Biodegradation of oxytetracycline and enrofloxacin by autochthonous microbial communities from estuarine sediments

Malek, Harrabi; Alexandrino, Diogo A. M.; Aloulou, Fatma; Elleuch, Boubaker; Liu, Bei; Jia, Zhongjun; Almeida, C. Marisa R.; Mucha, Ana P.; Carvalho, Maria de Fátima

doi:10.1016/j.scitotenv.2018.08.193

Cited by 72 publications

(18 citation statements)

References 71 publications

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“…Abiotic control experiments in the absence of strain 3+I showed 54% removal of OTC, which was significantly less when compared to the experiments in the presence of strain 3+I (85%). As reported by Shi et al [ 55 ] and Harrabi et al [ 54 ], hydrolysis may have contributed to OTC degradation in an aqueous environment, but combined degradation due to hydrolysis and microbial degradation resulted in an increase in OTC removal overall. According to Harrabi et al [ 54 ], microbial communities isolated from estuarine sediments are capable of removing OTC despite the influence of abiotic factors.…”

Section: Discussionmentioning

confidence: 84%

“…As reported by Shi et al [ 55 ] and Harrabi et al [ 54 ], hydrolysis may have contributed to OTC degradation in an aqueous environment, but combined degradation due to hydrolysis and microbial degradation resulted in an increase in OTC removal overall. According to Harrabi et al [ 54 ], microbial communities isolated from estuarine sediments are capable of removing OTC despite the influence of abiotic factors. Enhanced degradation by strain 3+I as indicated by the reduction in half-life (2.68 days) in experiments in the presence of the strain when compared to abiotic control experiments without the strain (6.03 days) suggests that microbial degradation outstands abiotic degradation.…”

Section: Discussionmentioning

confidence: 84%

“…Several species of bacteria have been reported to be tolerant to OTC— Acinetobacter , Stenotrophomonas maltophilia, and Aeromonas veronii [ 40 ], and flavobacterium strains [ 37 ] which showed 50% removal of OTC. Harrabi et al [ 54 ] have reported the potential of microbial communities derived from the estuarine regions to degrade OTC. Shi et al [ 55 ] reported OTC degradation by A .…”

Section: Discussionmentioning

confidence: 99%

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Oxytetracycline Degrading Potential of Lysinibacillus sp. Strain 3+I Isolated from Poultry Manure

Sudha

Parthasarathi

Prabha

et al. 2022

Evidence-Based Complementary and Alternative Medicine

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Oxytetracycline (OTC) which is a broad-spectrum veterinary tetracycline antibiotic is extensively used in poultry farms as a prophylactic, therapeutic, and growth stimulator. Upon administration, unmetabolized OTC is excreted from the animal body through droppings and accumulated in litter in the poultry industry. This study aimed at investigating the OTC degradation potential of an-OTC tolerant bacterial strain, isolated from poultry manure. The isolated strain’s morphology, biochemical properties, and 16S ribosomal RNA (rRNA) gene sequence confirmed that it belonged to the Lysinibacillus genus. To measure the residual OTC concentration, a high-performance liquid chromatography method was used. OTC degradation rates were 2.579 mg L−1d−1 with Lysinibacillus strain 3+I and 1.149 mg L−1d−1 without Lysinibacillus strain 3+I. In the presence of strain 3+I, the half-life significantly reduced to 2.68 days, compared to 6.03 days without strain 3+I. The strain demonstrated 85% removal with the OTC concentration of 10 μg/ml. The influence of pH, temperature, carbon sources, and nitrogen source, which influence degradation, were also investigated. The optimum condition favouring degradation was pH 6 at a temperature of 30°C. In addition, Lysinibacillus sp. strain 3+I’s ability to degrade OTC in poultry litter offers a promising approach to treat poultry manure and effluent containing OTC, preventing its contamination in the environment.

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Section: Discussionmentioning

confidence: 84%

Section: Discussionmentioning

confidence: 84%

Section: Discussionmentioning

confidence: 99%

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Oxytetracycline Degrading Potential of Lysinibacillus sp. Strain 3+I Isolated from Poultry Manure

Sudha

Parthasarathi

Prabha

et al. 2022

Evidence-Based Complementary and Alternative Medicine

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“…Overall, the effectiveness of these full-scale systems is equal to and even higher than the conventional wastewater treatment plant (WWTP) but at low cost [309,310]. Some of the removal processes that take place in these systems are: phytoremediation, sediment sorption (adsorption, absorption), microbial degradation (anoxic, anaerobic, and aerobic) located on sediment or associated to plants [311,312], and photodegradation [299]. The integration of microalgae-based biotechnologies (such as open algal ponds) and constructed wetlands could increase the efficiency of PPCPs removal systems (Figure 6), since microalgae can accumulate and degrade pollutants, produce oxygen through photosynthesis (a limiting factor in the degradation processes of CW), and the algal debris can be used as the organic substrate for microorganisms ( [238], Figure 6).…”

Section: Constructed Wetlandsmentioning

confidence: 99%

From Laboratory Tests to the Ecoremedial System: The Importance of Microorganisms in the Recovery of PPCPs-Disturbed Ecosystems

et al. 2020

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The presence of a wide variety of emerging pollutants in natural water resources is an important global water quality challenge. Pharmaceuticals and personal care products (PPCPs) are known as emerging contaminants, widely used by modern society. This objective ensures availability and sustainable management of water and sanitation for all, according to the 2030 Agenda. Wastewater treatment plants (WWTP) do not always mitigate the presence of these emerging contaminants in effluents discharged into the environment, although the removal efficiency of WWTP varies based on the techniques used. This main subject is framed within a broader environmental paradigm, such as the transition to a circular economy. The research and innovation within the WWTP will play a key role in improving the water resource management and its surrounding industrial and natural ecosystems. Even though bioremediation is a green technology, its integration into the bio-economy strategy, which improves the quality of the environment, is surprisingly rare if we compare to other corrective techniques (physical and chemical). This work carries out a bibliographic review, since the beginning of the 21st century, on the biological remediation of some PPCPs, focusing on organisms (or their by-products) used at the scale of laboratory or scale-up. PPCPs have been selected on the basics of their occurrence in water resources. The data reveal that, despite the advantages that are associated with bioremediation, it is not the first option in the case of the recovery of systems contaminated with PPCPs. The results also show that fungi and bacteria are the most frequently studied microorganisms, with the latter being more easily implanted in complex biotechnological systems (78% of bacterial manuscripts vs. 40% fungi). A total of 52 works has been published while using microalgae and only in 7% of them, these organisms were used on a large scale. Special emphasis is made on the advantages that are provided by biotechnological systems in series, as well as on the need for eco-toxicological control that is associated with any process of recovery of contaminated systems.

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“…Antibiotics present in the environment also affect natural microbial communities. A number of research studies have demonstrated that the presence of antibacterial pharmaceuticals influences the microbial growth, enzymatic activity, and biomass production, leading to the decrease in microbial diversity [8,9,10,11,12,13,14]. On the other hand, through being involved in the self-purification process of ecosystems and being able to decompose the xenobiotics, natural bacterial communities play a key role in the environmental fate of antibiotics [1,15].…”

Section: Introductionmentioning

confidence: 99%

Nitrofurantoin—Microbial Degradation and Interactions with Environmental Bacterial Strains

Pacholak

Smułek

Zgoła‐Grześkowiak

et al. 2019

IJERPH

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The continuous exposure of living organisms and microorganisms to antibiotics that have increasingly been found in various environmental compartments may be perilous. One group of antibacterial agents that have an environmental impact that has been very scarcely studied is nitrofuran derivatives. Their representative is nitrofurantoin (NFT)—a synthetic, broad-spectrum antibiotic that is often overdosed. The main aims of the study were to: (a) isolate and characterize new microbial strains that are able to grow in the presence of NFT, (b) investigate the ability of isolates to decompose NFT, and (c) study the impact of NFT on microbial cell properties. As a result, five microbial species were isolated. A 24-h contact of bacteria with NFT provoked modifications in microbial cell properties. The greatest differences were observed in Sphingobacterium thalpophilum P3d, in which a decrease in both total and inner membrane permeability (from 86.7% to 48.3% and from 0.49 to 0.42 µM min−1) as well as an increase in cell surface hydrophobicity (from 28.3% to 39.7%) were observed. Nitrofurantoin removal by selected microbial cultures ranged from 50% to 90% in 28 days, depending on the bacterial strain. Although the isolates were able to decompose the pharmaceutical, its presence significantly affected the bacterial cells. Hence, the environmental impact of NFT should be investigated to a greater extent.

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Biodegradation of oxytetracycline and enrofloxacin by autochthonous microbial communities from estuarine sediments

Cited by 72 publications

References 71 publications

Oxytetracycline Degrading Potential of Lysinibacillus sp. Strain 3+I Isolated from Poultry Manure

Oxytetracycline Degrading Potential of Lysinibacillus sp. Strain 3+I Isolated from Poultry Manure

From Laboratory Tests to the Ecoremedial System: The Importance of Microorganisms in the Recovery of PPCPs-Disturbed Ecosystems

Nitrofurantoin—Microbial Degradation and Interactions with Environmental Bacterial Strains

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