期刊
LWT-FOOD SCIENCE AND TECHNOLOGY
卷 75, 期 -, 页码 408-416出版社
ELSEVIER
DOI: 10.1016/j.lwt.2016.08.061
关键词
Equus caballus; Meat products; Species detection; Real-time PCR; Authentication
资金
- FCT (Fundacao para a Ciencia e Tecnologia) [UID/QUI/50006/2013 - POCI/01/0145/FEDER/007265]
- FCT/MEC through national funds
- FEDER [NORTE-07-0124-FEDER-000069]
- FCT - POPH-QREN [SFRH/BPD/102404/2014, PD/BD/114576/2016]
- FSE
- MCFES
The aim of this work was the development of qualitative and quantitative methods for the detection of horse meat adulteration in processed foods. The design of new primers targeting the cytb gene of Equus caballus enabled proposing two types of assays: species-specific PCR and real-time quantitative PCR with EvaGreen dye. The assays demonstrated high sensitivity and specificity, down to 0.0001% (w/w) of horse meat in beef mixtures and 0.1 pg of horse DNA, in both raw and autoclaved meats. A normalised real-time PCR approach based on the Delta Ct method was further proposed in the range of 25% down to 0.0001%, which was effectively validated and applied to a total of 67 processed foods. The estimated horse meat content (0.10%) in one sample suggests the occurrence of cross-contamination rather than adulteration. (C) 2016 Elsevier Ltd. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据