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All Journal Biocaster : Jurnal Kajian Biologi
Sri Purwati
Program Studi Pendidikan Biologi, Fakultas Keguruan dan Ilmu Pendidikan, Universitas Mulawarman, Jalan Muara Pahu, Samarinda, Kalimantan Timur 75119, Indonesia
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Education Immunology & microbiology

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Pengaruh Kombinasi Pupuk Organik Cair (POC) Mikroorganisme Lokal (MOL) Nasi Basi dengan Mulsa Organik (Daun Ketapang (Terminalia catappa L) dan Pelepah Pisang (Musa sp.)) terhadap Intensitas Serangan Serangga Hama pada Tanaman Bayam Kakap (Amaranthus hybridus) Desy Amanda Putri; Sonja Verra Tinneke Lumowa; Zenia Lutfi Kurniawati; Sri Purwati
Biocaster : Jurnal Kajian Biologi Vol. 6 No. 3 (2026): July
Publisher : Lembaga Pendidikan, Penelitian, dan Pengabdian Kamandanu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36312/biocaster.v6i3.1327

Abstract

This study aims to determine the combination of Liquid Organic Fertilizer (POC) Local Microorganisms (MOL) stale rice with organic mulch (ketapang leaves (Terminalia catappa L) and banana stems (Musa sp.)) on the intensity of insect pest attacks on snapper spinach (Amaranthus hybridus) plants. The type of research used is experimental research. In this study, the population used was snapper spinach (Amaranthus hybridus). Observation data were analyzed using one-way ANOVA and continued with the Least Significant Difference (LSD) test at the 5% level. The results showed that the combination of POC-MOL stale rice with organic mulch ketapang leaves and banana stems had a significant effect on the intensity of pest attacks (p < 0.05). The intensity of pest attacks tended to decrease over the observation period, namely 7.34% (12 HST), 9.28% (17 HST), 6.70% (22 HST), and 5.00% (27 HST). The T4 treatment was the most effective combination in suppressing pest infestation compared to other treatments. Based on these results, it can be concluded that the combination of spoiled rice POC-MOL with organic mulch has the potential to be an environmentally friendly pest control method for spinach cultivation.
Pengaruh Model Pembelajaran Guided Inquiry Berbantuan E-LKPD terhadap Kemampuan Berpikir Kritis dan Hasil Belajar Peserta Didik pada Materi Sistem Pernapasan di Kelas XI SMA Negeri 17 Samarinda Margaretha Dhea Kristiani; Sri Purwati; Herliani Herliani; Sonja Verra Tinneke Lumowa; Suparno Putera Makkadafi
Biocaster : Jurnal Kajian Biologi Vol. 6 No. 2 (2026): April
Publisher : Lembaga Pendidikan, Penelitian, dan Pengabdian Kamandanu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36312/biocaster.v6i2.1139

Abstract

This research is motivated by the lack of variety of learning models that cause students' critical thinking skills and learning outcomes to be still low. Therefore, the guided inquiry model assisted by E-LKPD is used as an alternative to facilitate the investigation process in a directed manner. This study aims to determine the effect of the guided inquiry learning model assisted by E-LKPD on students' critical thinking skills and learning outcomes in the respiratory system material of grade XI at SMA Negeri 17 Samarinda. This research is a quantitative study with a quasi-experimental type, using a non-equivalent control group design. Data collection techniques used pretest and posttest. The research sample consisted of 25 students per class. The experimental class used the guided inquiry model assisted by E-LKPD, while the control class used the Student Teams Achievement Divisions (STAD) model. The results of the t-test (independent sample t-test) showed sig. (2-tailed) of 0.000 < 0.05 and tcount > ttable, namely 4.448 ˃ 2.010 for critical thinking skills, and 4.903 ˃ 2.010 for student learning outcomes. The results of the study indicate that the guided inquiry learning model assisted by E-LKPD has a significant effect on improving critical thinking skills and student learning outcomes in the respiratory system material.
Pengaruh Media Interaktif Genially Berbantuan Model Discovery Learning terhadap Hasil Belajar Kognitif pada Materi Sistem Saraf Siswa Kelas XI SMA Negeri 5 Samarinda Dinda Davanya; Sri Purwati; Sonja V. T. Lumowa; Suparno Putera Makkadafi; Nelda Anasthasia Serena
Biocaster : Jurnal Kajian Biologi Vol. 6 No. 2 (2026): April
Publisher : Lembaga Pendidikan, Penelitian, dan Pengabdian Kamandanu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36312/biocaster.v6i2.1162

Abstract

This study aims to determine the effect of Genially interactive media supported by the discovery learning model on students' cognitive learning outcomes in the nervous system. This research is motivated by the low level of student active engagement in learning, necessitating innovative media and learning models that support meaningful conceptual understanding. This study used a quasi-experimental method. The subjects consisted of an experimental class using Genially media supported by the discovery learning model and a control class using the expository model. The study was conducted on eleventh-grade students of SMA Negeri 5 Samarinda on the nervous system. The research instrument was an essay test administered before and after the lesson. Data analysis included normality tests, homogeneity tests, hypothesis testing using the independent sample t-test, and N-gain calculations. The analysis results showed that the data were normally distributed and homogeneous. The hypothesis test revealed a significant difference between cognitive learning outcomes in the experimental and control classes. The improvement in cognitive learning outcomes in the experimental class was in the moderate category and higher than in the control class. Thus, Genially interactive media supported by the discovery learning model is effective in improving students' cognitive learning outcomes in the nervous system.
Pengaruh Model Pembelajaran Problem Based Learning Terintegrasi STEAM terhadap Literasi Sains Siswa pada Mata Pelajaran IPA Biologi Kelas VII di SMP Negeri 37 Samarinda Selvi Novita Sari; Vandalita Maria Magdalena Rambitan; Masitah Masitah; Sri Purwati; Suparno Putera Makkadafi
Biocaster : Jurnal Kajian Biologi Vol. 5 No. 4 (2025): October
Publisher : Lembaga Pendidikan, Penelitian, dan Pengabdian Kamandanu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36312/biocaster.v5i4.629

Abstract

The low science literacy of Indonesian students in the PISA study requires learning innovations that emphasize mastery of science concepts and their application in daily life. This study aims to determine the influence of the STEAM (Science, Technology, Engineering, Arts, and Mathematics) integrated Problem Based Learning (PBL) learning model on students' science literacy in the Biology Science subject grade VII at SMP Negeri 37 Samarinda. This study is a quasi experiment with a randomized pretest-posttest control group design. The research sample was obtained through a cluster random sampling technique consisting of class VII E as the experimental class and VII F as the control class. Data analysis includes normality test, homogeneity test, t-test, and N-Gain test. The results showed that the application of the STEAM integrated PBL model had a significant effect on improving students' science literacy as shown by the results of the t-test with a significance value of 0.000 (< 0.05). Thus, it can be concluded that the STEAM integrated PBL model is effective in improving students' science literacy. These findings indicate that the model could be an innovative and relevant alternative learning strategy to be implemented in secondary schools.
Identifikasi Serangga Hama pada Tanaman Cabai Rawit (Capsicum frutescens L.) pada Fase Generatif di Lahan Tani Air Terjun Pinang Seribu Kelurahan Sempaja Utara Samarinda Tanti Widiyanti; Sonja Verra Tinneke Lumowa; Masitah Masitah; Sri Purwati
Biocaster : Jurnal Kajian Biologi Vol. 5 No. 4 (2025): October
Publisher : Lembaga Pendidikan, Penelitian, dan Pengabdian Kamandanu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36312/biocaster.v5i4.634

Abstract

Cayenne pepper (Capsicum frutescens L.) is a horticultural commodity with high economic value that is widely consumed by the Indonesian people, but is susceptible to various types of pests, especially in the generative phase. This study aims to identify the type and dominance of insect pests that attack cayenne pepper plants in the generative phase in the farmland of Thousand Pinang Waterfall, North Sempaja Village, Samarinda. The research methods used include direct observation and insect collection using several types of traps (insect nets, light traps, and pitfall traps). Identification is carried out down to the family level with the help of a keybook of determination and morphological character of insects. The results of the study showed the existence of several insect pest families such as Tephritidae (fruit flies), Thripidae (thrips), Aphididae (aphids), and Bemisiidae (whiteflies) that were dominant during the generative phase of the plant. So it can be concluded that cayenne pepper plants in the generative phase in the farmland of the Thousand Pinang Waterfall, Samarinda, are vulnerable to being attacked by various types of insect pests. This is important to support a more precise and effective pest control strategy in the critical phase of the growth of cayenne pepper plants.
Pengembangan Media Pembelajaran Flashcard pada Mata Pelajaran Biologi Pokok Bahasan Bioteknologi Kelas X SMA Negeri 5 Kota Samarinda Apri Prananda Saputra; Akhmad Akhmad; Ruqoyyah Nasution; Sri Purwati; Suparno Putera Makkadafi; Nelda Anasthasia Serena
Biocaster : Jurnal Kajian Biologi Vol. 5 No. 4 (2025): October
Publisher : Lembaga Pendidikan, Penelitian, dan Pengabdian Kamandanu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36312/biocaster.v5i4.641

Abstract

The low activeness of students in learning biology is still a common problem found in various educational units, one of which is at SMA Negeri 5 Samarinda City. Biology learning at SMA Negeri 5 Kota Samarinda still faces obstacles in terms of student activeness. So that there needs to be a solution in the form of learning media that is attractive to students. This study aims to develop flashcard learning media in the form of educational cards in biology subjects on the subject of biotechnology and determine the feasibility of the media. The method used is research and development (Research and Development) with the ADDIE model which consists of 5 stages of research. Based on the results of the needs. analysis conducted at SMA Negeri 5 Kota Samarinda, teachers need flashcard learning media by 74%. Meanwhile, students need flashcard learning media by 81% of class X-3 and 82% of class X-7. This development research produces a product in the form of flashcard learning media in the form of a double-sided educational card that is feasible to use based on the assessment of: 1) media expert validators obtained a score of 78.33%; and 2) material expert validators obtained a score of 95.71%. Meanwhile, the response of students in the small-scale trial obtained a score of 80.39% and the response of students in the large-scale trial obtained a score of 81.11%. Meanwhile, the teacher's response obtained a score of 90%. So it can be concluded that the flashcard learning media developed is suitable for use and gets a positive response from students and teachers.
Perhitungan Angka Lempeng Total (ALT) dan Identifikasi Keberadaan Bakteri Escherichia coli pada Mie Basah yang Dijual di Pasar Segiri Kota Samarinda Khusnul Khatimah; Sri Purwati; Vandalita Maria Magdalena Rambitan; Nelda Anasthasia Serena
Biocaster : Jurnal Kajian Biologi Vol. 5 No. 4 (2025): October
Publisher : Lembaga Pendidikan, Penelitian, dan Pengabdian Kamandanu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36312/biocaster.v5i4.656

Abstract

Microbiological contamination is one of the factors that affect food safety, especially in wet noodles which have a high moisture content so they are easily damaged. This study aims to determine the number of Total Plate Numbers (ALT) and identify the presence of Escherichia coli in wet noodles sold at Segiri Market, Samarinda City. The research was carried out using a descriptive analytical method through laboratory testing of five wet noodle samples taken by purposive sampling. ALT testing uses the pour plate method on Plate Count Agar (PCA) media, while Escherichia coli testing is carried out by the Most Probable Number (MPN) method followed by confirmation on Eosin Methylene Blue Agar (EMBA) media. The results of the ALT test showed that two samples met the maximum limit of ALT according to SNI 2987:2015 (≤1.0 × 106 colonies/g), while three samples exceeded the threshold. The MPN test showed that four samples were below the maximum limit according to SNI 2987:2015 (≤10 APM/g) and one sample exceeded the threshold. The EMBA confirmation showed two positive samples of Escherichia coli. These results confirm the importance of applying hygienic practices in the processing, storage, and packaging to reduce the risk of microbiological contamination.
Pengaruh Model Pembelajaran Game Based Learning Berbantuan Media Lumio terhadap Motivasi dan Hasil Belajar Siswa Kelas VII SMP Negeri 9 Samarinda Angellya Kristin Sapan; Dora Dayu Rahma Turista; Elsje Theodora Maasawet; Sri Purwati; Suparno Putera Makkadafi; Vandalita Maria Magdalena Rambitan
Biocaster : Jurnal Kajian Biologi Vol. 5 No. 4 (2025): October
Publisher : Lembaga Pendidikan, Penelitian, dan Pengabdian Kamandanu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36312/biocaster.v5i4.676

Abstract

The Game Based Learning learning model is a learning approach that uses game elements in the learning process that involves students so that students interact more and play an active role during the learning process in the classroom. The use of the Game Based Learning Model is complemented by the use of Lumio as a learning medium. Lumio is a digital-based learning platform that combines slide presentations with activities such as quizzes and games, creating an active, fun and effective learning process in the modern technological age. The success of the learning process in the classroom is largely determined by appropriate teaching strategies and approaches. The purpose of this study is to determine the influence of the Game Based Learning model assisted by Lumio media on student motivation and learning outcomes in Science Class VII subjects of SMP Negeri 9 Samarinda. The method used in this study is a Quasi experiment which was designed using the Nonequivalent Control Group Design. The data analysis technique used was an independent sample test on the Mann Whitney non-paramteric test with the use of the Lumio-assisted Game Based Learning learning model on Motivation and The results showed that there was a significant difference between the experimental and control classes, with a sig value. 2-tailed 0.000 < 0.05, so from the Mann Whitney test it is known that there is an influence on the application of the Game Based Learning learning model assisted by Lumio media on student motivation and learning outcomes in science subjects grade VII SMP Negeri 9 Samarinda.
Pengaruh Model Pembelajaran Problem Based Learning (PBL) Berbasis RQA terhadap Kemampuan Berpikir Kritis dan Hasil Belajar Siswa dengan Menggunakan Aplikasi Wordwall di SMP Negeri 11 Samarinda Salsabila Desvika Nurfadhila; Elsje Theodora Maasawet; Sri Purwati; Akhmad Akhmad; Suparno Putera Makkadafi
Biocaster : Jurnal Kajian Biologi Vol. 5 No. 4 (2025): October
Publisher : Lembaga Pendidikan, Penelitian, dan Pengabdian Kamandanu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36312/biocaster.v5i4.689

Abstract

The results of observations conducted by researchers on February 2, 2025 with teachers at SMP Negeri 11 Samarinda show several problems, including the low critical thinking skills of students, learning outcomes that are not optimal, and the lack of use of digital media and innovative learning models. This condition causes students to have difficulty in understanding the learning material delivered by the teacher. This study aims to determine the influence of the Problem Based Learning (PBL) learning model based on Reading, Questioning, and Answering (RQA) on students' critical thinking skills and learning outcomes by using the Wordwall application at SMP Negeri 11 Samarinda. The research method used is a correlational method with a quantitative approach. The sampling technique was carried out by purposive sampling with classes VII-I and VII-H as research samples. Data analysis using t-test. After applying the RQA-based PBL learning model in class VII-H as an experimental class and given a critical thinking ability test and a learning outcome test, the average score of the experimental class was higher than the control class. The results of the data analysis showed that in the control class, the level of significance of critical thinking skills was 0.000 < 0.05 and learning outcomes were 0.002 < 0.05. This shows that the application of the RQA-based PBL learning model has a significant effect on improving students' critical thinking skills and learning outcomes on ecology and biodiversity materials at SMP Negeri 11 Samarinda. These findings prove that the application of the RQA-based PBL model is effective in improving students' critical thinking skills and learning outcomes.
Pengaruh Model Pembelajaran POE terhadap Sikap Ilmiah dan Keterampilan Proses Sains Siswa Kelas XI MA Negeri 1 Samarinda Oktavia Nuraisa; Sri Purwati; Masitah Masitah; Jailani Jailani; Zenia Lutfi Kurniawati
Biocaster : Jurnal Kajian Biologi Vol. 5 No. 4 (2025): October
Publisher : Lembaga Pendidikan, Penelitian, dan Pengabdian Kamandanu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36312/biocaster.v5i4.695

Abstract

The average biology learning outcomes of eleventh-grade students at MA Negeri 1 Samarinda are still below the Minimum Completion Criteria (KKM), while innovative learning models such as POE (Predict-Observe-Explain) have never been implemented. Biology learning has been mostly based on lectures, discussions, assignments, and practicums, while scientific attitude assessments are only taken from daily life and practicum activities. This condition requires the implementation of a model that can actively involve students to encourage scientific attitudes and science process skills (SPS). This study aims to determine the effect of the POE model on the scientific attitudes and SPS of eleventh-grade students on the sensory system material. The method used is a quasi-experimental design with a Nonequivalent Control Group Design, involving class XI-F as the experiment and XI-D as the control. The research instruments are scientific attitude questionnaires and SPS tests. The results of the analysis show significant differences between the experimental and control classes in scientific attitudes (p < 0.05) and SPS (p < 0.05 with the Mann Whitney U test). Improvements in scientific attitudes were demonstrated by an N-gain of 0.35 (moderate) in the experimental class and 0.19 (low) in the control class. Meanwhile, the N-gain of the Student-Based Learning (KPS) reached 0.60 (moderate) in the experimental class and 0.29 (low) in the control class. The conclusion of this study is that the POE model effectively improves the scientific attitudes and science process skills of eleventh-grade students at MA Negeri 1 Samarinda.
Co-Authors Akhmad Akhmad Angellya Kristin Sapan Apri Prananda Saputra Desy Amanda Putri Dinda Davanya Dora Dayu Rahma Turista Elsje Theodora Maasawet Herliani Herliani Jailani Jailani Khusnul Khatimah Margaretha Dhea Kristiani Masitah Masitah Nelda Anasthasia Serena Oktavia Nuraisa Roza Adnan Sofian Ruqoyyah Nasution Salsabila Desvika Nurfadhila Selvi Novita Sari Sonja V. T. Lumowa Sonja Verra Tinneke Lumowa Suparno Putera Makkadafi Tanti Widiyanti Vandalita Maria Magdalena Rambitan Zenia Lutfi Kurniawati