Universidad Nacional del Sur, Departamento de Química, INQUISUR (UNS-CONICET), Av. Alem 1253 (B8000CPB), Bahía Blanca, Buenos Aires, Argentina.
Universidade Federal da Paraíba, Departamento de Química, Zip Code 58051-970 João Pessoa, PB, Brazil.
Food Chem. 2020 Oct 30;328:127101. doi: 10.1016/j.foodchem.2020.127101. Epub 2020 May 20.
Sudan I is a synthetic-azo dye commonly used to adulterate foods to increase sensory appearance. However, it is banned due to its carcinogenic, mutagenic and genotoxic properties, which represent a serious risk to human health. Thus, this paper proposes a feasibility study to identify and quantify Sudan I dye in ketchup samples using colour histograms (obtained from digital images) and multivariate analysis. The successive projections algorithm coupled with linear discriminant analysis (SPA-LDA) classified correctly all samples, while the partial least squares coupled with SPA for interval selection (iSPA-PLS) quantified adequately the adulterant, attaining values of RMSEP of 11.64 mg kg, R of 0.96, RPD of 5.28, REP of 13.63% and LOD of 39.45 mg kg. Therefore, the proposed methodology provides a simple, fast, inexpensive, promising analytical tool for the screening of both the quality and safety of ketchup samples. As a consequence, it can help to protect the consumer's health.
苏丹红 I 是一种常用于食品掺假以增加感官外观的合成偶氮染料。然而，由于其致癌、致突变和遗传毒性特性，它被禁止使用，因为这对人类健康构成了严重威胁。因此，本文提出了一项使用颜色直方图（从数字图像中获得）和多元分析来识别和定量番茄酱样品中苏丹红 I 染料的可行性研究。连续投影算法与线性判别分析（SPA-LDA）正确分类了所有样品，而带有间隔选择的偏最小二乘与 SPA（iSPA-PLS）充分定量了掺杂物，达到 RMSEP 值为 11.64 mg kg、R 值为 0.96、RPD 值为 5.28、REP 值为 13.63%和 LOD 值为 39.45 mg kg。因此，所提出的方法为番茄酱样品的质量和安全性筛选提供了一种简单、快速、经济、有前途的分析工具。因此，它可以帮助保护消费者的健康。
