Foodstuffs electrophoresis

Perez Urquiza, M. and Beltran, J.L., Determination of dyes in foodstuffs by capillary zone electrophoresis, J. Chromatogr. A, 898, 271, 2000. 

JJ.B. Nevado, C.G. Cabanillas and A.M.C. Salcedo, Method development and validation for the simultaneous determination of dyes in foodstuffs by capillary zone electrophoresis. Anal. Chim. Acta, 378 (1999) 63-71. 

M Jimidar, TP Hamoir, A Foriers, DL Massart. Comparison of capillary zone electrophoresis with high-performance liquid chromatography for the determination of additives in foodstuffs. J Chromatogr 636 179-186, 1993. 

Different protein-based methods have been reviewed for species identification in milk and dairy products, and for characterization of cheese maturity, such as electrophoretic, chromatographic, and immunological techniques (11, 12). In addition to new developments in these techniques, the interdisciplinary and dynamic nature of milk product analysis is being enhanced by the application of disciplines already used to analyze other foodstuffs. Among them, capillary electrophoresis (CE), polymerase chain reaction, and isotope ratio mass spectrometry are just gaining popularity for solving dairy authenticity problems (13-15). 

Mannina, L., Sobolev, A. R, and Capitani, D. 2012. Applications of NMR metabolomics to the study of foodstuffs Truffle, kiwifruit, lettuce, and sea bass. Electrophoresis 33 2290-2313. 

The dyes used in the prqjaiaticBi rf illidt pills can be incDipo-lated into drug analysis, tn a recent study, researchers used capillary electrophoresis to evaluate 14 dyes as part of a drug-profiling application that included Bayesian statistical analysis. The study craiducted in Europe, focused on dyes develop>ed for use in foodstuffs. Many erf ttiese dyes, which are acidic and water soluble, are available in the United States and Canada. In die study IXDQs were in the ran of 0.008-0.06 ppm and lOD was reported at 0.008 ppm. Calibration curves (an internal standard method) had about... 

Capillary electrophoresis with amperometric detection was also used for the determination of four electroactive preservatives (methylparaben, ethylparaben, propylparaben, and butylparaben) and, indirectly, two nonelectroactive preservatives (potassium sorbate and sodium lactate) in various types of foodstuffs [17]. Moreover, high-performance micellar electrokinetic capillary chromatography with amperometric detection (MECC-AD) has been also employed for the fast determination of melamine (2,4,6-triamino-s-triazine), which was occasionally used to increase the apparent protein content of milk products [18]. 

Tuma, R, Maikova, K., Samcova, E. and Stulik, K. (2011) Rapid monitoring of mono- and disaccharides in drinks, foodstuffs and foodstuff additives by capillary electrophoresis with contactless conductivity detection. Anal. Chim. Acta, 698,1 -5. 

Microfluidic ChipShop (http //www.microfluidic-chipshop.com/) has also developed portable chip-based electrophoresis systems coupled with C D for on-site food analysis (ChipGenie edition E) [192]. Because contactless conductivity allows label-free detection, it is quite attractive to monitor the stability or the degradation products related to foodstuff. The portable instmment developed by microfluidic ChipShop comprises a box with dimensions of 190x 120x80mm (wxdxh). Basically, it consists of two parts, as shown in Figure 16.13, which are closed together and locked before running... 

Many methods have been reported in the literature for the determination of parabens in different compounds based on gas chromatography [4], capillary electrophoresis (CE), and high-performance liquid chromatography (HPLC) [5]. However, a recent advance in their analysis relies on the use of flow injection analysis (FIA)-based techniques for their determination in various matrices such as foodstuffs, cosmetics, and pharmaceuticals. Flow injection-based methods exhibit advantages that include ease of automation, precision, and reduced contamination of the analyte [6]. 

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