Issue |
J. Eur. Opt. Soc.-Rapid Publ.
Volume 15, Number 1, 2019
Highlights of EOSAM 2018
|
|
---|---|---|
Article Number | 21 | |
Number of page(s) | 5 | |
DOI | https://doi.org/10.1186/s41476-019-0117-0 | |
Published online | 11 September 2019 |
Research
Qualitative analysis of Sudan IV in edible palm oil
1
Institute of Photonics, University of Eastern Finland, 80101, Joensuu, Finland
2
Institute of Photonics and Department of Environmental and Biological Sciences, University of Eastern Finland, P. O. Box 111, FI-80101, Joensuu, Finland
3
Food Physio-Chemical laboratories, Food and Drugs Authority, P. O. Box CT 2783, Cantonments Accra, Ghana
Received:
1
March
2019
Accepted:
6
September
2019
Background: Palm oil is one of the most useful vegetable available. Sudan IV dye is used as hue enhancer in palm oil despite the ban as food colorant due to its carcinogenicity and mutagenicity by the International Agency for Research on Cancer (IARC).
Methods: Surface enhanced Raman spectroscopy (SERS) coupled with chemometric methods was applied to detect the presence of Sudan IV in some edible palm oil samples.
Results: We studied the samples within the 1200–1800 cm− 1 Raman frequency range. In predicting adulteration, we used 1388 cm− 1 Raman peak that is associated with Sudan IV as our marker. We were able to confirm adulteration in four of the five palm oil samples provided by the Food and Drug Authority of Ghana.
Conclusions: With these methods, we confirmed the results from Food and Drug Authorities of Ghana by proving that there were indeed Sudan IV adulteration in some palm oil samples.
Key words: Sudan IV / Palm oil / Adulteration / SERS / And authentication
© The Author(s) 2019
Open Access This article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made.
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