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All Journal Jurnal Teknologi Dan Industri Pangan Bioma : Berkala Ilmiah Biologi Jurnal Akademika Biologi Biotropika Jurnal Biologi Universitas Andalas Biosaintifika: Journal of Biology & Biology Education Journal of Applied Food Technology Berkala Bioteknologi Advance Sustainable Science, Engineering and Technology (ASSET)
Arina Tri Lunggani
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Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Control & Systems Engineering Education Electrical & Electronics Engineering Energy Immunology & microbiology Industrial & Manufacturing Engineering Materials Science & Nanotechnology Other

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Journal : Biotropika

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Exploration of Copper and Lead Resistant Bacteria from Sediments of Kali Baru Estuary Purnomo, Eko; Kusumaningrum, Hermin Pancasakti; Budiharjo, Anto; Lunggani, Arina Tri; Az-Zahra, Salwa Zubaidah; Wardaja, Bodhicitta; Maimunah, Siti; Dinalhaq, Putri Cahya
Biotropika: Journal of Tropical Biology Vol. 14 No. 1 (2026)
Publisher : Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.biotropika.2026.014.01.05

Abstract

Heavy metal contamination, particularly by copper (Cu) and lead (Pb), in aquatic ecosystems poses a significant threat to ecological balance, aquatic organisms, microbial diversity and human health. The Kali Baru Estuary in Semarang, Indonesia, has been reported as a heavily polluted area with Cu and Pb concentrations far exceeding environmental safety thresholds, highlighting the urgent need for sustainable remediation strategies. This study aimed to isolate and characterise bacterial strains resistant to Cu and Pb from sediment samples collected from the Kali Baru Estuary in Semarang as potential bioremediation agents. Bacterial isolation was performed using a serial dilution technique up to 10?², in triplicate, spread onto Marine Agar medium, and incubated at 37°C for 24 h. The obtained isolates were purified and characterised based on their macroscopic and microscopic morphological features. Resistance profiling of the isolates was assessed by exposing them to Cu and Pb at concentrations of 100, 200, and 300 mg/L. A total of 32 bacterial isolates were successfully obtained. Among these, two isolates demonstrated resistance to Cu, and 14 isolates exhibited resistance to Pb at the highest concentration tested (300 mg/L). These metal-resistant bacterial isolates exhibit substantial promise for bioremediation applications aimed at remediating Cu and Pb-contaminated aquatic environments.
Co-Authors Aninditia Sabdaningsih Anto Budiharjo Az-Zahra, Salwa Zubaidah Budi Raharjo Budihardjo, Kadarwati Cahyaningrum, Emi CATUR RIANI Choirunnisaa, Nadia Maharani Jasmine Dani Ika Purwaningsih Dewantoro, Giwang Dian Prambodo, Ashar Kurnia Diani Kurniawati Dinalhaq, Putri Cahya Dion, Romario Dyah Wulandari Edwin Setiawan Eko Purnomo Endang Kusdiyantini Endang Kusdiyantini Enny Fachriyah Farikha, Siti Lutfiatul Hanifa, Yumna Rahmadias Hapzi Ali Hermin Pancasakti Kusumaningrum Indahsari, Silvana Nurulfauziyyah Khabib Khasan Alfaridhi, Khabib Khasan Khodijah Baharun Mahardhika, Wahyu Aji Mahardika, Wahyu Aji MG Isworo Rukmi Muhammad Amal Nurhakim, Muhammad Amal Nur Jannah, Siti Purwantisari, Susianna Qoys Naufal, Mochammad Fa’iq Raden Mohamad Herdian Bhakti Ramadhany, Warih Sari, Rachel Dewita Sitepu, Harum Siti Maimunah Siti Nur Jannah Soni Nugraha Anwar Sri Pujiyanto Susiana Purwantisari Syawal Nurangga Kodhatin Utomo, Adi Budi Wardaja, Bodhicitta Whinarsih, Whinarsih Wijanarka Wijanarka Wijanarka, W