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All Journal Biotik Venn: Journal of Sustainable Innovation on Education, Mathematics and Natural Sciences
Isnada Isnada, Isnada
Program Studi Pendidikan Biologi Fakultas Tarbiyah dan Keguruan UIN Alauddin Makassar
Agriculture, Biological Sciences & Forestry Education Environmental Science Mathematics Physics Other

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PENGARUH MODEL PEMBELAJARAN REINFORCEMENT UNTUK MENINGKATKAN HASIL BELAJAR BIOLOGI SISWA SMPN 1 BONGGAKARADENG TANA TORAJA PADA MATERI BERBAGAI SISTEM DALAM KEHIDUPAN MANUSIA Isnada, Isnada
Jurnal Biotek Vol 3, No 2 (2015): Jurnal Biotek
Publisher : Fakultas Tarbiyah dan Keguruan UIN Alauddin Makassar

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Abstract

This study aimed to determine students learning outcome biology using model Reinforcement. This study is classified as a type of quasi-experimental study aimed to look at the effect of reinforcement in improving student learning outcomes in the subject of Biology subjects understand the different systems in the human life. Quasi-experimental research methods using models contol nonequivalent group design. Based on the results of research in the field, shows that the administration of reinforcement (reinforcement) can significantly improve student learning outcomes of the acquisition value of the average (mean) of 47.17 pretest and post-test gain of 86.33.
Optimalisasi Bioremediasi Minyak Bumi Menggunakan Pseudomonas Aeruginosa Hasil Rekayasa Genetik Isnada, Isnada; Hala, Yusmina
Venn: Journal of Sustainable Innovation on Education, Mathematics and Natural Sciences Vol. 5 No. 2 (2026): Biology, Physics, Chemistry, and other Basic Sciences
Publisher : Pusat Studi Bahasa dan Publikasi Ilmiah

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.53696/venn.v5i2.392

Abstract

Petroleum contamination stands as one of the most serious environmental challenges, particularly affecting soil and aquatic ecosystems impacted by oil spills, pipeline leaks, and industrial activities. Pseudomonas aeruginosa is recognized as an effective biodegradative bacterium due to its natural ability to produce rhamnolipid biosurfactants and express oxidative enzymes such as alkane monooxygenase (AlkB). In the modern era of biotechnology, the genetic engineering of key genes, including alkB, rhlAB, and the transcriptional regulator LcaR, has opened up opportunities for a significant increase in hydrocarbon degradation. This study conducts a narrative systematic review of Scopus literature to identify the bioremediation mechanisms employed by P. aeruginosa and the contribution of genetic engineering toward enhancing hydrocarbon degradation efficiency. The analysis indicates that the bioremediation stages encompass chemotaxis, biosurfactant production, primary oxidation, $\beta$-oxidation, biofilm formation, and quorum sensing based molecular regulation. Genetic modifications are proven to enhance the rate of alkane oxidation, strengthen rhamnolipid production, and accelerate the activation of degradation pathways. These findings affirm that engineered P. aeruginosa-based strains hold significant potential for application in bioremediation scenarios in Indonesia, especially in regions with extreme conditions such as high salinity, fluctuating pH, or high oil concentrations. The results of this review provide a scientific foundation for the development of engineered microbial bioformulations as a sustainable solution for petroleum contamination management.
Co-Authors Hala, Yusmina