Institute of Photonics, University of Eastern Finland , Joensuu, Finland.
Department of Electronics and Telecommunications Engineering, Dar Es Salaam Institute of Technology , Dar Es Salaam, Tanzania.
Food Addit Contam Part A Chem Anal Control Expo Risk Assess. 2020 Jul;37(7):1049-1060. doi: 10.1080/19440049.2020.1726500. Epub 2020 Feb 20.
Due to the proven carcinogenicity of Sudan III and IV dyes, they are considered global public health issues. They are banned in all forms as food colourants. We propose the monitoring of simple and easy-to-measure optical properties of palm oils, such as the refractive indices and spectrophotometric properties, as efficient indicators to detect adulteration. Coupling these results with principal component analysis, excess refractive index, and integration of transmittance introduces a novel detection tool for the authentication of edible palm oil. This opens a new opportunity for accurate handheld devices to detect adulteration and provide control in the field. This work assessed in total of 49 samples, some collected from different parts of Ghana and others, in-house adulterated samples. The Ghana Food and Drugs Authority, who performed a complex and expensive chemical analysis of the samples, confirmed our results with good agreement.
由于苏丹红 III 和 IV 染料的致癌性已被证实，因此它们被视为全球公共卫生问题。这些染料已被全球禁止作为食品着色剂使用。我们建议对棕榈油的简单易测光学特性进行监测，如折射率和分光光度特性，将其作为检测掺假的有效指标。将这些结果与主成分分析、过剩折射率和透光率积分相结合，为食用棕榈油的鉴定引入了一种新的检测工具。这为准确的手持式设备提供了一个新的机会，可以在现场进行检测和控制。这项工作共评估了 49 个样本，其中一些是从加纳不同地区收集的，还有一些是内部掺假的样本。加纳食品和药物管理局对这些样本进行了复杂且昂贵的化学分析，结果与我们的分析吻合良好。
