Article Per Year (5 Year)
p-Index From 2021 - 2026
0.408
P-Index
This Author published in this journals
All Journal SEJ (Science Education Journal) Journal of Innovation in Applied Natural Science
M. Arya Nata Raharjo
Universitas Lampung
Aerospace Engineering Agriculture, Biological Sciences & Forestry Astronomy Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Education Energy Environmental Science Immunology & microbiology Materials Science & Nanotechnology Mathematics Physics

Published : 2 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 2 Documents
Search

 1 
Performance Analysis of Bio-batteries from Organic Waste for Alternative Electric Energy M. Arya Nata Raharjo; Amanda Fajar Arifia; Kartini Herlina
Journal of Innovation in Applied Natural Science Vol. 1 No. 1 (2025): Journal of Innovation in Applied Natural Science
Publisher : CV Media Inti Teknologi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58723/jinas.v1i1.16

Abstract

Background of study: Biobatteries are an innovative form of renewable energy technology that utilize organic materials to produce electricity through electrochemical reactions. Organic waste such as banana and pineapple peels contains natural electrolytes, making them potential sustainable and eco-friendly energy sources.Aims and scope of paper: This study aims to evaluate the performance of simple biobatteries using banana and pineapple peels as electrolyte materials. The research focuses on measuring voltage and current generation over seven days and assessing the stability and durability of each type of organic waste.Methods: Biobatteries were assembled using zinc (Zn) electrodes as the anode and carbon rods as the cathode. The peels were ground into a paste and used as the electrolyte. Daily measurements of voltage and current were taken for seven consecutive days to analyze performance trends.Result: Test results showed that both types of biobatteries were capable of producing sufficient voltage and current to power simple electronic devices such as small LEDs, wall clocks, and basic household appliances. However, biobattery performance decreased over time due to water evaporation, degradation of active compounds, and environmental influences such as temperature and humidity. Overall, banana peels performed more consistently than pineapple peels.Conclusion: This research demonstrates that organic waste can serve as a viable material for renewable energy generation. Biobatteries made from fruit peels not only help reduce waste but also have potential for educational use and community energy initiatives.
Banana Peel Bio-Battery Project-Based Electronic Worksheet: Enhancing Creative Thinking and Psychomotor Skills M. Arya Nata Raharjo; Kartini Herlina; B. Anggit Wicaksono
SEJ (Science Education Journal) Vol. 9 No. 2 (2025): November
Publisher : Universitas Muhammadiyah Sidoarjo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21070/sej.v9i2.1701

Abstract

This study aims to develop a project-based electronic student worksheet on banana peel bio-battery (hereinafter referred to as a project-based e-LKPD) to process banana peel waste into a simple bio-battery and to examine its validity, practicality, and effectiveness in improving students’ creative thinking and psychomotor skills. The product was developed using the 4D model (Define, Design, Develop, Disseminate) and grounded in Social Constructivism theory. It was tested on 15 Grade X high school students. Validation by material, media, and learning experts yielded an average score of 3.29 (on a 1–4 scale), indicating very good quality in terms of content and instructional design. Practicality was assessed through readability (97%), student questionnaire responses (95%), and teacher perceptions (88.09%), confirming that the project-based e-LKPD is easy to use, well-received, and allows students to complete project tasks with minimal difficulty. The effectiveness test showed an average score of 82.1 for creative thinking skills and 75.2 for psychomotor skills (both on a 0–100 scale), demonstrating significant improvement in both competencies. These results confirm that the project-based e-LKPD on banana peel bio-battery is valid, practical, and effective as an innovative learning tool to promote higher-order thinking, hands-on skills, environmental awareness, and understanding of renewable energy.
Co-Authors Amanda Fajar Arifia B. Anggit Wicaksono Herlina, Kartini