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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 97 Documents
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Search results for , issue "Vol 11, No 2 (2023): December" : 97 Documents clear
Uji Aktivitas Antibakteri Ekstrak Metanol Propolis dari Lebah Kelulut (Heterotrigona itama) terhadap Bakteri Pseudomonas aeruginosa dan Staphylococcus aureus Dyah Tantri Wulandari; Supomo Supomo; Husnul Warnida
Bioscientist : Jurnal Ilmiah Biologi Vol 11, No 2 (2023): 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.v11i2.9373

Abstract

One of the causes of infection is influenced by the occurrence of wounds. Treatment of infected wounds using antibiotics. But antibiotics causes resistance. Then another alternative material from natural ingredients is used, is Propolis from Heterotrigona itama bees. This study aims to determine the inhibition, MIC and MBC of Propolis methanol extract with concentrations of 10%,20%30%,40%,50% against Pseudomonas aeruginosa and Staphylococcus aureus. Research uses experimental research with a non-probability sampling technique, purposive sampling. The extraction method uses methanol solvent maceration. Antibacterial test was carried out by disc diffusion method, positive control of 0.1% clindamycin, negative control of DMSO. The independent variable is the concentration of propolis methanol extract and the dependent variable is the inhibition zone formed and the MIC and MBC values. Analyzed statistically using the ANOVA. Propolis methanol extract inhibited Pseudomonas aeruginosa bacteria at concentrations of 10%:7.74mm, 20%:8.05mm, 30%:10.00mm, 40%:10.05mm, 50%:12,25mm, and can inhibit the growth of Staphylococcus aureus bacteria at concentrations of 10%:7,05mm, 20%:8.00mm, 30%:10.20mm, 40%:11.15mm, 50%:12,05mm. MIC and MBC methanol extract of propolis on the bacteria Pseudomonas aeruginosa and Staphylococcus aureus of 100 mg/ml. Statistical test results showed that all concentrations of propolis methanol extract had a significant difference with the positive control of Clindamycin 0.1%.
Penurunan Aktivitas Biofilm Strain MRSA 22156 oleh Tanaman Saga (Abrus precatorius L.) Bq. Mutmainnah; Ni’matuzahroh Ni’matuzahroh
Bioscientist : Jurnal Ilmiah Biologi Vol 11, No 2 (2023): 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.v11i2.9297

Abstract

The aim of this research is to determine the effect of using saga extract on bacterial biofilm growth, and to determine the most appropriate dose of saga extract in reducing MRSA 22156 biofilm activity. This research uses the Dowd method to determine the total flavonoid content of A. precatorius L leaves. Treatment reduction in MRSA 22156 biofilm growth using the Plate Biofilm Assay method with three repetitions. The results of the research show that total flavonoids can reduce the growth of MRSA 22156 biofilms. The use of total flavonoids from A. precatorius L. leaves in concentrations of 800 mgL-1 to 25 mgL-1 has been proven to have an effect on biofilm growth activity as indicated by the reduction in MRSA 22156 biofilm growth by 67.9% and 25%. The ethanol extract of A. precatorius L. has anti-biofilm activity in reducing the growth of Staphylococcus aureus bacteria that are resistant to Methicillin.
Etnobotani Tumbuhan Obat yang Dijual di Blok Bahan Jamu Pasar Raya I Salatiga Raditya Se'o Ananda; Suprihati Suprihati
Bioscientist : Jurnal Ilmiah Biologi Vol 11, No 2 (2023): 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.v11i2.9486

Abstract

Ethnobotany is a branch of science that studies the correlation between humans and plants. Generally, the basic ingredients for making herbal medicine come from types of medicinal plants. The majority of city residents buy medicinal plants from markets or drug stores. Pasar Raya I Salatiga as a source of meeting the needs of the people of Salatiga City. The aim of this research is to know the types of medicinal plants being sold, knowing the parts of the medicinal plants being sold, knowing the shape of the medicinal plants being sold, knowing how to obtain the medicinal plants being sold, and knowing the agrotechnological engineering actions of one of the medicinal plants being sold. This research is a qualitative descriptive research. This research was conducted with three herbal medicine sellers, three consumers, and three ginger farmers. This research was conducted in August-September 2023. Data collection techniques used semi-structured interviews, observation, literature study and documentation. Data processing with simple statistics. The research results found a total of 92 medicinal plants. The parts of medicinal plants sold include roots (4%), stems (7%), seeds (19%), fruit (16%), flowers (4%), leaves (26%), leaves & flowers (1%), herbs (1%), bark (4%), rhizomes (15%), and tubers (3%). The forms of medicinal plants sold include dry (71%), fresh (17%), dry & fresh (7%), and processed (5%). All medicinal plants are obtained by purchasing. Agrotechnological engineering actions carried out by ginger farmers include applying fertilizer, planting in the right season and scheduling planting.
Identifikasi Pencemaran Merkuri di Tanah Lokasi Aktivitas dan Pasca Aktivitas Penambangan Emas Tanpa Izin di Desa Roko Kabupaten Halmahera Utara Margaretha Tabita Tuny; Kurnia Kurnia; Tania Ayu Sudrajat; Kres Mahudin; Melisa Ganna; Defrit Luma
Bioscientist : Jurnal Ilmiah Biologi Vol 11, No 2 (2023): 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.v11i2.9138

Abstract

Research has been carried out with the title identification of mercury pollution in soil at activity locations and post-unlicensed gold mining (PETI) activities in Roko Village, North Halmahera Regency, with the aim of determining the level of pollution and distribution of mercury at PETI and post-PETI activity locations. Sampling used the proportional sampling method in which 5 soil samples were taken at each location. Soil pH measurements were carried out in situ using a Soil Survey Instrument. To analyze mercury concentration in soil, soil samples were taken, preserved, prepared and tested for mercury concentration using a mercury analyzer. The analysis results show that the pH category at the PETI activity location is in the acid category with a pH range of 4.5-5. Meanwhile, the soil pH at the post-PETI location is in the acid to slightly acid category, namely pH 5-6. The results of the analysis of mercury concentrations in the soil at the PETI location ranged from 3.21 mg/kg - 74.99 mg/kg and post-PETI activity locations ranged from 1.76 mg/kg - 167.1 mg/kg at a radius of 0-50 m and has exceeded the normal criteria for mercury in soil and reached the very critical criteria category.
Meta-Analisis : Studi Pentingnya Mengukur Keterampilan Metakognitif Siswa Titi Laily Hajiriah; AAIA Rai Sudiatmika; I Ketut Suma; I Nyoman Suardana
Bioscientist : Jurnal Ilmiah Biologi Vol 11, No 2 (2023): 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.v11i2.9567

Abstract

This study aims to find the effect size of several journals that contain articles with uniform topics. The purpose of finding effect size is to measure the extent of differences or relationships between two or more variables or groups in scientific research. Effect size provides information regarding the strength and size of the observed effect, regardless of the sample size used. By evaluating effect size, researchers can determine the practical significance of their findings and compare the results of studies conducted by other researchers. The key word of this meta-analysis study is metacognitive skills. This meta-analysis is important to get an idea of studies that report the results of measuring metacognitive skills at various levels. The research method used in this study is a meta-analysis method with an experimental approach to journal tracking using OpenMEE software with keywords used, namely metacognitive skills, metacognition, metacognition awareness. Based on meta-analysis calculations that there is a relationship between all metacognitive skill measurement articles, a p value of < 0.001 means that the analysis is significant with sig. 0.05 and I^2 above 80% indicate that heterogeneity of learning measures metacognitive skills of 93.985 and the sample effect size in this study is very high heterogeneity.
Analisis Pemanfaatan Hutan Kota Giong Siu Kecamatan Sandubaya Kota Mataram sebagai Destinasi Wisata Edukasi Husnul Jannah; Sri Nopita Primawati; Nita Eriesta
Bioscientist : Jurnal Ilmiah Biologi Vol 11, No 2 (2023): 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.v11i2.9396

Abstract

The existence of urban forests is very important in supporting climate, health and educational facilities in urban areas. The Giong Siu City Forest tourism was born from the creativity of the Babakan community, the Bahana Sustainable Tourism Awareness Group (Pokdarwis). Potential of Giong Siu City Forest as an educational tourism facility. This research really needs to be carried out, considering the function of urban forests which is really needed in educational institutions and the community, more specifically in forestry study programs where one of the subjects is urban forests. The method used is descriptive qualitative, where data collection is carried out by classifying primary data and secondary data. For secondary data, interviews are conducted with managers and visitors as samples which are carried out using the exidential technique, namely collecting as much data as possible from potential and presentative visitors. Data analysis through the existing facilities approach (amenities, accessibility, accommodation, attractions and activities) as a guide in presenting data scientifically and clearly regarding events in the field at the time of the survey (existing conditions) by telling the true conditions of the urban forest. The research results show that 70% of the information obtained from visitors about the existence of the Giong Siu City Forest is from friends, meaning that socialization is still done manually by word of mouth, only 10% is from social media (Instagram) and 20% is from residents who actually live there. around the Giong Siu City Forest. The results of interviews with Giong Siu tourism managers, who more often visit the Giong Siu City Forest, mostly students, students and kindergarten or elementary school children who do outdoor study, Giong Siu is usually busy on Saturday nights and Sundays, because it is not only a place To relax, Giong Siu City Forest itself has prepared several tents and hammocks which have been facilitated by the government for visitors who want to camp. Based on the description above, it can be concluded that the Giong Siu City Forest already has various adequate facilities as a recreation area, camping ground, flying fox, prayer room and bathroom. However, there are several shortcomings that the Giong Siu City Forest management must pay attention to, such as the addition of bathroom facilities that do not utilize the empty land that still exists around the Giong Siu City Forest.
Perbandingan Pola Rasio Morfometrik dan Karakteristik Habitat Dua Spesies Ikan Cupang Alam (Betta spp.) Endemik Pulau Bangka Destra Ramadhanu; Mustobi Prananda; Ufi Ayu Wulandari; Rahmad Hidayat; Ahmad Fahrul Syarif
Bioscientist : Jurnal Ilmiah Biologi Vol 11, No 2 (2023): 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.v11i2.9598

Abstract

Bangka Island has extraordinary biodiversity. Bangka Island has various types of freshwater fish, including local and endemic fish. The natural betta fish Betta burdigala and Betta chloropharynx are two species of fish endemic to Bangka Island which are considered endangered. The aim of this study was to analyze the differences in morphology and habitat characteristics between these two species. This research uses a quantitative descriptive approach. The fish samples used were 10 Betta burdigala and Betta chloropharynx fish taken from Bikang Village, South Bangka Regency and Jade Bahrin Village, Bangka Regency from August to September 2023. The data obtained were analyzed descriptively and presented as graphs or tables. There are eight main characteristics based on morphometric ratios, namely Total Length (TL), Body Length (BL), Tail Length (TL), Head Length (HL), Head Height (HH), Body Width-I (BW-I), Body Width-II (BW-II), and Body Width-III (BW-III). Based on morphometric ratios, there are differences in all morphometric characters. Betta burdigala and Betta chloropharynx live in peat swamp waters, the pH of Betta burdigala water is lower than the pH of Betta chloropharynx water, the color of Betta burdigala water is more black brown, while the color of Betta chloropharynx water is clearer.
Variasi Ukuran Payudara sebagai Daya Tarik Fisik Perempuan di Masyarakat Lampung Winati Nurhayu; Eri Luxiana; Andy Darmawan; Jeane Siswitasari Mulyana; Gres Maretta
Bioscientist : Jurnal Ilmiah Biologi Vol 11, No 2 (2023): 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.v11i2.8955

Abstract

Sexual selection occurs when living organisms, including humans, exhibit specific preferences for morphological traits related to health and fertility when choosing a mate. Various physical characteristics such as body size and shape, leg length, skin color, hair length and color, facial features, and breast size contribute to the physical attractiveness of females in mate selection. Breasts can serve as a particular attraction for males, as they are believed to be associated with health and fertility for reproductive purposes. Sexual selection leads to a range of breast sizes, from small to large, within a population. The aim of this research is to investigate the variation in breast size preferences among females in the Indonesian society, specifically in Lampung. The study was conducted by distributing both online and offline questionnaires randomly with breast size stimuli in the form of images. Descriptive data analysis was employed to examine the variation in breast size preferences. Very large breast sizes were considered healthy and feminine by respondents, while medium sizes were deemed attractive. Married male respondents preferred larger breast sizes on average compared to unmarried respondents. Higher-income respondents tended to select larger breast sizes. Respondents with lower educational backgrounds tended to prefer smaller breast sizes. Respondents residing in rural areas preferred larger breast sizes compared to those living in urban areas. In conclusion, sexual selection applied among the population of Lampung in the context of breast size preferences.
Uji Antagonis Bacillus subtilis ATTC 6633 dan Trichoderma harzianum terhadap Pertumbuhan Magnaphorte oryzae pada Benih Padi Anak Daro dengan Variasi Lama Perendaman Feskaharny Alamsjah; Zozy Aneloi Noli; Riesca Salsabilah Rahmayati; Suwirmen Suwirmen; Anthoni Agustien; Kurniadi Ilham
Bioscientist : Jurnal Ilmiah Biologi Vol 11, No 2 (2023): 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.v11i2.9468

Abstract

Magnaphorte oryzae is a pathogenic fungus that causes blast disease in rice plants. This disease can cause a decrease in rice production. Therefore, it is necessary to control the disease, one of which is by administering microbes that are antagonistic to Magnaphorte oryzae. This research aims to determine the percentage of inhibitory power of Bacillus subtilis ATTC 6633 and Trichoderma harzianum on the growth of Magnaphorte oryzae with varying soaking times of 24, 48 and 72 hours on the Anak Daro rice variety. This research carried out viability tests for Bacillus subtilis ATTC 6633 and Trichoderma harzianum, as well as antagonist tests using the dual culture method. The results showed that the growth inhibition of Magnaphorte oryzae by Bacillus subtilis ATTC 6633 for a soaking period of 24 hours was 28.48% in the weak category, 48 hours was 32.27% and 72 hours was 31.01% in the medium category. Inhibition of Magnaphorte oryzae by Trichoderma harzianum for a soaking period of 24 hours was 50.63%, 48 hours was 57.59%, and 72 hours was 56.32% in the high category.
Desain Lembar Kerja Praktikum Berbasis Masalah untuk Menunjang Keterampilan Proses Sains (KPS) pada Materi Kualitas Perairan Susy Amizera; Elvira Destiansari; Didi Jaya Santri; Lucia Maria Santoso
Bioscientist : Jurnal Ilmiah Biologi Vol 11, No 2 (2023): 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.v11i2.9303

Abstract

Industrial activities can increase waste discharge which has an impact on reducing water quality. Decreasing water quality requires methods for solving problems. The development of problem solving abilities can be improved in practical activities. In practical learning, students are expected to be able to reconstruct concepts through solving problems, so they can develop science process skills. These practical activities can be facilitated using problem-based practical worksheets. The aim of this research is to design problem-based practicum worksheets to support students' science process skills related to preliminary studies, product development design, validity testing, and student responses to small-scale testing. The type of research used is development research using the Borg & Gall model to small scale trials. This research was carried out from July to August 2023. The data collection techniques used in this research were interviews and giving questionnaires. The instruments used in this research were an interview guide sheet, a questionnaire sheet for product validation, and a student response questionnaire sheet. Next, the data was analyzed descriptively. Based on the research results, it can be seen that the practicum worksheet that was developed began with a preliminary study regarding the need for problem-based practicum worksheets on water quality material. The design developed is based on problem-based practical worksheet components that have been validated by two experts. Furthermore, a small-scale trial was carried out which showed that the material aspects were categorized as very good, the graphics were categorized as good, and the language was categorized as very good. Thus, the results of this development can be continued in large-scale tests and can be implemented in the practical learning process.

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