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Development of an E-Handbook Based on Research on the Medicinal Plant Premna serratifolia as The Natural Resources of West Kalimantan for High School Students Sari, Pita; Hadiarti, Dini; Kurniasih, Dedeh
Jurnal Kependidikan : Jurnal Hasil Penelitian dan Kajian Kepustakaan di Bidang Pendidikan, Pengajaran, dan Pembelajaran Vol. 10 No. 3 (2024): September
Publisher : LPPM Universitas Pendidikan Mandalika

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33394/jk.v10i3.12306

Abstract

This research aims to develop a comprehensive e-handbook, containing research-based information on the medicinal plant Premna serratifolia as the natural resources of West Kalimantan for high school students. This research used a research and development (R&D) method with an ADDIE model and was conducted in three high schools in West Kalimantan. Research instruments include validation instruments and student response questionnaires. The research data were analyzed using quantitative data analysis. Expert validators in content, media, and language assessed the e-Hanbook, resulting in validation percentages of 85.4% for content, 82.6% for media, and 81.5% for language. The practicality of the e-Hanbook was tested through initial and final field trials, achieving percentages of 80.8% and 87.2% respectively. Consequently, the research suggests that the e-Hanbook on Premna serratifolia medicinal plants is highly suitable and practical for high school students.
Development of a Practical Tool for Renewable Energy Materials in P5 Activities Based on Secang Extract as a Natural Dye Sensitizer in the DSSC Circuit Ridho Sastriwijaya; Dini Hadiarti; Raudhatul Fadhillah
Jurnal Penelitian Pendidikan IPA Vol 11 No 8 (2025): August
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v11i8.12017

Abstract

In this study, a DSSC practice tool based on sappanwood (Caesalpinia sappan L.) extract as a natural dye sensitizer was developed to support renewable energy learning at the senior high school level. This research is categorized as development research, aiming to produce a renewable energy practice tool that is valid and practical. The method used in this study was Research and Development (R&D), adapted from the Thiagarajan 3D model. The results showed that the practice tool based on sappanwood extract as a natural dye sensitizer in the DSSC circuit was declared highly feasible, with an assessment score of 85% from media experts and 86% from material experts.The product trials revealed that the small-group trial achieved a feasibility score of 83%, while the large-group trial reached 86%. Both results were categorized as “highly feasible.” These findings indicate that the DSSC practice tool based on sappanwood extract as a natural dye sensitizer is valid and practical for use in the learning process
METHYLENE BLUE DYE REMOVAL BY ADSORPTION ONTO NATURAL GAMALAMA VOLCANIC SOIL Indra Cipta; Nur Jannah Baturante; Khusna Arif Rakhman; Ilham Mauraji; Dini Hadiarti
Analit : Analytical and Environmental Chemistry Vol. 10, No. 01 April (2025) Analit : Analytical and Environmental Chemistry
Publisher : Jurusan Kimia FMIPA Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/analit.v10i01.194

Abstract

The adsorption of Methylene Blue (MB) dye from aqueous solutions using natural adsorbents derived from Gamalama volcanic soil was investigated in this study. The adsorbent materials were characterized by FTIR, X-ray Diffraction (XRD), and Scanning Electron Microscopy (SEM) analyses, confirming the presence of allophane, halloysite, and kaolinite, which exhibit different morphologies and surface properties. Batch adsorption experiments were conducted to evaluate the effects of pH, contact time, and adsorbent mass on the removal efficiency of Methylene Blue. The results demonstrated that Gamalama volcanic soil adsorbents have a high affinity for Methylene Blue, achieving significant removal rates under optimal conditions. The findings suggest that Gamalama volcanic soil is a promising, low-cost, and environmentally friendly adsorbent for treating dye-contaminated wastewater. This study highlights the potential application of natural volcanic soil as an effective adsorbent in environmental remediation. The optimum MB removal was performed by adsorption condition with pH 6, 20 minutes contact time and 30 mg adsorbent.    
Development of the Acid-Base Microblogs Based on Malay Ethnochemistry to Preserve Culture Utin Dian Anggreni; Dini Hadiarti; Raudhatul Fadhilah
Jurnal Penelitian Pendidikan IPA Vol 9 No 8 (2023): August
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v9i8.4300

Abstract

Perceiving culture in the globalization era is challenge for the Malay community. The best way to solve it is to integrate ethnochemistry into chemistry learning at the school. The research aims to develop acid-base microblogs based on the ethnochemistry of the Malay community. Three Stages Research and Development (TSRD) model was conducted in this study which consists of 3 steps: planning, development, and dissemination. The subjects of this research were the students of XI MIPA class at SMAN 11 Pontianak, SMA Muhammadiyah 1 Pontianak, and MAN 3 Pontianak. The validity assessment and response sheet were used to collect data in this study. The results of the acid-base microblogs based on the ethnochemistry of Malay culture obtained 0.85 of validity from the expert judgment in the very high category. An excellent response was given by the student to the microblog, with a percentage of 82.28%. Based on the study results, the ethnochemistry microblogs have been declared very valid to arouse preserving culture.
Development of Student Handbook on the Extraction of Secondary Metabolites Based on Premna serratifolia Research Shella Auliany; Dini Hadiarti; Rizmahardian Ashari Kurniawan
Jurnal Penelitian Pendidikan IPA Vol 10 No 9 (2024): September
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v10i9.8189

Abstract

This study aims to develop a digital module on the extraction of secondary metabolites based on P. serratifolia research as a self-study resource for students. This study utilized the Thiagarajan 4D development model, which encompasses the stages of definition, design, and development without dissemination. Participants in the study comprised students from Universitas Muhammadiyah Pontianak, Akademi Farmasi Yarsi Pontianak, and Universitas Tanjungpura who had previously studied extraction materials. Subject matter, media, and language experts provided validity scores of 94.69%, 88%, and 84.37%, respectively, resulting in an average validity score of 89.02%, categorizing the student handbook as highly valid. Small and large group trials yielded practicality percentages of 93.81% and 93.69%, respectively, with an average score of 93.75%, indicating the student handbook high practicality. Consequently, the student handbook on secondary metabolite extraction based on P. serratifolia research is deemed highly valid and practical as a self-study resource on the topic.
Pengembangan Modul Berbasis Augmented Reality Pada Materi Ikatan Kimia Di SMA Taman Mulia Pontianak Rizki Bakdhu Wahyu Akbar; Raudhatul Fadhilah; Dini Hadiarti
Jurnal Penelitian Pendidikan IPA Vol 10 No 12 (2024): December
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v10i12.8507

Abstract

Onventional teaching media used by teachers in teaching chemical bonding has not been able to facilitate students in understanding the concept of chemical bonding because the media used are still in two-dimensional form. Therefore, it is necessary to develop three-dimensional teaching media capable of visualizing the concept of chemical bonding, one of which is augmented reality (AR). This study aims to determine the validity and practicality of an AR-based chemical bonding module. The research type used is Borg and Gall's development research model, modified into 7 research stages. The research sample consisted of 30 students selected using purposive sampling technique. The results of material, media, and language validation analysis indicate that the developed AR-based module is valid with validity percentages of 96.66%, 81.47%, and 88.33%, respectively. Practicality analysis using a practicality questionnaire shows that the developed AR-based module is practical with a practicality score of 93.88%. Therefore, the AR-based module is highly suitable as an alternative teaching media for the topic of chemical bonding
Development of Ethnosciene Reels of Ketapang Malay Tribe as Supplementary Learning Resources on Hydrocarbon Compounds Laila Fitri; Raudhatul Fadhillah; Dini Hadiarti
Jurnal Penelitian Pendidikan IPA Vol 11 No 2 (2025): February
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v11i2.8595

Abstract

The habit of the Malay community in using natural materials as fuel can be integrated into chemistry teaching materials in schools. The aim of this research is to assess the validity and practicality of reels as a learning resource and to develop reels based on the ethnoscience of the Ketapang Malay tribe. The research development model used is the Three Stages Research and Development (TSRD) model, which consists of three steps: planning, development, and dissemination. Data collection techniques involve indirect communication using validation sheets and response instruments. The subjects of the research are students from SMA N 1 Sungai Laur. The results of the study indicate that the ethnoscience-based reels of the Malay tribe are valid and practical, with validity and practicality scores of 96.3% and 90.30%, respectively. The reels can be used as an independent, practical, and engaging learning resource that is relevant to students. Therefore, the validity and practicality results of the development of ethnoscience-based reels are expected to serve as an innovative and contextual alternative media for chemistry education in schools.
Development of Ethnosciene Reels of Ketapang Malay Tribe as Supplementary Learning Resources on Hydrocarbon Compounds Laila Fitri; Raudhatul Fadhillah; Dini Hadiarti
Jurnal Penelitian Pendidikan IPA Vol 10 No 10 (2024): October
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v10i10.8596

Abstract

The habit of the Malay community in using natural materials as fuel can be integrated into chemistry teaching materials in schools. The aim of this research is to assess the validity and practicality of reels as a learning resource and to develop reels based on the ethnoscience of the Ketapang Malay tribe. The research development model used is the Three Stages Research and Development (TSRD) model, which consists of three steps: planning, development, and dissemination. Data collection techniques involve indirect communication using validation sheets and response instruments. The subjects of the research are students from SMA N 1 Sungai Laur. The results of the study indicate that the ethnoscience-based reels of the Malay tribe are valid and practical, with validity and practicality scores of 96.3% and 90.30%, respectively. The reels can be used as an independent, practical, and engaging learning resource that is relevant to students. Therefore, the validity and practicality results of the development of ethnoscience-based reels are expected to serve as an innovative and contextual alternative media for chemistry education in schools.
Implementation of FTIR-Based Fingerprinting, Antioxidant Compounds Profiling by UHPLC-Q-Orbitrap HRMS, and Docking Study COVID-19 Inhibitor of Buas-Buas (Premna serratifolia) Leaf Extract from Pontianak Indonesia Dini Hadiarti; Mahwar Qurbaniah; Ely Setiawan; Taufan Hari Sugara
ALCHEMY Jurnal Penelitian Kimia Vol 21, No 1 (2025): March
Publisher : UNIVERSITAS SEBELAS MARET (UNS)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20961/alchemy.21.1.92020.149-161

Abstract

This research aims to profile the active antioxidant compounds from leaf extracts of Buas-buas (Premna serratifolia) growing in Pontianak of West Kalimantan (Indonesia) through a metabolomics approach and their activity as anti-COVID-19 candidates by molecular docking. In this study, P. serratifolia leaves were macerated and fractionated using solvents with different polarities. The extracts were then tested for antioxidant activity using the DPPH method, determined the total phenolic content (TPC), flavonoids (TFC), and steroids (TSC), and analyzed antioxidant the functional groups and compounds by Fourier Transform Infrared spectroscopy (FTIR) and Ultra High-Performance Chromatography UHPLC-Q-Orbitrap HRMS. The functional groups on antioxidant activity were determined by Principal Component Analysis (PCA) and Partial Least Square (PLS) regression. Based on a metabolomics approach, the PCA and PLS analysis shows that hydroxyl was the most active antioxidant from P. serratifolia leaves. UHPLC-Q-Orbitrap HRMS analysis showed the presence of scopoletin, esculetin, 7-hydroxycoumarine, matairesinol, hymecromone, and hexylresorcinol in the water fraction of P. serratifolia leaves. Molecular docking with 4YE6, 1OG5, and 3NRZ shows that matairesinol had the most potential as an antioxidant. Mataresinol and hexyresorcinol are phenolic compounds that have great potential as a COVID-19 inhibitor based on molecular docking with 5R81, 7CMD, and 6M2N.
Metabolomics-Based Profiling of Antioxidant Compounds in Kesum (Polygonum minus) via UHPLC-Q-Orbitrap HRMS as Potential Anti-SARS-CoV-2 Candidates: An In Silico Approach Iche Azani; Dini Hadiarti; Arni Arni; Nur Aulia Fitri
Biology, Medicine, & Natural Product Chemistry Vol 15, No 1 (2026)
Publisher : Sunan Kalijaga State Islamic University & Society for Indonesian Biodiversity

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14421/biomedich.2026.151.1321-1327

Abstract

Kesum or Polygonum minus (P. minus) is well-known for its high antioxidant content and potential as a therapeutic agent. This study aimed to identify active compounds in P. minus leaf extracts that serve as antioxidants and SARS-CoV-2 inhibitor candidates using metabolomics approach. P. minus leaves were extracted with ethanol and subsequently fractionated using n-hexane, ethyl acetate, and water. The ethyl acetate fraction exhibited the highest antioxidant activity as measured by the DPPH method. Further analysis using UHPLC-Q-Orbitrap HRMS identified several compounds, including 3-hydroxybenzoic acid, quercetin-3betha-D-glucoside, tectoridin, apigenin, hispidulin, and (±)-usnic acid. These compounds were subsequently evaluated in silico by molecular docking against the 1OG5 and 7CMD target proteins. The results demonstrated strong interactions between these compounds and the protein active sites, supporting their potential as both antioxidants and inhibitors of SARS-CoV-2. This study suggests that P. minus is a promising source of bioactive compounds for development in herbal-based therapies in West Kalimantan.