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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 1,330 Documents
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Identifikasi Bakteri Escherichia coli dan Salmonella sp. pada Produk Ayam Geprek di Kantin Universitas Tadulako Rofiqoh, Rofiqoh; Kundera, I Nengah; Windarsih, Yulia; Buntu, Amalia; Budiarsa, I Made; Ashari, Abdul
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.v13i2.15735

Abstract

This study aims to identify the presence of Escherichia coli and Salmonella sp. in "ayam geprek" products sold at the canteens of Tadulako University. The type of research used is descriptive-exploratory with quantitative examination methods using the Most Probable Number (MPN), Total Plate Count (TPC), and further identification using the Microbact System and Microbact System 2000 Software. Samples were taken from three different faculty canteens using a stratified random sampling technique. The results showed that (1) Test using the Most Probable Number (MPN) method obtained the highest value of 150x102 CFU / ml came from the FMIPA canteen sample, 28x102 CFU / ml samples from the FKIP canteen and the lowest value of 27x102 CFU / ml samples from the FKIP canteen. (2) Test using the Total PlateCount (TPC) method obtained the highest value of 105x103 CFU / ml came from the FMIPA canteen sample, 217x102 CFU / ml FKIP canteen sample, and the lowest value of 120x102 CFU / ml FKIP canteen sample. (3) Validation identification of the percentage of samples showing contamination by Escherichia coli and Salmonella sp., with a validation level above 90%. Thus, all samples in this study were positive for the presence of Escherichia coli and Salmonella sp. bacteria.
Struktur Anatomi Daun Mangrove Jenis Avicennia lanata Ridl. dan Sonneratia Alba J.E. Smith di Desa Siney Tengah, Parigi Moutong Antika, Rindi; Isnainar, Isnainar; Febriawan, Aan; Nurdin, Musdalifah; Mawaddah, Hayyatun; Lilies, Lilies
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.v13i2.15748

Abstract

This study aims to describe and compare the anatomical structure of mangrove leaves of Avicennia lanata Ridl. and Sonneratia alba J.E. Smith in the coastal area of Central Siney Village, South Tinombo District, Parigi Moutong Regency. This study used a quantitative descriptive approach and was conducted at the Biology Education Laboratory, Faculty of Teacher Training and Education, Tadulako University in November 2024. The research samples were A. lanata and S. alba mangrove leaves collected from the research location, with data obtained through microscopic observation, documentation, and questionnaires. The results showed that there were differences in the anatomical structure of the leaves of the two mangrove species, especially in the type of stomata, the thickness of mesophyll tissue, and the development of salt glands. Avicennia lanata has actinocytic stomata and more developed salt glands, while Sonneratia alba has cyclic stomata and thicker pole tissue. Both have similar basic leaf structures, such as cuticle, epidermis, cortex, and xylem and phloem transport tissues. Thus, there are distinctive anatomical adaptations in each species, reflecting survival strategies in the mangrove ecosystem.
Pengaruh Model Pembelajaran Project Based Learning dengan Menggunakan Mind Mapping terhadap Hasil Belajar Siswa di kelas Vlll SMP Negeri 5 Bolano Lambunu Maharani, Sri; Lilies, Lilies; Rauf, Abd; Bustamin, Bustamin; Ashari, Abd; Bialangi, Mursito S
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.v13i2.15766

Abstract

This study aims to determine the effect of the Project Based Learning learning model using Mind Mapping on student learning outcomes in class VIII of SMP Negeri 5 Bolano Lambunu. This research method is a quasi-experiment (Quasi Experiment) with a Non-equivalent (Pretest and Posttest) Control Group Design. The sample of this study was 34 students, consisting of 17 students in the experimental class who used the Project Based Learning learning model using Mind Mapping and 17 students in the control class who used the conventional learning model. Data collection was carried out by conducting observations, interviews, and tests. Data analysis used prerequisite tests, namely, normality tests and homogeneity tests and hypothesis testing using the Independent Sample t-test and N-gain tests. The results of the study showed that (1) there was an effect of using the Project Based Learning learning model using Mapping on student learning outcomes. This is evidenced by a significant increase in student learning outcomes in the experimental class, with an average posttest score reaching 73.23, while the control class was only 64.70. The t-test shows a p value < 0.05, which means that the implementation of the Project Based Learning model using Mapping has a positive effect on student learning outcomes. (2) N-gain analysis shows that the experimental class has an average N-gain score of 0.65 (65%), which is included in the fairly effective category, while the control class is only 0.51 (51%), which indicates a less effective category. Thus, it can be concluded that the Project Based Learning learning model using Mind Mapping is effective and can affect student learning outcomes in the science subject of class VIII-B SMP Negeri 5 Bolano Lambunu.
Pengaruh Model Pembelajaran Kooperatif Tipe Team Games Tournament (TGT) berbantuan Media Kotak Kartu Misterius (KOKAMI) terhadap Aktivitas dan Hasil Belajar Siswa pada Mata Pelajaran IPA Biologi di SMP Negeri 19 Palu Aziza, Nurul Inaya; Jamhari, Mohammad; Windarsih, Yulia; Shamdas, Gamar; Rafiqa, Rafiqa; Jayanti, Zulaikhah Dwi
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.v13i2.15769

Abstract

This study aims to determine the effect of Team Games Tournament (TGT) cooperative learning model assisted by Mysterious Card Box (KOKAMI) media on students' Biology Science learning activities and outcomes at SMP Negeri 19 Palu. Teacher-centered learning models tend to reduce student interaction and participation, so a more active and innovative approach is needed, such as TGT with KOKAMI media to improve student learning activities and outcomes. The research method used was quasi-experiment with post-test only control group design. Data were collected through activity observations and learning outcome tests, with samples taken purposively. Data analysis was carried out quantitatively through comparison of the average scores of experimental and control classes. The t-test results using SPSS ver.29 showed a significance value (2-tailed) of 0.001 < α 0.05. Thus, the alternative hypothesis (H1) which states that there is a significant difference in activity and learning outcomes between the experimental and control classes is accepted. This shows that the application of the TGT cooperative model assisted by KOKAMI media has a real effect in increasing the activity and learning outcomes of Biological Science. This model has the potential to be applied more widely to improve the quality of science learning at the secondary school level.
Formulasi dan Uji Mutu Fisik Sediaan Hand Cream Ekstrak Kulit Ubi Jalar Kuning (Ipomoea batatas L.) Safitri, Cikra Ikhda Nur; Pristya, Putri Firnabila
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.v13i2.15774

Abstract

This study aims to evaluate the potential of yellow sweet potato skin extract as an active ingredient in topical hand cream preparations and to analyze the physical characteristics of the preparation. Extraction of active substances is carried out through a maceration process with 70% ethanol solvent for 3 days to obtain optimal extract from sweet potato skin. The hand cream formulation uses two concentrations of sweet potato skin extract, namely 2% and 4%, which are tested with several physical quality parameters. Organoleptic testing shows that the hand cream is soft, easily absorbed, and homogeneous. The pH test results had an average of 5.5 in all three replications, the viscosity in non-concentration showed results of 9381 mPas, F1 15976 mPas, and F2 19618 mPas, and the spreadability showed 5.3 in all three replications. The conclusion of this study is that the formulation of yellow sweet potato skin extract shows good physical characteristics or is considered to meet SNI standards. The implications of these results indicate that yellow sweet potato skin extract can be developed as a promising natural active ingredient in the formulation of skin care products, especially hand cream.
Karakteristik Morfologi Jenis-Jenis Mangrove di Kawasan Wisata Karosondaya Desa Sausu Tambu Darise, Aswan A.; Isnainar, Isnainar; Febriawan, Aan; Febriani, Vita Indri; Buntu, Amalia; Mawaddah, Hayyatun
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.v13i2.15777

Abstract

This study aims to describe the observed morphological characteristics consisting of mangrove types or species, soil substrates, roots (root types, root modifications and root colors), stems (stem color, stem texture and diameter), leaves (leaf shape, leaf texture, leaf tips, leaf color and leaf length), fruits (fruit types and fruit shapes), flowers (colors and shapes) of true mangrove species in the Karosondaya tourist area of Sausu Tambu Village. This type of research is a descriptive type of research conducted by determining the research location by purposive sampling which is divided into 3 observation stations. Sampling was carried out by exploring and free collection. The results of the study showed that there were 11 mangrove species identified in the Karosondaya tourist area of Sausu Tambu village. The types of mangrove plants found consisted of Rhizophora apiculata (Blume), Rhizophora stylosa (Griffith), Ceriops decandra (Griff), Ceriops tagal (Perr) C.B. Rob, Ceriops zippeliana (Blume), Bruguiera gimnorhiza (L). Lam, Xylocarpus granatum (J. Keonig), Sonneratia alba (J.E.Smith), Sonneratia ovate (Backer), Avicennia germinans (L), Lumitzera rasemosa (Willd). With the dominant species being Rhizophora apiculata (Blume), Rhizophora stylosa (Griffith), Avicennia germinans (L), while the rare or rarely found species were Lumnitzera racemosa (Willd) and Ceriops tagal (Perr.) C.B. Rob.
Efektivitas Penggunaan Media Sosial TikTok Untuk Pembelajaran Biologi di SMA Negeri 1 Rantau Utara Arnisah, Miftaah; Harahap, Risma Delima; Hasibuan, Rosmidah
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.v13i2.15778

Abstract

This study aims to determine the effectiveness of using TikTok social media as a biology learning media at SMA Negeri 1 Rantau Utara. This research uses a descriptive method with a quantitative approach, to get an objective picture of how much influence TikTok has in supporting the teaching and learning process, especially in biology subjects. Respondents of this study were 40 people from 10 classes XI SMA Negeri 1 Rantau Utara. The data collection techniques used in this study were observation, interview, and questionnaire. The research data were analyzed descriptively. The results showed that the use of TikTok in learning biology was quite effective, with the effectiveness level reaching 56.8%. This shows that more than half of the respondents feel that learning through TikTok provides benefits in understanding biology material. Thus, TikTok has the potential as an alternative learning media that can support the learning process of students in today's digital era. The utilization of social media such as TikTok in education can be a relevant innovation to answer the challenges of 21st century learning.
Efek Kadar Urea Nitrogen Darah (BUN) pada Tikus Putih (Rattus norvegicus) Bunting Setelah Pemberian Monosodium Glutamat (MSG) Organik dan Sintetis Tias, Eriza Putri Ayu Ning; Restiadi, Tjuk Imam; Widjiati, Widjiati; Wicaksono, M Galih; Setyaningsih, Endang
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.v13i2.15781

Abstract

This study aims to explores blood urea nitrogen (BUN) levels in Wistar rats exposed to synthetic and organic MSG to identify potential renoprotective effects. The study design involved a control group (K) that was fed a normal diet only, and six treatment groups (P1–P6) that received doses of organic or synthetic MSG at 60, 120, or 240 mg/kg BW for 19 days. Each group consisted of six rats. MSG was administered orally and BUN levels were measured using the colorimetric method. The results showed no significant difference in BUN levels between the control group and the treatment groups (p > 0.05). The highest BUN levels were found in the control group, while the lowest levels were found in the group that received the highest dose of synthetic MSG (240 mg/kg BW). Additionally, BUN levels were lower with organic MSG at 120 and 240 mg/kg BW than with the 60 mg/kg BW dose, suggesting that bioactive compounds in tempeh and pineapple bromelain may have renoprotective effects. While the lowest BUN levels were observed in the group receiving the highest dose of synthetic MSG (240 mg/kg BW), this may be due to reduced protein intake or other metabolic adaptations rather than safety factors. Synthetic MSG at a dose of 240 mg/kg BW produced the lowest BUN levels, which may indicate reduced protein intake or other metabolic adaptations, rather than safety factors.
Analysis of Fiber Content, Reduced Sugar and Organoleptic Quality of Nata De Avocado on The Concentration Variations of Lime Juice and Mung Bean Extract Fikriansyah, Ibnu Zulfan; Suryani, Titik
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.v13i2.15793

Abstract

The purpose of this study was to determine the content of fiber, reducing sugar and organoleptic quality of nata de avocado on the concentration variations of lime juice and mung bean extract. This research method was an experiment with Completely Randomized Design (CRD), two factors. The first factor was lime juice 2.4% of the medium volume (6ml/250ml)/J1 and lime juice 2.8% of the medium volume (7ml/250 ml)/J2. The second factor was mung bean extract 20% of the medium volume (50ml/250 ml)/H1 and mung bean extract, 25% of the medium volume (62.5ml/250 ml)/H2 and nata de coco as a control. Organoleptic quality testing included color, texture, aroma, and acceptability carried out 25 respondents. The results showed the best content of fiber, reducing sugar and organoleptic quality of nata de avocado were 4.45%, 13.425%, white in color, chewy texture, non-sour aroma and quite likes in J2H1 treatment (2.8% of lime juice + 20% of mung bean extract).
Combination of Red Betel (Piper crocatum) Leaf and Sambiloto (Andrographis paniculata Ness) Herb Extract on Reduction of Lipid Profile in Diabetic Rats Tjahjono, Kusmiyati; Rahmawati, Nesti; Afifah, Diana Nur; Kinasih, Larasati Sekar
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.v13i2.15828

Abstract

This study aims to determine the antihyperlipidemic effect of a combination of red betel extract and sambiloto herb in an experimental animal model of Type 2 Diabetes Mellitus (T2DM). This study was a randomized pre-post-test experiment with a control group design on 25 male Sprague-Dawley rats. Rats experienced T2DM with a high-fat diet for 14 days and Streptozotocin (STZ) induction of 55 mg/kgBW preceded by nicotinamide (NA) 100 mg/kgBW. We confirmed T2DM if the rats' fasting glucose levels were less than 200 mg/dl. The rats were randomly divided into 5 groups: negative control (K1), positive control (K2), combination of red betel leaf and sambiloto herb extract 75:25 (P1), 50:50 (P2), and 25:75 (P3). The combination of red betel leaf and sambiloto herb extract at any dose was able to significantly reduce total cholesterol, LDL cholesterol, and triglyceride levels (p<0.05). The combined extract of red betel leaf and sambiloto herb at a ratio of 75:25 yielded the effective dose for reducing total cholesterol, triglyceride levels, and LDL. In T2DM rats, the combination of these extracts has the potential to increase total cholesterol, LDL, and triglyceride levels.

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