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All Journal Jurnal Penelitian dan Pembelajaran IPA Jurnal Biologi Tropis UNESA Journal of Chemical Education
Jufri, Abdul Wahab
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Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemistry Computer Science & IT Education Immunology & microbiology Other

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Development of Laboratory Module of Isolation Trimyristin from Nutmeg (Garcinia mangostana) to Support Meaningful Learning in Natural Product Chemistry Course Hakim, Aliefman; Jamaluddin, Jamaluddin; Jufri, Abdul Wahab; Loka, I Nyoman; Sukib, Sukib; Mahmudah, Saripatul
Jurnal Penelitian dan Pembelajaran IPA Vol 5, No 1 (2019): Available Online in May 2019 (Web of Science Indexed)
Publisher : Department of Science Education, Universitas Sultan Ageng Tirtayasa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30870/jppi.v5i1.4906

Abstract

This research aimed to develop laboratory module of isolation trimyristin from nutmeg (Garcinia mangostana) to support natural product chemistry course. The research design used 4D model (Define, Design, Develop, and Disseminate). The population in this study covers all students of Chemistry Education Program, University of Mataram who took natural product course. Meanwhile there were four students who became the sample in this study. The four students were taken randomly and became respondents for a limited trial. The results showed that the validity of three validators obtained by using Aiken index was V = 0.7 indicated that the natural chemistry laboratory module about trimyristin isolation from nutmeg was valid and feasible to use. Practicality can be seen from the responses of students and lecturers who showed a positive response with the average of all module component practicability of 83%. Based on the data, it can be concluded that the natural chemistry labortory module of isolation trimyristin from nutmeg was feasible and practical, so it can be used in the learning process.
THE INFLUENCE OF THE NATURAL PRODUCT PRACTICUM ON DECISION MAKING SKILLS Hakim, Aliefman; Jufri, Abdul Wahab; Jamaluddin, Jamaluddin; Septiani, Devi Ayu; Ningsih, Baiq Nila Sari; Supriadi, Supriadi
UNESA Journal of Chemical Education Vol. 11 No. 2 (2022)
Publisher : Universitas Negeri Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (416.708 KB) | DOI: 10.26740/ujced.v11n2.p136-142

Abstract

The study of secondary metabolites is the core of Natural Product Chemistry. The process of isolating secondary metabolites from Sasambo plants, which are medicinal plants used by indigenous tribes in West Nusa Tenggara province, Indonesia, has the potential to be integrated into the Natural Product Chemistry Practicum. Students learn how to extract, fractionate, purify, and identify the structure of secondary metabolites through Natural Product Chemistry Practicum. With various alternative actions related to the process of isolating secondary metabolites, these laboratory exercises can be utilized to help students improve their decision-making skills. This study aims to investigate the impact of Natural Product Chemistry Practicum Based on Medicinal Plants Sasambo (NPP-MPS) on students' decision-making skills. This is quasi-experimental research with nonequivalent control group pretest-posttest research design. The participants are 63 students who enrolled in 6th semester students of the chemistry education department at one of the state universities in West Nusa Tenggara, Indonesia, for the 2019/2020 academic year, which were divided into experimental and the control classes. The findings show that the NPP-MPS does positively influences students' decision-making skills.
Diversity of Fiddler Crab (Uca spp.) in The Mangrove Area of Gerupuk Beach Central Lombok Susanti, Yeni; Jufri, Abdul Wahab; Syukur, Abdul
Jurnal Biologi Tropis Vol. 25 No. 2 (2025): April-Juni
Publisher : Biology Education Study Program, Faculty of Teacher Training and Education, University of Mataram, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jbt.v25i2.9107

Abstract

The great influence that ball crabs have on changes in the physical and biochemical aspects of the environment so that they become biota that inhabit microhabitats. Mangrove ecosystem, this can have an impact on the quantity and diversity of fiddler crab species (Uca spp.). One of the coastal locations of Central Lombok is quite large, namely Gerupuk Beach. The purpose of this study was to diversity of fiddler crabs and distribution pattern in the mangrove area of Gerupuk Beach, Central Lombok and to see the validity of the learning videos in this study. The quadratic transect approach was used to conduct the field study from December 2024 to February 2025. Convenience was used to decide the research stations. There were 247 fiddler crabs (Uca spp.) in all stations, according to the results. These individuals were divided into four subgenus and included seven different species: Uca perplexa, Uca triangularis, Uca tetragonon, Uca crassipes, Uca bellator, Uca dussumeiri, and Uca forcipata. The three stations' diversity (H'), which was classified as medium level, ranged from 1.318 to 1.897. The evenness index (E) ranged from 0.677 to 0.975, falling within the relatively even range. Additionally, fiddler crabs' dominance index (C) falls between 0.156-0.310 for the low dominance category.
Co-Authors Abdul Syukur Aliefman Hakim I Nyoman loka Jamaluddin Jamaluddin Mahmudah, Saripatul Ningsih, Baiq Nila Sari Septiani, Devi Ayu Sukib, Sukib Supriadi Supriadi Yeni Susanti