Ultrasound-assisted extraction of organic contaminants

Albero, Beatriz; Tadeo, José L.; Pérez, Rosa Ana

doi:10.1016/j.trac.2019.07.007

Cited by 89 publications

(37 citation statements)

References 65 publications

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“…UAE was selected because it provides an exhaustive extraction with a low consumption of solvents and short extraction time due to its increased mass transfer [25]. In this assay, 3 g of thawed lettuce were placed in a 30 mL polypropylene tube with a ceramic bead homogenizer before adding 6 mL of the extraction solvent.…”

Section: Resultsmentioning

confidence: 99%

Analysis of Multiclass Antibiotics in Lettuce by Liquid Chromatography–Tandem Mass Spectrometry to Monitor Their Plant Uptake

et al. 2019

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The main entry routes of antibiotics in the environment are the application of organic wastes to improve soil quality and the irrigation with recycled water. Once in the environment, antibiotics can be introduced in the food chain through their uptake by crops. This paper describes the development of an analytical method based on ultrasound-assisted extraction for the determination of seven antibiotics in lettuce. The developed method was applied to evaluate antibiotic uptake by lettuce grown in pots fertilized with composted poultry litter doped with a mixture of antibiotics to reach a final concentration of 2.5 µg/g in soil. Lettuce were harvested after 21, 36, and 55 days. Five of the seven studied antibiotics were found in all samples. The highest uptake was found for lincomycin (51 ng/g fresh weight) followed by sulfamethoxazole (44 ng/g fresh weight) and sulfamethazine (21 ng/g fresh weight) in lettuce harvested after 21 days. An important decrease of their levels was observed after 36 days, but these levels remained similar after 55 days. Although levels found in lettuce were low, the presence of antibiotics demonstrates the need for further assessing food safety risks related with the use of soil amendments or irrigation water contaminated with antibiotics.

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Section: Resultsmentioning

confidence: 99%

Analysis of Multiclass Antibiotics in Lettuce by Liquid Chromatography–Tandem Mass Spectrometry to Monitor Their Plant Uptake

et al. 2019

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“…For organic contamination analysis in solid aquatic samples (e.g., fish body, tissue, fish fillet, and fish oil), microwave-assisted extraction (MAE), conventional solvent microextraction, and ultrasound-assisted extraction (UAE) techniques have been largely developed and applied to extract the analytes [34,35]. In two most recent review articles, MAE and UAE techniques have been discussed for their working principle, efficiency, and applications for both 3 Research solid and liquid sample extractions in food and environmental samples [36,37].…”

Section: Laboratory-based Techniques For Organic Contaminantmentioning

confidence: 99%

Sensors, Biosensors, and Analytical Technologies for Aquaculture Water Quality

Sutarlie

Loh

2020

Research

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In aquaculture industry, fish, shellfish, and aquatic plants are cultivated in fresh, salt, or brackish waters. The increasing demand of aquatic products has stimulated the rapid growth of aquaculture industries. How to effectively monitor and control water quality is one of the key concerns for aquaculture industry to ensure high productivity and high quality. There are four major categories of water quality concerns that affect aquaculture cultivations, namely, (1) physical parameters, e.g., pH, temperature, dissolved oxygen, and salinity, (2) organic contaminants, (3) biochemical hazards, e.g., cyanotoxins, and (4) biological contaminants, i.e., pathogens. While the physical parameters are affected by climate changes, the latter three are considered as environmental factors. In this review, we provide a comprehensive summary of sensors, biosensors, and analytical technologies available for monitoring aquaculture water quality. They include low-cost commercial sensors and sensor network setups for physical parameters. They also include chromatography, mass spectrometry, biochemistry, and molecular methods (e.g., immunoassays and polymerase chain reaction assays), culture-based method, and biophysical technologies (e.g., biosensors and nanosensors) for environmental contamination factors. According to the different levels of sophistication of various analytical techniques and the information they can provide (either fine fingerprint, highly accurate quantification, semiquantification, qualitative detection, or fast screening), we will comment on how they may be used as complementary tools, as well as their potential and gaps toward current demand of real-time, online, and/or onsite detection.

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“…Ultrasound-assisted extraction (UAE) is an efficient environmentally friendly technique to extract organic contaminants. This method has a lower solvent volume requirement and shorter extraction time compared with classical extraction procedures [ 25 , 26 , 27 ]. Currently, it is widely used to extract persistent organic pollutants [ 28 ], fluoroquinolones [ 29 ] and polychlorinated biphenyls [ 30 ] in animal tissues.…”

Section: Introductionmentioning

confidence: 99%

Simultaneous Quantification of Aflatoxin B1, T-2 Toxin, Ochratoxin A and Deoxynivalenol in Dried Seafood Products by LC-MS/MS

Deng

Wang

Deng

et al. 2020

Toxins

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Mycotoxins are secondary metabolites produced by fungi. These contaminate dried seafoods during processing and storage and represent a potential health hazard for consumers. A sensitive, selective and accurate liquid chromatography/tandem mass spectrometry (LC-MS/MS) method was established for simultaneous quantification of four common mycotoxins (aflatoxin B1 (AFB1), T-2 toxin (T-2), ochratoxin A (OTA) and deoxynivalenol (DON)) in dried shrimp, dried fish and dried mussel products. Mycotoxins were extracted from dried seafood samples by acetonitrile/water (85/15, v/v), subjected to ultrasound for 60 min at 20 °C and cleaned up by defatting with n-hexane. The sample matrix affected the linearity of detection (R2 ≥ 0.9974). The limit of detection (LOD) and limit of quantification (LOQ) in dried seafood products varied from 0.1 to 2.0 µg·kg−1 and 0.3 to 5.0 µg·kg−1, respectively. The method was validated by spiking samples with specific mycotoxin levels, and the recoveries, intra-relative standard deviation (RSDs) and inter-RSDs ranged between 72.2–98.4%, 2.8–10.6%, and 5.5–15.4%, respectively. This method was used to analyze 40 dried seafood products purchased from the Zhanjiang seafood market. Results of this product sampling showed that while no DON was detected, AFB1, T-2 and OTA were detected in 30.8%, 17.5% and 33.3% of the samples, respectively. AFB1, T-2 and OTA concentrations varied at 0.58–0.89, 0.55–1.34 and 0.36–1.51 µg·kg−1, respectively. Relatively high frequency of contamination and the presence of AFB1, OTA and T-2 residues indicate the need to monitor mycotoxins in dried seafood products.

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Ultrasound-assisted extraction of organic contaminants

Cited by 89 publications

References 65 publications

Analysis of Multiclass Antibiotics in Lettuce by Liquid Chromatography–Tandem Mass Spectrometry to Monitor Their Plant Uptake

Analysis of Multiclass Antibiotics in Lettuce by Liquid Chromatography–Tandem Mass Spectrometry to Monitor Their Plant Uptake

Sensors, Biosensors, and Analytical Technologies for Aquaculture Water Quality

Simultaneous Quantification of Aflatoxin B1, T-2 Toxin, Ochratoxin A and Deoxynivalenol in Dried Seafood Products by LC-MS/MS

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