Methods for the analysis of azo dyes employed in food industry – A review

Yamjala, Karthik; Nainar, Meyyanathan Subramania; Ramisetti, Nageswara Rao

doi:10.1016/j.foodchem.2015.07.085

Cited by 313 publications

(117 citation statements)

References 41 publications

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“…Traditionally, reported methods for the determination of dyes focused on food matrices [20][21][22][23]. The analytical methodology for cosmetics ingredients regulated in the positive lists according to the European Regulation 1223/2009 [17] was reviewed in 2016 [16].…”

Section: Analytical Methodologymentioning

confidence: 99%

Analysis of Dyes in Cosmetics: Challenges and Recent Developments

2018

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Colour plays a decisive role in the marketing of a cosmetic product. Among thousands of substances used to colour, synthetic dyes are the most widespread in the industry. Their potential secondary effects on human health and different regulatory requirements for their use between the main world markets make analytical control necessary to guarantee the safety of a cosmetic product. However, methodologies for the determination of dyes in cosmetics are scarce with respect to those reported for other cosmetic ingredients such as preservatives or ultraviolet UV filters. In addition, most of the existing methods just consider a part of the total of dyes regulated. On the other hand, many methods have been developed for matrices different than cosmetics such as foodstuff, beverages or wastewater. The current paper reviews the recent developments in analytical methodologies for the control of synthetic dyes in cosmetics proposed in the international scientific literature in the last 10 years (2008)(2009)(2010)(2011)(2012)(2013)(2014)(2015)(2016)(2017)(2018). A trend towards the use of miniaturized extraction techniques is evidenced. Due to the hydrophilic nature of dyes, liquid chromatography is the most usual choice in combination with absorbance detectors and, more recently, with mass spectrometry.

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Section: Analytical Methodologymentioning

confidence: 99%

Analysis of Dyes in Cosmetics: Challenges and Recent Developments

2018

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“…Kaur and Gupta (2012) have reviewed the determination of water-soluble and waterinsoluble food dyes by spectrophotometry. Yamjala et al (2016) comprehensively described methods for the analysis of azo dyes employed in food industry. Liquid chromatography (LC) is preferred analytical technique for artificial colourants analysis.…”

Section: Introductionmentioning

confidence: 99%

“…Selection of proper extraction technique depends on the kind of sample matrix and is also strictly connected with analytical technique that will be used to determinate the food dyes (Kucharska and Grabka 2010). Due to its advantages, like simplicity and rapidity, solid-phase extraction (SPE) is the most commonly used technique to concentrate and purify these target compounds (Tuzimski and Woźniak 2008;Baggiani et al 2009;Tuzimski 2011;Yan et al 2012;Chen et al 2013;Li et al 2014;Qi et al 2015;Yamjala et al 2016). However, in case of solid food samples, dyes ought to be extracted prior to SPE into appropriate solvent-media.…”

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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“…[72]. Liquid chromatography-based techniques are usually coupled with UV-VIS, mass spectrometry (MS) or photodiode array (PAD) detectors.…”

Section: Determination Of Dyes In Pharmaceuticalsmentioning

confidence: 99%

“…Further ion-pair high performance liquid chromatography (IP-HPLC) can also be carried out by means of using ion-pairing (hydrophobic ionic) compounds such as ammonium acetate buffer, 1-hexadecyl trimethylammonium bromide etc., to the mobile phase to improve the separation and elution of the ionic target to be analysed [72]. The used contents of added solutions are usually above 0.1 mol.dm -3 [51].…”

Section: Determination Of Dyes In Pharmaceuticalsmentioning

confidence: 99%