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All Journal JBIO: jurnal biosains (the journal of biosciences) Elkawnie JURNAL PENGABDIAN KEPADA MASYARAKAT Bio Ilmi: Jurnal Pendidikan Jurnal Biolokus: Jurnal Penelitian Pendidikan Biologi dan Biologi BIOEDUSAINS: Jurnal Pendidikan Biologi dan Sains AMALIAH: JURNAL PENGABDIAN KEPADA MASYARAKAT Didaktika: Jurnal Kependidikan Prosiding Seminar Nasional Biologi, Teknologi dan Kependidikan (Biotik) Al-Musannif
Restuati, Martina
Universitas Negeri Medan
Agriculture, Biological Sciences & Forestry Arts Humanities Biochemistry, Genetics & Molecular Biology Dentistry Earth & Planetary Sciences Education Energy Engineering Environmental Science Immunology & microbiology Languange, Linguistic, Communication & Media Library & Information Science Materials Science & Nanotechnology Mathematics Medicine & Pharmacology Neuroscience Nursing Public Health Social Sciences Other

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Analisis Ekstrak Etanol Tangkai Daun Buasbuas (Premna pubescens) Menggunakan Gas Chromatography Mass Spectrophotometer (GCMS) Diky Setya Diningrat; Martina Restuati; Kusdianti Kusdianti; Ayu Nirmala Sari; Erly Marwani
Elkawnie Vol. 4 No. 1 (2018)
Publisher : Faculty of Science and Technology Universitas Islam Negeri Ar-Raniry

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22373/ekw.v4i1.3075

Abstract

Buasbuas (Premna pubescens) is a plant that is traditionally known to have medicinal properties. This study aims to determine the content of bioactive compounds contained in the petiole by Gas Chromatography Mass Spectrophotometer (GCMS) method. Preparation of ethanol extract of petiole using maceration method with 96% ethanol solvent. The study used gas chromatographic tools and mass spectra which were evaluated using MASSLAB program. The data obtained from the GCMS machine is then analyzed using the NCBI database pubchem software (https://pubchem.ncbi.nlm.nih.gov/). The results of this study indicate that the content of bioactive compounds on the petioles of buasbuas more than 50 libraries contains about 150 species of compounds with a range of RT and% area respectively 4.684 to 28.155 and 0.16 to 15.56%. The content of bioactive compounds shown this data indicates that very large potential of buasbuas plants to be explored and exploitation as a nutritious plant. The results of this study can be used as the foundation in the development program of the potential utilization of bioassemblance of buasbuas plants. In further research it is necessary to analyze the other parts of the plant and make comparisons to complete the available databases.
Pengembangan Booklet Jenis Echinodermata Berbasis Potensi Lokal Pantai Pandaratan untuk Meningkatkan HOTS Siswa Kelas X SMA: Development of a Local Potential-Based Echinoderm Booklet from Pandaratan Beach to Enhance the Higher-Order Thinking Skills of Grade 10 Senior High School Students Putri Nora; Martina Restuati; Syahmi Edi
Al-Musannif Vol. 8 No. 1 (2026)
Publisher : Madrasah Tsanawiyah DDI Cilellang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.65046/msn.v8i1.53

Abstract

Students' Higher-Order Thinking Skills (HOTS) remain relatively low, while the utilization of local potential as a biology learning resource is still limited. This study aimed to develop an Echinoderm diversity booklet based on the local potential of Pandaratan Beach and examine its effectiveness in enhancing students' HOTS. The study employed the 4D Research and Development model consisting of Define, Design, Develop, and Disseminate stages. Data were collected using validation sheets, response questionnaires, and HOTS tests. The booklet was rated highly feasible by material experts (92.96%), instructional design experts (94.31%), and graphic design experts (86.02%). Teacher and student responses were highly positive, with scores of 99.00% and 97.04%, respectively. The experimental class obtained a higher posttest mean score (83.80) than the control class (73.95), with N-Gain values of 0.74 (high category) and 0.59 (moderate category), respectively. An independent samples t-test revealed a significant difference between the two groups (p < 0.05). These findings indicate that the booklet is both feasible and effective in improving students' HOTS. Therefore, the booklet can serve as an alternative local potential-based learning resource to support contextual biology learning in senior high schools.
Development of Student Worksheets (LKPD) based on the 5E Learning Cycle on the Material of Locomotor Systems in Grade XI of Senior High School Angelica Nababan; Martina Restuati
Bioilmi: Jurnal Pendidikan Vol. 11 No. 2 (2025): Bioilmi: Jurnal Pendidikan
Publisher : Program Studi Pendidikan Biologi Fakultas Ilmu Tarbiyah dan Keguruan Universitas Islam Negeri Raden Fatah Palembang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.19109/bioilmi.v11i2.32044

Abstract

This study was conducted to address issues in schools, such as students' lack of understanding of the material, the use of conventional learning models, and limited use of learning media. The main goal of the research was to develop a valid, practical, and effective LKPD  based on the Learning Cycle 5E model for biology lessons, specifically on the topic of the Movement System for 11th grade students at Kartika I-2 High School in Medan. This research followed the 4D development model, with data collected through observations, interviews, tests, and questionnaires.The study used several data collection instruments: teacher interview sheets, material, learning, and media validation questionnaires, teacher and student response questionnaires, and pretest and posttest questions. The results showed that the validation by material experts resulted in an average percentage of 90.6%, classified as "very feasible." Validation by learning experts showed 84.6%, also categorized as "very feasible," while media expert validation resulted in 90%, considered very feasible.The practicality of the media was confirmed by education practitioners, who gave it a 93% rating of "very practical," and the student response questionnaires showed a 92% rating of "very practical." The N-Gain test from pretest and posttest scores showed an N-Gain of 0.75, indicating effectiveness.In conclusion, the LKPD based on the Learning Cycle 5E model is highly valid, practical, and effective for biology learning, with positive feedback from both teachers and students and significant improvements in learning outcomes.
Co-Authors Angelica Nababan Ani Sutiani Ashar Hasairin Ayu Nirmala Sari Diningrat, Diky Setya Erly Marwani Erly Marwani, Erly Gita Widiyastuti Hasruddin Kusdianti Kusdianti Kusdianti Kusdianti Lasrini Lasrini Melva Silitonga Naimatussyifa Daulay Nanda Pratiwi Pasar Maulim Silitonga Poppy Audina Nasution Pulungan, Ahmad Shafwan S Putri Nora Rahmad Gultom Rahmad Gultom Sonya Adelina Sipayung Sri Enita Ginting Syahmi Edi Syahputra, Ricky Andi Tumiur Gultom Yuli varananda Hasibuan