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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 153 Documents
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Antibacterial Activity of the Endophytic Fungus Fusarium solani Isolated from the Stem of Bauhinia fulva Blume Against Staphylococcus aureus and Escherichia coli Sari Purbaya; Yenny Febriani Yun; Dara Santika; Yosephine Liliana Intan Danar Saputri; Fitria Rahma Dewi; Riana Zevanisa Arsyi; Dayu Yunita; Fahriani Istiqomah; Siska Elisahbet Sinaga
Jurnal Kartika Kimia Vol 9 No 1 (2026): Jurnal Kartika Kimia
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.v9i1.1087

Abstract

Endophytic fungi are microorganisms that live within plant tissues and are capable of producing secondary metabolites with potential antibacterial, antifungal, and anticancer activities. This study aimed to isolate, identify, and evaluate the antibacterial activity of endophytic fungi from the stem of Bauhinia fulva Blume through isolation, morphological identification, fermentation, ethyl acetate extraction, phytochemical screening, and antibacterial testing using the disk diffusion method. The results showed that the isolated endophytic fungus was identified as Fusarium solani, producing 1.4095 g of ethyl acetate extract. Phytochemical screening revealed the presence of alkaloids, flavonoids, quinones, and triterpenoids/steroids. The ethyl acetate extract of F. solani exhibited antibacterial activity against Staphylococcus aureus with a maximum inhibition zone of 20.85 mm and lower activity against Escherichia coli with a maximum inhibition zone of 5.56 mm, indicating its potential as a natural source of antibacterial compounds.
Sustainable Green Synthesis of ZnO Photocatalysts Using Shallot Peel Extract as Capping Agent for Efficient Photodegradation of Rhodamine B Didi Prasetyo Benu; Cindy Claudia Christanti; I Gede Arya Wiguna; Fry Voni Steky; Veinardi Suendo
Jurnal Kartika Kimia Vol 9 No 1 (2026): Jurnal Kartika Kimia
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.v9i1.1103

Abstract

Green synthesis strategies offer a sustainable approach for preparing semiconductor photocatalysts with tunable properties. In this study, ZnO particles were synthesized using shallot peel extract, and their structural, morphological, optical, and photocatalytic properties were systematically investigated. Structural characterization by Raman spectroscopy and X-ray diffraction confirmed the formation of phase-pure wurtzite ZnO, with crystallite sizes in the nanometer range. Scanning electron microscopy revealed hexagonal rod-like morphologies with dimensions of 1–2 μm, which are interpreted as polycrystalline assemblies of aggregated nanocrystallites. Optical analysis using UV–Vis diffuse reflectance spectroscopy showed a direct bandgap of 3.02 eV and additional visible-light absorption, which may be associated with defect states and possible extrinsic contributions. Photoluminescence spectroscopy exhibited green emission attributed to intrinsic defects. The photocatalytic performance of the synthesized ZnO was evaluated through the removal of Rhodamine B under irradiation, achieving a maximum removal efficiency of 97.68% within 150 min. Kinetic analysis indicated that the process follows a pseudo-first-order model with an apparent rate constant of 0.0290 min⁻¹. The observed photocatalytic performance may be associated with the structural and optical characteristics of the synthesized ZnO. However, the specific roles of these factors, as well as the contribution of adsorption, cannot be conclusively distinguished in the absence of a control sample. Overall, this study provides insight into the relationship between synthesis conditions and the resulting properties of green-synthesized ZnO, while highlighting the need for further investigation to clarify the underlying mechanisms. This work demonstrates that shallot peel extract is an effective and environmentally benign capping agent for engineering ZnO photocatalysts with high efficiency for wastewater treatment applications.
Electrodeposition of Zinc on Iron Plates in the Presence of N,N-Dimethylurea and Sapindus rarak Rind Extract as Additives Sal Prima Yudha S; Akhmad Ues; Agus M.H. Putranto; Muhamad Alvin Reagen; Muhammad Adli Afif; Jimmy Askhan; Lenon Jus Pentus Tarigan
Jurnal Kartika Kimia Vol 9 No 1 (2026): Jurnal Kartika Kimia
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.v9i1.1114

Abstract

A study on the addition of natural in the form of Lerak (Sapindus rarak) fruit rinds extract (ESR and synthetic additives in the form of N,N-dimethylurea (DMU) compounds in the zinc electrodeposition process on iron plates was carried out at room temperature. The results of this study show that the electrodeposition of zinc in electrolyte solution treated with Sapindus rarak extract additive gives a more visually uniform and compact coating morphology based on optical microscopy observations coating product than the electrodeposition product without additive or using N,N-dimethylurea additive. This has been observed using the naked eye and supported by observations under an optical microscope. The existence of zinc coating on the surface of the iron plate is supported by an increase in material thickness (control: 0.051 mm), (DMU: 0.025 mm) and (ESR: 0.028 mm) and an increase in material weight (control: 0.085 g), (DMU: 0.074 g) and (ESR: 0.074 g). In conclusion, the addition of DMU and ESR reduced the thickness and mass gain compared with the additive-free control.

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