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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 80 Documents
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Search results for , issue "Vol 11, No 1 (2023): June" : 80 Documents clear
Uji Penerimaan Konsumen terhadap Mutu Organoleptik Petis Ikan Situbondo dengan Metode Uji Kesukaan Dewi Sarastani; Ima Kusumanti; Cecilia Eny Indriastuti
Bioscientist : Jurnal Ilmiah Biologi Vol 11, No 1 (2023): 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.v11i1.6984

Abstract

Fish paste is a local product which is a source of income for coastal communities in Situbondo Regency. Production of fish paste is still dominated by household business scale. In addition to paying attention to chemical and microbiological quality, it is necessary to pay attention to sensory quality to meet the quality and food safety requirementsof the paste. Even, organoleptic quality greatly determines consumer acceptance to buy products. This study aims to determine consumer acceptance of the organoleptic quality of four types of fish paste products produced by producers A, B, C, and D in Situbondo Regency. Testing on consumer acceptance is carried out by sensory testing using the hedonic test method. The sensory parameters tested included: color, aroma, taste, aftertaste, and overall acceptance of the paste. There are 9 hedonic scales used in this test, namely very dislike (1), really dislike (2), dislike (3), rather dislike (4), neutral (5), rather like (6), likes (7), likes very much (8), and likes very extremely (9). The numerical scale (1-9) is processed using ANOVA and Duncan's test. The results showed that the organoleptic quality of the four types of fish paste was rated somewhat neutral (5) to rather like (6). Among the four products, the fish paste D (5.84) and B (5.75) that are most accepted by consumers with characteristics: dark brown paste, the aroma of spices and fish are smelt, the savory taste is felt, the fishy aftertaste doesn't linger in the mouth, and the texture is homogeneous-elastic-soft. While the petis made by producer A got a preference value of 4.92 (ordinary) and the petis made by producer B with a preference value of 5.17 (ordinary).
Aktivitas Cendawan Antagonis Trichoderma terhadap Fusarium dari Tanaman Kentang di Kecamatan Pakis Kabupaten Magelang Susiana Purwantisari; Wahyu Aji Mahardhika; Mochammad Faiq Qoys Naufal; Arina Tri Lunggani; Siti Nur Jannah
Bioscientist : Jurnal Ilmiah Biologi Vol 11, No 1 (2023): 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.v11i1.6630

Abstract

Potato is one of the common plants cultivated in Indonesia and used as a food ingredient besides rice. One of the pathogens that can attack potatoes is Fusarium. Farmers usually use synthetic fungicides to inhibit Fusarium infection, but this method is not environmentally friendly. One of the countermeasures for Fusarium can be done with the antagonistic fungus Trichoderma. This study aims to examine the antagonistic of Trichoderma spp. toward isolate Fusarium spp. from potato plants showing wilting symptoms. The method was carried out by isolating the fungus from potatoes with wilting symptoms, identifying it, and testing 4 Trichoderma strains using a double culture method. The fusarium obtained was identified as F. begoniae, F. foetens, F. mooniliforme, and F. oxysporum. A total of 2 Trichoderma strains originating from litter and trash cans were able to inhibit all Fusarium tests on day 2 and achieve 100% growth inhibition on day 4, while the other 2 Trichoderma strains only showed inhibition on day 4 to day 7. Further tests are needed to understand the mechanism of Fusarium attack, and to identify the antifungal compounds produced by Trichoderma.
Validitas Modul Berbasis Website pada Materi Ekosistem untuk SMA Kelas X Zikra Zikra; Dwi Resti Avriananda; Evrialiani Rosba
Bioscientist : Jurnal Ilmiah Biologi Vol 11, No 1 (2023): 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.v11i1.6959

Abstract

Limited teaching materials used by teachers and students such as printed books make it difficult for teachers to provide explanations and students find it difficult to understand learning outside of school. The textbooks used in general are good but need to be updated because the pictures presented in the printed books are not clear and are in black and white. Teachers rarely use modules and teachers never use web-based teaching materials. With internet facilities that are already available, teachers can further improve the quality of learning activities, such as using web-based teaching materials as learning resources. Therefore, by utilizing the internet as a learning resource, simple teaching materials are needed, namely website-based modules. This study validates a web-based module on ecosystem material for class X SMA. website based. The method used in this research is development (Research & Development) with the ADDIE model. The stages of development research are carried out with several stages that have been modified according to the needs of researchers, namely: 1) the analysis stage; 2) the design stage (design); and 3) development stage. At the analysis stage, needs analysis is carried out, at the design stage, modules are compiled, and at the development stage, expert validation is carried out. The instrument used in this study is a validation sheet which includes validation of the feasibility of content, language, presentation, graphics, and media use. The results showed that the validity of the website-based module was very valid with an average of 91%. Based on these results it can be concluded that the resulting website-based module is very valid and suitable for use as teaching material.
Keanekaragaman Jenis Burung pada Berbagai Tipe Habitat di Pulau Belitung Diandra Fauzia Lestari; Insan Kurnia
Bioscientist : Jurnal Ilmiah Biologi Vol 11, No 1 (2023): 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.v11i1.6725

Abstract

Belitung Island is a satellite island of the mainland of Sumatra Island. So far, bird research has been very rare and there have been almost no recent publications, so research on birds on Belitung Island is needed. The research was conducted during February-April 2020 in seven habitat types in 18 locations. Data were taken using the IPA (Index Point of Abundance) method with observation times between 05.30-09.00 am and 03.00-06.00 pm. Qualitative analysis was carried out on the bird status, while quantitative analysis was carried out using: 1) chi-square for bird species richness; 2) Shannon-Wiener diversity index (H'); 3) evenness index (E); and 4) bird community similarity index (IS). There were 111 bird species from 40 families and 13 orders. The birds found significantly different between habitat types for the number of species (χ²count = 23.73; df = 6; P < 0.05) and the number of individuals (χ²count = 361.65; df = 6; P < 0.05). The number of bird species found ranged from 14 species (lake habitat) to 50 bird species (coastal habitat). One bird species can be found in all habitat types, namely Cinnyris jugularis. Nine species of shorebirds were found. The bird diversity index (H') was obtained at 3.83 which is included in the high category and the bird evenness index (E) was obtained at 0.81 which is included in the high category and means the community is stable. The community similarity index (IS) values between habitat types ranged from 0.10-0.33.
Analisis Keragaman Fitoplankton di Sungai Barumun Kecamatan Panai Tengah Kabupaten Labuhanbatu Sari Mawaddah Harahap; Arman Harahap
Bioscientist : Jurnal Ilmiah Biologi Vol 11, No 1 (2023): 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.v11i1.7015

Abstract

Research on the analysis of the diversity of phytoplankton has been carried out in the Barumun River, Panai Tengah District, Labuhanbatu Regency. The Barumun River is widely used by the surrounding community for various activities, for example: disposal of industrial waste, household waste, fish auctions, ports, and fishing. This activity resulted in the Barumun River being polluted with increasingly turbid water color. The purpose of this study was to determine the diversity of phytoplankton in the Barumun River. This type of research is a descriptive research with a quantitative approach. Sampling used Plankton Net mesh size 30 μm from 3 stations with 10 repetition, observed using a microscope, identified using the book "Marine and Fresh Plankton", counted, and analyzed the diversity index of plankton in the Zoology Laboratory, Biology Education Department, FKIP, University Labuhanbatu. Plankton abundance was calculated using the Lackey Drop micro-count method and Plankton diversity was calculated using the Shannon-Wiener formula. The results showed that the phytoplankton found were dominated by Diatoms and Dinoflagellates, with the highest average abundance being from the genus Cerratulina (1015 ind/L), and the lowest abundance value was from the Protoperidiun genus (5 ind/L). The diversity index is included in the moderate diversity category (1.48-1.90), and the dominance index is in the range of 0.24-0.28 with a low category.
Uji In Vivo Elaeocarpus sphaericus Schum terhadap Kadar Gula Darah dan Struktur Jaringan Testis, Pankreas, dan Ginjal Cicilia Novi Primiani; Pujiati Pujiati; Mohammad Arfi Setiawan
Bioscientist : Jurnal Ilmiah Biologi Vol 11, No 1 (2023): 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.v11i1.5938

Abstract

Genitri plant (Elaeocarpus sphaericus Schum) has a complex chemical compound that has the potential to lower blood sugar levels. The purpose of this study was to analyze in vivo blood sugar levels and changes in tissue structure of the pancreas, testes seminiferous tubules, and sucrose-induced kidneys. The study used an experimental approach, 24 male Mus musculus mice were grouped into 4 treatment groups. Negative control (P0), positive control giving sucrose at a dose of 1.125 mg/g (P1); Sucrose induction treatment was at a dose of 1.125 mg/g and Gintri seed simplicia was at a dose of 1.300 mg/g (P2). Experimental animals before being induced by sucrose were fasted for 2 hours. Sucrose induction was carried out for 5 days, the experimental animals were given food and drink ad libitum. Checking blood sugar levels every 4 hours through the tail vein. Blood sugar levels of experimental animals P2 and P3 were 126 mg/ each followed by administration of a solution of genitri seeds and fruit for 36 days, every 6 days data was collected on blood sugar levels. On the 37th day, dislocation, surgery and organ harvesting of the testes, pancreas and kidneys were carried out, and preparation of HE staining tissue was made. Data analysis using One Way Anova. The results showed that sucrose induction reduced the diameter of the islets of Langerhans, increased the diameter of the seminiferous tubules of the testes, and reduced the diameter of the glomerulus of the kidney. Giving genitri seeds and fruit lowers blood sugar levels, affects the tissue structure of the pancreas, testes, and glomerulus. The F value of the diameter of the pancreatic islets of Langerhans 16,662; testicular seminiferous tubule diameter 13,433; Glomerular diameter 28,958.
Etnobotani Tumbuhan sebagai Bahan Tambahan Pangan oleh Masyarakat Suku Dayak Bakati’ di Dusun Segiring Kabupaten Bengkayang Syamswisna Syamswisna
Bioscientist : Jurnal Ilmiah Biologi Vol 11, No 1 (2023): 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.v11i1.6492

Abstract

Ethnobotany is a community tradition of using plants to meet their daily needs, which is a legacy from generation to generation. This study aimed to identify the types of plants used as food additives by the Dayak Bakati Tribe in Segiring Hamlet, Bengkayang Regency, West Kalimantan Province. This study used descriptive methods, made direct observations at the research site, and conducted interviews with informants. The informants are women from the Dayak Bakati Tribe who use plants as food additives and live in Bengkayang Regency. Data was collected using triangulation, namely interviewing informants, observing, and documenting photographs for the documentation of the plant. Information on plants used for ingredients added to food is identified to determine the scientific name. Plants used as food additives by the Dayak Bakati' Tribe in Dusun Segiring, Bengkayang Regency, are 40 species consisting of 24 Families, namely: Zingeberaceae, Apiaceae, Solanaceae, Rutaceae, Fabaceae, Liliaceae, Oxalidaceae, Myrtaceae, Amaryllidaceae, Araliaceae, Lauraceae, Anacardiaceae, Arecaceae, Laminaceae, Euphorbiaceae, Polygonaceae, Piperaceae, Gnetaceae, Bromeliaceae, Pandanaceae, Poaceae, Apiaceae, Sapindaceae, and Strombociaceae. The leaves of the plants Arytera littoralis and Lepionurus sylvestris are used by the Dayak Bakati' Tribe as additional cooking ingredients because they give a taste and aroma like mice. The parts of the plant used are bark and stems, leaves, seeds, tubers, rhizomes, and fruit. The part of the plant that is often used is the leaf. Processing is by slicing/ cutting into small pieces, mashed, and the plant organs utilized are directly inserted into the food being processed. Plants as food additives do not have side effects, they are better used than seasonings containing chemicals.
Selection and In-Vitro Potentials of Amylolytic Yeast from Several Ragi Tapai in West Sumatra Province Inelvi Yulia; Adewirli Putra; Wiya Elsa Fitri; Gusliani Eka Putri
Bioscientist : Jurnal Ilmiah Biologi Vol 11, No 1 (2023): 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.v11i1.6924

Abstract

Ragi Tapai is a starter used for the fermentation of cassava and glutinous rice to produce conventional fermented products, such as Tapai in Indonesia. Ragi Tapai contains several enzymes and microbes that help the Tapai fermentation process. The purpose of this study was to identify the most potential amylolytic yeast and in-vitro potential (amylolytic, cellulolytic, and fermentative). GPA, YEA, APB, CMCA, and  GPACaCO3 were used as a medium for selection and characterization. The result showed that in the seven samples of Ragi Tapai West Sumatra (Padang, Padang Pariaman, Batusangkar, Padang Panjang, Payakumbuh, Solok, dan Pesisir Selatan), there was three amylolytic yeast including  genera Schizosaccharomyces (1 dan 2) and 1 genus Trichosporon. In-vitro potential, showed the genera Schizosaccharomyces and Trichosporon have amylolytic, cellulolytic, and fermentative potential. Genera Schizosaccharomyces 1 has greater amylolytic potential than genera Schizosaccharomyces 2 and Trichosporon.
Pengembangan LKPD Berbasis Keterampilan Proses Sains dengan Pengayaan Cerita Rakyat Sambas Dita Lindayani; Wolly Candramila; Asriah Nurdini Mardiyyaningsih
Bioscientist : Jurnal Ilmiah Biologi Vol 11, No 1 (2023): 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.v11i1.6364

Abstract

Folklore is a reflection of the life of the old community, whether in the form of fairy tales, myths, sages, or legends. In this research, the objects in the folklore of Sambas people were packaged in a worksheet as teaching materials based on science process skills. This study aimed to describe the development of a worksheet as teaching material, the results of its validation, and student questionnaire response tests on the science process skill-based living classification system sub material for high school students in class X. This type of research is descriptive of the research and development methods of the ADDIE model. The development stages used include analysis, design, development, and implementation. The research instruments used were interview sheets, validation sheets, and student response questionnaire sheets. The development of student worksheets based on science process skills-based living classification system sub material with folklore enrichment has been successfully carried out. However, the validation results are still not declared valid (CVI = 0.93), especially in conformity with basic competency, competence achievement indicators, and learning objectives, as well as providing motivation. After being revised, students responded to the results of the student worksheet by 89.06% or were in the very high category.
Bioprospeksi Ekstrak Etanol Batang Serai Dapur Cymbopogon citratus (DC.) Stapf. sebagai Antibakteri Staphylococcus aureus ATCC : 25923 Reza Anindita; Anna Affifah Ramadhena; Melania Perwitasari; Dede Dwi Nathalia; Maya Uzia Beandrade; Intan Kurnia Putri
Bioscientist : Jurnal Ilmiah Biologi Vol 11, No 1 (2023): 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.v11i1.7072

Abstract

Bioprospection of medicinal plants does not only require empirical information, but also requires scientific evidence information. One of the potential medicinal plants that require scientific evidence regarding the ability of antibacterial activity is lemon grass (Cymbopogon citratus). The purpose of this study was to determine the effectiveness of lemongrass in inhibiting the growth of Staphylococcus aureus bacteria. The design of this study was an experiment using ethanol extract samples of lemon grass stems and bacteria S. aureus ATCC : 25923. The research procedures included: determination, preparation, extraction, evaporation, and phytochemical screening of lemon grass stem powder taken from the Pasir Angin area, Bogor, West Java. Treatments in this study included: ethanol extract of lemon grass stems with concentrations of 10%, 20%, 30%, 40%, 50%, 30µg chloramphenicol as positive control, and sterile distilled water as a negative control. All treatments were given 30µL on MHA media containing S. aureus culture. Data analysis in this study was carried out with a quantitative descriptive test. The results showed that the yield percentage of the viscous extract was 18.59% with positive phytochemical screening for alkaloids, tannins, saponins, flavonoids, and terpenoids. The antibacterial test results of the ethanol extract of lemon grass stem 10%, 20%, 30%, 40%, and 50% against S. aureus were able to produce inhibition zone diameters of 1 mm, 1.25 mm, 2 mm, and 2.41 mm, and 3 mm with sensitivity response category resistant. The conclusion in this study was that the administration of ethanol extract of lemon grass stems with 10%, 20%, 30%, 40%, and 50% was not effective in inhibiting the growth of S. aureus so that the lemon grass stems were taken from the Pasir Angin area, Bogor, West Java not recommended as a candidate raw material for pharmaceutical formulations.

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