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<p>Seafood processing effluent can significantly impact aquatic ecosystems by introducing high levels of organic matter, nutrients, and contaminants, leading to oxygen depletion. Effective treatment is essential to mitigate these effects and promote healthier marine environments. This study investigated the bioremediation potential of a fungal strain isolated from effluent collected at a seafood processing facility in Kancheepuram, Tamil Nadu, India. Among the isolates, FSE-07 exhibited the highest bioremediation efficiency, achieving a 75.33% reduction in absorbance when 1% starch was used as a carbon source. Optimization under varying pH and temperature conditions revealed that the greatest reduction occurred at pH 7 and 35&#xa0;°C, resulting in significant decreases in BOD (66.67%), COD (52.60%), nitrogen (60.37%), nitrite (53.2%), and nitrate (42.86%). In addition, toxicity assessments revealed no chromosomal damage in the FSE-07 treated effluent. FT-IR analysis confirmed changes in the chemical composition of the effluent, indicating the degradation of hazardous compounds. Molecular characterization using 18S rRNA gene sequencing identified strain FSE-07 as <i>Aspergillus niger</i>. Post-treatment analysis of the effluent revealed notable improvements in physicochemical variables, including reductions in total dissolved solids, total solids, suspended solids, and oil and grease contents. These findings underscore the potential of <i>Aspergillus niger</i> FSE-07 as an effective and eco-friendly solution for treating seafood processing effluent, contributing to environmental sustainability.</p>

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Bioremediation of seafood processing effluent using Aspergillus niger FSE-07: a sustainable approach for aquatic ecosystem

  • 期刊论文

  • 发表日期：

    2026年3月9日

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  • Lokesh Elumalai,
  • Gini Swaminathan,
  • Sankarganesh Palaniyandi,
  • Ganesh Kumar Anbazhagan,
  • Meivelu Moovendhan,
  • Gopukumar Sivakumar Thangam,
  • Ranjithkumar Rajamani

摘要

Seafood processing effluent can significantly impact aquatic ecosystems by introducing high levels of organic matter, nutrients, and contaminants, leading to oxygen depletion. Effective treatment is essential to mitigate these effects and promote healthier marine environments. This study investigated the bioremediation potential of a fungal strain isolated from effluent collected at a seafood processing facility in Kancheepuram, Tamil Nadu, India. Among the isolates, FSE-07 exhibited the highest bioremediation efficiency, achieving a 75.33% reduction in absorbance when 1% starch was used as a carbon source. Optimization under varying pH and temperature conditions revealed that the greatest reduction occurred at pH 7 and 35 °C, resulting in significant decreases in BOD (66.67%), COD (52.60%), nitrogen (60.37%), nitrite (53.2%), and nitrate (42.86%). In addition, toxicity assessments revealed no chromosomal damage in the FSE-07 treated effluent. FT-IR analysis confirmed changes in the chemical composition of the effluent, indicating the degradation of hazardous compounds. Molecular characterization using 18S rRNA gene sequencing identified strain FSE-07 as Aspergillus niger. Post-treatment analysis of the effluent revealed notable improvements in physicochemical variables, including reductions in total dissolved solids, total solids, suspended solids, and oil and grease contents. These findings underscore the potential of Aspergillus niger FSE-07 as an effective and eco-friendly solution for treating seafood processing effluent, contributing to environmental sustainability.