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All Journal Jurnal Pendidikan Biologi Indonesia Life Science
Walandipa, Ghani
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Agriculture, Biological Sciences & Forestry

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Comparison of the Rate and Level of Biodegradation of Leaf Waste by Lignocellulolytic Molds from Universitas Negeri Semarang Campus Walandipa, Ghani; Mustikaningtyas, Dewi; Widiatningrum, Talitha; Dewi, Pramesti
Life Science Vol. 14 No. 2 (2025): November 2025
Publisher : Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/unnesjlifesci.v14.i2.25828

Abstract

Biodegradation is a physical decomposition of the substrate caused by the activity of microorganisms by producing products that have benefits for humans. Lignocellulose degrading fungi are microorganisms that play a role in the process of decomposing organic waste. The biodegradation rate of each type of lignocellulose degrading mold is different. The purpose of this research is to comprehensively analyze and compare the rate and level of biodegradation of leaf waste in lignocellulolytic molds isolated from the campus environment of Universitas Negeri Semarang, as well as to identify and evaluate the type of lignocellulolytic mold that shows the highest efficiency in the rate and level of biodegradation of leaf waste. The method used in this research is quantitative method, by measuring the mass ratio and pH of leaf waste media before inoculation and after inoculation. The results of this study are the rate of leaf waste biodegradation based on the ratio of leaf waste mass by Trichoderma koningiopsis mold isolate of 0.015 grams/day, while by Trichoderma erinaceum mold isolate of 0.002 grams/day. Then the rate of leaf waste biodegradation based on the pH change value of leaf waste by Trichoderma koningiopsis mold isolate is higher with a pH change value of 0.3 when compared to the Trichoderma erinaceum mold isolate with a pH change value of 0.1. The superior performance of Trichoderma koningiopsis highlights its potential application in optimizing organic waste decomposition systems and provides a scientific basis for selecting lignocellulolytic fungi in sustainable waste management programs.
Conceptual development of nature of science in biology education: A hybrid bibliometric and SLR analysis Walandipa, Ghani; Khaerini, Hafizah; Suyanto, Slamet
JPBI (Jurnal Pendidikan Biologi Indonesia) Vol. 12 No. 1 (2026): MARCH
Publisher : University of Muhammadiyah Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22219/jpbi.v12i1.42984

Abstract

Background: The Nature of Science (NOS) is a central concept in science and biology education because it helps students understand how scientific knowledge is developed and supports scientific literacy. However, many NOS studies focus primarily on empirical research trends without integrating conceptual and philosophical perspectives. Objectives: This study aims to analyze the conceptual development of NOS in biology education through an integrated research approach. Methods: A hybrid approach combining bibliometric analysis and systematic literature review (SLR) was employed. Bibliometric data were retrieved from the Scopus database covering publications from 2000–2025 (cut-off: 8 November 2025). From an initial dataset of 35 articles, 11 studies were selected based on predefined inclusion and exclusion criteria. Results: The results show a significant increase in NOS research since 2010. Key themes include evolution, scientific literacy, epistemology, and textbook representation, while argumentation, intelligent design, epistemic practices, and Two-Eyed Seeing perspectives emerge as developing topics. The SLR findings indicate that NOS is understood as a multidimensional concept involving epistemological, pedagogical, and socio-cultural dimensions. Conclusion: This study highlights the importance of integrating philosophical perspectives and authentic representations of scientific practice to strengthen scientific literacy in biology education
Co-Authors Dewi Mustikaningtyas Khaerini, Hafizah Pramesti Dewi Slamet Suyanto Talitha Widiatningrum