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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 GC-MS dari Senyawa Bioaktif Ekstrak Etanol Daun Tanaman Sirsak (Annona muricata L.) sebagai Obat Tradisional Saputra, I Putu Bayu Agus; Sukanty, Ni Made Wiasty
Bioscientist : Jurnal Ilmiah Biologi Vol. 12 No. 1 (2024): 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.v12i1.10330

Abstract

Soursop leaves (Annona muricata L.), have long been recognized in various parts of the world, especially in tropical regions, as a plant with various health benefits and traditional uses. The rich history of its use has been intertwined in various cultures, where the leaves are used not only as a food ingredient, but also as a herbal medicine. The phytochemical content in soursop leaves, such as acetogenin, alkaloids, and flavonoids has been the subject of intensive research in the last decade, highlighting their potential in treating a variety of health conditions, from inflammation to anti-cancer potential. The chemical structure and biological activity of these compounds have attracted the attention of researchers, especially in the search for alternative therapies for difficult-to-treat diseases. Soursop leaf extract has antioxidant, antimicrobial, antiparasitic, and antitumor properties that offer new insights into its therapeutic potential. This research method uses the maceration method, where soursop leaves will be extracted using ethanol solvent and then the compounds contained in the extract will be analyzed using Gas-Mass Spectrometry (GC-MS). The results of GC-MS analysis show that soursop leaves contain the compounds 2,3-Dihydro-3,5-dihydroxy-6-methyl-4H-pyran-4-one, Trans-Caryophyllene, Hexadecanoic acid (CAS) Palmitic acid, 2-Hexadecen- 1-ol, 3,7,11,15-tetramethyl (Phytol), 9,12-Octadecadienoic acid (Z,Z) - (CAS) Linoleic acid, 9,12,15-Octadecadienoic acid methyl ester, Octadecanoic acid (CAS ) Stearic acid. The results of the analysis of compounds in soursop leaves can be a reference for further research to develop the potential of soursop fruit which leads to traditional medicine.
Propagasi In Vitro Kaliandra Merah (Calliandra calothyrsus Meisn.) II: Induksi Perakaran Tunas dan Aklimatisasi Planlet Idris, Muhammad; Asman, Auzia; Sorel, Deni; Joniarti, Edi; Mohtar, Ulfa; Harmailis, Harmailis; Nefri, John; Salvia, Salvia
Bioscientist : Jurnal Ilmiah Biologi Vol. 12 No. 1 (2024): 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.v12i1.10341

Abstract

Red calliandra is one of woody plants that has been extensively developed as biofuel. Tissue culture techniques are employed to produce a large and uniform quantity of seedlings in a relatively short period. Previous stages of in vitro initiation and multiplication of shoot from calliandra explants have shown promising results. The shoots that were multiplied by in vitro technique need to be induced for rooting process to produce plantlets. These plantlets are then prepared for the subsequent acclimatization process. This research was conducted in two stages; root induction of shoots using a modification of MS half-strength media (MS ½) supplemented with 1-4 mg/L 1-naphthaleneacetic acid (NAA), and acclimatization of the plantlets into soil media. The results shown that MS ½ medium and media supplemented with 1 mg/L NAA were suitable for root induction, particularly to induce the root length. Furthermore, MS ½ media supplemented with 1-2 mg/L NAA stimulates the increment of plantlet height and leaves numbers. Plantlets which were transferred into soil exhibit robust growth during 3-weeks of acclimatization process, up to 100% plantlets survived during this stage. These results underscore the potential of tissue culture techniques in providing large scale calliandra seedlings production for future biofuel development.
Pengaruh Pembelajaran Remedial Menggunakan Metode Tutor Sebaya Berbasis Video Animasi terhadap Motivasi Belajar pada Materi Kardiovaskular Setiyani, Riska; Narsan, Vifty Octanarlia
Bioscientist : Jurnal Ilmiah Biologi Vol. 12 No. 1 (2024): 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.v12i1.10347

Abstract

This research was conducted to look at remedial learning using the peer tutoring method based on animated videos on students' learning motivation on cardiovascular material. The sampling technique uses purposive sampling technique. The research method used is a descriptive quantitative method. The population and sample in the research were 28 students in class XI MIA 4 MANegeri 1 East Lampung with a sample of 24 students who experienced remedial treatment. The research instrument used was a learning motivation questionnaire sheet which refers to 6 indicators of learning motivation: 1) the desire and desire to learn; 2) there is encouragement and need to learn; 3) there are hopes and aspirations for the future; 4) there is appreciation for learning; 5) there are interesting activities in learning; and 6) there is a conducive learning situation, so that students can learn well. Based on the research results, it was found that there was an influence in the use of animated video-based peer tutoring methods on student learning motivation in remedial learning on cardiovascular system material.
Detection of Microplastics in the Digestive Tract of Commercial Fishes from Swalayan X Yogyakarta City Suwartiningsih, Nurul; Aprilda, Clariza Ninda; Putra, Ichsan Luqmana Indra; Putra, Sigit Surya
Bioscientist : Jurnal Ilmiah Biologi Vol. 12 No. 1 (2024): 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.v12i1.10359

Abstract

Plastic waste in waters can be degraded into microplastics with a size <5 mm. Microplastics in waters can enter the bodies of organisms, including commercial fishes. This study aims to analyze the abundance and characteristics of microplastics in the digestive tract of three species of commercial fishes from Supermarket X, Yogyakarta City, DIY Province. This study is an exploratory research that used three species of fishes, milkfish (Chanos chanos), mackerel (Rastrelliger sp.), and tuna (Euthynnus affinis). Fish samples were purchased from Supermarket X, Yogyakarta City, DIY Province, taken using quota sampling technique. The fish digestive tract was taken, soaked in 10% KOH, heated in oven at 60° then filtered. The obtained microplastics were then observed under a light microscope. The Kruskal Wallis test was performed to differentiate the abundance and characteristics of microplastics among the three species of fishes. The results showed the abundance of microplastics in the digestive tract of mackerel 465.00 ± 222.69 microplastics/individual, milkfish 471.67 ± 58.53 microplastics/individual and tuna 554.00 ± 122.19 microplastics/individual, but not significantly different. The forms of microplastic found were fiber, fragments, films, and pellets but not significantly different. The color of the microplastics obtained were not significantly different between fish species. Microplastics are dominated by the size range of 101 – 200 µm. Based on the FT-IR results, the microplastics found were Polypropylene (PP). Microplastics detected in the digestive tract of three species of commercial fishes from Supermarket X, Yogyakarta City, DIY Province have abundance and characteristics that are not significantly different.
Uji Efektifitas Ekstrak Daun Sirih Merah sebagai Anti Hiperglikemia pada Tikus Putih Diinduksi Aloksan Susanti, Try; Gusfarenie, Dwi; Nuraida, Nining
Bioscientist : Jurnal Ilmiah Biologi Vol. 12 No. 1 (2024): 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.v12i1.10427

Abstract

Diabetes melitus or diabetes is a health disorder in the form of a collection of symptoms that arise in a person caused by increased blood sugar leves due to insulin deficiency or insulin resistance and metabolic disorders in general. Red bete leaves contain chemical compounds of alkaloids, flavonoids, tannins and saponins which can lower blood sugar leves. The aim of this study was to determine the effectiveness of red bete leaf extract suspension (Piper crocatum) as antihyperglycemia in male white rats (Rattus novergicus) induced by alloxan. This research method is experimental. The extraction process for red bete leaves uses 70% ethanol solvent using the maceration method, then concentrated using a rotary evaporator and thickened using a water bath, then a suspension preparation is made, the doses given to male white rats are 2%, 4% and 6%. Glibenclamide suspension as a positive control and suspending agent as a negative control. The effectiveness of the red bete leaf extract suspension was seen from the reduction in blood sugar leves in mice after being induced by alloxan. The research data were analyzed using One Way ANOVA and paired sample t-test. The resuts of the study showed that red bete leaf extract suspension was effective as an antihyperglycemia, where the most effective dose was 6%. The suspension preparation of red bete leaf extract meets the requirements for evaluation of the preparation and stability of the preparation.
Penerapan Model Project Based Learning pada Mata Kuliah Bisnis Digital Bagi Mahasiswa Pendidikan Biologi Universitas Tanjungpura Wahyuni, Eko Sri; Titin, Titin; Rosanti, Melsinta; Agresi, Embun
Bioscientist : Jurnal Ilmiah Biologi Vol. 12 No. 1 (2024): 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.v12i1.10458

Abstract

Digital business is a form of technology development that promotes a product or brand. At the Biology Education study program of Faculty of Teacher Training and Education Tanjungpura University, Digital Business is a course that targets to increase students’ entrepreneurship. The learning model implemented in this course is PjBL model (Project Based Learning), which is a model to give lecturer chances to manage the learning process through projects. In this research, the method used in this research is qualitative descriptive. The purpose of this research is to determine the implementation of PjBL model in Digital Business course for the students of Biology Education study program of Universitas Tanjungpura in the academic year 2022/2023. The research object are 15 Biology Education students. The research instrument were observation sheets on the implementation of the learning process and student project observation sheets. Data analysis technique used in this research is data triangulation from the observation results. Based on the research results, it is known that the implementation of PjBL model in Digital Business course for Biology Education study program students in the academic year 2022/2023 is categorized as good. The implementation of the learning process reaches 100%. Students succeeded in creating a project to market products through various digital platforms.
Pengembangan Media Pembelajaran Herbarium Barcode pada Materi Pteridophyta Krisdayanti, Krisdayanti; Setiadi, Anandita Eka; Sunandar, Ari
Bioscientist : Jurnal Ilmiah Biologi Vol. 12 No. 1 (2024): 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.v12i1.10468

Abstract

Generation Z students like things related to smartphones as well as practical and interesting teaching materials. This research aims to determine the validity value and students' responses to barcode herbarium teaching material products on pteridophyta material. Researchers use the R&D method with the Borg and Gall development model, including stages: 1) research and data collection; 2) planning; 3) product development; 4) initial field trials; 5) trial revision; 6) field trials; and 7) improvement of the resulting product. The tools used for data collection were validation questionnaires and student responses. The assessment results show that the media that has been developed is very valid in the media aspect (95%) and material (90.47%), and valid in the language aspect (80%). Students gave very good responses to the herbarium barcode learning media in small-scale trials (83.97%), as well as large-scale trials (84.56%), it was concluded that the media developed was effective and received very good responses from students.
Analisis Kemampuan Mahasiswa Calon Guru Membuat Instrumen Penilaian Sikap Nerita, Siska; Lufri, Lufri; Ellizar, Ellizar; Helendra, Helendra
Bioscientist : Jurnal Ilmiah Biologi Vol. 12 No. 2 (2024): December
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.v12i2.10534

Abstract

Assessment plays an important role in determining the achievement of educational goals, so evaluation has a strategic role in the world of education. To ensure effective and efficient evaluation, it is necessary to use appropriate and reliable assessment instruments. Teachers have a big responsibility in developing the ability to create assessment instruments to measure students' attitudes, knowledge and skills, so that educational goals can be achieved accurately. The aim of this research is to analyze prospective teachers' abilities in designing attitude assessment instruments. This research uses a quantitative descriptive approach using student performance assessment instruments in creating attitude assessment instruments in biology learning. Indicators for measuring students' ability to create attitude instruments are 1) suitability of instrument components, 2) suitability of attitude assessment aspects with competency achievement indicators, 3) suitability of the rubric formulated with aspects of attitude assessment, 4) suitability of the formulation of the assessment rubric with statements, 5) Using language which is good and correct, does not use regional languages. The research results show that the ability of prospective biology teacher students in making attitude assessment instruments is still at medium criteria (67.82%).
Gambaran Histopatologi Kulit Ikan Kerapu Cantang (Epinephelus fuscoguttatus x Epinephelus lanceolatus) yang Terinfestasi Zeylanicobdella arugamensis Setelah Perendaman Menggunakan Perasan Daun Pepaya (Carica papaya) Putra, Bernathdo Mahendra Robbi; Mahasri, Gunanti; Sulmartiwi, Laksmi
Bioscientist : Jurnal Ilmiah Biologi Vol. 12 No. 1 (2024): 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.v12i1.10575

Abstract

Increasing cultivation activities and intensifying ponds has the potential to give rise to problems, namely increasing cases of disease in grouper fish, namely Zeylanicobdella, causing mass deaths of up to 100%. This study aims to analyze the histopathological picture of grouper skin infested with Zeylanicobdella arugamensis after administering papaya leaf juice with different soaking times and concentrations of papaya leaf juice. The method used was experimental Completely Randomized Design (CRD) with a factorial pattern consisting of two factors, namely factor A, different concentrations of papaya leaf juice consisting of 0% (A1), 0.1% (A2), 0.3% (A3) , and 0.5% (A4), as well as factor B for grouper rearing time consisting of the 0th minute (B1), 60th minute (B2), and 120th minute (B3) with five repetitions. The results of the study showed that the soaking time of papaya leaf juice in grouper fish had an effect on reducing the degree of Zeylanicobdella infestation, there were changes in the histopathological picture and water quality values before and after soaking. Treatments A2, A3, and A4 experienced a decrease in the degree of ectoparasite infestation at 60 and 120 minutes of immersion. The histopathological scoring values for treatments A2, A3, and A4 decreased at 60 and 120 minutes of maintenance. The best treatment combination was 0, 3% and soaking time at 120 minutes. In conclusion, giving papaya leaf juice with a soaking time of 120 minutes with a concentration of 0.3% can reduce the degree of infestation and the histopathological scoring value of Zeylanicobdella in grouper fish.
Pengembangan Modul Ajar Pencemaran Lingkungan dengan Materi Realitas Lokal Indralaya pada Jenjang SMA Kelas X Anggraini, Nike; Rohmawati, Shofi; Meilinda, Meilinda; Tibrani, Masagus Muhammad
Bioscientist : Jurnal Ilmiah Biologi Vol. 12 No. 1 (2024): 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.v12i1.10580

Abstract

This research is a type of development research which aims to develop the Merdeka Curriculum teaching module with material on environmental pollution accompanied by material on the local reality context of Indralaya which is suitable to be donated or used at the class X high school level. This research includes development research (development research) which uses a model ADDIE development consists of 5 stages, namely analysis, design, development, implementation and evaluation, where the evaluation carried out is a formative evaluation. The assessment results from the validators obtained a feasibility score of 85.16% with several suggestions given as well as the conclusion from the two validators that the product being developed could be tested with improvements according to the suggestions. After the development stage, an evaluation stage is carried out, namely by improving it according to suggestions from the validator. The results of trials with students showed that all students who were respondents could understand and read the contents of the teaching module being developed. According to the results obtained, the Merdeka Curriculum teaching module product on environmental pollution along with material on the local reality context of Indralaya has been successfully developed and received a feasibility validation score in the very valid category.

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