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All Journal Jurnal Pendidikan dan Pembelajaran Khatulistiwa (JPPK) QUANTUM: Jurnal Inovasi Pendidikan Sains Jurnal Kimia Riset Jurnal Penelitian Pendidikan IPA (JPPIPA) Jurnal Abdi Insani Hydrogen: Jurnal Kependidikan Kimia J-ABDIPAMAS (Jurnal Pengabdian Kepada Masyarakat) JIPI (Jurnal IPA dan Pembelajaran IPA)
Eni Mayasari
Universitas Tanjungpura
Agriculture, Biological Sciences & Forestry Humanities Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Engineering Environmental Science Health Professions Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Library & Information Science Materials Science & Nanotechnology Mathematics Physics Social Sciences Other

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Phenolic Screening and Total Phenolic Content of Jelutung Rawa (Dyera polyphylla (Miq.) Steenis) Plant Extracts Febriani, Melda; Muharini, Rini; Mayasari, Eni; Ola, Antonius
Jurnal Kimia Riset Vol. 10 No. 2 (2025): December
Publisher : Universitas Airlangga, Campus C Mulyorejo, Surabaya, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20473/jkimris.v10i2.71004

Abstract

Dyera polyphylla (Miq.) Steenis, or jelutung rawa, is an endemic tree species native to Indonesia’s tropical peat swamp forests. While related species such as Dyera costulata have been reported to contain various bioactive compounds particularly phenolics with antioxidant, anti-inflammatory, and antimicrobial properties, there has not been phytochemical studies on D. polyphylla. This study aimed to investigate the phenolic compound profile and total phenolic content in the stem wood, stem bark, and leaves of D. polyphylla. Extraction was carried out using total and stratified maceration methods with n-hexane, ethyl acetate, and methanol as solvents. Qualitative analysis involved phytochemical screening by using phenolic specific reagents, thin-layer chromatography (TLC) with FeCl₃ reagents, and high-performance liquid chromatography (HPLC). Total phenolic content was quantified using the Folin–Ciocalteu spectrophotometric method. Phenolic compounds were detected in all plant parts, particularly in the ethyl acetate and methanol extracts. HPLC analysis showed that the chromatographic profile of the methanol extract from stem wood closely resembled that of the leaves. The highest phenolic content was observed in the methanol extract of the leaves (29.02 mg GAE/g). These results suggested that D. polyphylla, particularly its leaves, is a promising natural source of phenolic compounds with potential antioxidant and therapeutic value.
Pembelajaran Bermakna dalam Praktikum Kimia: Metode Campuran (Mixed Method) Menggunakan MLLIv2 Erlina; Maria Ulfah; Eni Mayasari; Marisa
Jurnal Penelitian Pendidikan IPA Vol 11 No 9 (2025): September
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v11i9.12393

Abstract

This study aimed to measure the extent of meaningful learning achieved by students during general chemistry laboratory activities. A descriptive quantitative design was employed with 126 participants, consisting of 51 Chemistry Education and 75 Biology Education students. Data were collected using the Meaningful Learning in the Laboratory Inventory (MLLIv2), which evaluates affective, cognitive, and affective–cognitive aspects. The data were analyzed and categorized into five levels from “very poor” to “very good.” The results showed that most students were in the “very good” category (81–100%) across all aspects, with smaller proportions in the “good” category (61–80%). No students were classified as “fair,” “poor,” or “very poor.” Chemistry Education students achieved slightly higher averages (affective = 91%, cognitive = 93%, affective–cognitive = 91%, overall = 92%) compared to Biology Education students (affective = 85%, cognitive = 89%, affective–cognitive = 89%, overall = 88%). These findings indicate that the laboratory effectively fostered meaningful learning by integrating cognitive understanding with affective engagement. The results also emphasize that meaningful learning is shaped not only by conceptual mastery but also by students’ emotional responses and their ability to connect laboratory experiences with academic and professional goals.
PELATIHAN ECOPRINT TEKNIK STEAM PADA GURU KIMIA SE-KOTA PONTIANAK Masriani; Husna Amalya Melati; Erlina; Eni Mayasari; Rody Putraa Sartika; Rini Muharini; Hairida; Eny; Enawaty; A. Ifriany; Lukman Hadi; Aldi Tobing; Amanda; Risna Nurhaliman
Jurnal Abdi Insani Vol 13 No 2 (2026): Jurnal Abdi Insani
Publisher : Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/abdiinsani.v13i2.3628

Abstract

Penerapan ecoprint teknik steam sebagai inovasi pembelajaran kimia sangat penting untuk meningkatkan pengetahuan dan keterampilan guru dalam mengajarkan konsep sains berbasis lingkungan. Melalui pelatihan ini, guru kimia di Pontianak diharapkan mampu mengintegrasikan teknik ecoprint ke dalam pembelajaran, sehingga materi kimia menjadi lebih kontekstual, kreatif, dan relevan dengan kehidupan sehari-hari serta menumbuhkan kepedulian terhadap lingkungan. Pelatihan ini bertujuan meningkatkan pengetahuan, keterampilan, dan kesadaran lingkungan guru Kimia di kota Pontianak. Kegiatan Pengabdian Kepada Masyarakat ini diikuti oleh 22 guru Kimia SMA dan SMK  se kota Pontianak.  Kegiatan ini meliputi 3 tahap, yaitu tahap persiapan, pelaksanaan,  dan akhir. Pelatihan Ecoprint teknik steam yang diberikan kepada guru kimia se-Kota Pontianak terbukti sangat efektif dalam meningkatkan pengetahuan, keterampilan, dan sikap peserta terhadap pembelajaran berbasis lingkungan dan kreativitas. Hasil angket menunjukkan bahwa seluruh  peserta pelatihan telah memahami konsep dasar teknik ecoprin. Sebagian besar peserta (95,7%) juga mengetahui bahan alami yang mengandung pigmen warna, seperti tanin dan antosianin, yang penting dalam proses pewarnaan ecoprint. Pengetahuan ini tercermin dari 95,7% peserta menyatakan memahami hubungan antara proses kimia dan hasil pewarnaan pada kain ecoprint  dan 91,3%  memiliki kemampuan menjelaskan tahapan  pembuatan ecoprint secara sistematis. Dari sisi keterampilan, 82,6% peserta merasa mampu mempraktikkan teknik ecoprint dengan bimbingan minimal dan sebanyak 82,6% peserta mengetahui cara merawat hasil karya ecoprint agar warna tetap tahan lama. Seluruh peserta menyatakan pelatihan sangat bermanfaat dan menginspirasi untuk diterapkan dalam pembelajaran di sekolah.
Development of Learning Videos Assisted by Instagram Media on the Reaction Rate Content Tri Patmawati Adriana; Eny Enawati; Eni Mayasari
QUANTUM: Jurnal Inovasi Pendidikan Sains Vol 16, No 1 (2025): April 2025
Publisher : Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/quantum.v16i1.21552

Abstract

Chemistry is the study of matter and the changes that accompany it. Chemical matter is defined as everything that has mass and occupies space. Chemical materials can be single substances (elements) or mixed substances (compounds). Based on the results of an interview with a teacher at SMAN 7, Pontianak revealed that students have difficulty in learning the reaction rate especially in understanding the reaction rate concept, where students can only repeat the definition of the reaction rate without understanding the real meaning so that they tend to rely on memorization alone. The abstract nature of reaction rate content is also one of the reasons why students have difficulty in learning reaction rate content.  The purpose of this study was to develop Instagram media-based learning videos on reaction rate content and to determine the level of validity and students' responses to these learning videos to increase efficient and effective knowledge. This research uses the Research and Development (R&D) approach of the ADDIE model (Analyze, Design, Develop, Implement, Evaluate), with only the Analyze, Design, and Develop stages applied. Data collection techniques used, namely direct communication techniques interviews and indirect communication in the form of validity test questionnaire sheets and wide stundent response test questionnaires, with research instruments in the form of feasibility assessment sheets and student response questionnaires. The results proved that the average percentage of content validity was 95.9%, and media validity was 98%, both with very valid criteria. The average percentage of student responses in the small group test reached 83.3% with very good criteria, while in the large group test it was 91.25%. In addition, the average percentage of teacher responses reached 88%, with very good criteria, thus it can be concluded that the learning video assisted by Instagram media on reaction rate material is declared very feasible to use.
Development Local Culture-Based Science E-Supplements with “Gerakan Kebiasaan Anak Indonesia Hebat” on Additives Substance Dinno Afriza; Hairida; Eni Mayasari
Hydrogen: Jurnal Kependidikan Kimia Vol. 14 No. 2 (2026): April 2026
Publisher : Universitas Pendidikan Mandalika

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33394/hjkk.v14i2.20327

Abstract

Science learning on additive materials in schools has not yet utilized local culture as a learning context, resulting in a gap between students’ real-life experiences and the scientific concepts studied in the classroom. “Gerakan 7 Kebiasaan Anak Indonesia Hebat” carried out by the Ministry of Primary and Secondary Education which is designed as a strategy in building positive habits in learning, especially the habits of liking to teach, eating healthy and nutritious, and socializing. This study aims to develop a science e-supplement based on the local culture of Kapuas Hulu Regency and to examine its feasibility and user responses. The development model used is ADDIE, limited to the Development stage. The research procedures include needs analysis through teacher interviews, design and development of the e-supplement, and validation by material, media, and language experts. Teacher and student responses were collected using questionnaires. The validation results indicate that the e-supplement is categorized as highly feasible, with scores of 95.50% (material), 95.21% (media), and 95.83% (language). Teacher response results reached 91.66%, while student responses in small-scale and large-scale trials reached 97.34% and 98.62%, respectively. These findings show that the local culture-based science e-supplement is easy to use, engaging, and helps improve conceptual understanding. Therefore, the e-supplement is suitable to be used as supplementary teaching material in science learning.
Co-Authors A. Ifriany Agusta, Muhammad Farras Leonasa Aldi Tobing Amanda Andi Ifriany Antonius Ola Bilqis, Adilla Dalilah Dalilah Dinno Afriza Enawaty Eny Eny Enawati Eny Enawaty ERLINA Erlina Erlina Erlina Erlina Erlina*, Erlina Febriani, Melda Febriyani, Roseana Fitri, Rosiana Hafiz, Muhammad Iqbal Abdul Hairida Hairida Hilwannisa, Hilmi Ufairah Husna Amalya Melati Ifriany, A. Ifriany, Andi Ira Lestari Lukman Hadi Mardasela, Tery Maria Ulfah Maria Ulfah Marisa Masriani Masriani . Muhammad Arifin Muhammad Farras Leonasa Agusta Noprianti, Dini Rachmat Sahputra Rachmat Sahputra Rini Muharini Risna Nurhaliman Risya Sasri Rody Putraa Sartika Safitri, Dian Eka Sahputra, Rahmat Salam, Supriatno Sasri, Risya Siahaan, Gorga Josua Chrisvandoli Tri Patmawati Adriana