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Laboratory Assessment of Nyamplung Seeds (Calophyllum Inophyllum Linn) Base Cosmetic Products Yusran Khery; Aliefman Hakim; Joni Rokhmat; AA Sukarso; Husnul Hatimah; Febriana Lidia Wati
Jurnal Penelitian Pendidikan IPA Vol 10 No 8 (2024): August
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v10i8.9050

Abstract

The development of the cosmetics industry in Indonesia is currently very rapid with average market growth reaching 9.67 % per year. The high market potential gives rise to tight business competition in the cosmetics industry, thus encouraging manufacturers to continue to innovate to create new product variations to meet society's demands for cosmetics as a complement to an attractive everyday appearance. This study aims to evaluate the physical characteristics of facial masks, body scrubs and sunscreens from Nyamplung (Calophyllum inophyllum) seed extract at various concentrations (5%, 10%, 15%). The test results showed that the three preparations met the standard physical property test parameters (organoleptic, pH, viscosity, spreadability, etc.). The facial mask formula with 10% extract was most liked by the panelists. Body scrub and sunscreen formulas with 10-15% extract also provide the best physical test results. The SPF value of sunscreen increases with increasing extract concentration up to the ultra category (SPF 17.42 at 15%). This study concludes that Nyamplung seed extract has the potential to be used as a natural ingredient for facial masks, body scrubs and sunscreen with an optimum concentration of 10-15%. Further research is needed regarding antioxidant activity and product stability testing. Overall, the three cosmetic preparations from Nyamplung seed extract show good prospects for development by paying attention to the best extract concentration of each product
Systematic Literature Review (SLR): Integrated Problem-Based Learning (PBL) Model for Ecotourism to Enhance Scientific Literacy and Environmental Awareness Khaerus Syahidi; A. Wahab Jufri; Aris Doyan; Kosim Kosim; Joni Rokhmat; AA Sukarso
Jurnal Penelitian Pendidikan IPA Vol 10 No SpecialIssue (2024): Science Education, Ecotourism, Health Science
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v10iSpecialIssue.9578

Abstract

The problem-based learning (PBL) model is a form of learning that emphasizes the learning process and developing problem-solving skills. The low level of environmental awareness is increasingly worrying. Ecological awareness, in this case ecotourism, is decreasing along with technological developments. For this reason, scientific literacy and environmental awareness are needed, especially in character formation. This article research conducted a systematic literature review using PRISMA approach, namely carrying out a synthesis of studies from articles on the theme of the ecotourism-integrated problem-based learning (PBL) model to increase scientific literacy and environmental awareness. The articles used in this paper are from Google Scholar, scopus and science direct with the application of proportional sampling techniques, 15 of the 72 articles that meet the inclusion criteria, the year of publication between 2020 until 2024, the languages used are Indonesian and English, the research subject is Problem-Based Learning (PBL). The research results show that PBL has positive potential in increasing scientific literacy and environmental awareness. Both the use of the PBL model directly and with integration show an increase in scientific literacy and concern for the environment
Analysis of The Science Experiment of Colour Mixing from Natural Materials in Group A Children at Aisyiyah 1 Cakra Kindergarten Zalza Aprilian Syahbi; Najwa Tussholihah; Lale Dewi Nurlita Safitri; Aa Sukarso
Indonesian Journal of Educational Innovation Vol. 1 No. 2 (2025): May - August
Publisher : Yayasan Siti Widhatul Faeha Salahudin Syawal

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Science learning in early childhood can be enhanced through meaningful, hands-on activities. This study aims to analyze the implementation of a science experiment involving colour mixing using natural materials with children in Group A at Aisyiyah 1 Cakra Kindergarten. The research employed a descriptive qualitative method with simple activity-based science experiments. The subjects consisted of 15 children aged 4 to 5 years. Data were collected through observation, interviews, and documentation, then analyzed descriptively. The results showed that science experiments using natural materials encouraged children to verbally express their observations and recognize various colours and ingredients such as purple, red, turmeric, and pandanus leaves. These activities stimulated children's creativity and supported their social-emotional development through imagination, task-sharing, discussions, and collaboration in small groups. The study concludes that science experiments based on natural materials are practical in enriching early childhood learning. It is recommended that educators implement similar activities to improve children's cognitive, language, and social skills through active and collaborative learning experiences.
Initial Psychometric Assessment of a Multidimensional Concept Test Addressing Ethnomedicine, Phytochemistry, and DPPH–IC50 Antioxidant Assay Analysis Faizul Bayani; Joni Rokhmat; Aliefman Hakim; AA Sukarso
International Journal of Contextual Science Education Vol. 4 No. 2 (2026): April - June 2026 (In Press)
Publisher : Postgraduate Program, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/ijcse.v4i2.1617

Abstract

Multidisciplinary training involving ethnomedicine and ethics, phytochemistry, and antioxidant bioassay analysis requires students to integrate normative reasoning, chemical concepts, and quantitative data analysis. Therefore, foundational competency and assessment quality must be established before diagnostic application. This study evaluated the first psychometric effectiveness of a multidomain idea test and outlined pre-intervention baseline performance across the three domains. The examination was administered to fifth-semester undergraduate pharmacy students enrolled in the Phytochemistry course at the Faculty of Health and Science, UNIQHBA Bagu. A 28-item mixed-format assessment, comprising multiple-choice, constructed-response, and numerical items (maximum score of 32), was administered to N = 41 pupils. Subsequently, descriptive statistics and indices from Classical Test Theory were computed, including Cronbach's alpha, item difficulty (p), D27 discrimination, and adjusted item-total correlations. The most challenging and simplest collections of objects were employed to encapsulate the extreme items. The average total score was 19.90 out of 32 (62.20% ± 13.05%), the median was 20, the range was 11 to 29, and 9 students (about 22.0%) achieved the ≥70 criterion. The performance in the domain was inconsistent. Ethnomedicine and ethics achieved a score of 7.88 ± 1.25 (78.80% of the maximum), phytochemistry received 7.29 ± 2.15 (72.90%), and DPPH–IC50 interpretation got 4.73 ± 2.54 (39.40%). The reliability was acceptable (alpha = 0.756), but the item diagnostics revealed floor and ceiling effects, along with DPPH–IC50 items that were notably challenging. The technique is suitable for initial diagnostic profiling and highlights DPPH–IC50 quantitative interpretation as the main baseline gap, thereby promoting targeted scaffolding and item adjustment to improve differentiation across the ability spectrum