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Bioscientist : Jurnal Ilmiah Biologi
Published by Universitas Pendidikan Mandalika
ISSN : 23385006     EISSN : 26544571     DOI : https://doi.org/10.33394
Core Subject : Science, Education, Agriculture, Social,
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Education Immunology & microbiology Social Sciences
Bioscientist : Jurnal Ilmiah Biologi (BJIB), receiving and publishing article in the form of research (scientific article) in the field of biology education and utilization of biological research in learning. Moreover, this journal bridges the gap between research and practice, providing information, ideas and opinion, in addition to critical examinations of biology research and teaching. 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. Special emphasize are as follow: 1. Research on Learning Biology (Biology Learning Materials at All Education Levels). 2. Pure Research of Biology Developed or Studied to the Sources, Materials, or Instructional Media Biology (Biology Learning Materials at All Education Levels and Application in Society). 3. Curriculum of Biology Education at all Education Levels. 4. Class Action Research (CAR) and Lesson Study in Biology. 5. Other Qualitative Research of Biology Education. 6. The School Management and Biology/Science Laboratory Management. 7. Biology Learning Evaluation. 8. Teacher Professional Issues/Trends in Biology Education. 9. Another Study for the Scope of Biology Education. 10. Research on Environmental Education.
Arjuna Subject : Ilmu Pertanian dan Biologi (Semua) - Ilmu Pertanian dan Biologi (Lain-Lain)
Articles 1,439 Documents
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Analisis Penerapan Nilai Pendidikan Karakter Pada Pembelajaran Biologi Era Society 5.0 Pada Siswa Kelas X MAN Binjai Nadia, Rizka Lucy; Ulfa, Syarifah Widya; Suryani, Ira
Bioscientist : Jurnal Ilmiah Biologi Vol. 13 No. 2 (2025): June
Publisher : Department of Biology Education, FSTT, Mandalika University of Education, Indonesia.

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33394/bioscientist.v13i2.15006

Abstract

This study aims to analyze the application of character education values in biology learning in the era of society 5.0 for class X students of MAN Binjai. This study uses a mixed methods approach with a sequential exploratory design, namely a combination research method that combines qualitative and quantitative research methods sequentially. Data collection techniques are carried out using case studies and experiments. Case studies use instruments, namely documentation, interviews and observations of biology teachers. While the experiment uses a student needs questionnaire instrument. The results of the study indicate that the application of character education values in biology learning in the era of society 5.0 for class X students of MAN Binjai that have been developed, in character education the highest score with a value of 89% in the aspect of tolerance character values, a medium score with a value of 60% in the aspect of health care character values and the lowest score with a value of 42% in the aspect of environmental care. The obstacles faced by biology teachers are that students still do not carry out the tasks and obligations given by the teacher with full responsibility, students do not submit assignments on time.
Uji Cemaran Mikroba pada Jajanan Pedagang Kaki Lima Sekolah Dasar di Kecamatan Tarakan Tengah Menggunakan Metode Angka Lempeng Total Nurfadilah, Nurfadilah; Rukaya, Benazir Evita; Syuhada, Syuhada
Bioscientist : Jurnal Ilmiah Biologi Vol. 13 No. 1 (2025): March
Publisher : Department of Biology Education, FSTT, Mandalika University of Education, Indonesia.

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33394/bioscientist.v13i1.15026

Abstract

This study aims to evaluate the level of microbial contamination in street food sold and to conduct direct observations on environmental sanitation and hygiene practices carried out by street vendors in elementary school environments in Kecamatan Tarakan Tengah. The microbial contamination levels in 15 research samples, consisting of 9 types of food and 6 types of beverages, were randomly obtained from five different sub-districts and measured using the Total Plate Count (TPC) method. During the sampling process, observations and documentation of activities and conditions around the sales locations were conducted. The results of this study indicate that (1) all samples had TPC values far exceeding the limits set by BPOM, with the highest contamination found in pentol ayam goreng (8.69 × 10¹⁰ CFU/g) and es nutrijel stroberi (4.79 × 10¹⁰ CFU/ml); (2) The main factors contributing to the high microbial contamination, based on direct observations during sampling, include poor sanitation practices, exposure to an open environment, and the use of unhygienic equipment. Therefore, it can be concluded that street food sold in the vicinity of elementary schools in Kecamatan Tarakan Tengah presents a significant health risk to students due to the high level of microbial contamination.
Studi Mikrobiologi pada Jajanan Kaki Lima di Sekolah Dasar Kecamatan Tarakan Barat: Implikasi bagi Keamanan Pangan Sholehah, Nur Ulya Aufa; Rukaya, Benazir Evita; Syuhada, Syuhada
Bioscientist : Jurnal Ilmiah Biologi Vol. 13 No. 1 (2025): March
Publisher : Department of Biology Education, FSTT, Mandalika University of Education, Indonesia.

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33394/bioscientist.v13i1.15038

Abstract

This study aims to evaluate the microbiological safety of street food sold by vendors in Tarakan Barat District. The evaluation was conducted on 12 food samples, consisting of 8 types of food and 4 types of beverages, randomly collected from vendors in four sub-districts: Karang Anyar, Karang Balik, Karang Rejo, and Karang Anyar Pantai. Samples were tested using the Total Plate Count (ALT) method to determine the bacterial colony count in the tested food and beverages. The results showed that (1) the sample with the highest contamination level among food items was Pentol Rebus/Kukus (3,19 × 10¹⁰CFU/g), while the beverage with the highest ALT was Es Teh Sisri (I) (2,59 × 10¹⁰ CFU/ml) obtained from SDN 003 Tarakan, whereas Es Teh Sisri (D) from SDN 1 Utama Tarakan showed a TFTC (Too Few to Count) result; (2) The high microbial contamination levels in these street foods are suspected to be caused by several factors, including poor environmental sanitation, lack of vendor hygiene, and exposure to dust and pollution from the selling locations. Most of the tested samples had ALT levels far exceeding the limits set by BPOM, confirming that street food poses a risk of causing various diseases such as gastrointestinal infections, diarrhea, food poisoning, and typhoid fever, which may negatively impact the health of elementary school students in Tarakan Barat District.
Optimasi Sterilisasi Minuman Jamu Kunyit-Asam Kemasan dengan Metode Pasteurisasi Putri, Meilani; Syuhada, Syuhada; Rukaya, Benazir Evita
Bioscientist : Jurnal Ilmiah Biologi Vol. 13 No. 1 (2025): March
Publisher : Department of Biology Education, FSTT, Mandalika University of Education, Indonesia.

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33394/bioscientist.v13i1.15042

Abstract

This study aims to evaluate the effect of pasteurization at 65°C and 85°C on pH stability, organoleptic characteristics, and microbiological contamination of turmeric and tamarind herbal medicine during 15 days of storage. This research is an experimental study in the laboratory. The research methods include pasteurization at the two temperatures, pH testing, organoleptic tests (including colour, aroma, and taste), and total plate count (TPC) analysis to assess microbial contamination. The results of the study showed several main findings (1) pasteurization was effective in maintaining the stability of pH, colour, and aroma of turmeric and tamarind herbal medicine during 15 days of storage; (2) there was an increase in flavour intensity on the 15th day in the pasteurized group; (3) pasteurization at 85°C reduced the lowest microbial contamination rate (1.85 × 10¹⁰ CFU/mL) compared to the group without pasteurization (3.33 × 10¹⁰ CFU/mL). Thus, pasteurization in this study increased microbiological safety and affected the sensory characteristics of turmeric and tamarind herbal medicine, especially in taste intensity.
Pengembangan Instrumen Three-Tier Test Diagnostik pada Materi Sistem Koordinasi untuk Mengidentifikasi Miskonsepsi Peserta Didik di SMAN 2 Sinjai Ariya, A. Aida; Muis, Abd.; Ismail, Ismail
Bioscientist : Jurnal Ilmiah Biologi Vol. 13 No. 2 (2025): June
Publisher : Department of Biology Education, FSTT, Mandalika University of Education, Indonesia.

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33394/bioscientist.v13i2.15044

Abstract

The aim of this study was to develop a diagnostic test instrument and to identify the level of misconceptions held by students regarding the topic of the coordination system. The development design of this research involved trials with Grade XI students at SMAN 12 Sinjai and field testing with Grade XI students at SMAN 2 Sinjai. The methods employed included test item development, interviews, and documentation. The resulting instruments consisted of test blueprints, test items, and answer keys. The test items underwent expert validation and were subjected to reliability testing, difficulty level analysis, and item discrimination index evaluation through all trial stages (one-to-one, small group, and field testing). Out of 30 test items that were validated, only 21 advanced to the final stage, namely the field test. The findings revealed that, on average, 40.47% of the 50 students experienced misconceptions, which were categorized into two main indicators. The highest misconception rates in the coordination system topic were found in the indicators related to the structure of the central and peripheral nervous systems, as well as the structure and function of sensory organs, with an average misconception rate of 56% for the relevant test items. Based on the results of developing the three-tier diagnostic test on the coordination system material, it can be concluded that the instrument is effective and appropriate for identifying students' misconceptions on the topic.
Pengetahuan Etnobotani Tumbuhan Obat Pada Penderita Penyakit Lambung di Desa Trusmi Kulon, Kabupaten Cirebon Mahrani, Aura Sutra; Husain, Fadly
Bioscientist : Jurnal Ilmiah Biologi Vol. 13 No. 2 (2025): June
Publisher : Department of Biology Education, FSTT, Mandalika University of Education, Indonesia.

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33394/bioscientist.v13i2.15047

Abstract

This study aims to understand the ethnobotanical knowledge possessed by the people of Trusmi Kulon Village, especially in the utilization of medicinal plants for people with gastric diseases. This research used a qualitative method with an ethnographic approach. Data collection in this study was carried out through in-depth interview methods, with a question model using semi-structured interview techniques. Interviews were conducted with 13 informants from the general public in Trusmi Kulon Village who were selected based on their knowledge of ethnobotany and history of gastric disease. The researcher also used the PlantNet application to help identify plants. Data analysis used the Miles and Huberman model, which consists of data reduction, data presentation, and conclusion drawing. The results showed that the people of Trusmi Kulon Village have knowledge about the use of medicinal plants that have been passed down from generation to generation. Overall, 34 medicinal plants were found that are believed to be efficacious, but specifically there are 9 medicinal plants used by the community in overcoming gastric diseases. Plant parts used in making medicinal herbs include leaves, flowers, stems, seeds, and rhizomes. The process of processing plants into medicine varies, ranging from boiled, grated, squeezed, burned, pounded, dried and then brewed, rubbed, or eaten directly. Each herb has a different processing method, some are single, some need to be mixed with other ingredients. This finding shows that traditional medicine is still an important part of society as an alternative treatment that is trusted for generations.
Effect of Young Coconut Water Concentration on The Growth of Dendrobium Orchid Seedlings Irmayanti, Amanda; Prasetiyo, Prasetiyo; Rahayu, Praptining
Bioscientist : Jurnal Ilmiah Biologi Vol. 13 No. 1 (2025): March
Publisher : Department of Biology Education, FSTT, Mandalika University of Education, Indonesia.

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33394/bioscientist.v13i1.15056

Abstract

This study aims to assess the effect of young coconut water concentration on the growth of Dendrobium orchids. The research was conducted for 4 months at Candi Orchid Production House, Semarang, with a one-factor completely randomized design (CRD) and four treatments of young coconut water concentration (0 mL/L, 100 mL/L, 150 mL/L, 200 mL/L), each with five replications. Parameters observed included number of shoots, root length, and plant height. Data were analyzed using ANOVA and Duncan's further test at the 5% level. The results showed that the application of young coconut water had no significant effect on the number of shoots and root length (p > 0.05), but had a significant effect on plant height (p = 0.003), especially at a concentration of 100 mL/L. The predominance of cytokinin hormones in coconut water likely plays a role in stimulating stem growth, while its effects on shoots and roots require interactions with other hormones. Although coconut water contains essential nutrients, its composition may not be fully suitable for the physiological needs of orchids in the seedling phase.
Analisis Kandungan Klorofil pada Benih Padi Tua (Oryza Sativa L.) yang Terpapar Medan Magnet Extremely Low Frequency (ELF) pada Masa Pertumbuhan Vegetatif Saputra, Agong; Listiana, Ika; Saputri, Dwijowati Asih
Bioscientist : Jurnal Ilmiah Biologi Vol. 13 No. 1 (2025): March
Publisher : Department of Biology Education, FSTT, Mandalika University of Education, Indonesia.

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33394/bioscientist.v13i1.15057

Abstract

This study aims to evaluate the effect of Extremely Low Frequency (ELF) magnetic field exposure on chlorophyll content in aged rice (Oryza sativa L.) seeds during the vegetative phase. Chlorophyll is the primary pigment in photosynthesis, playing a crucial role in light absorption and the conversion of energy into organic matter essential for plant growth. The research method used was a completely randomized design (CRD) with ELF magnetic field exposure treatments at an intensity of 0.2 mT for 3 minutes 54 seconds, 7 minutes 48 seconds, 11 minutes 42 seconds, and a control treatment without exposure. The results showed that (1) ELF magnetic field exposure for 11 minutes 42 seconds produced the highest chlorophyll a, chlorophyll b, and total chlorophyll content compared to other treatments. (2) The control treatment (P0) resulted in lower chlorophyll a, chlorophyll b, and total chlorophyll content than the P1, P2, and P3 treatments. (3) Longer exposure durations, such as in the P3 treatment, were proven to significantly increase chlorophyll content, potentially optimizing the photosynthesis process in rice plants.
Pengaruh Metode Pembelajaran Luar Kelas Berbasis TGT terhadap Peningkatan Motivasi Belajar IPA-Materi Keanekaragaman Hayati Haq, Indah Arinal; Hidayat, Muhammad Luthfi
Bioscientist : Jurnal Ilmiah Biologi Vol. 13 No. 1 (2025): March
Publisher : Department of Biology Education, FSTT, Mandalika University of Education, Indonesia.

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33394/bioscientist.v13i1.15104

Abstract

This study aims to determine the effect of TGT (Team Games Tournament)-based outdoor learning methods on increasing science learning motivation in class VII students of SMPN 5 Sukoharjo. The research method used is a quasi-experimental with a pre-test post-test control group design. The research sample consisted of two classes, namely the experimental group taught using TGT-based outdoor learning methods. Data were collected through a learning motivation questionnaire using a Likert scale and analyzed using a statistical test in the form of a paired t-test to determine the significance of increasing student learning motivation before and after the application of the learning method. The results showed that (1) the TGT-based outdoor learning method can significantly increase students' science learning motivation, where the pretest score before treatment in VIIC was 3.23 and after treatment increased to 4.14, while the VIIF class before treatment was 3.28 and after treatment increased to 4.26. (2) paired sample t-test statistical test obtained p-value (Sig.) of 0.000 smaller than 0.05, so there is a statistically significant difference between the scores before and after the intervention. Thus, the use of TGT-based outdoor learning methods can be an effective alternative to increase students' learning motivation in science learning, especially in biodiversity material.
Jumlah Eritrosit Tikus Putih (Rattus norvegicus) Strain Wistar Bunting yang Mengonsumsi MSG Organik dan Sintetis Febriyanti, Amalia; Setyaningsih, Endang; Fauziah, Daniar Eka Nur; Aryanti, Firma; Sagita, Ninit Putry; Febrianti, Ulya Ananda Putri; Tias, Eriza Putri Ayu Ning; Wicaksono, M. Galih
Bioscientist : Jurnal Ilmiah Biologi Vol. 13 No. 1 (2025): March
Publisher : Department of Biology Education, FSTT, Mandalika University of Education, Indonesia.

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33394/bioscientist.v13i1.15109

Abstract

This study aims to determine the number of erythrocytes in pregnant Wistar strain white rats (Rattus norvegicus) consuming organic and synthetic MSG. This study used a Completely Randomized Design (CRD) with 21 samples, 7 treatments, and 3 replications; control treatment (normal feed), P1 (60 mg/kgBW organic MSG), P2 (120 mg/kgBW organic MSG), P3 (240 mg/kgBW organic MSG), P4 (60 mg/kgBW synthetic MSG), P5 (120 mg/kgBW synthetic MSG), and P6 (240 mg/kgBW synthetic MSG). The analysis includes the number of erythrocytes in white rats (Rattus norvegicus), One Way ANOVA test using SPSS version 29, followed by Duncan's Multiple Range Test (DMRT) to determine the mean differences between treatments. The research results show that the number of erythrocytes in the control group (normal) was 6.97 x 106 / µL, P1 (5.17 x 106 / µL), P2 (5.37 x 106 / µL), P3 (5.89 x 106 / µL), P4 (7.61 x 106 / µL), P5 (7.90 x 106 / µL), and P6 (8.29 x 106 / µL). Thus, the administration of organic and synthetic MSG affects the number of erythrocytes in pregnant white rats (Rattus norvegicus) of the Wistar strain, marked by an increase in the number of erythrocytes. The lowest number of erythrocytes was in P1 (60 mg/kgBB), and the highest number of erythrocytes was in P6 (240 mg/kgBB).

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