Determination of synthetic food colorants in fish products by an HPLC-DAD method

Highly selective and sensitive detection of amaranth by using carbon dots-based nanosensor

“…Comparison of our sensor performance with other analytical methods of amaranth detection is listed in Table S2. † 5,7,8,[10][11][12][13]52 Our proposed method achieves a lower LOD than other reported methods even though it is not as good as ELISA and HPLC-MS detection methods. 7,13 However, it is noteworthy that most other reported analytical methods require long analysis time, costly equipment and complex operations while our proposed method is of rapid response, good accuracy and precision, simple operation and low cost, all of which are benecial to routine amaranth detection in real samples.…”

“…3 Thus, the amount of amaranth in food must be strictly controlled and it is of high signicance to develop an accurate, sensitive, simple, rapid and economic method for amaranth detection to safeguard human health and food safety. Currently, methods for amaranth determination include high performance liquid chromatography-diode array detector (HPLC-DAD), 4,5 high performance liquid chromatography-ultra-violet detection (HPLC-UV), 6 liquid chromatography-mass spectrometry (LC-MS), 7 electrochemistry, [8][9][10] capillary electrophoresis (CE), 11 thin layer chromatography (TLC) 12 and enzyme-linked immunosorbent assay (ELISA) 13 methods. Although these methods have been effectively used for amaranth detection, they still have some shortcomings such as materials and time consumption, complex operation and expensive instruments.…”

Simultaneous Determination of Synthetic Food Dyes Using a Single Cartridge for Preconcentration and Separation Followed by Photometric Detection

“…Solid phase extraction (SPE) is one of the most efficient methods of dye extraction from complex matrices. To extract anionic dyes, the application of various adsorbents such as wool [8], polyamide [9], alumina [10], nonpolar organopolymer sorbents [11,12], magnetic adsorbents [13,14], and amino-functionalised nanosilica [15] has been reported. Previously, we had developed a method for determination of Sunset Yellow dye (SY), based on its sorption preconcentration using hydrophobic adsorbent hexadecylsilica (HDS) with direct detection of the dye in the phase of adsorbent by diffuse reflectance spectroscopy [16].…”

“…Multicomponent mixtures of dyes can be analyzed by reversed-phase HPLC [9,11,17]. Although there is limited practical need in simultaneous determination of many synthetic dyes, the separation up to 40 dyes is possible by HPLC with gradient elution [18].…”

Chitosan-based adsorption and freeze deproteinization: Improved extraction and purification of synthetic colorants from protein-rich food samples

“…As in quantitative work on extraction and purification, losses are expected to be reduced to a minimum, study on their determination should be dedicated to the improvement of extraction from food. To a great extent, the low efficiency of extraction and poor purification of synthetic food colorants are caused by their adsorption with soluble proteins and their limited solubility in the extract solvent (Karanikolopoulos, Gerakis, Papadopoulou, & Mastrantoni, 2015).…”