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Primary validation of Charm II tests for the detection of antimicrobial residues in a range of aquaculture fish.
BMC Chemistry ( IF 4.6 ) Pub Date : 2020-04-25 , DOI: 10.1186/s13065-020-00684-4
Aziz Kimera Mukota 1 , Melanie Flore Kamini Gondam 2 , Julie Judith Takadong Tsafack 2 , James Sasanya 3 , Wim Reybroeck 4 , Muhammad Ntale 5 , Steven Allan Nyanzi 5 , Emmanuel Tebandeke 5
Affiliation  

The study carried out a primary validation of Charm II tests for the detection of antimicrobial residues in aquaculture fish. The validation was performed according to European Commission Decision 2002/657/EC and the parameters determined included: detection capability, repeatability, reproducibility, specificity and robustness for the detection of antimicrobial residues in fish. Fish materials from different species including cat fish, trout, salmon, sea bass, tilapia, lingue and pangasius, were spiked with varying concentrations of selected antimicrobials including sulfonamides, β-lactams, macrolides, tetracyclines and aminoglycosides to determine the detection capabilities and other validation parameters of the Charm II tests. Results of the validation showed that the detection capabilities for the tetracyclines ranged from 25 to 100 µg/kg, while the sulfonamides and aminoglycosides were detected at 25 µg/kg for all species under study. The detection capabilities for the beta-lactams ranged from 25 to 300 µg/kg; and was 100 µg/kg for the tested macrolides. Results of the study showed that there was no significant difference between counts for samples read immediately after addition of the scintillation liquid and those read 14 h after addition of the scintillation liquid, provided that there was good vortexing before analysis. There was also no significant difference between counts for the same samples analyzed in different runs under repeatability and reproducibility conditions at the same spiking concentrations for the different fish species analyzed. The relative standard deviation for both repeatability and reproducibility ranged from 1.2 to 15.1%. The Charm II tests were found to be 100% group specific, as none of the antimicrobials kits, gave false positive results when testing non-target antimicrobial drugs. Results of this study demonstrate the suitability of the Charm II technique as a rapid screening tool for detection of antimicrobial residues in a variety of fish species at maximum residue limits (MRL) established in the EU guidelines, with the exception of tilmicosin which was detected at 2 MRL. The results also prove the robustness, specificity, reliability and precision of the Charm II assay in the detection of various antimicrobial residuals in fish and its applicability for the rapid evaluation of the quality of aquaculture fish for safety and trade purposes.

中文翻译:

Charm II测试的初步验证,用于检测一系列水产养殖鱼类中的抗菌素残留。

该研究对Charm II测试进行了初步验证,该测试用于检测水产养殖鱼类中的抗菌素残留。根据欧洲委员会第2002/657 / EC号决定进行验证,确定的参数包括:检测鱼类中抗菌素残留的检测能力,重复性,再现性,特异性和耐用性。将来自不同物种的鱼材料(包括猫鱼,鳟鱼,鲑鱼,鲈鱼,罗非鱼,舌和pangasius)掺入不同浓度的选定抗微生物剂,包括磺酰胺,β-内酰胺,大环内酯,四环素和氨基糖苷,以确定检测能力和其他验证Charm II测试的参数。验证结果表明,四环素的检测能力为25至100 µg / kg,而所研究的所有物种的磺酰胺和氨基糖苷含量均为25 µg / kg。β-内酰胺的检测能力范围为25至300 µg / kg。对于测试的大环内酯类药物为100 µg / kg。研究结果表明,只要在分析前有良好的涡旋,在添加闪烁液后立即读取的样品与添加闪烁液之后14小时读取的样品的计数之间没有显着差异。在重复性和再现性条件下,相同的加标浓度下,对于不同鱼种,在不同运行中分析的相同样品的计数之间也没有显着差异。重复性和再现性的相对标准偏差为1.2%至15.1%。发现Charm II测试具有100%的组特异性,因为在测试非目标抗菌药物时,没有一种抗菌药盒都能给出假阳性结果。这项研究的结果证明了Charm II技术适合作为快速筛查工具来检测欧盟准则中规定的最大残留限量(MRL)的各种鱼类中的抗菌素残留的方法,但铁氧体蛋白的检测方法为2 MRL。结果还证明了Charm II分析在检测鱼类中各种抗菌残留物中的鲁棒性,特异性,可靠性和精确性,并且可用于为安全和贸易目的快速评估水产养殖鱼的质量。在测试非目标抗菌药物时给出假阳性结果。这项研究的结果证明了Charm II技术作为快速筛查工具的适用性,可用于检测欧盟准则中规定的最大残留限量(MRL)的各种鱼类中的抗菌素残留,但在2011年检测到的提米卡星除外2 MRL。结果还证明了Charm II分析在检测鱼类中各种抗菌残留物中的鲁棒性,特异性,可靠性和精确性,并且可用于为安全和贸易目的快速评估水产养殖鱼的质量。在测试非目标抗菌药物时给出假阳性结果。这项研究的结果证明了Charm II技术作为快速筛查工具的适用性,可用于检测欧盟准则中规定的最大残留限量(MRL)的各种鱼类中的抗菌素残留,但在2011年检测到的提米卡星除外2 MRL。结果还证明了Charm II分析在检测鱼类中各种抗菌残留物中的鲁棒性,特异性,可靠性和精确性,并且可用于为安全和贸易目的快速评估水产养殖鱼的质量。这项研究的结果证明了Charm II技术作为快速筛查工具的适用性,可用于检测欧盟准则中规定的最大残留限量(MRL)的各种鱼类中的抗菌素残留,但在2011年检测到的提米卡星除外2 MRL。结果还证明了Charm II分析在检测鱼类中各种抗菌残留物中的鲁棒性,特异性,可靠性和精确性,并且可用于为安全和贸易目的快速评估水产养殖鱼的质量。这项研究的结果证明了Charm II技术作为快速筛查工具的适用性,可用于检测欧盟准则中规定的最大残留限量(MRL)的各种鱼类中的抗菌素残留,但在2011年检测到的提米卡星除外2 MRL。结果还证明了Charm II分析在检测鱼类中各种抗菌残留物中的鲁棒性,特异性,可靠性和精确性,并且可用于为安全和贸易目的快速评估水产养殖鱼的质量。
更新日期:2020-04-25
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