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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 103 Documents
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Search results for , issue "Vol 12, No 2 (2024): December" : 103 Documents clear
Pengembangan Media Pembelajaran IPA Berbasis Game Edukasi Untuk Meningkatkan Minat Belajar Anggreini, Nisah; Siregar, Zunaidy Abdullah; Machrizal, Rusdi
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.v12i2.14068

Abstract

The learning process is still carried out using manual methods, so students tend to get bored quickly when participating in learning activities in class. The aim of this research is to improve science learning outcomes by applying educational role playing learning methods to Class 7 students at SMPN 2 Ratu for the 2023/2024 academic year. This research was carried out at SMPN 2 Ratu, Labuhanbatu Regency, North Sumatra Province. The subjects in this research were 7th grade students of SMPN 2 Ratu, Labuhanbatu Regency, North Sumatra Province. This research is classroom action research with 2 cycles, each cycle consisting of 4 activities, namely planning, action, observation and reflection followed by planning in the next cycle by utilizing the results of previous reflection. The solution design in question is an action in the form of a role-playing learning method in teaching the subject of the Solar System for Class 7 SMPN 2 Ratu to 31 people. Research findings show that learning science using the educational role playing learning method can improve student learning outcomes as evidenced by the increase in science learning outcomes each cycle, namely from an average of 70.52 to an average of 80.19. students feel happy studying science in the field of biology with material on the greenhouse effect and are interested in learning.
Penghambatan Xantin Oksidase Oleh Gel Ekstrak Takokak (Solanum torvum Swartz) Berbasis Nanoteknologi Secara In Vitro Dwiyansyah, Muhammad Imam; Insyira, Rania; Mirsa, Almira Maurilla; Sawalia, Azzara Gita; Nugra, Daffa; Salmi, Salmi
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.v12i2.12610

Abstract

Inhibition of xanthine oxidase is one of the strategies in handling gout. This study aims to explore the potential of takokak fruit extract (Solanum torvum Swartz) in inhibiting nanotechnology-based xanthine oxidase in the form of nanoemulgel. This research is an experimental study conducted in several stages, namely qualitative phytochemical tests, quantitative identification of total flavonoid content and preparation of nanoemulgel made with 3.75% extract with variations of surfactant Tween 80 and PEG 400, namely F1 (30:30), F2 (35:25) and F3 (40:20). The ability of the extract and nanoemulgel was evaluated in inhibiting xanthine oxidase. The results showed that the ethanol extract of takokak fruit contained flavonoids, saponins, phenolics and tannins qualitatively. The total flavonoid content in the extract was 4.472 ± 0.133 mgQE. Formulation F2 has the smallest particle size (18.5 nm) and polydispersity index of 0.1313. Takokak fruit extract has almost the same inhibitory power as allupurinol with an IC50 value of 45.54 ppm. The IC50 value of nanoemulgel 3.75% takokak extract is 29.26 ppm so that the IC50 of the extract in nanoemulgel form is 1.10 ppm (45 times the IC50 of the crude extract). In conclusion, Formula F2 is the best formula in the preparation of nanoemulgel with particle size and polydispersion index and strong xanthin oxidase inhibitory activity.
Korelasi Kadar Total Flavonoid Ekstrak dan Fraksi Polar Kelopak Rosella (Hibiscus sabdariffa L.) Terhadap Aktivitas Antioksidan dengan Metode DPPH (2,2-Difenil-1-Pikrilhidrazil) Sari, Fita; Hidayatul, Fathul; Sariwati, Atmira; Wahyuni, Dwi; Hesturini, Rosa Juwita
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.v12i2.13205

Abstract

Senyawa metabolit sekunder rosella memiliki manfaat kesehatan, seperti hipertensi, diabetes, dan penyakit kardiovaskular. Rosella digunakan sebagai bahan minuman kesehatan, karena senyawa aktifnya seperti antosianin, polisakarida, dan flavonoid. Flavonoid dalam rosella diduga memiliki aktivitas antioksidan dalam menangkal radikal bebas penyebab penyakit. Penelitian ini bertujuan melihat profil fitokimia ekstrak dan fraksi polar kelopak rosella dengan Kromatografi Lapis Tipis (KLT) dan dilanjutkan menguji kadar total flavonoid serta aktivitas antioksidan dengan DPPH (1,1-difenil-2-pikrilhidrazil). Studi ini merupakan penelitian kualitatif dan kuantitatif, untuk mendeteksi profil fitokimia dari ekstrak dan fraksi kelopak rosella dilanjutkan uji kadar total flavonoid dan aktivitas antioksidan. Hasil penelitian menunjukkan bahwa (1) adanya senyawa flavonoid, ditandai bercak warna biru pada plat KLT, (2) uji kadar total flavonoid dari ekstrak menunjukkan sebesar 139,4321 ppm sedangkan fraksi polar 204,8334 ppm, (3) uji aktivitas antioksidan menunjukkan bahwa ekstrak rosella memiliki aktivitas lemah dengan nilai IC50 sebesar 656,4775 ppm, sedangkan fraksi lebih kuat dengan nilai IC50 sebesar 110,1132 ppm. Dengan demikian dapat disimpulkan bahwa ekstrak etanol dan fraksi polar kelopak rosella diduga memiliki senyawa flavonoid yang berperan sebagai antioksidan namun fraksi lebih kuat dibandingkan dengan ekstrak etanol kelopak rosella.
Hedonic Test of Instant Powdered Ginger Drink with Sugar and Sugar-Palm Sugar Combination Jannah, Husnul; Badi'ah, Baiq Arriyadul; Amalia Rachman, Irna Ningsi; Desimal, Iwan
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.v12i2.13207

Abstract

Stress, environmental pollution, radiation, and excessive food processing contribute to the production of free radicals, which are harmful to the body. Antioxidants play a role in preventing free radicals from damaging nucleotides. Ginger contains high levels of antioxidants, making it beneficial for overall health. However, ginger has a short shelf life, and its traditional preparation methods are less preferred by many people. Therefore, ginger is now available in the form of instant drink powders, which can be prepared like tea or coffee. This study is a descriptive study using the hedonic test method. Thirty students were selected as panelists. The panelists evaluated two types of ginger drinks made with different sweeteners: sugar and a combination of sugar and palm sugar (sugar-palm sugar). The parameters assessed in this study were color, aroma, taste, and sweetness level. The results of the hedonic test showed that the ginger drink sweetened with the sugar-palm sugar combination had the highest preference percentages across all parameters: color, aroma, taste, and sweetness level. For color, the "like" preference level achieved a percentage of 40%. For aroma, the "really like" preference level reached 43.33%. Taste received a "really like" preference level of 53.33%, and sweetness achieved a "like" preference level of 36.67%. In conclusion, the panelists preferred the ginger drink sweetened with the sugar-palm sugar combination over the drink sweetened with just sugar. This preference is attributed to the addition of palm sugar, which balances the ginger's strong flavor while retaining its distinct taste. Furthermore, the combination of ginger and palm sugar produces a harmonious blend of color, aroma, taste, and sweetness that complements both ingredients.
The Effect of Seed Priming Using Giberellic Acid (GA3) on Growth of Groundnut (Arachis hypogaea L.) and Lurik Groundnut (Arachis hypogaea L. var. Lurik) Tamonob, Arshinto; Solichatun, Solichatun; Suratman, Suratman
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.v12i2.13774

Abstract

Seed priming is a technique for treating seeds before germination to improve the quality of the plants produced. Seed priming can be done by soaking the seeds in various solutions, including hormone solutions. Groundnut (Arachis hypogaea L.) is the second most important commodity in Indonesia for both common and striated groundnut. This research aims to determine the effect of seed priming using the hormone gibberellic acid on the vegetative growth of peanuts and striated peanuts. This research used a completely randomized design with a factorial pattern; the first factor is variation in the type of peanut; The second factor is the variation in gibberellic acid concentration for seed priming, namely 0 ppm (only distilled water), 100 ppm, 200 ppm, 300 ppm and 400 ppm and without priming. Each treatment was carried out in 3 repetitions. The variables observed were plant wet weight, plant dry weight, chlorophyll content, number of leaves, shoot:root ratio. Quantitative data were analyzed using Analysis of Variance (ANOVA) and DMRT with a confidence level of 95%. The results of the research showed that seed priming treatment using the gibberellic acid hormone had a significant effect on the wet weight and dry weight of the plants; shoot:root ratio, and chlorophyll content of peanut and striated peanut leaves. Seed priming treatment using the hormone gibberellic acid had no significant effect on the number of leaves of ordinary peanuts and striated peanuts.
Uji Efektivitas Sediaan Emulgel Ekstrak Etanol 70% Daun Murbei (Morus alba L.) Sebagai Antiinflamasi Rizaldi, Gusti; Wahyunita, Sari Wahyunita; Rahmiati, Nur
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.v12i2.13744

Abstract

Non-steroidal anti-inflammatory drugs (NSAIDs) commonly used have associated side effects, necessitating the search for safer alternatives based on natural ingredients. This study aims to evaluate the effectiveness of a 70% ethanol extract emulgel of mulberry leaves (Morus alba L.) as an anti-inflammatory agent. The methodology employed is an experimental study involving the formulation of emulgel, which was tested on Wistar rats. The extraction process utilized maceration of mulberry leaves with 70% ethanol, yielding a concentrated extract that was then formulated into an emulgel. Anti-inflammatory activity was assessed using carrageenan induction and measuring edema volume in the test animals. The results indicated that the mulberry leaf extract emulgel exhibited significant anti-inflammatory activity, with a p-value of <0.023, demonstrating a meaningful difference compared to the positive control. The formula with a concentration of 0.32% showed the best efficacy at 180 minutes. The conclusion of this study highlights the potential of the 70% ethanol extract emulgel of mulberry leaves as a safe and effective alternative for anti-inflammatory therapy, recommending further safety testing to ensure its safe use in the community.
Evaluasi Kemampuan Literasi Biodiversitas Mahasiswa Fajri, Siti Rabiatul; Citrawathi, Desak Made; Adnyana, Putu Budi; Arnyana, Ida Bagus Putu
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.v12i2.14208

Abstract

Indonesia is one of the countries with the highest biodiversity in the world. However, this high diversity requires individual awareness and responsibility to maintain and utilize it sustainably. Therefore, biodiversity literacy is an important element, especially for students as prospective future generations who will play a role in natural resource management in the future. This study aims to evaluate the level of biodiversity literacy of students of the Biology study program at the University of Education Mandalika, by assessing six dimensions of biodiversity literacy: Conservation and Importance of Biodiversity (CIB), Ethics and Biodiversity (EB), Sustainability and Biodiversity (SB), Taking Action to Protect Biodiversity (TAPB), Biodiversity and Utility (BU), and Conservation and Importance of Species (CIS).  The method used was quantitative descriptive, involving 50 students as respondents. The instrument used consisted of 27 items that were analyzed using One Way ANOVA to determine the average score and significant differences based on gender and student scores. The results showed that the average score of biodiversity literacy obtained a score of 2.08 with a less significant category (Low Biodiversity Literacy). Most of the indicators are at an average value below 2.50, only a small number of indicators have an average value above 2.50. In the CIB dimension, only 3 indicators have an average value of > 2.50 out of 5 indicators. In the TAPB dimension, only 1 indicator has an average > 2.50. While in other dimensions, the average value < 2.50. In addition, there was no significant difference in student scores based on gender. Thus, student biodiversity literacy still needs to be improved, especially in the aspects of real action and individual responsibility.
Phenotype Variation, Correlation and Regression Analysis of Quantitative Traits in Adult Pasundan Bulls at Various Ages Wibowo, Heru Budi; Mudawamah, Mudawamah; Sumartono, Sumartono
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.v12i2.13044

Abstract

Pasundan cattle are local cattle as strategic germplasm to be developed.  This study aimed to determine the diversity of Pasundan cattle in quantitative traits of chest circumference and body weight at various ages as a basis for information in future breeding development.  The research method was a case study with purposive sampling whose criteria were bulls aged 25 months and above. The material used was 19 Pasundan bulls kept at the UPTD BPPIBT Pasundan Cattle Ciamis, West Java Province. Variable Observed quantitative traits included chest circumference or CC and body weight or BW at various ages. Data analysis using descriptive statistics, chi-square test, correlation and regression analysis.  The research results show that (1) the variation in the age of the sample cattle used with an average value of 30.11 ± 3.63 months, with a VP value of 13.21 months and a median of 29 months, mode 33 months; (2) the Chi-square test, the results of CC and BW research compared to the Pasundan cattle standard were not significantly different (P>0.05) and very significantly different (P<0.01); (3) phenotype variation (VP) in chest circumference (CC) and body weight (BW) was higher compared to the Pasundan bull standard with the following values: 70.14 vs 138.30 cm and 810.64 vs 1,156 kg; (4) the correlation and regression coefficients on the relationship between age, chest circumference, and body weight were quite strong (r>0.5) with a significantly different regression test (P<0.05).
Development of Modified E-Modules Augmented Reality Android Based to Improve Student’s Interest and Learning Outcomes Rani, Fadwa; Susilowati, Endang; Yamtinah, Sri
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.v12i2.13966

Abstract

Scientific and technical advancements have intensified efforts to incorporate technological results into the teaching and learning process. As a result, new advancements in learning systems are required, such as the creation of Augmented Reality-based e-modules. In colloidal material research, Augmented Reality on an Android tablet is employed in modified Chemistry E-modules to increase student engagement and learning outcomes. The objectives of this research are to create e-modules, evaluate their use, and analyze the impact of chemistry e-modules on learning outcomes and student participation. The feasibility of e-modules is determined through the validation test of 9 validators consisting of media experts, linguists and teaching practitioners. While the e-module was tested on 3 scales, namely limited scale, medium scale and wide scale on respondents, namely grade XI students at SMA Islam Terpadu Baitul Muslim, SMA Teladan, SMA TQ Al Mannan in East Lampung Regency. Based on the research, the academic results and attention spans of grade XI pupils are impacted by chemistry e-modules with customized Augmented Reality on colloid material, A 0.005 significance level has been set. Furthermore, the N-gain value indicates a difference in the attention and learning outcomes of grade XI pupils before and after utilizing the program. Students who do not study the material through e-modules have N-gain values in the low category, while students who study the material through e-modules have N-gain in the high category. In the validation test by validators, it is known that the Aiken coefficient value (V-count) is greater than 0.8 with a very good Likert scale interpretation.
Prevalence and Morphological Identification of Eimeria Species on Bali Cattle in Sumbawa District, West Nusa Tenggara Pradana, Munawer; Kurniawan, Muhammad Ahdi’; Berliana, Erprinanda Galuh; ‘Ilmi, Laily Ulya Nurul; Haddar, Mariyam Al; Dharmawibawa, Iwan Doddy
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.v12i2.13315

Abstract

This study aims to determine the prevalence and morphological identification of Eimeria spp. from Bali cattle feces on traditional farms in Sumbawa District. A total of 300 samples were identified and 238 samples were positive, resulting in a prevalence of Eimeria spp. of 79.33%. Based on age category, the highest prevalence of Eimeria spp. was found in cattle aged 6 months-2 years (88.76%; 79/89), followed by cattle aged  <6 months (88%; 88/100) and the lowest prevalence in cattle aged >2 years (63.96%; 71/111). Female Bali cattle had the highest prevalence of Eimeria spp. (80.55%; 145/180) than male Bali cattle (77.50%; 93/120). Based on livestock systems, the highest prevalence of Eimeria spp. was found in semi-intensive (89.15%; 74/83), then extensive (80.76%; 105/130) and the lowest in intensive (67.81%; 59/87). Six different Eimeria species were identified: E. bovis (33.19%), E. auburnensis (21.42%), E. zuernii (15.96%), E. alabamensis (12.18%), E. ellipsoidalis (10.50%), and E. canadensis (6.72%). Preventing and controlling coccidiosis infection in cattle can be done with good hygiene management.

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