期刊
FOOD CHEMISTRY
卷 239, 期 -, 页码 32-39出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.foodchem.2017.06.083
关键词
Food; Fraud; Oregano; Adulteration; Mass spectrometry
资金
- UK BBSRC CASE studentship [BB/M0503162/1]
Due to increasing number of food fraud incidents, there is an inherent need for the development and implementation of analytical platforms enabling detection and quantitation of adulteration. In this study a set of unique biomarkers of commonly found oregano adulterants became the targets in the development of a LC-MS/MS method which underwent a rigorous in-house validation. The method presented very high selectivity and specificity, excellent linearity (R-2 > 0.988) low decision limits and detection capabilities (< 2%), acceptable accuracy (intra-assay 92-113%, inter-assay 69-138%) and precision (CV < 20%). The method was compared with an established FTIR screening assay and revealed a good correlation of quali-and quantitative results (R-2 > 0.81). An assessment of 54 suspected adulterated oregano samples revealed that almost 90% of them contained at least one bulking agent, with a median level of adulteration of 50%. Such innovative methodologies need to be established as routine testing procedures to detect and ultimately deter food fraud. (C) 2017 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