A CPE-HPLC (UV) method was developed for the determination of Sudan (I-IV) dyes, non-ionic surfactant Triton X-100 was used to extract and preconcentrate Sudan dyes from chilli powder prior to their determination by HPLC-UV. The separation and determination of Sudan dyes was then carried out in the HPLC-UV system with isocratic elution, and the detector was set at 500 nm. The parameters and variables that affect the extraction were investigated. Under optimum conditions: 3% of Triton X-100 (W/V), 10% of Na2CO3 (W/V), heat-assisted at 70 degrees C for 30 min. Recoveries of the Sudan dyes ranged from 80.70% to 85.45% in chilli powder by CPE method, with all the relative standard deviations of less than 3%. Limit of detection (LOD) and limit of quantification (LOQ) were in the range of 2.0-4.0 and 7.0-12.0 microg kg(-1) in chilli powder, respectively.
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http://dx.doi.org/10.1016/j.aca.2007.10.034 | DOI Listing |
J Fluoresc
January 2025
School of Chemical and Environmental Engineering, Yancheng Teachers University, Yancheng City, Jiangsu Province, 224007, People's Republic of China.
Sudan dyes are recognized as carcinogens, which are strictly determined whether there are them in food for food safety. Hence, in order to understand the mechanism at the molecular level, this work investigated the binding interactions of Sudan I-IV with calfthy mus DNA. The synchronous fluorescence and UV-vis spectral results suggested the complex formation between Sudan I-IV and ct-DNA.
View Article and Find Full Text PDFToxicol Res (Camb)
December 2024
School of Forensic Science, National Forensic Sciences University (An Institution of National Importance), Bhopal - 462030 (MP), India.
Azo food dyes are prohibited in most countries, but their injudicious use is still reported particularly in the developing Nations. Continuous use of contaminated food raises health concerns and given this the present study designed to investigate the effects of 3 non-permitted azo dyes (metanil yellow - MY, malachite green - MG, and sudan III - SIII) on neurobehavioral, neurochemicals, mitochondrial dysfunction, oxidative stress, and histopathological changes in the corpus striatum of rats. Rats were grouped and treated with MY (430 mg/kg), MG (13.
View Article and Find Full Text PDFJ Sep Sci
October 2024
School of Chemistry and Chemical Engineering and School of Physical Science and Technology, Kunming University, Yunnan, China.
In this work, a new supramolecular solvent (SUPRAS) was prepared for the first time using hexafluorobutanol (HFB) and farnesol (FO). FO acts as an amphiphile and HFB as a coacervation inducer and density regulator. The method of dispersive liquid-liquid microextraction followed by high-performance liquid chromatography, supported by a vortex technique, was established using the prepared SUPRAS for the determination of Sudan dyes in aqueous samples.
View Article and Find Full Text PDFFood Chem
February 2025
Erciyes University, Faculty of Sciences, Department of Chemistry, 38039 Kayseri, Türkiye; Technology Research and Application Center (ERU-TAUM), Erciyes University, 38039 Kayseri, Türkiye; United Methodist University, The College of Natural & Applied Sciences, Monrovia, Liberia.
This work presents a novel deep eutectic solvent (DES) formed of octylamine and oxalic acid (Oct-Oxa) that was effectively used to separate Sudan II dye from food and water samples. The prepared DES was characterized using Fourier transform infrared spectroscopy (FT-IR) and carbon-13 nuclear magnetic resonance (C NMR). Key parameters were optimized, including a short ultrasonication time of 30 s and a very low DES volume of only 500 μL that could be separated within one minute of centrifugation.
View Article and Find Full Text PDFNanomedicine
November 2024
Cardiology Research Institute, Tomsk National Research Medical Center, Russian Academy of Sciences, 634012 Tomsk, Russia.
The use of chemically modified nanocomposites for atherosclerotic plaques can open up new opportunities for studying their effect on changing the structure of the plaque itself. It was shown on the model of the greater omentum of two groups of experimental animals (rats n = 30), which were implanted with Fe@C NPs nanocomposites of 10-30 Nm size into the omentum area. Group 1 (n = 15) consisted of animals that were implanted with chemically modified Fe@C NPs nanocomposites and control group 2 (n = 15) was with non-modified Fe@C NPs nanocomposites.
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