Removal of Imidacloprid from Water by Microalgae Nannochloropsis sp. and Its Determination by a Validated RP-HPLC Method

Encarnação, Telma; Santos, Daniel; Ferreira, Simone C. R.; Valente, Artur J.M.; Pereira, Jorge C.; Campos, Maria Graça; Pais, Alberto

doi:10.1007/s00128-021-03228-1

Cited by 24 publications

(11 citation statements)

References 46 publications

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“…Meanwhile, studies have shown that the removal of organic and inorganic pollutants by algae can be analyzed from the cell, organelle, and gene levels 18,19 and it was also found that IMI could be internalized in algae cells. 51 Due to the high hydrophilicity (log Kow = 0.57) and the acid dissociation constant (pKa) of IMI (pKa 1 = 1.56, pKa 2 = 11.12) (details were shown in Supporting Information, Text S7), IMI would be stated in zwitterionic form in the AWG (pH shown in Fig. 2(d), 1.56 < pH < 11.12), so electrostatic neutralization hardly played an important role under this experimental condition.…”

Section: Discussionmentioning

confidence: 99%

“…Research showed that the triplet state extracellular organic matters of Chlorella Vulgaris have a 93% indirect contribution rate to photodegrade chlortetracycline (CTC) 53 and that intracellular organic matter from Chlorella vulgaris enhances the photodegradation of acetaminophen. 54 Neonicotinoid, which means new nicotine-like insecticides, 29 is a systemic contact insecticide that affects the central nervous system of insects. 55 Therefore, it is important to explore its degradation products.…”

Section: Discussionmentioning

confidence: 99%

“…25,26 Biodegradation of IMI mainly focuses on the degradation and transformation of microorganisms in environments, such as the removal of IMI by bacteria and algae in soil and water bodies. [27][28][29] At present, most of the research on removing pesticides and other emerging pollutants by microalgae was carried in the culture medium environment and the synthetic wastewater environment, mainly focusing on the degradation pathway and mechanism. The study on the removal of emerging pollutants in municipal wastewater is still limited.…”

Section: Introductionmentioning

confidence: 99%

“…Chemical degradation of IMI mainly includes photocatalytic degradation, 22 advanced oxidative degradation, 23,24 and electrochemical degradation 25,26 . Biodegradation of IMI mainly focuses on the degradation and transformation of microorganisms in environments, such as the removal of IMI by bacteria and algae in soil and water bodies 27‐29 …”

Section: Introductionmentioning

confidence: 99%

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Efficient removal of Imidacloprid and nutrients by microalgae‐bacteria consortium in municipal wastewater: effects, mechanism, and importance of light

Cheng

Deng

Wang

et al. 2022

J of Chemical Tech & Biotech

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BACKGROUND With the rapid development of society, a large amount of wastewater and pesticides enter the water bodies globally, posing a threat to both the environment and the health of people and other living things. In this paper, an algal strain Scenedesmus sp. was isolated from a municipal wastewater treatment plant (WWTP); its interaction effect with wastewater bacteria on the removal of IMI and conventional pollutants in municipal wastewater was evaluated. RESULTS In this study, an algae‐bacteria system was constructed with municipal wastewater, with the aim of exploring the removal effects and mechanisms of the consortium system on Imidacloprid (IMI, 20 mg L−1 and 60 mg L−1) and conventional nutrients from municipal wastewater. The results showed that no IMI was removed under 20 μmol m−2 s−1. However, under 60 μmol m−2 s−1, more than 90% of IMI was removed in the algae‐wastewater group (AWG) with Scenedesmus sp.; this value is much higher than the 50.4% (20 mg L−1) and 36.1% (60 mg L−1) achieved by the wastewater group (WG) without Scenedesmus sp. Meanwhile, the removal efficiency of nitrogen was 82.3% (20 mg L−1) and 71.9% (60 mg L−1) in AWG, both of which are higher than the 73.4% and 59.1% in WG, respectively. Moreover, Scenedesmus sp. TXH has a strong resistance to IMI and 4 degradation products (including IMI‐urea, 4(5)‐hydroxy‐IMI, Nitrosimine, and a substance with m/z of 176) were found in AWG. CONCLUSION Using consortium to treat municipal wastewater containing IMI is an effective and safe way. © 2022 Society of Chemical Industry (SCI).

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Efficient removal of Imidacloprid and nutrients by microalgae‐bacteria consortium in municipal wastewater: effects, mechanism, and importance of light

Cheng

Deng

Wang

et al. 2022

J of Chemical Tech & Biotech

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“…The bacterium removed imidacloprid in surface water without co-substrate supplementation and retained imidacloprid-degrading activity after 30 days. Recently, in another study, Encarnação et al (2021) isolated a microalgae Nannochloropsis sp. from wastewater and investigated it for the bioremediation of imidacloprid with the initial concentration of 9.59 μg/mL.…”

Section: Potential Microorganisms For Neonicotinoid Degradation and Their Metabolic Pathwaysmentioning

confidence: 99%

Microbial Technologies Employed for Biodegradation of Neonicotinoids in the Agroecosystem

et al. 2021

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Neonicotinoids are synthetic pesticides widely used for the control of various pests in agriculture throughout the world. They mainly attack the nicotinic acetylcholine receptors, generate nervous stimulation, receptor clot, paralysis and finally cause death. They are low volatile, highly soluble and have a long half-life in soil and water. Due to their extensive use, the environmental residues have immensely increased in the last two decades and caused many hazardous effects on non-target organisms, including humans. Hence, for the protection of the environment and diversity of living organism’s the degradation of neonicotinoids has received widespread attention. Compared to the other methods, biological methods are considered cost-effective, eco-friendly and most efficient. In particular, the use of microbial species makes the degradation of xenobiotics more accessible fast and active due to their smaller size. Since this degradation also converts xenobiotics into less toxic substances, the various metabolic pathways for the microbial degradation of neonicotinoids have been systematically discussed. Additionally, different enzymes, genes, plasmids and proteins are also investigated here. At last, this review highlights the implementation of innovative tools, databases, multi-omics strategies and immobilization techniques of microbial cells to detect and degrade neonicotinoids in the environment.

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Effects of the Pesticide Carbofuran on Two Species of Chlorophyceae (Desmodesmus communis and Pseudopediastrum boryanum) and Their Pesticide Bioremediation Ability

da Luz,

Guimarães,

Castro

et al. 2024

Enviro Toxic and Chemistry

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Carbofuran is one of the most toxic broad‐spectrum pesticides. We evaluated the effects of carbofuran on two species of microalgae, Pseudopediastrum boryanum, and Desmodesmus communis, through measurements of cell viability, biomass, the chlorophyll content, and the production of reactive oxygen species (ROS). The ability of these algae to remove carbofuran dissolved in the media was also determined. For the evaluations, both microalgae species were exposed to carbofuran (FURADAN 350 SC®) at concentrations of 100, 1,000, and 10,000 µg L‐1 for 7 days. Algae cell viability and chlorophyll‐a concentration were not affected by the presence of carbofuran. Both species grew when exposed to the pesticide; however, the microalgae D. communis grew less than its respective control when exposed to the highest concentration (10,000 µg L‐1 of carbofuran), indicating an adverse effect of the pesticide on this species. A significant increase in ROS production was observed in D. communis and P. boryanum when exposed to the highest concentration tested. The microalgae P. boryanum completely removed carbofuran in the media within 2 days, regardless of the concentration, whereas D. communis achieved the same result only after 5 days of exposure. Growth inhibition was observed only until the disappearance of carbofuran from the media. This study suggests the use of microalgae, mainly P. boryanum, as potential tools for the remediation of environments contaminated by carbofuran due to their resistance to the insecticide and their ability to remove it rapidly from water.

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Removal of Imidacloprid from Water by Microalgae Nannochloropsis sp. and Its Determination by a Validated RP-HPLC Method

Cited by 24 publications

References 46 publications

Efficient removal of Imidacloprid and nutrients by microalgae‐bacteria consortium in municipal wastewater: effects, mechanism, and importance of light

Efficient removal of Imidacloprid and nutrients by microalgae‐bacteria consortium in municipal wastewater: effects, mechanism, and importance of light

Microbial Technologies Employed for Biodegradation of Neonicotinoids in the Agroecosystem

Effects of the Pesticide Carbofuran on Two Species of Chlorophyceae (Desmodesmus communis and Pseudopediastrum boryanum) and Their Pesticide Bioremediation Ability

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