Research on quantitative detection technology of raccoon-derived ingredient adulteration in sausage products

文献类型： 外文期刊

第一作者： Wang, Hui

作者： Wang, Hui;Chen, Chen;Xie, Mengying;Zhang, Yan;Chen, Boxu;Li, Yongyan;Zhou, Wei;Jia, Wenshen;Chen, Jia;Chen, Jia;Zhou, Wei

作者机构：

关键词： droplet digital PCR; quantitative study; raccoon; sausage adulteration

期刊名称：FOOD SCIENCE & NUTRITION （ 影响因子：3.5； 五年影响因子：4.2 ）

ISSN： 2048-7177

年卷期： 2024 年 12 卷 4 期

页码：

收录情况： SCI

摘要： This project presents a quantitative detection method to identify raccoon-derived ingredient adulteration in sausage products. The specific copy gene of the raccoon was selected as the target gene. According to the specificity of its primer and probe, the quantitative detection method of raccoon microdrops by droplet digital PCR was established. In addition, the accuracy of the proposed method was verified by artificially mixed samples, and the applicability of this method was tested based on the commercially available products. The experimental results indicate that the raccoon mass (M) and raccoon-extracted DNA concentration have a good linear relationship when the sample content is 5-100 mg, and there is also a significant linear relationship between DNA content and DNA copy number (C) with R2 = .9982. Therefore, using DNA concentration as the median signal, the conversion equation between raw raccoon mass (M) and DNA copy number (C) could be obtained as follows: M = (C + 177.403)/16.954. The detection of artificially mixed samples and commercial samples shows that the method is accurate and suitable for quantitative adulteration detection of various sausage products in the market. This manuscript describes a laboratory method for quantitative detection of raccoon-derived components in sausage. Using DNA concentration as the median signal to establish the equation between raccoon meat mass and DNA copy number. Besides, the applicability of this method was verified through artificial adulteration models and 50 different commercial sausage products.image

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