Bioremediation by oil degrading marine bacteria: An overview of supplements and pathways in key processes

Ganesan, Mirunalini; Mani, Ravi; Sai, Sakthinarenderan; Govindaraju, K.; Awasthi, Mukesh Kumar; Rajagopal, Rajinikanth; Azelee, Nur Izyan Wan; Selvi, P.K.; Chang, Soon Woong; Ravindran, Balasubramani

doi:10.1016/j.chemosphere.2022.134956

Cited by 30 publications

(10 citation statements)

References 124 publications

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“…To understand the enormous remedial potential of microbial ecosystems, one needs only to look at the famous explosion of the Deepwater Horizon oil rig. Nature's response to this environmental disaster at the microbial level has been phenomenal and inspiring to the point that it has set off intensive activities in engineering more efficient microbial systems for the clean-up of oil spillages (Ganesan et al, 2022). Likewise, nature has presented its own solution to dealing with plastic in the form of plastispheres.…”

Section: Discussionmentioning

confidence: 99%

Engineering a microbiosphere to clean up the ocean – inspiration from the plastisphere

Alnahdi

Alali²,

Suwaidan³

et al. 2023

Front. Mar. Sci.

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Plastic is a ubiquitous material that has become an essential part of our lives. More than one hundred million tons of plastic has accumulated in the world’s oceans as a result of poor waste management. This plastic waste gradually fragments into smaller pieces known as microplastics and nanoplastics. These small plastic particles can cause significant damage to marine ecosystems, and negatively impact human health. According to a recent review of international patents, the majority of ocean-cleaning inventions are limited to microplastics larger than 20 μm. Furthermore, such technologies are ineffective for nanoplastics, which measure less than 1000 nm, or even fibrous plastics. Alternative solutions need to be considered for the large-scale in situ removal of microplastics and nanoplastics from the ocean. In this perspective, we present the concept of engineering a microbial ecosystem, which we term the microbiosphere. The concept is based on key observations that have been made for natural plastic-based ecosystems known as plastispheres. These observations relate to the solid support material, self-sustainability, attachment to plastic, degradation of plastic, and risk of pathogenicity. Inspiration can be taken from the plastisphere whereby a novel microbial ecosystem could be designed and engineered as a bioremediation tool to rid the ocean of micro- and nanoplastics. Such an engineered system could outcompete pathogens for marine plastic waste and potentially reduce the risk of infectious diseases.

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Section: Discussionmentioning

confidence: 99%

Engineering a microbiosphere to clean up the ocean – inspiration from the plastisphere

Alnahdi

Alali²,

Suwaidan³

et al. 2023

Front. Mar. Sci.

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“…Проведен анализ микробных сообществ донных отложений на уровне класса, семейства, порядка и рода (таблица). Известно, что представители родов Microbacterium, Flavobacterium и Lutibacter обладают ферментативной активностью в отношении углеводородов нефти и сложных ароматических соединений, встречаются в составе донных отложений пресноводных и морских водоемов [22,23]. Следует отметить, что наибольшая доля ASV рода Microbacterium представлена в микробном сообществе с наибольшим уровнем нефтезагрязнения (таблица).…”

Section: результаты и обсуждениеunclassified

Composition of Bacterial Communities in Oil-Contaminated Bottom Sediments of the Kamenka River

Егорова

Sannikov

Khotyanovskaya

et al. 2023

Vestn. Mosk. Univ. Ser. 16. Biol.

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The Kamenka River ows through the territory of the Kokuyskoye gas and oil eld located in the Perm Territory. Despite the absence of oil-producing facilities in the immediate vicinity of the river, oil hydrocarbons were found in the waters and bottom sediments at a concentration of 2445-25800 mg/kg. The composition of microbial communities of bottom sediments of the Kamenka River, located at the source and along the river, was studied. Using the methods of high-performance sequencing and bioinformatic data processing, it was established that the main share of microbial communities is represented by bacteria of the phylum Proteobacteria (16.7-30.3%), as well as the phyla Actinobacteriota, Bacteroidota, Bdellovibrionota, Campilobacterota, Chloro exi, Cyanobacteria, Deferribacterota, Desulfobacterota, Firmicutes, Gemmatimonadota, Methylomirabilota, Myxococcota, Nitrospirota, Patescibacteria, Planctomycetota, Spirochaetota, Synergistota, Thermotofota and Verrucomicrobiota. The values of the Shannon index for the studied communities are directly correlated with the concentration of petroleum hydrocarbons in bottom sediments. The phylum Proteobacteria in communities is represented by the classes Alphaproteobacteria and Gammaproteobacteria, among which representatives of the families Rhodobacteriaceae and Comamonadaceae dominate. When identifying to the genus, it was found that in the Comamonadaceae family, the main share is made up of bacteria of the genus Hydrogenophaga. It should be noted that bacteria of the genus Pseudomonas (class Gammaproteobacteria) were found only in the microbiocenosis of bottom sediments, characterized by the highest concentration of petroleum hydrocarbons.

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“…At the same time, the characteristic of PET is hydrophilic materials, which are advantageous for lowering start-up time, stabilizing biofilm growth, and speeding up microbial adhesion [21,22]. The various hydrophilicity characteristics of each type of polymer are caused by the polymer's functional groups, represented by methyl groups on hydrocarbon backbones [23]. Because of the hydrophilic characteristics of the polymer surface, bacterial attachment tends to happen more quickly on hydrophilic surfaces [24].…”

Section: Environmental Conditions and Biofilm Formationmentioning

confidence: 99%

The Use of Polymeric Materials of Polyethylene Terephthalate (PET) and Polypropylene (PP) as the media of Anaerobic-aerobic bioreactors in treating wastewater from the tofu industry

Mangarengi,

Abdullah,

Alam

2023

IOP Conf. Ser.: Earth Environ. Sci.

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Small-scale businesses often dominate the tofu sector in Makassar City, preventing any prior wastewater management. While tofu is typically produced on a household scale, the wastewater treatment process is limited due to the need for suitable technology and high prices. Therefore, it is necessary to conduct this research to obtain tofu wastewater results that meet environmental discharge standards and develop a straightforward and affordable waste treatment concept. A laboratory scale with an experimental method is used in this study, where the test parameters used were BOD, COD, and TSS using two types of biofilter media, namely mineral water bottle media made of PET plastic and plastic straw media made of PP plastic with variations in observation time of 24 hours for six days. The results presented that the efficiency of the average removal in plastic-media reactors with mineral water bottles reduced BOD by 88.30%, COD by 88.97%, and TSS by 79.13%. The straw-based plastic reactor reduced BOD by 86.74%, COD by 85.41%, and TSS by 67.03%. The effectiveness value obtained shows that biofilter media made from plastic mineral bottles (PET) produces better effectiveness in removing BOD, COD, and TSS than biofilter media made from plastic straws (PP).

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Bioremediation by oil degrading marine bacteria: An overview of supplements and pathways in key processes

Cited by 30 publications

References 124 publications

Engineering a microbiosphere to clean up the ocean – inspiration from the plastisphere

Engineering a microbiosphere to clean up the ocean – inspiration from the plastisphere

Composition of Bacterial Communities in Oil-Contaminated Bottom Sediments of the Kamenka River

The Use of Polymeric Materials of Polyethylene Terephthalate (PET) and Polypropylene (PP) as the media of Anaerobic-aerobic bioreactors in treating wastewater from the tofu industry

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