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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 123 Documents
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Search results for , issue "Vol 12, No 1 (2024): June" : 123 Documents clear
Efektivitas Pupuk Organik Cair Jerami Padi dan Kotoran Sapi terhadap Pertumbuhan Tanaman Sawi (Brasicca juncea L.) Anisa Rizki Nastiti; Aminah Asngad
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.v12i1.11517

Abstract

The mustard plant (Brassica juncea L.) is loved by everyone because it has lots of nutrients and is also good for health. This research aims to determine the effectiveness of liquid organic fertilizer from rice straw and cow dung on the growth of mustard greens. The method used in this research was an experimental method with a Completely Randomized Design (CRD) with 2 factors, namely the dose of liquid organic fertilizer (P₁ = 10 ml and P₂ = 13 ml) and the time of application of liquid organic fertilizer (W₁ = once every 5 days and W₂ = once every 7 days).  The results of research on liquid organic fertilizer from rice straw and cow dung can effectively accelerate growth in height, number of leaves and wet weight in mustard greens (Brassica juncea L.). The growth of mustard greens was very good in the P₂W₁ treatment (13 ml dose every 5 days) which produced mustard plants with an average height of 35.1 cm, an average number of leaves of 17.3, and an average fresh weight of mustard greens. average 165.3 grams.
Meta-Analisis : Penerapan Model Pembelajaran Project Based Learning (PjBL) untuk Meningkatkan Hasil Belajar Siswa Nonci Melinda Uki; AAIA Rai Sudiatmika; I Ketut Suma; I Nyoman Suardana
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.v12i1.9854

Abstract

This research aims to analyze the effectiveness of the Project Based Learning (PjBL) learning model in improving student learning outcomes at the elementary, middle and high school levels. The research method used is meta-analysis by re-analyzing articles from 19 research results that have been published, and can be accessed online, which were published in 2014-2023. The results of this meta-analysis research show that the effect size value at the high school level is 1,350, at the elementary school level is 2,636, and at the junior high school level is 4,727. From the effect size analysis, it can be concluded that the implementation of the PjBL learning model has proven effective in improving student learning outcomes at the elementary, middle and high school levels.
Uji Efektifitas Ekstrak Daun Sirih Merah sebagai Anti Hiperglikemia pada Tikus Putih Diinduksi Aloksan Try Susanti; Dwi Gusfarenie; Nining Nuraida
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.
Eksplorasi Bakteri-bakteri Pemfermentasi dalam Beberapa Produk Tempe di Kota Padang Nurmiati Nurmiati; Periadnadi Periadnadi; Sherly Jadespi; Annisa Apriyelita
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.v12i1.11094

Abstract

Tempeh is one of Indonesia's traditional foods produced through the microbial fermentation process of Rhizopus. It has become a favorite among the community, typically cooked before consumption. The fermentative bacteria in tempeh are suspected to act as probiotics, potentially making tempeh a functional food. Thus far, there have been no reports on the presence of fermentative bacteria in soybean tempeh in Padang City. Therefore, this study aimed to analyze the presence of fermentative bacteria and enzymatic activities in various tempeh products in Padang City. The research focused on identifying the presence and proportion of fermentative bacteria in soybean tempeh in Padang City. The study utilized a survey method, and the data obtained were analyzed descriptively. The results indicated the total presence of bacteria in soybean tempeh samples (11.2 - 15.3 x 10^6 CFU/g), fermentative bacteria (3.30 - 6.10 x 10^6 CFU/g), acetic acid bacteria (0.90 - 1.50 x 10^5 CFU/g), proteolytic bacteria (2.10 - 3.70 x 10^6 CFU/g), cellulolytic bacteria (34.60 - 6.50 x 10^6 CFU/g), and amylolytic bacteria (2.20 - 4.90 x 10^6 CFU/g).
Hubungan Fenomena Deforestasi dengan Penurunan Populasi Rusa Timor (Cervus timorensis) dan Pentingnya Pendidikan Konservasi bagi Masyarakat di Pulau Lombok Aulia Zulfaeda; M. Harja Efendi; Nining Purwati
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.v12i1.11409

Abstract

There is an endemic animal in West Nusa Tenggara namely the Timor Deer (Cervus timorensis). However, the population has decreased over time, and the Timor deer species is categorized as an endangered species by the IUCN. The decline of the Timor Deer population in Lombok island is due to lose its natural habitat in the forest. And one of the causes that is deforestation. Deforestation is the conversion of forests into land for use, such as clearing land for agriculture and plantations. Therefore, to maintain the Timor Deer population in Lombok island, it is also important to balance it with providing knowledge about conservation to the community through conservation education. This research aims to analyze the relationship between the deforestation phenomenon and the decline of the Timor Deer population and the importance of conservation education for the community in Lombok island, West Nusa Tenggara. Using a systematic literature review method by collecting data and literature from several journals. The results show that there is a relationship between the deforestation phenomenon and the decline of the Timor Deer population in Lombok and the importance of conservation education to the community to increase public awareness to protect endemic animals.
Pengembangan Protokol Deteksi Staphylococcus aureus Berbasis Molekuler Koentjoro, Maharani Pertiwi; Alviani, Melinda Nuril; Jatmiko, Yoga Dwi; Habibah, Laila Nur; Al Fatih, Ahmad Nuril Fuad; Kartikaningsih, Hartati
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.v12i1.9494

Abstract

Staphylococcus aureus becomes a normal flora in humans, especially on the skin and in the nose. However, if it becomes excessive or if there are pathogenic variants, it can cause various health problems. The purpose of the study is to develop a molecular-based detection method for Staphylococcus aureus using the norA primer gene. The norA gene in Staphylococcus aureus is known to play a role in pathogenesis with its antibiotic resistance ability. This type of research is analytical observational with a cross-sectional method. The methods in the study include the isolation and identification of Staphylococcus aureus from healthcare facility equipment. Isolation and identification include bacterial isolation using Blood Agar Plate (BAP) media; isolate purification, Gram staining; biochemical tests using Mannitol Salt Agar (MSA) media, glucose tests, Voges Proskauer (VP) tests, catalase tests, and coagulase tests. Furthermore, S. aureus isolates were tested using a molecular-based method, namely Polymerase Chain Reaction (PCR). This method includes DNA isolation stages, qualitative testing with agarose gel electrophoresis, semi-quantitative testing with image J software, amplification with Real-Time Polymerase Chain Reaction (RT-PCR) using norA gene primers. The Mann-Whitney test results gave a value of p = 0.334 (p> 0.05) indicating the suitability between the culture method and the PCR method with the developed protocol in detecting Staphylococcus aureus. The developed method includes the use of base sequences in the norA gene primer, optimization of annealing and extension temperatures, and the concentration of DNA templates used.
Aplikasi Streptomyces sp. ASR 67 dan Pupuk Organik Cair dalam Mengendalikan Penyakit Layu Fusarium oxysporum dan Pemacu Pertumbuhan Tanaman Kentang (Solanum tuberosum L.) Varietas Granola Diharjo, Dewi; Fatmawati, Umi
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.v12i1.9924

Abstract

Demand for the Granola variety of potatoes continues to increase, but its productivity is not yet sufficient for market needs. This is due to the wilt disease attack on potatoes caused by the fungus Fusarium sp., thereby reducing potato productivity. The aim of this research was to determine the use of liquid culture of Streptomyces sp. ASR 67 and liquid organic fertilizer as an organic anti-fungal in controlling wilt disease caused by Fusarium oxysporum on potato plants (Solanum tuberosum L.). The research was carried out using a Randomized Group Design (RAK) method using five treatments. Each treatment was repeated five times and each repetition used one potato plant. Treatment was given by watering the potato growing medium for 30 days, which was done every three days. The results showed that administration of liquid culture of Streptomyces sp. ASR 67 10% combined with liquid organic fertilizer (1:9) was able to increase plant growth with the parameters of height, number of leaves, number of stems, weight of tubers significantly, while POC 2% and Streptomyces sp. ASR67 (1:1) is able to reduce the incidence of wilt disease best.
Review : Kajian Potensi Bakteri Endofit sebagai Agen Biodegradasi Linear Alkylbenzene Sulfonate (LAS) Mahmudah, Arini Nurul; Faizah, Hanik; Munir, Misbakhul
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.v12i1.10181

Abstract

Linear Alkylbenzene Sulfonate (LAS) is a type of anionic surfactant which is commonly used as a raw material in making commercial detergents or cleaners. Even though LAS can be degraded naturally in the environment, detergent wastewater containing LAS still needs to be treated properly before being discharged into the environment. One way that can be done to reduce the toxic effects of LAS is biodegradation. The use of bacteria, especially endophytic bacteria associated with plants, is known to have potential as a biodegradation agent for LAS. This review aims to examine the potential of endophytic bacteria as LAS biodegradation agents. The method used in this review is a literature review from several international and national journal references. Data were analyzed descriptively and presented in narrative and table form. The results of the research show that several species of endophytic bacteria isolated from various types of plants have the potential to degrade pollutants, such as heavy metals, benzene, phenol, phenanthrene (PHE), diesel, ammonium, phosphate, COD, and hydrocarbons which also shows that endophytic bacteria have the potential to degrades LAS.
Identifikasi Keragaman Mikroflora dan Pengaruhnya pada Kualitas Organoleptik Tempoyak Khas Suku Dayak di Kalimantan Tengah Swestyani, Sondra; Hujjatusnaini, Noor
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.v12i1.11008

Abstract

Tempoyak as local wisdom and national culture is poorly documented. Therefore, it is important to explore the preferences of the millennial generation regarding the organoleptic qualities of Tempoyak. The research design is a one-shot case study. The variables tested were the diversity of microflora in tempoyak, and its influence on the level of organoleptic quality and the level of preference of the millennial generation. Identification of isolates using API-50CHL, biochemical tests and physiological tests. Organoleptic quality uses the hedonic scale test. The research panelists were 120 people from the Dayak, Madura, Jawa and Banjar tribes. Data analysis uses one way Anava analysis. 15 isolates of microflora were found in Tempoyak which affected its taste and organoleptics, 8 isolates including lactic acid bacteria, including Pediococcus acidilactici, Lactobacillus curvatus, Leuconostoc mesenteroides, Lactobacillus plantarum, Streptococcus thermophiles, Lactobacillus pentosus, Enterococcus faecium, and Weissella paramesenteroides. 1 isolate of non-lactic acid bacteria that is Micrococcus varians. 2 isolates from the yeast group consisted of Saccharomyces cereviciae and Kluyveromyces marxianus, and 4 isolates included Rhizopus, Monilia sitophila, and Mucor roxii. All microflora found were capable of producing lactic acid, except Aspergillus repens. The statistical test results show the significance of its influence on the organoleptic quality of all sub-variables, including color, taste, aroma and texture of Tempoyak. The exploration results in this research indicate opportunities for Tempoyak to be more developed, innovative and contemporary, so that it is preferred by the millennial generation.
Analisis Cluster: Pedagogy Knowledge Guru Menuju Digitalisasi Pendidikan di Era Merdeka Belajar Berdasarkan Daerah Afirmasi Ratnaya, I Gede; Hajiriah, Titi Laily; Fajri, Siti Rabiatul; Fitriani, Herdiyana
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.v12i1.10750

Abstract

The competence possessed by teachers is an important factor in achieving learning and education goals in schools. One of the essential competencies in the learning process is pedagogical competence. The Era of Independent Learning marks a paradigm shift in education in Indonesia by utilizing technology to improve the quality of learning. However, challenges arise especially in affirmation areas that have different socio-economic conditions and educational infrastructure. This study aims to determine the ability of teachers' pedagogic competence in facing the digitalization of education in the era of Independent Learning based on affirmation areas. In addition, this study also groups teachers based on their pedagogic abilities towards the digitalization of education in the era of Freedom of Learning using cluster analysis analyzed through SPSS For Windows 23. The research sample consisted of 100 respondents from several affirmation regions in Indonesia, such as Bima, West Lombok, East Lombok, Central Lombok, Maluku, NTT, Papua, and Sumbawa. Additional respondents came from non-affirmative areas as comparators, including Mataram City, Surabaya, Kalimantan, and Magetan East Java. The results of the study show that West Lombok Regency has the highest level of pedagogic competence among affirmation areas with a score of 87.74, while Bima Regency has the lowest score of 75. This average score is still categorized as high because it is above 75. The comparison area shows that Magetan has the highest average score of 100. Cluster analysis showed the formation of two groups, namely cluster 1 consisting of teachers from Magetan, Papua, West Lombok, and NTT, and cluster 2 consisting of teachers from Kalimantan, Bima, Surabaya, Mataram City, Maluku, Sumbawa, and Central Lombok.

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