The behavior of tetracyclines and their degradation products during swine manure composting

Wu, Xiaofeng; Wei, Yuansong; Zheng, Jeffrey; Zhao, Xin; Zhong, Weike

doi:10.1016/j.biortech.2011.03.007

Cited by 204 publications

(93 citation statements)

References 33 publications

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“…The procedures for extraction of tetracyclines, quinolones, sulfonamides, and their degradation products in soils followed methods described by Wu et al (2011) with some modifications. LCeMS/MS was used to separate and detect the tetracyclines, sulfonamides, and quinolones following methods described by .…”

Section: Antibiotics Analysismentioning

confidence: 99%

Impact of reclaimed water irrigation on antibiotic resistance in public parks, Beijing, China

Wang

Qiao

et al. 2014

Environmental Pollution

144

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a b s t r a c tThe abundance and distribution of antibiotics and antibiotic resistance genes (ARGs) in soils from six parks using reclaimed water in Beijing, China, were characterized. Three classes of commonly used antibiotics (tetracycles, quinolones, and sulfonamides) were analyzed by liquid chromatography-tandem mass spectrometry (LC-MS/MS). The highest concentrations of tetracyclines and quinolones were 145.2 mg kg À1 and 79.2 mg kg À1 , respectively. Detected tetG, tetW, sulI, and sulII genes were quantified by quantitative PCR. ARGs exhibited various abundances for different park soils. The integrase gene (intI1) as an indicator of horizontal gene transfer potential was also detected in high abundance, and had significant positive correlation with tetG, sulI, and sulII genes, suggesting that intI1 may be involved in ARGs dissemination. Both sulII and intI1 clones had high homology with some classes of pathogenic bacteria, such as Klebsiella oxytoca, Acinetobacter baumannii, Shigella flexneri, which could trigger potential public health concern.

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Section: Antibiotics Analysismentioning

confidence: 99%

Impact of reclaimed water irrigation on antibiotic resistance in public parks, Beijing, China

Wang

Qiao

et al. 2014

Environmental Pollution

144

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“…In the case of the TCs, the residual level is generally lower than that in the manure samples, however not significantly (p<0.05) different among the three types of composts. This implied that TCs might be degraded substantially during the composting process (Kim et al 2012;Selvam et al 2012;Wu et al 2011). Abiotic transformation of the antibiotics might contribute a great to the degradation during composting.…”

Section: Veterinary Antibiotic Residues In Compostsmentioning

confidence: 99%

Residues and potential ecological risks of veterinary antibiotics in manures and composts associated with protected vegetable farming

Zhang

Luo

et al. 2014

Environ Sci Pollut Res

107

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Veterinary antibiotics (VAs) are emerging contaminants and enter into soil principally by agricultural application of organic fertilizer. A total of 33 solid animal manures and 17 compost samples from protected vegetable farms in nine areas of China were analyzed for the antibiotic classes of tetracyclines, fluoroquinolones, sulfonamides, and macrolides (17 substances in total). Oxytetracycline was found as a dominant compound in the samples, and its highest concentration reached 416.8 mg kg −1 in a chicken manure sample from Shouguang, Shandong Province. Among the samples, animal manures (especially pig manure) contained higher VA residues than composts. However, fluoroquinolones exhibited higher persistence in the compost samples than other antibiotic classes. This is particularly the case in the rice husk compost, which contained the highest level of ofloxacin and ciprofloxacin (1334.5 and 1717.4 μg kg −1 on average, respectively). The veterinary antibiotic profile in the risk husk compost had a good relationship with that in the corresponding manures. The refined commercial compost had the lowest VA residues among the compost samples in general. This implied that composting process might be important to reduce the antibiotic residue. High residue of antibiotics in soil was assumed to be a hazard to ecosystem. This is especially noticeable under current application rates (150 t ha) in protected vegetable farming because over half of the samples exhibited a risk quotient (RQ) >1 for one or more antibiotics.

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“…Anhydrotetracyclines were not detected except that EACTC was found in rather limited concentration in Putian compost. Wu et al (2011) also discovered none of the 4-epianhydrotetracyclines of the three parent tetracyclines during composting and the slight alkaline condition was thought to be the reason since anhydrotetracyclines could only be formed under strongly acidic conditions. ICTC was also found in compost samples from Jiaxing and Putian and a similar result has been reported (Arikan et al, 2009).…”

Section: Occurrence Of Tetracyclines In Manure-based Compostmentioning

confidence: 99%

Fate of tetracyclines in swine manure of three selected swine farms in China

Qiao

Chen²,

et al. 2012

Journal of Environmental Sciences

113

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Veterinary antibiotics can enter the environment due to the common practice of land application of manure from treated animals. The environmental fate of tetracyclines in swine manure after composting and field application remains largely unknown. This study analyzed the concentrations of tetracyclines in manure, manure-based compost and compost amended soil in selected swine farms from Beijing, Jiaxing and Putian, China to determine the dilution effects of antibiotics when released into the soil environment. The results demonstrate that residues of antibiotics were detected in all samples and chlortetracycline as well as its degradation products should be regarded critically concerning their potential ecotoxicity. Application of manure-based compost to soil could reduce the possible risk posed by antibiotic contamination, but the trigger value of 100 μg/kg was still exceeded in soil samples (776.1 μg/kg dw) from Putian City after application of compost. Field studies such as the present one can help to improve the routine administration of antibiotic-containing composted manure.

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The behavior of tetracyclines and their degradation products during swine manure composting

Cited by 204 publications

References 33 publications

Impact of reclaimed water irrigation on antibiotic resistance in public parks, Beijing, China

Impact of reclaimed water irrigation on antibiotic resistance in public parks, Beijing, China

Residues and potential ecological risks of veterinary antibiotics in manures and composts associated with protected vegetable farming

Fate of tetracyclines in swine manure of three selected swine farms in China

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