High-throughput identification of meat ingredients in adulterated foods based on centrifugal integrated purification-CRISPR array.

Food Chem

Department of Food Science & Engineering, College of Life Science and Technology, Jinan University, Guangzhou 510632, China. Electronic address:

Published: June 2024

AI Article Synopsis

  • - The global food industry urgently needs accurate methods to detect food fraud, leading to the creation of a new system called CIPAM for detecting meat adulteration.
  • - CIPAM uses a centrifugal microfluidic chip that combines DNA extraction with a CRISPR-based detection method, simplifying the process and allowing results to be obtained in just 30 minutes.
  • - This system provides a high detection accuracy of 100%, making it suitable for use by food regulatory authorities to ensure meat quality across different types like pork, chicken, duck, and lamb.

Article Abstract

Rapid, accurate, and sensitive analytical methods for the detection of food fraud are now an urgent requirement in the global food industry to ensure food quality. In response to this demand, a centrifugal integrated purification-CRISPR array for meat adulteration (CIPAM) was established. In detail, CIPAM system combines microneedles for DNA extraction and RAA-CRISPR/Cas12a integrated into a centrifugal microfluidic chip for the detection of meat adulteration. The RAA-CRISPR/Cas12a reaction reagents were pre-embedded into the different reaction chambers on the microfluidic chip to achieve the streamline of operations, markedly simplifying the detection process. The whole reaction was completed within 30 min with a detection limit of 0.1 % (w/w) in pig, chicken, duck, and lamb products. Referring to the results of the standard method, CIPAM system achieved 100 % accuracy. The automatic multiplex detection process implemented in the developed CIPAM system met the needs of food regulatory authorities.

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http://dx.doi.org/10.1016/j.foodchem.2024.138507DOI Listing

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