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| Abstract |
The Sentiong River, located in Indonesia, has been polluted by various organic compounds originating from household and small-scale industries. Sentiong River water has a pungent odor and blackish col...or. The study aimed to determine the feasibility of five white-rot fungi species to degrade the organic pollutant compounds in the Sentiong River water hence avoiding the production of a pungent odor and blackish sediment. White rot fungi are well known for their ability to degrade or mineralize a wide range of organic pollutants. The study was started by a screening of potential fungi isolates to obtain the best ligninolytic fungi. A compatibility test was performed to verify the interspecies interaction between the isolates as a consortium. The biodegradation of organic compounds in river water was performed in two scenarios, biodegradation by a single culture using the best ligninolytic fungi isolate and by a consortium of five fungal isolates. The parameters observed include total carbon, ligninolytic enzymes activity (lignin peroxidase, mangan peroxidase, and laccase), and profiling the reduction of organic compounds analyzed by gas chromatography-mass spectrometry (GC-MS). The screening results showed that all five fungal isolates showed ligninolytic activity and Pycnoporus sanguineus IN004 has the best activity compared to the others whose averaged ligninase activity of 55.86 U/mL. Our study revealed that the fungal consortium degraded recalcitrant organic compounds more rapidly than a single fungal isolate The fungal consortium is able to remove about 63.46% of total dissolved carbon in 14 days of incubation, while the single isolate Pycnoporus sanguineus IN004 only has 42.33% of total dissolved carbon. However, at the final incubation period (21 days), both treatments yielded the quite similar results. Fungal ligninolytic enzymes (lignin peroxidase, mangan peroxidase, and laccase) play a role in the recalcitrant organic pollutant degradation process that was proved by the increase of ligninolytic enzymes activity along the treatments. This study revealed that this fungal consortium was able to act in synergism toward organic pollutant biodegradation in river water and was preferable to reduce recalcitrant substances in polluted river water.show more
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Export Mendeley
p2092-2104