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EduChemia (Jurnal Kimia dan Pendidikan)

EduChemia
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Published by Universitas Sultan Ageng Tirtayasa

ISSN : 25024778 EISSN : 25024787 DOI : http://dx.doi.org/10.30870/educhemia.v6i2.10412

Core Subject : Science, Education, Engineering,

Chemical Engineering, Chemistry & Bioengineering Chemistry Education Materials Science & Nanotechnology

Focus and Scope Educhemia (Jurnal Kimia dan Pendidikan) is Periodicals published the results of research related to the development of science and technology in the field of Chemistry and Chemistry education as a form of intellectual property Chemistry: Organic chemistry, Inorganic chemistry, Biochemistry, Physical chemistry, Analytical Chemistry, Environmental Chemistry, Material chemistry, Ethnochemistry. Chemistry education: chemistry learning design and model, chemical education curricula, Technology innovation and media/multimedia in chemistry learning, development of evaluation tools, lesson study and classroom action research

Arjuna Subject : Kimia(semua kategori) - Kimia Organik

Articles 13 Documents

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Search results for , issue "Vol 6, No 2 (2021)" : 13 Documents clear

Front Matter Vol 6 No 2 (Cover, Editorial Board, Preface, Table of Contents) EduChemia EduChemia
EduChemia (Jurnal Kimia dan Pendidikan) Vol 6, No 2 (2021)
Publisher : Department of Chemical Education Faculty of Teacher Training and Education Universitas Su

Antibacterial Activity of Nanoemulsion Stem Fraction Pucuk Idat (Cratoxylum glaucum) Yopan Pratama; Robby Gus Mahardika; Adisyahputra Adisyahputra
EduChemia (Jurnal Kimia dan Pendidikan) Vol 6, No 2 (2021)
Publisher : Department of Chemical Education Faculty of Teacher Training and Education Universitas Su

The idat plant is one of the endemic plants known to the people of bangka belitung as well the shoot of idat (Cratoxylum glaucum). Cratoxylum glaucum is widely used as a traditional the skin, treat diarrhea, as antibacterial, anticancer,antivirus, and other diseases. Based on the potential of activity,the development of an Cratoxylum glaucum extract in the from of nanoemulsi is carried out which has stability and a small droplet size so that it isvery effective as an antibacterial. The purpose of this study was determine how the characterization and antibacterial activity of nanoemulsion from the Cratoxylum glaucum. Nanoemulsion was made using a homogenizer at a stirring speed of 8000 rpm for 30 minutes with a composition of 2,5 ml VCO, 10 ml tween 80, and 37,5 ml water. Nanoemulsion fraction MeOH : water from the shoot idat has a droplet size of 101,6 nm with a PI value of 0,274 and has a transmittance percent of 80,33% which can be categorized as a nanoemulsion with good stability compared to ethyl acetate and n-hexane nanoemulsion. In addition, nanoemulsion MeOH : water an antibacterial activity of S. Aureus by 10,42 cm which is categorized as strong.

Preparation of TiO2 Nanotube Using Anodization Method: Charactherization and Its Application for CO Sensor Harry Budiman; Rahmat Wibowo; Oman Zuas; Jarnuzi Gunlazuardi
EduChemia (Jurnal Kimia dan Pendidikan) Vol 6, No 2 (2021)
Publisher : Department of Chemical Education Faculty of Teacher Training and Education Universitas Su

Preparation of highly ordered TiO2 nanotube arrays (HOTNAs) by anodization of Ti foil industrial grade in ethylene glycol electrolyte containing 0.3% of ammonium fluoride and 2% of water at 30 V for 90 minutes was conducted. The morphology structure, chemical composition, functional group, crystal phase, and optical properties of HOTNAs were characterized by field emission scanning electron microscope (FE-SEM), Energy Dispersive X-Ray (EDX),Fourier transform infra-red spectroscopy (FTIR), X-ray diffraction (XRD), and ultraviolet visible diffuse reflectance spectroscopy (UV/Vis-DRS). The well-ordered nanotube with vertically oriented structure was formed in the HOTNAs having size in diameter, length, and wall thickness of 48,0 nm, 1,8 µm, and 26,7 nm, respectively. The fabricated HOTNAs were evaluated for their sensing properties for CO detection. The results show that the fabricated HOTNAs were able to detect 2500 ppm of CO gas with response about 93,429 at operation temperature 150 °C. This preliminary study of sensing performance demonstrates that the prepared HOTNAs under this study is potential and promising as a material sensor for CO detection.

Back Matter Vol 6 No 2 (Author Guidelines, Acknowledgment) EduChemia EduChemia
EduChemia (Jurnal Kimia dan Pendidikan) Vol 6, No 2 (2021)
Publisher : Department of Chemical Education Faculty of Teacher Training and Education Universitas Su

Development of Electronic Module Based on POE (Prediction, Observation, Explanation) in Natural Organic Chemistry Learning Alfia Novera Indah Esa Kasih; Agus Sundaryono; Euis Nursa’adah
EduChemia (Jurnal Kimia dan Pendidikan) Vol 6, No 2 (2021)
Publisher : Department of Chemical Education Faculty of Teacher Training and Education Universitas Su

Organic Chemistry of Natural Materials (KOBA) is a course that requires students to define, classify, and isolate compounds of natural materials. However, there are some students who still have difficulty understanding the application of material in everyday life. So that learning materials are needed that can make students active and independent in solving problems related to real life, namely by making E-Modules combined with the POE learning model. This study aims to obtain the validity of E-Module Based on POE products and to obtain questionnaire data on the responses of chemistry education students after using E-Module Based on POE. This type of research is Research and Development (R&D) with the Thiagarajan learning development model which consists of 4D (define, design, develop, and disseminate) which involves one group of subjects. The results showed that the E-Module Based on POE utilizing the Flip PDF Professional application produced a valid E-Module with an average CVR value of one. And the student response questionnaire data to the E-Module developed was 98.04% with the very good category. Means that the E-Module Based on POE developed can be a supplement to KOBA teaching materials.

Characterization and Anticancer Activity from Gaharu (Aquilaria malaccensis) Stem Bark Extract Tarso Rudiana; Elda Suci Yala Merru; Hendrawati Hendrawati; Dede Sukandar
EduChemia (Jurnal Kimia dan Pendidikan) Vol 6, No 2 (2021)
Publisher : Department of Chemical Education Faculty of Teacher Training and Education Universitas Su

Aquilaria malaccensis is a plant species from the Thymeleaceae family. A. malaccensis contains secondary metabolites of phenolic groups, namely benzophenone, chromone, coumarin, xanthone, and flavonoids with various biological activities such as antioxidants and anticancer. This study aims to determine the potential of A. malaccensis stem bark extract as an anticancer and to determine the characteristics of secondary metabolite compounds contained in A. malaccensis stem bark extract. Extraction of the stem bark of A. malaccensis by maceration method in stages using n-hexane, ethyl acetate and methanol as solvents. The anticancer activity test used the microculture tetrazolium (MTT) assay against Murine Leukemia P-388 cells. Compound separation using thin layer chromatograph (TLC) and gravity column chromatography (CC) methods. Determination of chemical compounds using liquid chromatography mass spectroscopy/mass spectroscopy (LCMS/MS). The extracts of n-hexane, ethyl acetate, and methanol each had anticancer activity which was classified as active with an IC50 value of 20.64, 26.61, and 14.49 µg/mL. Based on the results of separation and identification of compounds in methanol extract with TLC, CC, and LCMS/MS, methanol extract contains acetaminophen, aminosamptothesin, isophorone, diethyl phthalate, 3-hydroxy-6H-benzochromen-6-one, isolongifolenic, 2-(2-phenethyl) chromone, 4′,7-dihydroxy-2′,5-dimethoxyisoflavone, 4-hydroxy-3-(1-phenylpropyl)-2H-chromone-2-one; 6-methylchromone-2-carboxylic acid; 3,4-dimethyl-2- phenylmorpholine; and β-calacoren compounds.

Green Synthesis and Characterization of Cinnamylideneacetophenone Compound Using Fe3O4 Magnetic as Catalyst Dori Fitria; Antonius Herry Cahyana; Agus Rimus Liandi
EduChemia (Jurnal Kimia dan Pendidikan) Vol 6, No 2 (2021)
Publisher : Department of Chemical Education Faculty of Teacher Training and Education Universitas Su

Cinnamaldehyde is a compound found in the skin of cinnamon plants which has various bioactivity. In this study, the compound cinnamaldehyde was modified with the help of Fe3O4 which was synthesized with the help of seaweed extract as a heterogeneous catalyst. Fe3O4-MNPs are synthesized using FeCl3 and Sargassum filipendula extracts as their natural reducing agents. The catalytic ability of Fe3O4 was evaluated in the reaction between cinnamaldehyde and aromatic ketone compounds synthesized by the reflux method. Structure Analysis and elucidation of the synthesized compounds were carried out by measuring the vibrations of the functional groups by FTIR, and the determination of H and C atoms by HNMR and CNMR analysis. The FTIR, proton and carbon NMR analysis have identified that the synthesized product was cinnamylideneacetophenone by the name 1,5-diphenylpyenta-2,4-dien-1-one. The optimum conditions were obtained at a catalyst concentration of 10% w/w for five hours with a yield of 36%. The yield of this reaction was better than the reaction without a catalyst.

Optimization of Time in the Esterification Process of Jelantah Oil With Anova Analysis Eka Megawati; Adittya Octavian Perdana Putra; Norhan Effendi; Yuniarti Yuniarti
EduChemia (Jurnal Kimia dan Pendidikan) Vol 6, No 2 (2021)
Publisher : Department of Chemical Education Faculty of Teacher Training and Education Universitas Su

Used cooking oil is oil from frying which is an unused material. The processing of used cooking oil into biodiesel is expected to reduce household waste and become a new and renewable energy source. The first step in making biodiesel is the esterification process by measuring the value of free fatty acids. The purpose of this study was to determine the optimum time used during the esterification process and to compare the volume of using sulfuric acid (H2SO4) catalyst using the Anova method. The research was conducted using an experimental method. The variables used in this study were the deposition time of 12 hours to 25 hours and the volume of catalyst compared was 2 ml and 4 ml for every 200 ml of used cooking oil. Based on the results of the analysis, it was found that the optimum conditions that can be used in the deposition process are at 18 hours using 4 ml of catalyst. Based on the results of ANOVA analysis, it can be concluded that the calculated F value (0.002) <F table (94.196), it means that the FFA value of the 2 and 4 ml catalyst variations does not have a significant difference. faster process.

Development of SETS (Science, Environment, Technology, And Society) Oriented Chemical Learning Module on Natural Oil Concept Ratna Sari Siti Aisyah; Indah Langitasari; Irma Sadiah
EduChemia (Jurnal Kimia dan Pendidikan) Vol 6, No 2 (2021)
Publisher : Department of Chemical Education Faculty of Teacher Training and Education Universitas Su

The Indonesian government is trying to prepare the next generation of nations to deal with the globalization era; one of these is education. It was transformed in the application of Kurikulum 2013, in which the object of the learning process is more emphasis on phenomena or real events. But, the learning methods are still unvaried, and learning materials based on real-life problems are still not available, which creates a performance gap in the learning process. This research aims to cope with the performance gap by developing the saints, environment, technology, and society (SETS)-oriented module on petroleum topic and determine the students' response. The module developed in this research is done following a phase of the ADDIE developmental model. This developmental model consists of analyze, design, development, implementation, and evaluation. This SETS-oriented module has been trialed to 30 second-grade students of SMA Negeri 8 Kota Serang. According to validation and students' response, the SETS-oriented module developed is valid and got 87,37% of an average percentage of response, which includes great criteria

Recitation-Based Teaching Material Development for Cation Qualitative Analysis Learning Abudarin Abudarin; I Made Sadiana; Sri Wahyutami; Syarpin Syarpin; Chuchita Chuchita; Nurjennah Nurjennah
EduChemia (Jurnal Kimia dan Pendidikan) Vol 6, No 2 (2021)
Publisher : Department of Chemical Education Faculty of Teacher Training and Education Universitas Su

This study aims to develop recitation-based teaching materials for learning qualitative analysis of cations. The procedure for developing teaching materials adopts the 4-D development model (Define, Design, Develop, Dissemination) from Thiagarajan. The development results were tested theoretically and empirically. The theoretical feasibility test was carried out using expert judgment, including chemist expert, pedagogic expert, and learning media. Empirical feasibility was tested through legibility tests and limited implementation tests. Based on the expert assessment, the recitation method based teaching materials developed in this study is content valid with individual readability of 87,86% and group readability of 89,32%. The results of testing the implementation of teaching materials in the learning process showed that recitation-based teaching materials were effective, in guiding students to do independent learning activities with an effectiveness of 84,16%. The use of Cation Qualitative Analysis teaching materials based on the recitation method in online learning is effective in increasing student understanding of qualitative analysis of cations with an N-gain value of 0,81. The students' ability to complete study assignments with the help of worksheets on teaching materials has a positive correlation, with an increase in concept understanding (r = 0,91) with a contribution value of 88,43%.

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Editorial Address Department of Chemistry Education - Universitas Sultan Ageng Tirtayasa Address : Jl. Ciwaru Raya No. 25, Sempu, Kota Serang, Banten 42117, Indonesia

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Abstract

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Contact Name
Indah Langitasari

Contact Email
educhemia@untirta.ac.id

Phone
-

Journal Mail Official
educhemia@untirta.ac.id

Editorial Address
Department of Chemistry Education - Universitas Sultan Ageng Tirtayasa Address : Jl. Ciwaru Raya No. 25, Sempu, Kota Serang, Banten 42117, Indonesia

Location
Kab. serang,

Banten

INDONESIA