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The Pengembangan E-Modul Sintesis Metal Organic Frameworks Cu-BDC Sebagai Adsorben Zat Warna Berbasis Problem Based Learning Untuk Meningkatkan Literasi Sains Mahasiswa Septika Amalia Umaro; Sura Menda Ginting; M. Lutfi Firdaus
PendIPA Journal of Science Education Vol 8 No 1 (2024): February
Publisher : UNIB Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33369/pendipa.8.1.108-113

Abstract

This research aimed to analyze the feasibility of an e-module with the topic of synthesis of Metal Organic Frameworks (MOFs) Cu-BDC as adsorbents for Congo red and Metanil yellow dyes, as well as to analyze the improvement of students' scientific literacy after the implementation of a Problem Based Learning-based e-module in the material chemistry course using a Telegram bot application. The research method used was research and development with the ADDIE model (Analysis, Design, Development, Implementation, and Evaluation). Data collection techniques included observation, tests, and questionnaires. The research instruments consisted of test sheets and questionnaires that have been validated by experts. Data analysis technique used was quantitative analysis. Based on the validation results of the e-module by content experts, a score of 93.17% was obtained, media experts 95.8%, test validation results 88.75%, and student response questionnaire validation results 92.6%. Overall, it can be concluded that the validation results of the e-module fall under the category of very feasible. The student response questionnaire towards the e-module resulted in a score of 95% with a category of very feasible. The n-gain result obtained after the application of the e-module in the material chemistry course is 0.67 with moderate criteria. In conclusion, the e-module with the topic of synthesis of MOFs Cu-BDC as adsorbents for Congo red and Metanil yellow dyes using Problem Based Learning model and Telegram bot application is highly suitable for use as an alternative teaching material in the material chemistry learning process and can improve students' scientific literacy.
Uji Aktivitas Antioksidan menggunakan Metode DPPH (2,2-Difenil-1-Pikrilhidrazil) Terhadap Ekstrak Daun Kunyit (Curcuma domestica) Khanna Hadirama; Rendy Wikrama Wardana; Euis Wikrama Nursa’adah; Aceng Wikrama Ruyani; M. Lutfi Firdaus
BIOEDUSAINS:Jurnal Pendidikan Biologi dan Sains Vol. 7 No. 2 (2024): Bioedusains: Jurnal Pendidikan Biologi dan Sains
Publisher : Institut Penelitian Matematika, Komputer, Keperawatan, Pendidikan dan Ekonomi (IPM2KPE)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31539/bioedusains.v7i2.11507

Abstract

This study aimed to identify the antioxidant content in turmeric leaf extract using the DPPH (2,2-diphenyl-1-picrylhydrazyl) method. The tested concentrations include 200 ppm, 150 ppm, 100 ppm, 50 ppm, 25 ppm, and 12.5 ppm, with absorbance measurements conducted using a UV-Vis Spectrophotometer. Data were analyzed by calculating the percentage of antioxidant activity based on the absorbance values of each concentration. Subsequently, the IC50 value was determined using a nonlinear regression equation, representing the relationship between the logarithm of concentration and the percentage of antioxidant activity (inhibition). The results of the study showed that the IC50 value of turmeric leaf extract was 61.88. The conclusion of this study indicates that turmeric leaf extract exhibits strong antioxidant activity. Keywords: Antioxidant, Turmeric Leaves, DPPH, IC50
Penerapan PhET Interactive Simulations untuk Meningkatkan Motivasi Belajar Mahasiswa Zico Fakhrur Rozi; M. Lutfi Firdaus; Endang Suswati
BIOEDUSAINS:Jurnal Pendidikan Biologi dan Sains Vol. 7 No. 2 (2024): Bioedusains: Jurnal Pendidikan Biologi dan Sains
Publisher : Institut Penelitian Matematika, Komputer, Keperawatan, Pendidikan dan Ekonomi (IPM2KPE)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31539/bioedusains.v7i2.14159

Abstract

This study aims to determine students' responses after implementing biology learning on the pH scale material using the Physics Education Technology (PhET) Simulation. The method used was a survey by distributing questionnaires to 15 Biology Education students at Universitas PGRI Silampari, Lubuklinggau City, South Sumatra Province, who had studied pH scale measurement material using the PhET Simulation. The questionnaire included several indicators: students' interest, benefits, display, and usability of PhET, divided into six statements. The results showed that 86.7% of students strongly agreed that learning using PhET was very interesting, 53.3% of students strongly agreed that PhET motivated and facilitated learning the pH scale, 60% of students strongly agreed that PhET made it easier to understand the pH scale material, and 53.3% of students strongly agreed that the PhET Simulation was easy to understand and its animation design and text met students' needs. In conclusion, the PhET Simulation is very engaging, motivates learning, facilitates material learning, eases material understanding, is easy to use, and its animation design and text align with students' needs. Keywords: PhET, Potential of Hydrogen, Student Response.
Analisis Kadar Bioetanol Berbahan Baku Limbah Ampas Tebu (Saccharum officinarum) Campuran Kulit Jagung (Zea mays) pada Konteks Teknologi Ramah Lingkungan Vazella Lavenia Lorenza; Rendy Wikrama Wardana; Ariefa Primair Yani; Purwanti Widhy Hastuti; M. Lutfi Firdaus
BIOEDUSAINS:Jurnal Pendidikan Biologi dan Sains Vol. 8 No. 2 (2025): BIOEDUSAINS:Jurnal Pendidikan Biologi dan Sains
Publisher : Institut Penelitian Matematika, Komputer, Keperawatan, Pendidikan dan Ekonomi (IPM2KPE)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31539/bioedusains.v8i2.14894

Abstract

This study purpose to see the levels of bioethanol produced by bagasse and corn husks with yeast, NPK and urea compositions. The method used in the study was an experiment with a predetermined ratio and fermentation time variables of 7, 14, and 21 days. Quantitative data were analyzed by calculating the average bioethanol levels and bioethanol volumes presented in table form. Meanwhile qualitative data were analyzed descriptively. The results showed that the highest bioethanol levels were in composition A (100% yeast) with a bioethanol content of 36,7% fermented for 21 days. The lowest bioethanol levels were in composition B (100% Urea) with a bioethanol content of 3,3% fermentation time of 7 days. The conclusion of this study shows that the volume of bioethanol has no effect on the levels of bioethanol produced, but this is not constant, because it can be influenced by other factors such as the duration of fermentation time, the materials used and the microbiological conditions during the fermentation process.  Keywords: Sugarcane Bagasse, Bioethanol, Corn Husk, Environmentally Friendly Technology.
Optimalisasi Fermentasi Bioetanol Campuran Batang Pisang (Musa paradisiaca) dan Bonggol Jagung (Zea mays) dengan Variasi Perlakuan dan Waktu Khairul Hidayah; Endang Widi Winarni; Rendy Wikrama Wardana; M. Lutfi Firdaus; Hayuni Retno Widarti
BIOEDUSAINS:Jurnal Pendidikan Biologi dan Sains Vol. 8 No. 5 (2025): Bioedusains: Jurnal Pendidikan Biologi dan Sains
Publisher : Institut Penelitian Matematika, Komputer, Keperawatan, Pendidikan dan Ekonomi (IPM2KPE)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31539/0n6tq123

Abstract

This study aims to determine the ethanol content from banana stem and corn cob residues with variations in treatment and fermentation time using a starter culture to accelerate the fermentation process. The method used was an experimental design with treatment variations and fermentation times of 9, 12, and 15 days. Quantitative data were analyzed by measuring the average ethanol content and volume produced for each treatment and fermentation time, then presented in graphical form. The results showed that the highest ethanol content was obtained in treatment A (100% yeast) with 20% ethanol after 15 days of fermentation. In conclusion, the longer the fermentation time, the higher the ethanol content; however, the effect of fermentation time was not always consistent because ethanol content is influenced by the materials used, fermentation duration, and the condition of microorganisms during the fermentation process. Keywords: Banana Stem Residues, Bioethanol, Corn Cob Residues, Environmentally Friendly Technology
Life cycle assessment dan keberlanjutan ekonomi-lingkungan produksi bioetanol dari kulit pisang kepok kuning: Systematic review Putri Ramadan Lazuardi; Aceng Ruyani; M. Lutfi Firdaus
Papanda Journal of Mathematics and Science Research Vol. 5 No. 1 (2026): Volume 5 Nomor 1 Maret 2026
Publisher : Papanda Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56916/pjmsr.v5i1.3092

Abstract

This study synthesizes recent findings on the environmental and economic sustainability of banana peel-based bioethanol production using a Life Cycle Assessment (LCA) approach. The utilization of yellow kepok banana peel waste offers significant opportunities to support clean energy transition and sustainable waste management in Indonesia. This research employs a Systematic Literature Review (SLR) method, analyzing 15 peer-reviewed articles indexed in Scopus and SINTA published between 2020 and 2025. The review follows the PRISMA 2020 framework with inclusion criteria focusing on quantitative LCA studies and economic-environmental sustainability aspects. Literature was retrieved from Scopus, ScienceDirect, MDPI, SpringerLink, and SINTA databases using the keywords “banana peel”, “bioethanol”, “LCA”, and “sustainability”. The results indicate that pretreatment and distillation stages are the main contributors to energy consumption and greenhouse gas emissions, accounting for approximately 55–65% of total Global Warming Potential (GWP). However, the implementation of coproduct systems, such as converting residues into biogas or organic fertilizer, can reduce GWP by up to 30–40%. From an economic perspective, banana peel-based bioethanol production is financially viable at a medium scale when supported by renewable energy integration and centralized waste management systems. This study highlights the critical role of LCA as an evaluation tool for waste-based energy development and underscores the need for national standards for LCA methodologies in the bioenergy sector. To the best of our knowledge, this is the first comprehensive SLR integrating LCA and economic-environmental sustainability analysis for yellow kepok banana peel bioethanol, providing relevant insights for renewable energy policy and circular waste management in Indonesia.
Pengaruh Pemberian Nanopartikel Kitosan - Ekstrak Batang J. multifida L terhadap Jumlah Eritrosit M. musculus yang Teriinfeksi P. berghei Arsela Eko Listiono; M. Lutfi Firdaus; Agus Sundaryono
BIOEDUSAINS:Jurnal Pendidikan Biologi dan Sains Vol. 8 No. 6 (2025): BIOEDUSAINS:Jurnal Pendidikan Biologi dan Sains
Publisher : Institut Penelitian Matematika, Komputer, Keperawatan, Pendidikan dan Ekonomi (IPM2KPE)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31539/be7vbx11

Abstract

This study aimed to determine the effect of administering chitosan nanoparticles loaded with Jatropha multifida L. stem extract on the erythrocyte count of Mus musculus infected with Plasmodium berghei as well as their characterization results. The method used was the preparation of chitosan nanoparticles loaded with J. multifida L. stem extract using the ionic gelation method. Characterization results using Particle Size Analysis (PSA) showed that the chitosan nanoparticles loaded with J. multifida L. stem extract had an average particle size of 567.12 nm with a polydispersity index (PDI) value of 0.11, while characterization using X-ray diffraction (XRD) showed the highest peak at a 2θ angle of 28.68°. The results indicated differences in the effects of varying concentrations of chitosan nanoparticles loaded with J. multifida L. stem extract on erythrocyte counts. The conclusion of this study is that the most effective dose of chitosan nanoparticles loaded with J. multifida L. stem extract was 0.028 g/kg body weight, followed by the administration of crude J. multifida L. stem extract at the same dose.   Keywords: Erythrocytes, Jatropha multifida L., Chitosan, Nanoparticles, Particle Size Analysis, Plasmodium berghei, X-ray Diffraction
Development of E-Module SETS for Global Warming Using Carbon Sequestration Potential of Coastal Vegetation at Pantai Panjang Bengkulu Melda Nuari Handini; Aceng Ruyani; Iwan Setiawan; M. Lutfi Firdaus; Henny Johan
IJIS Edu : Indonesian Journal of Integrated Science Education Vol 8, No 2 (2026): July
Publisher : UIN Fatmawati Sukarno Bengkulu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29300/ijisedu.v8i2.12037

Abstract

Increasing issues of global warming and coastal environmental degradation require science learning that is able to connect scientific concepts with real environmental conditions surrounding students. This study aimed to develop an E-Module based on Science, Environment, Technology, and Society (SETS) through the analysis of the carbon sequestration potential of Bengkulu coastal vegetation as a learning medium for global warming materials. This study employed a Research and Development (R&D) method using the ADDIE model, which consisted of analysis, design, development, implementation, and evaluation stages. The results showed that the SETS E-Module achieved a “Very Valid” category with a total score of 93.18%. Teacher responses obtained a total score of 77,88% with the category of “Good Category”, while student responses reached 88,12% indicating that the E-Module was feasible for use in science learning. The developed E-Module was able to connect scientific concepts with real environmental conditions through the context of Bengkulu coastal vegetation, thereby supporting more contextual and meaningful learning.
DETEKSI KANDUNGAN LOGAM BERAT KADMIUM (Cd) PADA RUMPUT LAUT MENGGUNAKAN TEKNIK CITRA DIGITAL Hizkia Mahezra Agustin; Euis Nursa’adah; M. Lutfi Firdaus
EDUPROXIMA : Jurnal Ilmiah Pendidikan IPA Vol 8, No 2 (2026)
Publisher : Universitas Bhinneka PGRI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29100/.v8i2.9300

Abstract

Pencemaran lingkungan masih menjadi masalah besar dalam kehidupan. Salah satu lingkungan yang tercemar adalah lautan. Pencemaran lautan mengakibatkan pencemaran logam berat pada biota laut. Salah satunya adalah rumput laut. Tujuan penelitian ini adalah untuk menentukan kadar kandungan logam kadmium yang terdapat pada rumput laut. Metode yang digunakan adalah pendeteksian dengan menggunakan teknik citra digital. Reagen/pengompleks yang digunakan untuk mendeteksi kadmium adalah alizarin red s. Dilakukan uji selektifitas dan sensitivas dahulu pada alizarin red s. Hasil yang didapatkan adalah kadar kandungan logam kadmium pada rumput laut sebesar 0.06 ppm. Hasil ini memiliki selisih 0.01 ppm pada peraturan BPOM yang menjelaskan kadar pencemaran kadmium pada rumput laut sebesar 0.05 ppm atau 0.05 mg/Kg.
Robotics Workshop to Increase Motivation and Science Literacy of SMP IT Khairu Ummah Rejang Lebong Students Afrizal Mayub; M. Lutfi Firdaus; Fahmizal Fahmizal; Aceng Ruyani; Lazfihma Lazfihma; Deshinta Arrova Dewi
Aktual: Jurnal Pengabdian Kepada Masyarakat Vol. 3 No. 1 (2025): Aktual: Jurnal Pengabdian Kepada Masyarakat January 2025
Publisher : CV Media Inti Teknologi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58723/aktual.v3i1.347

Abstract

This activity aims to Increase the Motivation and Science Literacy of SMP IT Khairu Ummah Rejang Lebong Students. This activity is one form of implementing the tridharma of higher education. One of the tri dharmas of higher education is community service, this service activity is an activity that every lecturer must carry out, therefore lecturers in the Master of Science program at Bengkulu University collaborated with IT SMP teacher Khairu Ummah Rejang Lebong Bengkulu on September 28, 2024, to carry out service activities at SMP IT Khairu Ummah Rejang Lebong. This collaboration takes the form of community service activities at SMP IT Khairu Ummah Rejang Lebong Bengkulu with the title "Robotics Workshop to Increase Motivation and Science Literacy of SMP IT Khairu Ummah Rejang Lebong Students". From these activities, it can be concluded that the teaching material delivered at the Robotics Workshop uses interactive multimedia which includes lectures, virtual demos, animations, visualizations, simulations and videos which have proven successful in motivating students in the motivated category with a score of 3.84 and increasing scientific literacy in the high category with a score of 3.93.