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All Journal Chemistry Education Practice BIOCITY: Journal of Pharmacy Bioscience and Clinical Community
Eka Nurul Qomaliyah
Universitas Negeri Malang
Biochemistry, Genetics & Molecular Biology Education Health Professions Immunology & microbiology Medicine & Pharmacology Public Health

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Perbandingan Eksperimental Parafin dan Palm Wax terhadap Kualitas Lilin Aromaterapi Melati Aniza Istichomah; Febiana Rustiana Dewi; Eka Nurul Qomaliyah; Fika Erdina Azzahro; Intan Nadia; Muhammad Huda Najaya
Biocity Journal of Pharmacy Bioscience and Clinical Community Vol 4 No 2 (2026): Biocity: Journal of Pharmacy Bioscience and Clinical Community
Publisher : Universitas Bumigora

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30812/biocity.v4i2.6267

Abstract

This study aims to compare the physical and organoleptic characteristics of aromatherapy candles made from paraffin and palm wax, both infused with jasmine essential oil (Jasminum sambac). Using a laboratory experimental approach, two formulas were prepared: Formula 1 (paraffin) and Formula 2 (palm wax). Each formulation was mixed with cooking oil in a 1:1 ratio and supplemented with 25 mL of jasmine essential oil. Quality was assessed by 11 panelists through organoleptic tests (color, shape, texture, and aroma) and physical tests (melting point and burning time) in accordance with SNI 0386-1989-A/SII 0348-1980 standards. Results showed that palm wax-based candles had a higher melting point (57oC), longer burning time (±270 minutes), and were preferred by panelists, especially for aroma and texture, compared to paraffin wax candles (melting point 54oC, burning time ±180 minutes). In summary, palm wax is better suited for aromatherapy candles due to its superior physical properties, sensory qualities, and extended burn time.
Development of Case-Based Electronic Student Worksheets (E-LKPD) on Carbohydrate Metabolism Disorders for Science Education Students Eka Nurul Qomaliyah; Habiddin Habiddin
Chemistry Education Practice Vol. 8 No. 2 (2025): Edisi November
Publisher : FKIP University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/cep.v8i2.10128

Abstract

 Biochemistry is one of the courses that encompasses broad and complex material, including metabolism. Students’ understanding of carbohydrate metabolism is often limited to theoretical and memorization aspects. Therefore, it is necessary to develop learning media that support interactive and more meaningful learning. This study aims to develop a case-based Electronic Student Worksheet (E-LKPD) on carbohydrate metabolism disorders for students in the Science Education Program. The research employed the Research and Development (R&D) method with the development stages of Define, Design, and Develop. Data were obtained from expert validation as well as user response questionnaires involving 25 science education students. The results of material validation, language validation, and output validation showed “high validity and feasibility,” while user questionnaires indicated an average 90% “very good” response and agreement to use the E-LKPD in Biochemistry learning. Thus, the case-based E-LKPD on carbohydrate metabolism disorders is considered feasible to be used as a learning medium in Biochemistry courses, particularly in supporting case-based and student-centered learning.
Co-Authors Aniza Istichomah Febiana Rustiana Dewi Fika Erdina Azzahro Habiddin Intan Nadia Muhammad Huda Najaya