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基于多重PCR设计一种用于检测加工碎肉制品中各种禽肉的新方法。

Designing a novel method based on multiplex PCR for detecting various meat of birds in processed ground meat products.

作者信息

Rajaei Negin, Doosti Abbas

机构信息

Department of Biology, Faculty of Basic Sciences, Shahrekord Branch, Islamic Azad University, Shahrekord, Iran.

Biotechnology Research Center, Shahrekord Branch, Islamic Azad University, Shahrekord, Iran.

出版信息

Food Chem (Oxf). 2023 Jul 13;7:100177. doi: 10.1016/j.fochms.2023.100177. eCollection 2023 Dec 30.

Abstract

Falsified food directly influences wildlife, fair trade, religion, and the health of society. Here, we report a multiplex polymerase chain reaction to evaluate the accurate determination of seven species of bird meat in meals on a single assay platform. To amplify segments of DNA from Columba livia, Corvus moneduloides, Gallus gallus, Coturnix japonica, Phasianus colchicus, Struthio camelus, and Meleagris gallopavo meats, respectively, a total of seven sets of species-specific primers targeting the mitochondrial and cytochrome genes were developed. Gel photographs and electrochromatography from an Experion Bioanalyzer were used to identify all PCR products. Species specificity checks discovered no cross-species amplification. The applicability of its screening to find target species in processed food was shown in commercial and model meatballs. A validation study revealed that the test is reliable, quick, affordable, repeatable, specific, and accurate down to 50,000 mitochondrial copies. It might be used for raw meats and products involving processed and severely deteriorated food samples. The customers, the food business, and law enforcement would all benefit immensely from this suggested approach.

摘要

掺假食品直接影响野生动物、公平贸易、宗教以及社会健康。在此,我们报告一种多重聚合酶链反应,用于在单一检测平台上评估餐食中七种鸟类肉的准确鉴定。为了分别从家鸽、新喀鸦、原鸡、日本鹌鹑、雉鸡、鸵鸟和火鸡的肉中扩增DNA片段,共开发了七组针对线粒体和细胞色素基因的物种特异性引物。使用来自Experion生物分析仪的凝胶照片和电泳图谱来鉴定所有PCR产物。物种特异性检查未发现跨物种扩增。在商业肉丸和模型肉丸中展示了其在加工食品中筛选目标物种的适用性。一项验证研究表明,该检测可靠、快速、经济实惠、可重复、特异,并且在低至50,000个线粒体拷贝时仍准确。它可用于生肉以及涉及加工和严重变质食品样本的产品。客户、食品企业和执法部门都将从这种建议的方法中受益匪浅。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/5a8e/10753382/b9f11954b29d/gr1.jpg

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