Development and Preliminary Application of an Indirect Competitive ELISA Kit for Detecting Deoxynivalenol

  • HAN Li ,
  • ZHANG Wenju ,
  • WANG Ziliang ,
  • LI Yuetao ,
  • JIANG Jinqing ,
  • LI Renfeng ,
  • FAN Guoying ,
  • ZHANG Haitang ,
  • NIU Linlin ,
  • LYU Junmei ,
  • ZHOU Ye
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  • 1. College of Animal Science and Technology, Shihezi University, Shihezi 832000, China;
    2. College of Animal Science and Veterinary Medicine, Henan Institute of Science and Technology, Xinxiang 453003, China

Received date: 2019-05-10

  Online published: 2019-11-19

Abstract

This study was conducted to develop a self-assembled blocking indirect competitive ELISA (icELISA) kit for the detection of deoxynivalenol in feed. Based on the preparation of anti-DON monoclonal antibodies, we established the standard curve of icELISA and optimized the detection conditions, which was used to examine the performance of the kit, then the determination results were compared with the high-performance liquid chromatography (HPLC) method. The results showed that the minimum detectable concentration of the kit for DON was 1.147 ng/mL, with the detection range of 1.50 to 130.31 ng/mL, and the 50% inhibiting concentration (IC50) of 9.84 ng/mL. The recovery experiment by adding standard samples was carried out for four samples of wheat, corn, pig feed and chicken feed. The recovery was in the range of 77.1% to 113.2%, and the relative standard deviation (RSD) ranged from 4.2% to 12.6%. Besides, the kit had the advantages of high specificity, good stability, long effective life and negligible sample matrix interference. Finally, twenty blind samples were determined by the kit, and the results were in good agreement with the HPLC method. These results indicate that the icELISA kit developed in this experiment has good performance to meet the relevant technical requirements, and with the characteristics of accuracy, reliability, convenience and high throughput screening to detect DON. Therefore, it is suitable for rapid screening of DON for the market.

Cite this article

HAN Li , ZHANG Wenju , WANG Ziliang , LI Yuetao , JIANG Jinqing , LI Renfeng , FAN Guoying , ZHANG Haitang , NIU Linlin , LYU Junmei , ZHOU Ye . Development and Preliminary Application of an Indirect Competitive ELISA Kit for Detecting Deoxynivalenol[J]. Chinese Journal of Animal Nutrition, 2019 , 31(11) : 5229 -5237 . DOI: 10.3969/j.issn.1006-267x.2019.11.039

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