Kissenkötter Jonas, Böhlken-Fascher Susanne, Abd El Wahed Ahmed
Department of Animal Science, Division of Microbiology and Animal Hygiene, Georg-August-University of Goettingen, D-37077 Goettingen, Germany.
Institute of Animal Hygiene and Veterinary Public Health, University of Leipzig, D-04103 Leipzig, Germany.
Foods. 2020 Oct 1;9(10):1392. doi: 10.3390/foods9101392.
Detection of animal species in meat product is crucial to prevent adulterated and unnecessary contamination during processing, in addition to avoid allergy and religious consequences. Gold standard is the real-time PCR assays, which has a limited target capability. In this study, we have established a rapid sequencing protocol to identify animal species within hours. Sequencing was achieved by nanopore sequencing and data analysis offline BLAST search. The whole procedure was conducted in a mobile suitcase lab. As per national and international regulations, the developed assay detected adulteration of pork meat with 0.1% of horse, chicken, turkey, cattle, sheep, duck, rabbit, goat, and donkey. The developed test could be used on-site as a rapid and mobile detection system to determine contamination of meat products.
检测肉制品中的动物种类对于防止加工过程中的掺假和不必要的污染至关重要,此外还能避免过敏和宗教方面的影响。金标准是实时PCR检测法,但其靶向能力有限。在本研究中,我们建立了一种快速测序方案,可在数小时内识别动物种类。通过纳米孔测序和离线BLAST搜索进行数据分析来实现测序。整个过程在一个移动手提箱实验室中进行。根据国家和国际法规,所开发的检测方法能检测出猪肉中掺有0.1%的马、鸡、火鸡、牛、羊、鸭、兔、山羊和驴的情况。所开发的检测方法可作为一种快速移动检测系统用于现场,以确定肉制品的污染情况。