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All Journal International Journal of Applied Power Engineering (IJAPE) Jurnal Pengajaran MIPA Jurnal Pendidikan IPA Indonesia Biotropika Jurnal Akuntabilitas Manajemen Pendidikan WARTA EduChemia: Jurnal Kimia dan Pendidikan Jurnal Tadris Kimiya Jurnal Zarah Jurnal Pendidikan Biologi Science and Technology Indonesia SPEKTRA: Jurnal Kajian Pendidikan Sains Jurnal Penelitian Pendidikan IPA (JPPIPA) Orbital: Jurnal Pendidikan Kimia BIOEDUSCIENCE Jurnal Ilmu Nutrisi dan Teknologi Pakan PENDIPA Journal of Science Education THABIEA (JOURNAL OF NATURAL SCIENCE TEACHING) JURNAL ILMIAH PETERNAKAN TERPADU BIOEDUSAINS: Jurnal Pendidikan Biologi dan Sains CARADDE: Jurnal Pengabdian Kepada Masyarakat Jurnal Pendidikan Matematika (JUDIKA EDUCATION) Riau Journal of Empowerment Sainmatika: Jurnal Ilmiah Matematika dan Ilmu Pengetahuan Alam Jurnal Biosilampari: Jurnal Biologi JPBIO (Jurnal Pendidikan Biologi) Jurnal Biotek JURNAL PENDIDIKAN MIPA Abdimas Universal Jurnal Biogenerasi Dharma Raflesia : Jurnal Ilmiah Pengembangan dan Penerapan IPTEKS Jurnal Inovasi Pembelajaran Kimia (Journal Of Innovation in Chemistry Education) Eduproxima : Jurnal Ilmiah Pendidikan IPA Agrinimal Jurnal Ilmu Ternak dan Tanaman Hydrogen: Jurnal Kependidikan Kimia Bioscientist : Jurnal Ilmiah Biologi Prima Abdika: Jurnal Pengabdian Masyarakat Jurnal Inovasi Penelitian dan Pengabdian Masyarakat Jurnal Pijar MIPA DIKSAINS : Jurnal Ilmiah Pendidikan Sains Al Jahiz: Journal of Biology Education Research Andromeda: Jurnal Pengabdian Masyarakat Rafflesia Jurnal Biosilampari: Jurnal Biologi IJIS Edu : Indonesian Journal of Integrated Science Education
Nursaadah, Euis
Universitas Bengkulu
Agriculture, Biological Sciences & Forestry Arts Humanities Astronomy Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Decision Sciences, Operations Research & Management Earth & Planetary Sciences Economics, Econometrics & Finance Education Electrical & Electronics Engineering Environmental Science Immunology & microbiology Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Materials Science & Nanotechnology Mathematics Physics Social Sciences Other

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Efikasi Antibakteri; Staphylococ pengembangan e-modul mikrobiologi berbasis penelitian pemanfaatan kulit buah kabau sebagai antibakteri untuk meningkatkan keterampilan berpikir kritis mahasiswa Sitorus, Lizken; Sipriyadi; Nursa’adah, Euis
PendIPA Journal of Science Education Vol 9 No 3 (2025): October
Publisher : UNIB Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33369/pendipa.9.3.861-865

Abstract

The bark of the traditional plant, Archidendron bubalinum, known locally as kabau, exhibits promising qualities as a natural antibacterial agent. This research was conducted with two main objectives: (1) to evaluate the antibacterial efficacy of kabau fruit peel extract against two common pathogenic bacteria, Staphylococcus aureus and Escherichia coli, and (2) to design, validate, and assess the effectiveness of a research-based Microbiology E-Module in fostering students' critical analytical skills. The antibacterial capacity was tested using the paper disc diffusion method across a range of extract concentrations (5%, 10%, 20%, 40%, and 80%), using both pure water (aquades) and 2% dimethyl sulfoxide as carriers. Statistical analysis (one-way ANOVA, p = 0.020 < 0.05) indicated a notable difference in the zone of inhibition diameter across the various concentrations. The most potent antibacterial effect was observed at the 80% concentration with the aquades solvent, yielding inhibition zones of 3.97 mm against S. aureus and 8.42 mm against E. coli. These empirical results served as the core content for the innovative E-Module. The developed E-Module attained a high level of validity, achieving a CVR score of 1.00 from 5 expert validators, thus confirming its readiness for use. Subsequent evaluation during instructional application revealed a marked elevation in students' critical thinking abilities. Students in the Biology Department at FMIPA, Universitas Bengkulu, showed an initial mean pre-test score of 41.67, which surged to 88.00 in the post-test. This change resulted in an N-gain score of 0.79, positioning the improvement in the "high" category. Therefore, A. bubalinum extract is confirmed to hold antibacterial potential, and the E-Module is proven to be an effective educational tool for enhancing students' critical thinking competence.
Qualitative and Quantitative Detection of Borax in Food Using Butterfly Pea Flower Extract Fitriani, Detty; Karyadi, Bhakti; Nursa'adah, Euis
Al Jahiz Vol 6 No 2 (2025): Al-Jahiz: Journal of Biology Education Research, July-December 2025 (In Progress)
Publisher : Fakultas Tarbiyah dan Ilmu Keguruan UIN Jurai Siwo, Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32332/al-jahiz.v6i2.11116

Abstract

The detection of borax in food is of critical importance due to its toxic properties, which pose serious health risks, especially when consumed continuously, even in small amounts. Therefore, an environmentally friendly, accessible, and easy-to-use detection method is needed for broader application, particularly in routine food monitoring. This study introduces a novel quantitative detection approach using butterfly pea flower (Clitoria ternatea L.) extract as a natural indicator, combining visual colorimetry and UV-Vis spectrophotometry for dual-mode borax analysis. Unlike previous studies that focused solely on qualitative color observation, this research establishes a quantitative correlation between absorbance and borax concentration, supported by strong linearity (R² = 0.9942) and high sensitivity (LoD = 0.026 ppm; LoQ = 0.088 ppm). The butterfly pea extract, rich in anthocyanins, produced a distinct blue color that shifted to green upon interaction with borax, forming a specific butterfly pea–borax complex with a maximum wavelength (λmax) at 624 nm. Application to real meatball samples revealed borax contents of 0.528% and 0.4641% in two samples, respectively. The integration of butterfly pea extract with turmeric paper as a dual-confirmation system enhances analytical reliability while maintaining cost-effectiveness and environmental safety. This work contributes a validated, eco-friendly, and quantitative natural detection method that bridges the gap between laboratory precision and community-based food safety monitoring.
Study of dogania subplana aclimatization in the turtle learning center university of bengkulu Marliansa, Meiredo; Karyadi, Bhakti; Parlindungan, Deni; Ruyani, Aceng; Nursa'adah, Euis
JPBIO (Jurnal Pendidikan Biologi) Vol 10, No 2 (2025): November 2025
Publisher : STKIP Persada Khatulistiwa Sintang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31932/jpbio.v10i2.4953

Abstract

The forest softshell turtle (Dogania subplana) is a species increasingly threatened by habitat destruction and overexploitation. This study aims to identify the acclimatization process of D. subplana in an artificial environment, specifically, an aquarium at the Turtle Learning Center (TLC). The research was conducted over 30 days from July to August 2024. Observations were made on daily behavior, body temperature, and health condition, individual biometric measurements, and environmental (abiotic) parameters. The results showed that daily behaviors such as feeding, basking, and hiding occurred regularly, indicating the species' ability to adapt to a new environment. The turtles experienced an increase in body weight, while growth in carapace length and width was very slow. The body temperature of D. subplana varied in accordance with the surrounding environmental temperature, reflecting its dependence on ambient conditions. Some individuals experienced minor health issues, such as fungal infections, but the majority remained active and healthy. Environmental factors such as temperature, humidity, pH, dissolved oxygen, total dissolved solids, and light intensity were within ranges conducive to acclimatization. These findings suggest that the aquarium at the TLC is quite effective as an ex situ conservation facility in supporting the adaptation process of D. subplana  outside its natural habitat.
Reduction lead metal in process marinating local food fish pendap using lemon juice (citrus limon) Asti, Nora Ayudi; Johan, Henny; Parlindungan, Deni; Primairyani, Ariefa; Defianti, Aprina; Nursaadah, Euis
JPBIO (Jurnal Pendidikan Biologi) Vol 10, No 2 (2025): November 2025
Publisher : STKIP Persada Khatulistiwa Sintang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31932/jpbio.v10i2.5209

Abstract

Fish have the potential to be contaminated with heavy metals such as lead, which can originate from human activities, industry, and ports. The Bengkulu people have a traditional processing method that is believed to reduce heavy metal content in fish through the immersion of fish in Pendap dishes using water and lemon. This study aims to observe the reduction of heavy metal content in fish during the immersion process using water and lemon juice in Pendap dishes. The research was experimental with positive and negative results and analyzed using the SPSS ANOVA test to see significant differences between treatment groups. The fish used as samples included Tongkol Sarda orentalis, Kembung Rastrelliger kanagurta, Tuna Thunnus albacares, and Tenggiri Scomberomorus Lacepède. The parts of the fish that were analyzed included the muscles, liver, and gills. All samples were exposed to Pb(NO3)2 and divided into 3 treatment groups: 1 positive control, 2 precipitated with water, and 3 precipitated with lemon juice (Citrus limon). The samples were tested using the reagents NaOH, KI, NH4OH, and HCl. Based on the research results, it was found that the application of lemon juice produced significant results in reducing Pb levels, as indicated by the negative test results.
Co-Authors A. Mudzakir A. Setiawan Aceng Ruyani ACENG RUYANI Adi Putranto Afrizal Mayub Afrizal Mayub Agus Sudaryono Agustina, Resta Ahmad Aminudin Ahmad Mudzakir Alfia Novera Indah Esa Kasih Ananda, Resti Annisa Luthfiah Aprina Defianti ardana, Rendy Wikrama W Areski Febriani Ariefa Primair Yani Ariefa Primairyani Ariefa Primairyani Ariefa Primairyani, Ariefa Arsela Eko Listiono Asti, Nora Ayudi Athika Ulfah Putri Auriel Zahra Alisha Barke, H. D. Bhakti Karyadi Bhakti Karyadi BHAKTI KARYADI Budi Maryani Budiyanto Budiyanto Chairunisa, Aprilia Chandra, I Nyoman Defianti, Aprina Deka Agustina Deka Agustina Delima, Ega Marita Deni Parlindungan Detty Fitriani Devi Kurniawati Dewi Handayani Dewi, Ria Kemala Diah Suprihatin Diana R. Eddy Dinda Oktarina Ega Marita Delima Elsi Adelia Fitri Endang Widi Winarni Esterlin Fadhilah, Annisa Alya Fahmizal, F. Fahmizal, Fahmizal Fannyda, Raidatul Fenty Fitrian Sari Firdaus, Mochamad Lutfi Ghina Febrianti gumono Gusti, Widia Hadirama, Khanna Handini, Melda Nuari Harlita Henny Johan Henny Johan Henny Johan Herlina Apriska Imas Eva Wijayanti Indah Langitasari Indra Sakti Indra Sakti Intan Febrian Ira Maisarah Isriyanti Affifah, Isriyanti Iwan Setiawan Johan, H. Junaini, Junaini Karyadi , Bhakti Khairunnisa Khairunnisa Lazfihma, L Lazfihma, Lazfihma Lena Rahmidar Liliasari , Liliasari Liliasari Lilis Rusmiati, Lilis Lukmanul Hakim Lukmanul Hakim M. Lutfi Firdaus M. Lutfi Firdaus M. Lutfi Firdaus, M. Lutfi Marliansa, Meiredo Mayub, A. Mayub, Afrizal Mayub, Afrizal Mega Anggelena Mellyta Uliyandari Uliyandari Mochammad Lutfi Firdaus Mochammad Yusa, Mochammad Muhamad Diki Permana Muhammad Lutfi Firdaus Naftalia Artaria Hutabarat Nanda Cahaya Safitri Nensi Pitaloka Nina Gusti Nirwana Nirwana Nurul Husna Parlindungan , Deni Parlindungan, Deni Pasaribu, Mika Yanti Arita Pathonawiratama, Gustin Primair Yani, Ariefa Ratu Eva Febriani Rendy W Wardhana Rendy Wikrama Wardana Rendy Wikrama Wardana Rina Elvia Rita Sartika Rizka Fitria Ningrum Rizki M. Okumura Sagita, Fitria Santhy Wyantuti Sari, Ega Dwi Permata Sari, Fenty Fitrian Sari, Frisa Rahmah Septika Amalia Umaro Shabrina, Annida Nurul Sipriyadi Sitorus, Jernia Rulintan Sitorus, Lizken Sonia, Gina Susanti Sutarno Sutarno Sutarno Sutarno Sutarno Sutarno Sutarno Syafriadin, Syafryadin Tanda Nauli Sitorban Tita Sunggarani Tuherni, Erni Urip Santoso Urip Santoso Wainarisi, Esterlin Wardana, Rendy W. Wardana, Rendy Wikrama Wardaya, R. W. Wikrama Wardana, Rendy Wiwit, Wiwit Yeni Wahyuni Hartati Yunita Yunita Yunita Yunita