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Jurnal Kimia Sains dan Aplikasi
ISSN 1410-8917 · Chemistry Department, Faculty of Sciences and Mathematics, Diponegoro University · 857 artikel di indeks
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Artikel Jurnal
Antibacterial Edible Film Based on Trema orientalis Leaf Extract: In Silico, In Vitro, and Toxicity Screening
Antibacterial edible films based on natural extracts have gained attention as sustainable alternatives for food packaging. Leaf extract of Trema orientalis contains bioactive compounds, including flavonoids, phenolics, alkaloids, terpenoids, and saponins, with potential antibacterial activity. The…
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Artikel Jurnal
Low-Cost Rice Husk Ash-Based Adsorbent for Surfactant and Phosphate Removal from Laundry Wastewater
The discharge of laundry wastewater containing surfactants and phosphates represents a growing environmental concern, particularly in areas where wastewater is released without adequate treatment. This study evaluates sulfuric acid–activated rice husk ash (RHA) as a low-cost adsorbent for removing…
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Effect of Clove Flower Essential Oil (Syzygium aromaticum) Addition on the Antibacterial and Antioxidant Activities of Lemongrass Essential Oil (Cymbopogon citratus)
Indonesia, as a tropical country, possesses substantial potential for the development and utilization of essential oils, particularly those derived from lemongrass (Cymbopogon citratus) and clove flowers (Syzygium aromaticum). Lemongrass essential oil is rich in citral and exhibits notable…
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Artikel Jurnal
Optimization of Guava Leaf Extract Loading in Chitosan-Based Nanoencapsulation for Oxidation Inhibition
Guava leaves contain various active compounds, including tannins, phenolics, and flavonoids, with potential as antioxidants, antimicrobials, and anti-inflammatory agents. Guava leaf extract has been used in various fields, including manufacturing, as a corrosion inhibitor. Nanoencapsulation is a…
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Artikel Jurnal
Optimization of Chitin Extraction and Conversion to Chitosan from Black Soldier Fly (Hermetia illucens) Pupae for Sustainable Biopolymer Production
Chitin and its derivative, chitosan, are natural polysaccharides with wide industrial applications due to their biodegradability and multifunctional biological activities. The black soldier fly (Hermetia illucens, BSF) represents a promising alternative source of chitin beyond conventional…
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Artikel Jurnal
Synthesis of Polyethylene Glycol-Modified Salicylaldehyde–Chitosan Schiff Base and Its Antibacterial Assay
Antibacterial materials are essential for inhibiting the growth of pathogenic microorganisms, and chitosan has received considerable attention due to its intrinsic antibacterial properties, biocompatibility, and biodegradability. However, the limited hydrophilicity and moderate mechanical strength…
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Artikel Jurnal
Physicochemical and Mechanical Characterization of Meloxicam-Fumaric Acid Co-Crystals Synthesized by Ultrasound-Assisted Solution Method
Meloxicam (MLX) is a class II BCS non-steroidal anti-inflammatory drug (NSAID) with low solubility and manufacturing challenges due to its needle-like crystal habit, which causes poor flowability and high elasticity. These mechanical characteristics often trigger capping and lamination during…
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Artikel Jurnal
Synthesis and Characterization of Chitosan-HPMC-Methylparaben Hydrogel Film as an Antibacterial Wound Dressing Material
Chitosan-HPMC-methylparaben hydrogel film has been successfully synthesized. Chitosan, a key component with desirable characteristics for the production of hydrogel films, has some shortcomings that can be overcome by adding HPMC, a commonly used gelling agent that improves the physical properties…
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Artikel Jurnal
Development of Bacterial Cellulose Membrane from Sulfation SCOBY Kombucha for Polymer Electrolyte Membrane Fuel Cell (PEMFC) Applications
Electrolyte membranes are critical components in determining the performance of PEMFC systems. The use of commercial membranes remains constrained by high production costs, thereby necessitating the development of biomaterial-based alternatives. Cellulose derived from SCOBY Kombucha presents a…
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Artikel Jurnal
The Release of Curcumin from β-TCP/SiO₂/Curcumin Composites in a Ringer’s Lactate Solution
Osteoporosis is characterized by bone deterioration caused by high levels of reactive oxygen species (ROS), which inhibit osteoblast activity and lead to a decrease in bone density. Adding curcumin, a natural antioxidant, to calcium phosphate cement (CPC) enhances its function beyond simply…
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Artikel Jurnal
Recovery of Slow-Release Fertilizer from Tofu Wastewater via Magnesium Ammonium Phosphate (Struvite) Precipitation: Effect of pH and Molar Ratio
Tofu wastewater contains high concentrations of phosphate (PO43−) and ammonium (NH4+), which can cause eutrophication if discharged without proper treatment. One promising method for nutrient recovery and wastewater remediation is struvite (MgNH4PO4·6H2O) precipitation, which simultaneously removes…
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Artikel Jurnal
Determination of the Activity of Bioactive Compounds from Biancaea sappan (L.) Tod. and Spatholobus ferrugineus (Zoll. and Moritzi) Benth Against Breast Cancer Cells: An In Silico Study
Breast cancer is one of the most prevalent malignancies worldwide, with subtypes expressing hormone receptors such as the Estrogen Receptor (ER), Progesterone Receptor (PR), and HER2 being primary therapeutic targets. This study explores the potential of natural compounds as inhibitors for these…
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Artikel Jurnal
Effect of UV Curing Temperature on the Preparation and Properties of PMMA-Diacrylate RM82 Composite Membranes and Test of Water/Methanol Uptake
A composite membrane of Polymethylmethacrylate-reactive mesogen RM82 (PMMA-Diacrylate RM82) was prepared by UV curing at 110, 120, 130, 140, and 150°C. FTIR spectroscopy revealed peaks at 1086 cm−1 and 1147 cm−1, indicating the presence of ester functional groups (C-O). An ether functional group…
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Artikel Jurnal
Chitosan/Bentonite Composite Membrane Doped with LiOH as an Electrolyte Candidate for Energy Storage Systems
This study aimed to synthesize and characterize chitosan/poly(vinyl alcohol) (PVA)-based polymer electrolyte membranes modified with bentonite and LiOH using the solvent casting method. The chitosan:PVA composition was varied from 10:90 to 90:10 to evaluate its effects on the physical, mechanical…
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Artikel Jurnal
Copigmented Butterfly Pea Flower Extract (Clitoria ternatea L.) as an Antibacterial Agent against Propionibacterium acnes and Its Formulation in Microneedle Patches
Acne vulgaris is a common skin condition often caused by a bacterial infection with Propionibacterium acnes. The extract of butterfly pea flower (Clitoria ternatea L.) contains anthocyanins and other bioactive compounds that have potential as antibacterial agents. Anthocyanins are unstable to heat…
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Artikel Jurnal
Quality Assessment of High-FAME Biosolar Fuels (B40–B60) Based on Indonesian Fuel Standards
The increasing utilization of biosolar fuels with high FAME (Fatty Acid Methyl Ester) content requires systematic quality evaluation to ensure compliance with fuel quality standards. This study evaluated biosolar fuels with different FAME fractions (B0, B40, B50, B60, and B100), with B40–B60…
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Artikel Jurnal
Development of Methyl Methacrylate-Based Molecularly Imprinted Polymer (MIP) Modified Electrodes for the Cyclic Voltametric Analysis of Caffeine in Coffee
Caffeine is a type of alkaloid found in coffee, tea, and chocolate. Caffeine consumption is generally safe and offers benefits such as increased alertness and concentration; however, excessive consumption can potentially lead to caffeine poisoning or overdose, which can be harmful to health and…
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Artikel Jurnal
Synthesis of Activated Carbon/Magnetite Nanocomposite Modified with Povidone for Adsorption Applications of Heavy Metal Ions
This study reports on activated carbon/magnetite nanocomposite modified with povidone for the adsorption applications of heavy metal (lead) ions. The synthesis routes used in this study were coprecipitation, activated carbon activation, and ex-situ methods. The data analysis results showed that the…
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Artikel Jurnal
Biogenic Silver Nanoparticles from Plumeria Extract and Their Larvicidal Potential Against Aedes aegypti
Larvicides are a class of insecticides that chemically control the growth of dengue vectors. Although synthetic larvicides remain effective for mosquito control, their prolonged and excessive use may contribute to insecticide resistance and potential environmental impacts. In alternative…
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Artikel Jurnal
Detection of Adulteration in Coffee Products Using FTIR Spectroscopy and Multivariate Analysis
Food fraud, particularly in coffee, is increasingly prevalent worldwide and poses significant risks to consumers. This study aimed to analyze the purity of coffee products in the Bandar Lampung market and evaluate the validity of Fourier Transform Infrared (FTIR) spectroscopy and chemometric…