Construction and evaluation of positive plasmid molecules for adulteration detection of fur animal-derived components in meat products
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1.Institute for Food and Drug Control, Shandong Ji’nan 250000, China;2.Key Laboratory of Supervising Technology for Meat and Meat Products for State Market Regulation, Shandong Ji’nan 250000, China;3.Linyi Jinluo Win Ray Food Co., Ltd., Shandong Linyi 276000, China

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R155

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    Abstract:

    Objective To establish a rapid detection method for adulteration of fur animal-derived components in meat products.Methods Three positive plasmids (fox, raccon dog and mink) for detection were constructed, and their specificity, sensitivity and applicability were analyzed by real-time quantitative PCR.Results The constructed positive plasmid molecules of fox, raccoon dog and mink had high specificity and sensitivity, and the sensitivity could reach 10-4 ng/μL. The amplification efficiency of standard curves were 94.451%, 117.461% and 114.709%, respectively. And the correlation coefficient R2 was over 0.995. Three components could be detected in mixed meat samples as well as common meat products, the limits of detection were less than 1%, which had good feasibility and applicability.Conclusion The three positive plasmids constructed by this method could meet the needs of meat adulteration detection in practical work.

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ZHAI Qingyan, HUO Shengnan, YAO Xianqi, ZHENG Shichao, WANG Jun, REN Yijie, SUN Xiaohui, DU Dongxu. Construction and evaluation of positive plasmid molecules for adulteration detection of fur animal-derived components in meat products[J].中国食品卫生杂志,2023,35(3):360-366.

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History
  • Received:December 29,2021
  • Revised:
  • Adopted:
  • Online: May 24,2023
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