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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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The Treatment of Phenol in Batik Wastewater by TiO2 -Copper Oxide (CuO And Cu2O) Photocatalyst Afifah, Dini Nur; Riyani, Kapti; Setyaningtiyas, Tien; Hasanah, Yeti Rusmiati; Mufarij, Adam
Jurnal Kartika Kimia Vol 5 No 1 (2022): 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.v5i1.110

Abstract

Phenol is an organic material in batik waste that must be processed before disposal because it is carcinogenic and can reduce dissolved oxygen levels. The method used to treat phenol is Advanced Oxidation Process (AOPs). The AOPs method is a waste treatment technology with free radicals to degrade pollutants into CO2 and H2O. Oxidizing agents are hydroxyl radicals (•OH) produced by certain materials, one of which is TiO2. Although proven capable of degrading organic pollutants, the use of TiO2 still encounters a reasonably significant band gap energy constraint for TiO2 (3.2 eV). The modifications carried out in this study were the addition of copper (Cu) dopants to reduce the TiO2 band gap and electron trapping to prevent electron and hole recombination. The synthesis of TiO2-Cu oxide was carried out by deposition method using TiO2 and CuCl2.5H2O as Cu precursors. The results showed that the addition of Cu to TiO2 reduced the band gap energy up to 2.25 eV. The data showed that phenol treatment using TiO2:Cu (98:2) for 6 hours at pH 2, under the influence of a tungsten lamp, could reduce phenol up to 98.03%. The photodegradation process with TiO2:Cu ratio and the same pH can occur more quickly with a UV lamp for 2 hours. The amount of phenol that can be degraded under these conditions is 98.23%. Keywords: Phenol, TiO2, TiO2 doped Cu Oxide
A Review: Antibacterial Activity of Metal Impregnated Zeolite in Water Treatment Process Sutianingsih, Yulis; K., Widya Ernayati; Kurniawan, Teguh
Jurnal Kartika Kimia Vol 5 No 1 (2022): 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.v5i1.112

Abstract

Environmental and health problems related to water pollution by bacteria are a big challenge in the water treatment process. This pollution is caused by industrial development and increased population growth. Bacterial removal methods in water are continuously developed to find an efficient water treatment process. Zeolite has the potential to be an adsorbent used in the water treatment process. Zeolite has been widely used in adsorption and catalytic processes. Zeolite is a porous alumina silicate consisting of silicon, aluminium, and oxygen in its framework. Zeolite cations can be exchanged with monovalent or divalent ions. Zeolite does not have antibacterial activity, so it should combine with metal cations such as Ag, Cu, Zn, and Fe. Metal active that loaded into zeolite framework is a solution to improve the zeolite performance for bacteries removing in water. The impregnation method is the most widely used for the metal loading process into zeolite framework, because of its simple and economical process. This review will discuss natural and synthetic zeolites, types of metal, impregnation process, the antibacterial activity of metal impregnated zeolite, bacterial attack mechanism, and antibacterial application of metal impregnated zeolite in water
Synthesis of Biodiesel from Waste Cooking Oil Using Heterogeneous Catalyst (CaO) Based on Duck Eggshell with Transesterification Reaction Susvira, Dian; Hartono, Rudi; Fauzantoro, R. A.
Jurnal Kartika Kimia Vol 5 No 1 (2022): 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.v5i1.122

Abstract

Biodiesel is produced from esterification and transesterification reactions of various vegetable oils such as coconut oil, palm oil, seed oil, soybean oil, etc. Waste cooking oil has the potential as a raw material for making biodiesel due to its abundant availability. The use of the CaO catalyst from duck eggshells can increase biodiesel quality. This study aimed to obtain the best catalyst with a high yield in biodiesel production using the transesterification method. The initial stage begins with activating the impregnated duck eggshell catalyst with various concentrations of KOH in distilled water (10 g KOH/100 mL, 15 g KOH/100 mL, 20 g KOH/100 mL, and 25 g KOH/100 mL). Followed by biodiesel synthesis steps using temperature variations in transesterification (45˚C, 55˚C, and 65˚C) in reaction times of 1, 2 and 3 hours using 2% catalyst concentration to the amount of waste cooking oil and a molar ratio of methanol: oil (7:1). The experimental results showed that transesterification of waste cooking oil could be improved with the presence of a CaO heterogeneous catalyst. The values of density, Free Fatty Acid (FFA), viscosity, and the acid number obtained was adjusted to the parameters using SNI:7182:2015. Only the total ester parameter (96.02%) and the cetane number (40.4) did not meet the requirements. Keywords: biodiesel, duck eggshell, waste cooking oil
Ecoenzyme Production, Characteristics and Applications: A Review Gumilar, Gun Gun; Kadarohman, Asep; Nahadi, Nahadi
Jurnal Kartika Kimia Vol 6 No 1 (2023): 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.v6i1.186

Abstract

The reuse and management of organic waste can reduce significantly the impact on the environment and human health, as well as improve economic value through developing value-added products of certain applications. One of the solutions to cut down is solid organic waste such as fruit and vegetable waste into ecoenzymes via fermentation. This current review discusses the production, characterization, and application of ecoenzymes. The data was gathered from international and national indexed journals and proceedings. Ecoenzyme is produced via fermentation from fruit/vegetable waste, sugar, and water with a ratio of 1:3:10. In general, the modification made is changing the type of sugar and the type of fruit/vegetable waste used as raw material. The characterization mainly focuses on evaluating the content and activity of the enzymes. Wide range of applications of ecoenzyme found as liquid fertilizers, antimicrobial agents, wastewater treatment processes, and sludge treatment processes.
Review of Surfactant Use in Curcumin Drug Delivery System Rostinawati, Titin; Sriwidodo, Sriwidodo; Susilawati, Yasmiwar; Ch., Anis Yohana
Jurnal Kartika Kimia Vol 5 No 1 (2022): 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.v5i1.96

Abstract

Curcuminoids are the active components of the dried rhizome of Curcuma longa Linn. Curcuminoids consist of the three most basic constituents: curcumin, demethoxycurcumin, and bisdemethoxycurcumin. Traditionally, turmeric is widely used to treat flatulence, liver, menstrual disorders, hematuria, bleeding, and colic. With more research, turmeric's benefits are increasing, ranging from anti-inflammatory, cancer, autoimmune, neurological, cardiovascular disease, and diabetes. However, this is limited by the Physicochemical properties of curcumin which is not soluble in water; its metabolism is fast, and it is unstable in physiological pH and alkaline, causing low bioavailability and resulting in less optimal therapeutic effect. Currently, several drug delivery systems have been developed to improve the bioavailability of curcumin, such as adjuvants, liposomes, nanoparticles, curcumin-phospholipid complexes, curcumin structural analogs, micronization, and nanonization, Self Micro Emulsifying Drug Delivery Systems (SMEDDS), cyclodextrin inclusions, solid dispersions, nanoemulsions, nano balls, nanobeads, and nanofibers. Many of these preparations use the help of surfactants. Surfactants are used as emulsifiers, wetting agents, and solvents. In principle, surfactants help reduce surface tension and interfacial tension in gases, liquids, and solids, allowing these substances to diffuse and spread. Factors that must be considered when selecting a surfactant are the critical micelle concentration and the HLB value. Selection of the right surfactant will help increase bioavailability.
Effect of Time Variation on Chlorophyll Concentration in Cocoa Leaf Extraction using the UAE (Ultrasonic Assisted Extraction) Method Rahmawati, Istiqomah; Shabrina, Nadhilah; Fachri, Boy Arief; Amini, Helda Wika; Palupi, Bekti; Rizkiana, Meta Fitri; Nurtsulutsiyah, Nurtsulutsiyah; Pradipta, Shima Nuril; Afwal, Diza Raudhatul; Reza, Muhammad
Jurnal Kartika Kimia Vol 5 No 1 (2022): 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.v5i1.97

Abstract

Until now, Cocoa (Theobroma cacao L.) plantation is a sector that has been continuously cultivated. Cocoa leaves contain chlorophyll, which is an important pigment in photosynthesis as sunlight absorber. The aim of this study is to determine the effect of extraction time to the concentration of chlorophyll in cocoa leaves. The extraction time was varied from 5 to 25 min with constant variables, namely power and ratio of raw materials. In this study, Ultrasonic Assisted Extraction (UAE) method was used due to its effectiveness. The concentration of obtained chlorophyll was determined by using UV-Vis spectrophotometry. The optimum extraction time was 15 min producing concentration of chlorophyll a of 9.39 mg/L, chlorophyll b of 4.78 mg/L, and total chlorophyll of 14.16 mg/L.
Optimization of Cr(VI) Adsorption on Eugenol-Silica Gel Composites Using Behnken Box Design Fathurrahman, Muhammad; Sutanto, Sutanto; Aminingsih, Tri; Maharani, Restu Dewinta
Jurnal Kartika Kimia Vol 5 No 1 (2022): 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.v5i1.104

Abstract

This study aims to find the optimum conditions for the adsorption of Cr (VI) ion to the eugenol-silica gel composite as an adsorbent and to determine the adsorption parameters using the Langmuir and Freundlich isotherm model. The three optimization parameters analyzed were pH, contact time, and weight of the adsorbent of the eugenol-silica gel composite. The optimization experiment was designed using the Box Behnken Design Response Surface Methodology (RSM) on the MINITAB software. Then, the maximum adsorption capacity was evaluated using the Langmuir and Freundlich isotherm equation model. The results showed that the optimum conditions for the adsorption process were the weight of the eugenol-silica gel composite adsorbent of 0.15 grams, contact time of 35 minutes and pH of 5. The adsorption process under these conditions was favorable because the RL obtained was 0.0297. The maximum absorption capacity of Cr (VI) was indicated by the qm value of 1.0328 mg/g, and the KF, KL, and n values ​​observed 0.7961, 1.0885 and 14.0056, respectively. Adsorption of Cr(VI) ion by eugenol-silica gel composite followed the Langmuir isotherm equation.
Karakterisasi Gelatin Hasil Ekstraksi dari Tulang Sapi Melalui Proses Perlakuan Basa NaOH Sitepu, Lorena; Fatimah, Siti
Jurnal Kartika Kimia Vol 5 No 1 (2022): 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.v5i1.106

Abstract

Gelatin is a soluble protein that acts as a gelling agent and is commonly used as an ingredient in both food and non-food production. Since bone is composed of collagen fibers, it can be used as a raw material for gelatin production. Beef bone is a waste product that is rarely used. Sodium hydroxide (NaOH) can be used as a processing ingredient in the production of type B gelatin because it can remove fats and oils. The purpose of this study was to investigate the effects of 2%, 3%, 4%, 5%, and 6%NaOH concentrations on the properties of bovine bone gelatin at 4 and 6 hours of extraction time. The observed properties were yield, water content, ash content, pH, viscosity, and microbial contamination. The results showed that the pretreatment condition with 6% NaOH and extraction for 6 hours affected the properties of the highest yield, water content dan microbial contamination have fulfilled the SNI. The conclusion of this study is that NaOH can be used in the production of bovine bone gelatin, and there are some advances in producing gelatin with excellent properties for food and non-food applications.
Sintesis dan Karakterisasi Titanium Oksida Dalam Cairan Ion 1-Butil-3-Metil Imidazolium Klorida dengan Metode Hidrotermal Enriyani, Riri; Zulfikar, Muhammad Ali; Alni, Anita
Jurnal Kartika Kimia Vol 5 No 1 (2022): 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.v5i1.111

Abstract

In this study, TiO2 was synthesized using the hydrothermal method which the solvent used was a mixture of 1-butyl-3-methyl imidazolium chloride ion (BMIM Cl) with water in a ratio of 3:7 v/v. Ionic liquid of 1-butyl-3-methyl imidazole was synthesized with methyl imidazole and chlorobutane as precursors and then characterized using 43 MHz NMR. TiO2 which had been synthesized with BMIM Cl : water (3:7 v/v) was then characterized using XRD, SEM, UV-Vis/DR and BET then compared the results with TiO2 synthesized with water solvent. Based on of XRD analysis was obtained that TiO2 was synthesized by BMIM Cl : water (3:7 v/v) and water solvent produced anatase and brochite crystals where the crystal size of TiO2 synthesized with BMIM Cl : water (3:7 v/v) as solvent was smaller that is 17.70 nm and which is synthesized with water solvent is about 20.35 nm. Based on the SEM characterization data, the morphological structure was more homogeneous. Based on the characterization data using UV-Vis/DR and BET, it was obtained that TiO2 synthesized with BMIM Cl : water (3:7 v/v) had a bigger band gap and larger surface area and pores than TiO2 synthesized by water solvent.
Aktivitas Antirayap Ekstrak dan Fraksi Biji Jeruk Sambal (Citrus microcarpa Bunge) Terhadap Rayap Tanah (Coptotermes curvignathus Holmgren) Jayatri, Rahmi; Warsidah, Warsidah; Rudiyansyah, Rudiyansyah
Jurnal Kartika Kimia Vol 6 No 1 (2023): 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.v6i1.125

Abstract

Citrus microcarpa is one of the Rutaceae family plants which is commonly used for food industries to enhance aroma and flavor. This plant contains secondary metabolites such as terpenoids, flavonoids, and phenolics. Unfortunately, bioactivity information, specifically anti-termites from citrus seeds is unreported. The aim of this study was to determine anti termite activity of the methanol extract and fractions of the citrus seeds against Coptotermes curvignathus Holmgren. The research was carried out in several stages, starting from maceration, partitioning, phytochemical testing, and termite activity testing for 7 days. The results of the subterranean termite mortality test were justified based on the LC50 values, from the smallest to the largest values, respectively, chloroform fraction 1.689%, methanol fraction 1.783%, n-hexane fraction 1.788%, and methanol extract 2.324%. The results of termite mortality which reached 100% for each tested sample were due to the extract and fractions of the citrus seeds have antifeedant activities.

Page 7 of 14 | Total Record : 139

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