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Biocaster : Jurnal Kajian Biologi
Published by Lembaga Pendidikan, Penelitian, dan Pengabdian Kamandanu
ISSN : 28083598     EISSN : 2808277X     DOI : https://doi.org/10.36312/biocaster
Core Subject : Science, Education, Agriculture,
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Education Immunology & microbiology
Biocaster : Jurnal Kajian Biologi (B : JKB), focus to bridge the gap between research and practice, providing information, ideas and opinion, in addition to critical examinations of advances in biology research, teaching, and learning. Through the coverage of policy and curriculum developments, the latest results of research into the teaching, learning and assessment of biology are brought to the fore. Biocaster : Jurnal Kajian Biologi (B : JKB), receiving and publishing article in the form of research and review (scientific article) in the field of biology education and utilization of biological research in teaching and learning. Each article must be linked to the theme "21st century skills in biology education" and / or "Efforts to support the achievements of the goals set forth in the Sustainable Development Goals (SDGs) through biology education". All articles are published in English and under go a peer-review process. The scope of Biocaster : Jurnal Kajian Biologi (B : JKB), is focused on biology education research/review both in topics covered as well as disciplinary perspective : 1) Biology teaching and learning materials at all education levels; 2) Pure Research of Biology developed or studied to the sources, materials, or instructional media Biology (using the Research and Development paradigm/R&D); 3) Curriculum of Biology Education at all education levels; 4) Quasi-experiment, Class Action Research (CAR), and Lesson Study in Biology teaching and learning; 5) Other Qualitative Research of Biology Education; 6) Biology Learning Evaluation/Assessment; 7) Teacher Professional Issues/Trends in Biology Education; and 8) Environmental education.
Arjuna Subject : Ilmu Pertanian dan Biologi (Semua) - Ilmu Pertanian dan Biologi (Lain-Lain)
Articles 166 Documents
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Efektivitas Antibakteri Ekstrak Daun Jengkol (Pithecellobium jiringa) terhadap Pertumbuhan Salmonella typhimurium: Studi In Vitro Menggunakan Metode Difusi Cakram Rahayu, Kun Mardiwati; Chairani, Anastasia
Biocaster : Jurnal Kajian Biologi Vol. 5 No. 3 (2025): July
Publisher : Lembaga Pendidikan, Penelitian, dan Pengabdian Kamandanu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36312/biocaster.v5i3.477

Abstract

Salmonella typhimurium bacterial infection remains one of the main causes of gastrointestinal diseases, and cases of resistance to conventional antibiotics are increasing. This encourages the search for alternative therapies based on natural ingredients, one of which is jengkol leaves (Pithecellobium jiringa) which are known to contain antibacterial compounds. This study is an in vitro experimental study aimed at evaluating the antibacterial effectiveness of ethyl acetate extract of jengkol leaves (Pithecellobium jiringa) against the growth of Salmonella typhimurium using the Kirby-Bauer disc diffusion method. Four extract concentrations (10%, 20%, 40%, and 80%) were tested against bacterial suspensions with chloramphenicol as a positive control, and DMSO as a negative control. Data were analyzed using one-way ANOVA and continued with Duncan's test to determine significant differences between treatments. The results showed a significant increase in the diameter of the inhibition zone as the extract concentration increased with the highest effectiveness at a concentration of 80% (mean inhibition zone 16.07 mm; strong category). Analysis shows that active compounds, such as flavonoids, tannins, and saponins, work through cell wall damage and bacterial membrane permeability. These findings indicate that jengkol leaf extract has potential as a natural antibacterial agent against gram-negative bacteria such as Salmonella typhimurium and is worthy of further development in phytopharmaceutical-based infection control efforts.
Studi Literatur: Strategi Penguatan Literasi Lingkungan pada Peserta Didik di Sekolah Pohan, Indah Ramadhani; Mahardika, Nabila; Susanti, Rahmi; Amizera, Susy
Biocaster : Jurnal Kajian Biologi Vol. 5 No. 3 (2025): July
Publisher : Lembaga Pendidikan, Penelitian, dan Pengabdian Kamandanu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36312/biocaster.v5i3.482

Abstract

Low environmental literacy is caused by a lack of environmental literacy reinforcement, necessitating strategies through four aspects of environmental literacy. This study aims to explore strategies for strengthening students' environmental literacy in schools. This study used a literature review method by reviewing 12 articles from the Google Scholar and Garuda databases published between 2021 and 2024. Data analysis was conducted by identifying patterns, differences, and potential reinforcement strategies. Based on the results of the journal review, there are differences in reinforcement strategies at the three levels of education. At the elementary school level, the strategy focuses on introducing students to the environment to foster environmental awareness. Furthermore, at the junior high school level, students are directed to further develop understanding and skills through environmental project activities. Then, at the senior high school level, students are directed to further strengthen environmental literacy through concrete action activities related to the environment.
Pengaruh Kombinasi Ekstrak Daun Singkong dan Singkil terhadap Serangan Hama Kangkung Darat Ginting, Selvia Teodora Br; Lumowa, Sonja V. T.; Masitah, Masitah; Makkadafi, Suparno Putera
Biocaster : Jurnal Kajian Biologi Vol. 5 No. 3 (2025): July
Publisher : Lembaga Pendidikan, Penelitian, dan Pengabdian Kamandanu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36312/biocaster.v5i3.483

Abstract

This study aims to test the effectiveness of the combination of cassava leaf extract Adira 1 (Manihot esculenta Crantz) and singkil leaves (Premna pubescens Blume) as a botanical pesticide against the intensity of insect pest attacks on land spinach (Ipomoea reptans Poir). The study was conducted from March to April 2025 in Girimukti Village, Penajam District, Penajam Paser Utara Regency. This study used an experimental method with a one-factor Completely Randomized Design (CRD) consisting of five concentration treatment levels (0%, 20%, 35%, 50%, and 65%), each repeated five times, so that there were 25 experimental units. The parameters observed were the level of leaf damage due to pest attacks which were measured weekly. Data were analyzed using one-way Analysis of Variance (ANOVA), and continued with the Least Significant Difference (LSD) test at a significance level of 5%. The results of the analysis showed that the extract concentration treatment had a significant effect on reducing the intensity of pest attacks. Treatment with a concentration of 65% showed the highest effectiveness in reducing leaf damage due to pest attacks compared to other treatments. The conclusion of this study is that the combination of cassava leaf extract and singkil leaf has the potential to be an effective botanical pesticide and can be an alternative to chemical pesticides in sustainable agricultural systems.
Pengaruh Implementasi Pembelajaran Berbasis AR Model Pembelajaran PjBL terhadap Keterampilan Bertanya dan Berpikir Kritis Siswa Materi Sistem Reproduksi Kelas XI SMA Negeri 14 Samarinda Ramadhani, Salsabila Royani Putri; Masitah, Masitah; Herliani, Herliani; Rambitan, Vandalita Magdalena Maria
Biocaster : Jurnal Kajian Biologi Vol. 5 No. 3 (2025): July
Publisher : Lembaga Pendidikan, Penelitian, dan Pengabdian Kamandanu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36312/biocaster.v5i3.485

Abstract

This study aims to test the effectiveness of the use of Augmented Reality (AR) technology in the Project Based Learning (PjBL) model on improving students' questioning and critical thinking skills. The method used is a quasi-experimental method with a non-equivalent control group design. The subjects of the study were students of grade XI SMAN 14 Samarinda who were divided into an experimental class and a control class, each consisting of 20 students. The research instruments used were essay tests, observation sheets, and documentation. The data analysis techniques used were descriptive statistics (mean and standard deviation), N-Gain test, t-test (Independent Sample T-Test), and Normality & Homogeneity test using SPSS 25 for Windows. The results of the analysis showed a more significant increase in skills in the experimental class compared to the control class. The N-Gain value of the experimental class' questioning skills was 0.46 (moderate category), while the control class was 0.21 (low). For critical thinking, the experimental class obtained 0.51 (moderate), higher than the control class 0.33 (moderate). These findings indicate that AR integration in PjBL effectively improves questioning and critical thinking skills, and contributes to 21st century learning innovation.
Kearifan Lokal Roko Molas Poco dalam Perspektif Ekologi dan Konservasi Alam (Kajian Etnis Manggarai) Ekaputra, Paulus Rudirudolof; Ngama, Yulita Erlina; Lidi, Maria Waldetrudis
Biocaster : Jurnal Kajian Biologi Vol. 5 No. 3 (2025): July
Publisher : Lembaga Pendidikan, Penelitian, dan Pengabdian Kamandanu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36312/biocaster.v5i3.490

Abstract

This study examines the Roko Molas Poco Ritual as a form of local wisdom from an ecological and nature conservation perspective. The purpose of this study is to examine in depth the ecological values in the Roko Molas Poco traditional rite. This tradition is a traditional practice that contains inherited spiritual, social, and ecological values. This study uses a qualitative descriptive approach with data collection techniques through literature studies and interviews with traditional leaders. Data are analyzed through the process of data reduction, data presentation, verification, and drawing conclusions to obtain in-depth and contextual meaning. The results show that at each stage of the Roko Molas Poco contains symbols that depict environmental ethics and traditional conservation efforts, including the selection of the main wood (siri bongkok), the Ela Racang Cola ritual, the carrying of siri bongkok, the Ela Hambor Haju ritual, and the installation of siri bongkok. The Roko Molas Poco ritual has relevance in environmental education and nature conservation, namely in learning environmental values and ethics. This ritual instills the noble values of respect, appreciation, responsibility, and an awareness of human dependence on nature as a source of life. Thus, Roko Molas Poco serves as a preventive and participatory conservation instrument. This study recommends integrating the ecological values of Roko Molas Poco into environmental education curricula and community-based environmental conservation programs.
Pengaruh Pemberian Stigmasterol Daun Beluntas (Pluchea indica) terhadap Kerusakan Histologi Hati Tikus Putih (Rattus novergicus) Jantan sebagai Sumber Belajar Biologi Zahidah, Ashfa; Susetyarini, Eko; Permana, Tutut Indria; Nurrohman, Endrik; Husamah, Husamah
Biocaster : Jurnal Kajian Biologi Vol. 5 No. 3 (2025): July
Publisher : Lembaga Pendidikan, Penelitian, dan Pengabdian Kamandanu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36312/biocaster.v5i3.491

Abstract

The implementation of a healthy lifestyle with a “back to nature” approach has become a global trend, marked by the increasing consumption of natural-based medicines which are considered relatively safer compared to synthetic drugs. The beluntas plant (Pluchea indica L.) is known to contain active compounds such as alkaloids, tannins, and flavonoids, including stigmasterol which has the potential as a pharmacological agent. This study aims to determine the effect of administering stigmasterol from beluntas leaves at various doses on liver histological damage. The study was conducted at the Biomedical Laboratory of the Faculty of Medicine, University of Muhammadiyah Malang for 28 days. The type of study used true experiment research with a RAL experimental design, consisting of four groups and six replications. The doses of each treatment were P1 (0.125 mg/kgBW), P2 (0.25 mg/kgBW), P3 (0.5 mg/kgBW), and the control group. The results of the one-way ANOVA test showed that the data on the effect of the administration of stigmasterol from beluntas leaves showed significant differences in liver cell damage in male white rats (Rattus novergicus) in parenchymatous degeneration (p = 0.010), in hydropic degeneration (p = 0.000), in karyorrhexis cells (p = 0.020), in karyolysis cells (p = 0.000), and in inflammatory cells (p = 0.021). However, the results of the one-way ANOVA test showed no significant effect on the administration of stigmasterol to pyknosis cells (p = 0.409 > 0.05). Meanwhile, the administration of stigmasterol in treatment 1 effectively reduced hydropic and prenchymatous degeneration but actually increased damage to karyolysis cells, karyorrhexis cells and inflammatory cells. This study of the effect of stigmasterol from beluntas leaves on liver histology can be used as a source of learning Biology in phase F in SMK Kesehatan class XI Pharmacology, especially in understanding drugs related to disorders of the body's system.
Pengaruh Penggunaan Brain Based Learning Berbantuan Wordwall terhadap Keterampilan Proses Sains dan Hasil Belajar Siswa Adzilla, Rosita Aulia; Herliani, Herliani; Rambitan, Vandalita Magdalena Maria; Masitah, Masitah; Akhmad, Akhmad
Biocaster : Jurnal Kajian Biologi Vol. 5 No. 3 (2025): July
Publisher : Lembaga Pendidikan, Penelitian, dan Pengabdian Kamandanu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36312/biocaster.v5i3.495

Abstract

Brain Based Learning is an approach based on how the human brain works. This model creates a learning atmosphere that is in harmony with the way the brain naturally processes information, with the hope of increasing student participation and their learning outcomes. In its implementation, the Brain Based Learning model is combined with the use of Wordwalls as a learning aid. Wordwall is a technology-based platform that offers a variety of user-friendly quizzes, games, and activities. This study aims to determine the effect of the use of the Brain Based Learning model and Wordwalls on science process skills and student learning outcomes. This type of research is a quasi-experimental study using a Pretest-Posttest Control Group Design. The research instrument uses a test, with 10 essay questions, 5 questions to measure science process skills, and 5 questions to measure student learning outcomes. The sampling technique in this study uses the Purposive Sampling technique. To analyze the data, the researcher used the t-test with a significance level of 0.05. The results of the analysis show that the t-test obtained a sig. A 2-tailed test of 0.00 (0.00<0.05) for both variables indicates an effect of the Brain-Based Learning model assisted by Wordwall media on the science process skills and learning outcomes of 11th-grade students at SMA Negeri 13 Samarinda on the human sensory system topic.
Analisis Korelasi Neutrophil-Lymphocyte Ratio (NLR) dengan Indikator Komplikasi Makrovaskular dan Mikrovaskular pada Diabetes Melitus Tipe 2 Hasanah, Fathul Hidayatul; Wahyuni, Sri; Primartati, Danny Meganingdyah; Fatmariza, Aulia Risqi; Sari, Fita
Biocaster : Jurnal Kajian Biologi Vol. 5 No. 3 (2025): July
Publisher : Lembaga Pendidikan, Penelitian, dan Pengabdian Kamandanu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36312/biocaster.v5i3.501

Abstract

Type 2 Diabetes Mellitus (DM type 2) is associated with low-grade systemic inflammation. Neutrophil-Lymphocyte Ratio (NLR) is a pro-inflammatory and oxidative stress biomarker in cardiometabolic diseases such as T2DM. This study aims to analyze the relationship of NLR with leukocyte count, random blood glucose, creatinine, total cholesterol, Serum Glutamic Pyruvic Transaminase (SGPT), and Serum Glutamic Oxaloacetic Transaminase (SGOT). The study design is a retrospective analysis with respondents of 162 uncomplicated T2DM patients treated at Mojowarno Christian General Hospital, Jombang. The results of the study showed that the average number of leukocytes was 12,688 cells/µl, neutrophils 75.3%, lymphocytes 17.2%, NLR 8.5, blood glucose 273.2 mg/dl, SGOT 40.88 U/l, SGPT 54.64 U/l, total cholesterol 196.3 mg/dl (<200), and creatinine 1.13 mg/dl. Correlation tests showed that NLR was significantly associated with leukocyte count (p = 0.000 < 0.05) and total cholesterol (p = 0.000 < 0.05), but not significantly correlated with random blood glucose (p = 0.064 > 0.05), SGOT (p = 0.089 > 0.05), SGPT (p = 0.929 > 0.05), or creatinine (p = 0.625 > 0.05). In conclusion, in patients with type 2 diabetes, NLR was significantly correlated with leukocyte count and total cholesterol, but not with random blood glucose, SGOT, SGPT, or creatinine.
Keanekaragaman Serangga Asosiatif pada Bangkai Tikus yang Diletakkan di Luar Ruangan sebagai Indikator Forensik Aini, Aprilia Nurul; Rahadian, Rully; Khotimah, Khusnul
Biocaster : Jurnal Kajian Biologi Vol. 5 No. 3 (2025): July
Publisher : Lembaga Pendidikan, Penelitian, dan Pengabdian Kamandanu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36312/biocaster.v5i3.502

Abstract

Insects are a group of organisms with a high level of species diversity and have various important roles, one of which is in the field of forensics. Insects can be used as forensic indicators in revealing the facts of death studied in forensic entomology. This study aims to analyze the diversity of insects associated with rat (Rattus norvegicus) carcasses in three different conditions, namely without treatment (control), wrapped in cloth, and with incisions. This study used a Randomized Block Design (RBD) with three replications for each treatment. The treatment group consisted of three types, namely without treatment, with cloth wrapping, and with incisions. Each group consisted of three replications. The results of the Hutcheson t-test showed differences in the insect species diversity index between treatments (p < 0.05). The species Onthophagus pilularius and Phaeochrous emarginatus were only found in carcasses wrapped in cloth. Meanwhile, Chrysomya megacephala was the dominant species in all treatments with a relative abundance of more than 40%. These findings indicate that the physical condition of the carcass influences the composition of the insect community, which has the potential to be used as an indicator in forensic studies.
Potensi Tabha Lame sebagai Pangan Fungsional Tradisional untuk Mendukung Laktasi: Kajian Etnobotani di Suku Ua Kabupaten Nagekeo Wae, Veronika P. Sinta Mbia; Babo, Anjelina Larici; Owa, Maria Fransiska; Bupu, Yuliana; Ngange, Bonefasia Gabriela Noni; Owa, Maria Prima
Biocaster : Jurnal Kajian Biologi Vol. 5 No. 3 (2025): July
Publisher : Lembaga Pendidikan, Penelitian, dan Pengabdian Kamandanu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36312/biocaster.v5i3.515

Abstract

Tabha Lame is a traditional food of the Ua Tribe in Nagekeo Regency which has been traditionally believed to increase breast milk production. However, this belief has never been scientifically studied and systematically documented, especially regarding its nutritional function and ethnobotanical value. This study aims to identify the composition of ingredients, processing, and nutritional potential of Tabha Lame as a locally based functional food. This study was conducted using a qualitative descriptive approach through interviews and field documentation methods with traditional leaders and women who possess traditional knowledge. The results show that Tabha Lame is made from local ingredients, such as: jali (Coix lacryma-jobi), moringa leaves (Moringa oleifera), peanuts (Arachis hypogaea), and coconut milk cooked using the Dhedhu Zaka technique. The content of phytoestrogens, iron, vegetable protein, vitamin A, and unsaturated fatty acids in these ingredients contribute to supporting the lactation process. The slow cooking process maintains micronutrients, while the symbolic presentation demonstrates the integration between nutrition and culture. The conclusion of this study confirms that Tabha Lame is a locally based functional food with potential for development in community-based nutritional interventions for breastfeeding mothers and the preservation of traditional knowledge.

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