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All Journal Jurnal Penelitian Pendidikan IPA (JPPIPA) Journal of Mathematics Science and Computer Education
Khodizah, Ayu Tri
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Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Education Materials Science & Nanotechnology Mathematics Physics

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Green Remediation of Used Cooking Oil Using Sugarcane Bagasse: A Sustainable, Green Chemistry Approach Mirah Surya Dewi, Ni Pt. Pande; Khodizah, Ayu Tri
Journal of Mathematics Science and Computer Education Vol 4, No 2 (2024)
Publisher : Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/jmscedu.v4i2.14139

Abstract

Environmental pillars are the foundation of sustainable development, emphasizing waste management solutions like used cooking oil purification. This study assesses used cooking oil quality based on color, odor, water content, free fatty acids, and peroxide value after sugarcane bagasse adsorption over 1, 2, and 3 days. Using a one-group pretest-posttest design, the 3-day treatment yielded optimal results: peroxide value (5.603 meq/kg), water content (0.070%), and free fatty acids (0.13%) decreased significantly, with improved color and odor compared to the control. The study integrates green chemistry principles, including waste prevention, energy efficiency, renewable material use, chemical degradation design, and safer chemical applications. This minimizes hazardous material usage, energy consumption, and environmental impact. Spent bagasse can be transformed into valuable products like compost or biofuel, providing sustainable solutions for managing used cooking oil waste, while reducing pollution and greenhouse gas emissions. The research offers an effective strategy aligned with Indonesia's conservation goals and green chemistry principles. It encourages public participation in local waste management, potentially inspiring innovative approaches for handling other waste types, thereby strengthening sustainability efforts.
Development of Smart Ethno-STEM (System of Mobile Augmented Reality Technology) in Organic Chemistry to Enhance Students’ Metacognitive Skills and Scientific Literacy Prasetyo, Yogo Dwi; Khodizah, Ayu Tri; Saputra, Novan Alkaf Bahraini
Jurnal Penelitian Pendidikan IPA Vol 11 No 12 (2025): December
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v11i12.12998

Abstract

Learning in Stereochemistry still tends to lack contextualization and the integration of technology and ethnosciences. This study aims to develop and evaluate Smart Ethno-STEM (System of Mobile Augmented Reality Technology) as an innovative learning medium in organic chemistry, particularly on stereochemistry topics, to enhance students’ metacognitive skills and scientific literacy. The research employed a Research and Development (R&D) design using the ADDIE model, involving validation, practicality, and effectiveness testing. The data were analyzed using descriptive validation and practicality scores, N-Gain, and MANOVA analysis. Validation results from one media expert and two material experts indicated that the media was categorized as highly valid (average score 4.46). Practicality tests conducted with 16 students showed a very practical use (average score of 4.75). The effectiveness test showed significant improvements in both metacognitive skills and scientific literacy, with N-Gain scores in the high category in the experimental group (metacognition 0.75; literacy 0.72) and in the medium category in the control group (metacognition 0.59; literacy 0.57). MANOVA results confirmed a significant influence of the class factor on both variables simultaneously (Sig. Hotelling’s Trace = 0.013). These findings demonstrate that Smart Ethno-STEM effectively enhances students’ higher-order thinking skills and connects scientific concepts with socio-cultural contexts, offering a contextual and technology-based solution for organic chemistry learning
Co-Authors Mirah Surya Dewi, Ni Pt. Pande Saputra, Novan Alkaf Bahraini Yogo Dwi Prasetyo