Determination of food colorants in a wide variety of food matrices by microemulsion electrokinetic capillary chromatography. Considerations on the found concentrations and regulated consumption limits
| Autor: | Ane Bordagaray, Miren Ostra, Rosa Garcia-Arrona, Maider Vidal |
|---|---|
| Rok vydání: | 2017 |
| Předmět: |
Food industry
Food chemistry 01 natural sciences High-performance liquid chromatography Analytical Chemistry chemistry.chemical_compound Pigment 0404 agricultural biotechnology Limit of Detection Microemulsion Chromatography High Pressure Liquid Tartrazine Chromatography Micellar Electrokinetic Capillary Chromatography business.industry 010401 analytical chemistry Benzenesulfonates Food Coloring Agents 04 agricultural and veterinary sciences General Medicine 040401 food science Environmentally friendly 0104 chemical sciences Solvent chemistry visual_art visual_art.visual_art_medium Solvents business Azo Compounds Food Science |
| Zdroj: | Food chemistry. 262 |
| ISSN: | 1873-7072 |
| Popis: | Color additives are used widely by the food industry to confer a desirable appearance. Some of the most used colorants (Tartrazine (E102), Sunset Yellow (E110), Red Allure (E129) and Blue Brilliant (E133)) were determined in this study using microemulsion electrokinetic capillary chromatography (MEEKC). Regression coefficients were greater than 0.9981; intra- and inter-day precisions, in terms of percentage RSD, were less than 7.01% and 8.55%, respectively; recoveries were between 90 and 100% in most cases. LODs and LOQs ranged from 0.24 to 1.21 mg L−1 and from 0.80 to 4.03 mg L−1, respectively. Moreover, MEEKC consumed less solvent than HPLC, making the analysis more environmentally friendly. The proposed method is suitable for the determination of colorants in a wide variety of foods. Results showed that consumers should be aware of colorants to avoid consumption exceeding recommended amounts. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Full Text from ScienceDirect