Determination of synthetic food dyes in commercial soft drinks by TLC and ion-pair HPLC

Andrade, Francisca Ivani de; Guedes, Maria Izabel Florindo; Vieira, Ícaro Gusmão Pinto; Mendes, Francisca Noélia Pereira; Rodrigues, Paula Alves Salmito; Maia, Carla Soraya Costa; Ávila, Maria Marlene Marques; Ribeiro, Luzara de Matos

doi:10.1016/j.foodchem.2014.01.100

Cited by 142 publications

(45 citation statements)

References 16 publications

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“…Dyes in their anionic forms are poorly retained in RP-LC systems, which may be explained by electrostatic repulsion between anions and the deprotonated residual silanol groups present on the silicabased stationary phase. Separation of different dyes is most often performed in reversed phase (RP) or ion pair (IP) systems, while quantitative analysis is usually based on measurements via UV-VIS detection, especially using diode array detector (DAD) (Fuh and Chia 2002;Kiseleva et al 2003, Tuzimski andWoźniak 2008;Culzoni et al 2009;Tuzimski 2011;Yan et al 2012;Petigara Harp et al 2013;Zou et al 2013;De Andrade et al 2014;Li et al 2015;Qi et al 2015;Šuleková et al 2016), or employing MS (Fuh and Chia 2002;Sun et al 2007;Pardo et al 2009;Feng et al 2011;Liu et al 2011;Chen et al 2013;Li et al 2013;Zou et al 2013;Li et al 2014;Jia et al 2014;Li et al 2015;Tsai et al 2015;Qi et al 2015). There are also some literature reports devoted to utilization of gas chromatography coupled with MS (GC-MS) (Otero et al 2016) or capillary electrophoresis (CE) (Del Giovine and Bocca 2003;Huang et al 2005;Prado et al 2006) for food colours analysis.…”

Section: Introductionmentioning

confidence: 99%

Application of High-Performance Liquid Chromatography with Diode Array Detector for Simultaneous Determination of 11 Synthetic Dyes in Selected Beverages and Foodstuffs

Rejczak

Tuzimski

2017

Food Anal. Methods

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A simple, inexpensive and robust high-performance liquid chromatography diode array detector (HPC-DAD) procedures are proposed to analyse food dyes in beverages, hard candy and fish roe samples. An ether-linked phenyl stationary phase provides sufficient selectivity and chromatographic performance for separation of 11 sulfonated azo dyes. Beverage samples were only diluted (and degassed when needed) before analysis. Solidphase extraction (SPE) or matrix solid-phase dispersion (MSPD) procedures are proposed for efficient extraction of the analytes from candies or fish roe samples, respectively. Limits of detection (LODs) were from 0.005 to 0.013 μg mL −1 and limits of quantification (LOQs) between 0.014 and 0.038 μg mL −1. HPLC-DAD method was validated in terms of intra-and inter-day accuracy and precision at three concentration levels 2, 1, and 0.1 μg mL −1. Validation was also performed for SPE and MSPD extraction procedures including intra-and inter-day accuracy (Recovery %) and precision (RSD%), as well as intralaboratory reproducibility. Application to analysis of beverages and food samples available to consumers proved that described methods are suitable for the routine analysis of dyes in food products.

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Section: Introductionmentioning

confidence: 99%

Application of High-Performance Liquid Chromatography with Diode Array Detector for Simultaneous Determination of 11 Synthetic Dyes in Selected Beverages and Foodstuffs

Rejczak

Tuzimski

2017

Food Anal. Methods

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“…Raman spectroscopy was shown to be an effective tool for the rapid analysis and in situ detection of biomolecules since the early 1970s, and more recently, even with promising perspectives in astrobiology . The utmost advantages of Raman‐based assays are the small‐sample volume required and minimal sample preparation compared to standard separation and detection techniques such as high performance liquid chromatography, thin layer chromatography and mass spectrometry . Additionally, portable, miniaturized Raman spectrometers can be easily used outdoors .…”

Section: Introductionmentioning

confidence: 99%

Discrimination of haloarchaeal genera using Raman spectroscopy and robust methods for multivariate data analysis

Dina

Leş

Baricz

et al. 2017

J Raman Spectroscopy

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In this study, we aimed at developing a rapid and non‐destructive method to predict the genus‐level taxonomic affiliation of phenotypically similar halophilic archaea of Halobacteria Class. For this purpose, representatives of three widespread and frequently isolated haloarchaeal genera (Halobacterium sp., Haloferax sp. and Halorubrum sp.) were investigated by means of Raman spectroscopy. The most relevant Raman bands exhibited at 1505, 1150 and 1000 cm−1, respectively, were ascribed to the bacterioruberin carotenoid found in haloarchaea. Due to the similar spectral profiles, a robust chemometric approach based on fuzzy principal component analysis and linear discriminant analysis for the classification of the three halophilic strains was employed, and the high‐accuracy grouping of spectral data corresponding to those strains was achieved. Copyright © 2017 John Wiley & Sons, Ltd.

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“…The addition of food dyes into the processing of foodstuffs is a common strategy to improve the sensory properties, color and commercial characteristics [1,2,3]. Generally, most food dyes widely used in China and abroad are synthetic azo dyes, and they are applied in fields such as foodstuffs, drugs and cosmetics [4] due to their high brightness and wide color spectrum.…”

Section: Introductionmentioning

confidence: 99%

A Novel Preparation Method of Two Polymer Dyes with Low Cytotoxicity

Zhang

Cui

et al. 2017

Materials

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A new preparation method of polymer dyes was developed to improve both the grafting degree of the azo dyes onto O-carboxymethyl chitosan (OMCS) and the water solubility of prepared polymer dyes. Firstly, the coupling compound of two azo edible colorants, sunset yellow (SY) and allura red (AR), was grafted onto OMCS, and then coupled with their diazonium salt. The chemical structure of prepared polymer dyes was determined by Fourier transform-infrared spectroscopy and 1H-NMR, and the results showed that the two azo dyes were successfully grafted onto OMCS. The grafting degree onto OMCS and the water solubility of polymer dyes were tested, and the results showed that they were both improved as expected. The UV-vis spectra analysis results showed that the prepared polymer dyes showed similar color performance with the original azo dyes. Eventually, the cytotoxicity of prepared polymer dyes was tested and compared with the original azo dyes by a cytotoxicity test on human liver cell lines LO2, and the results showed that their grafting onto OMCS significantly reduced the cytotoxicity.

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Determination of synthetic food dyes in commercial soft drinks by TLC and ion-pair HPLC

Cited by 142 publications

References 16 publications

Application of High-Performance Liquid Chromatography with Diode Array Detector for Simultaneous Determination of 11 Synthetic Dyes in Selected Beverages and Foodstuffs

Application of High-Performance Liquid Chromatography with Diode Array Detector for Simultaneous Determination of 11 Synthetic Dyes in Selected Beverages and Foodstuffs

Discrimination of haloarchaeal genera using Raman spectroscopy and robust methods for multivariate data analysis

A Novel Preparation Method of Two Polymer Dyes with Low Cytotoxicity

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