Article Per Year (5 Year)
p-Index From 2021 - 2026
2.096
P-Index
This Author published in this journals
All Journal Erudio: Journal of Educational Innovation Alotrop Jurnal Pendidikan dan Ilmu Kimia Science and Physics Education Journal (SPEJ) Journal of Science Education Research PENDIPA Journal of Science Education BIOEDUSAINS: Jurnal Pendidikan Biologi dan Sains JURNAL PENDIDIKAN TAMBUSAI Jurnal Paedagogy IJORER : International Journal of Recent Educational Research al Kimiya : Jurnal Ilmu Kimia dan Terapan
M. Lutfi Firdaus
FKIP Universitas Bengkulu
Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Education Languange, Linguistic, Communication & Media Mathematics Social Sciences Other

Published : 25 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 25 Documents
Search

 1   2   3 
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
Co-Authors Aceng Wikrama Ruyani Ahmad Amin Angga Aprian Dinata Ariefa Primair Yani Budiyanto Budiyanto Dewi Handayani Diana Rakhmawaty Eddy Diya Novarina Edo Prasetia Edwin Saputra Efa Susanti Eko Swistoro Eko Swistoro Eko Swistoro Elvinawati Elvinawati Elvinawati Elvinawati Endang Suswati Endang Widi Winarni Endang Widi Winarni Euis Wikrama Nursa’adah Ghufira Ghufira Hadi Apriyonda Hayuni Retno Widarti Hendry Nordan Hermansyah Amir Khairul Hidayah Khanna Hadirama Marti Hitsmi Muchammad Farid Muzanip Alperi Nessi Meileza Nurhamidah Purwanti Widhy Hastuti Renaldi Adriansyah Rendy W. Wardana Rendy Wikrama Wardana Rima Mayesmy H. Rina Elvia Rince Anugrah Ilahi Riska Marwanti Rosane Medriati Salma Nur Zakiyyah Samitra, Dian Sasti Yuliafitri Septika Amalia Umaro Siti Zaya Aisyahlika Sumpono Sumpono Sura Menda Ginting Vazella Lavenia Lorenza Wangi Pusva K. Yeni Wahyuni Hartati Yestilia Anggraini Yuni Krisnawati Zico Fakhrur Rozi