A novel quantitative real-time PCR method for identification and quantification of mammalian and poultry species in foods

作者：Ren, Yifei; Li, Xiang^*; Liu, Yueming; Yang, Litao^*; Cai, Yicun; Quan, Sheng; Pan, Liangwen; Chen, Shunsheng

来源：Food Control, 2017, 76: 42-51.

DOI：10.1016/j.foodcont.2017.01.003

• Meat ingredient quantification
• Real-time PCR
• Single-copy gene
• Mammalian and poultry species

Meat adulteration has posed considerable risks to public health. In this study, we developed a novel realtime quantitative PCR method for the detection of some mammalian and poultry species that are used as meat products or meat adulterants. The method was based on the detection of the single-copy nuclear gene myostatin. The specificity, heterogeneity, and copy number of myostatin were evaluated. Additionally, we determined the sensitivity and precision of the method. The results revealed that myostatin had high specificity and low heterogeneity among different mammalian and poultry species. The limit of detection was 5 pg of animal genomic DNA or 0.001% meat ingredient, and the limit of quantification was 10 pg of animal genomic DNA or 0.01% meat ingredient. The quantification results of 12 blind samples showed that the biases between the measured and true values were <25%. Therefore, the developed quantitative real-time PCR method for mammalian and poultry species is suitable for identification and quantification of different meat ingredients as a reference gene.

• 出版日期2017-6
• 单位上海交通大学; 上海海洋大学; 中华人民共和国上海出入境检验检疫局