimated activation energy of 37.40 kJ/mol. This study also confirmed that increasing the reactant concentration accelerated the reaction rate by increasing the frequency of effective intermolecular collisions. Overall, the titrimetric method is recommended as a more reliable approach in the study of saponification kinetics in this experimental system.
Utilization of Freeze-Dried κ-Carrageenan for Methylene Blue Adsorption Iqbal, Muhammad; Prihadi, Az Zahra Utami; Theresia, Claresta Hara; Wahyuni, Sri; Triadhi, Untung; Aryana, Nurhani; Rusnadi, Rusnadi
Jurnal Kartika Kimia Vol 8 No 2 (2025): Jurnal Kartika Kimia (In Progress)
Publisher : Department of Chemistry, Faculty of Sciences and Informatics, University of Jenderal Achmad Yani

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26874/jkk.v8i2.992

Abstract

Methylene blue contamination in aquatic environments has become a global issue due to its widespread use in various industries. Methylene blue is a toxic, carcinogenic, and non-biodegradable dye. Adsorption can be employed as one method to mitigate this problem. The use of κ-carrageenan as an adsorbent offers an effective solution because κ-carrageenan is an abundant, easily obtainable, and economical biopolymer with promising adsorption performance. In this study, κ-carrageenan was cross-linked with K+ to form a hydrogel, which was then freeze-dried to produce a macroporous κ-carrageenan adsorbent. Characterization using FTIR confirmed the successful preparation of the adsorbent and the adsorption of methylene blue. SEM images showed changes in surface morphology, indicating successful adsorption. The adsorption process was optimum at pH 5, an adsorbent mass of 0.1 gram, and a contact time of 3 hours. Adsorption followed a pseudo-second-order kinetic model and the Langmuir isotherm model, with a maximum adsorption capacity, qmax of 128.7 mg/g at 328 K. Thermodynamic studies showed that the process was exothermic, became more disorder as a result of an increase in entropy, and occurred spontaneously. These results demonstrate that freeze-dried κ-carrageenan adsorbent has the potential for development in sustainable wastewater treatment technology.
New Modification of Natural Coagulants and Flocculants from Papaya Seeds (Carica Papaya L.) and Aloe Vera Gel in The Removal of Remazol Yellow Dye Wijaya, Khalida; Fardiyah, Qonitah; Rumhayati, Barlah
Jurnal Kartika Kimia Vol 8 No 2 (2025): Jurnal Kartika Kimia (In Progress)
Publisher : Department of Chemistry, Faculty of Sciences and Informatics, University of Jenderal Achmad Yani

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26874/jkk.v8i2.1064

Abstract

A new modification of natural coagulant and flocculant from papaya seeds Carica papaya L. and aloe vera gel has been developed in this study to remove Remazol Yellow dye. The research parameters studied included the initial concentration of the test solution, pH, and stirring speed during the coagulation process. The initial concentration of the test solution varied from 10 to 50 mg/L, the pH ranged from 1 to 6, and the stirring speed was 650 to 1050 rpm during the coagulation phase. The coagulation and flocculation results were characterized using an FTIR spectrophotometer. The results showed that the optimum conditions were an initial concentration of 30 mg/L at pH 2 and a stirring speed of 950 rpm, resulting in the highest removal effectiveness of 97.55%. The results of FTIR spectrophotometry characterization showed that the sulfonate group -SO₃⁻ in Remazol Yellow had been removed, indicating that the protonated groups -NH₃⁺ and -COOH₂⁺ in papaya seeds and the anionic groups of the dye had electrostatic interactions. This study shows that the modification of papaya seeds and aloe vera gel as natural coagulants and flocculants shows sustainable potential for azo dye-based textile wastewater treatment.
Application of Germination and Combination Germination-Rhyzopus sp. treatment for Reduction of Ochratoxin A in Peanuts Pratiwi, Amelinda; Dewi, Alifa Listina; Aisyah, Siti; Septiani, Widya Prasetyawati
Jurnal Kartika Kimia Vol 8 No 2 (2025): Jurnal Kartika Kimia (In Progress)
Publisher : Department of Chemistry, Faculty of Sciences and Informatics, University of Jenderal Achmad Yani

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26874/jkk.v8i2.855

Abstract

Peanuts are a major food commodity in Indonesia and an important source of protein, but their safety is compromised due to contamination by mycotoxins, including ochratoxin A (OTA). Several methods for OTA degradation have been explored, including chemical and physical approaches. However, biological methods like germination and a combination of germination with fungal treatment have shown potential for reducing OTA at a low cost. This study aimed to evaluate the effect of germination and a combined germination-fungal treatment using Rhyzopus sp. on the OTA content in peanuts. Peanuts spiked with 89.9 ppb OTA were subjected to germination for three days and the combination treatment. OTA degradation was analyzed using UHPLC-ESI-QQQ-MS/MS. The study found that germination and the germination-fungal treatment reduced OTA concentration on peanuts by 89.25% to 96.4%.
Enhancing Corrosion Resistance of AISI 1045 Carbon Steel Using Rosmarinus officinalis Extract: An Environmentally Friendly Approach Pawawoi, Pawawoi; Putra, Adi Ganda; Lesmana, Dera; Prajitno, Djoko Hadi; Septianissa, Selly
Jurnal Kartika Kimia Vol 8 No 2 (2025): Jurnal Kartika Kimia (In Progress)
Publisher : Department of Chemistry, Faculty of Sciences and Informatics, University of Jenderal Achmad Yani

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26874/jkk.v8i2.976

Abstract

Corrosion is the greatest challenge faced by various industries, especially those in maritime regions. This study evaluates the effectiveness of Rosmarinus officinalis extract as a corrosion inhibitor for carbon steel AISI 1045 in artificial seawater. Steel samples with varying inhibitor concentrations (0, 30, 60, 90, and 120 ppm) were immersed for 25 days. The results indicate that the weight gain due to corrosion for the sample without an inhibitor reached 79.5 mg, while the use of rosemary significantly reduced the weight gain, with the lowest corrosion rates recorded at 90 ppm (0.003 mpy) and 120 ppm (0.005 mpy). The optimal inhibitor efficiency was achieved at 60 ppm (75.57%). Microstructural analysis showed a decrease in pitting corrosion thickness and the formation of a new phase, Fe₃O₄, which is more stable and protective. These findings emphasize the potential of rosemary extract as an environmentally friendly solution for controlling corrosion in carbon steel, particularly in corrosive environments like seawater.
Analysis of the Biogas Potential of Organic Waste from Keranggot Market and Household Waste in Cilegon City Susvira, Dian; Widiyanto, Holisha; Sagala, Iman; Situmeang, Boima
Jurnal Kartika Kimia Vol 8 No 2 (2025): Jurnal Kartika Kimia (In Progress)
Publisher : Department of Chemistry, Faculty of Sciences and Informatics, University of Jenderal Achmad Yani

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26874/jkk.v8i2.979

Abstract

Organic waste from traditional markets and households represents a significant environmental challenge but also offers potential as a renewable energy source through biogas production. This study aimed to evaluate the chemical composition and gas production potential of organic waste collected from Keranggot Market and household sources in Cilegon City. Proximate analysis was conducted to determine pH, moisture content, crude fiber, fat, carbohydrate, and protein levels, while total organic carbon (TOC) was measured using the dry combustion method. Gas composition (N₂, O₂, H₂, CH₄, and CO₂) was analyzed by gas chromatography after storage in drum containers for one and two weeks. The results showed that the waste samples had an acidic pH (5.18), high moisture content (3.00%), high crude fiber content (55.01%), moderate fat (6.76%) and protein levels (5.56%), and a total organic carbon content of 19.11%. The calculated C/N ratio was approximately 21.5, which falls within the optimal range for anaerobic digestion. Gas analysis revealed the presence of methane (1.10%) and carbon dioxide (6.71%) after two weeks of storage, confirming the onset of anaerobic decomposition. These findings suggest that organic waste from Keranggot Market and household sources in Cilegon City has potential as a feedstock for biogas production, although pretreatment may be required to overcome the high lignocellulosic content.
Prenylated Flavonoids from Artocarpus elasticus: Structural Characterization and Molecular Docking toward Acetylcholinesterase Musthapa, Iqbal; Sebastian, Yolanda; nuraini, Vidia afina
Jurnal Kartika Kimia Vol 8 No 2 (2025): Jurnal Kartika Kimia (In Progress)
Publisher : Department of Chemistry, Faculty of Sciences and Informatics, University of Jenderal Achmad Yani

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26874/jkk.v8i2.980

Abstract

Prenylated flavonoids from Artocarpus spp. are a rich source of bioactive natural products, and several members have been reported to inhibit acetylcholinesterase (AChE), a therapeutic target for symptomatic management of cognitive impairment. However, reports focusing on AChE-related studies of prenylated flavonoids from Indonesian Artocarpus elasticus bark remain scarce. In this study, the ethyl acetate extract of A. elasticus stem bark collected in West Java, Indonesia, was fractionated by chromatographic techniques to afford two prenylated flavonoids. Compound 1 was tentatively assigned as artobiloxanthone based mainly on 1H NMR comparison with literature data, whereas compound 2 was identified as cudraflavone C supported by UV, FTIR, 1H NMR, and HR-ESIMS. A validated molecular docking protocol (re-docking RMSD 0.37 Å) using human AChE (PDB 4EY7) indicated low predicted binding energies for 1 and 2 (–4.1 and –3.9 kcal/mol) relative to donepezil (–12.0 kcal/mol). Both ligands mainly interacted with peripheral/mid-gorge residues and did not engage the catalytic triad, suggesting limited AChE inhibition potential in silico. These findings provide chemotaxonomic information on Indonesian A. elasticus bark and highlight the need for complementary in vitro AChE assays to confirm bioactivity.
Molecular Docking and ADMET Analysis of Flavonoid Compounds from Bajakah Tampala Stem (Spatholobus littoralis Hassk.) Targeting VEGFR-2 and c-MET Ismail, Dzava Prawinsyah Fairus; Shafa, Nafis; Pendy, Violent Irene; Devon, George Patrick; Yun, Yenny Febriani
Jurnal Kartika Kimia Vol 8 No 2 (2025): Jurnal Kartika Kimia (In Progress)
Publisher : Department of Chemistry, Faculty of Sciences and Informatics, University of Jenderal Achmad Yani

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26874/jkk.v8i2.982

Abstract

Cancer is a condition marked by abnormal and uncontrolled cell growth, with VEGFR-2 and c-MET receptors contributing to tumor angiogenesis, metastasis, and resistance to therapy. Bajakah tampala stem (Spatholobus littoralis Hassk.) is a traditional plant from Kalimantan that is rich in flavonoid compounds that may interact with these molecular targets. This study aimed to evaluate the molecular interactions, drug-likeness, and pharmacokinetic properties of Bajakah flavonoid compounds through in silico approaches. Lipinski's rule of five and ADMET predictions indicated favorable drug-likeness and absorption profiles for most compounds, although some displayed moderate intestinal absorption and potential mutagenicity. Among the evaluated compounds, hesperetin showed the most favorable predicted binding affinity toward VEGFR-2 (binding energy -9.57 kcal/mol; predicted Ki 97.00 nM), while apigetrin demonstrated the lowest predicted binding energy toward c-MET (-9.43 kcal/mol; predicted Ki 122.94 nM). Both compounds exhibit interactions comparable to reference drugs cabozantinib and crizotinib, suggesting their potential as natural lead compounds for anticancer therapy. Further in vitro and in vivo studies are warranted to confirm their efficacy and safety.

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