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http://repositorio.unicamp.br/jspui/handle/REPOSIP/87984
Type: | Artigo |
Title: | Assessment of the breakdown products of solar/UV induced photolytic degradation of food dye tartrazine |
Author: | Santos, Tuane Cristina dos Zocolo, Guilherme Julião Morales, Daniel Alexandre Umbuzeiro, Gisela de Aragão Zanoni, Maria Valnice Boldrin |
Abstract: | The food dye tartrazine (CI 19140) was exposed to UV irradiation from an artificial source, a mercury vapor lamp, and a natural one, sunlight. It was observed that conditions such as energy dose, irradiation time, pH and initial dye concentration affected its discoloration. There was 100% of color removal, after 30min of irradiation, when a dye solution 1×10-5molL-1 was submitted to an energy dose of 37.8Jcm-2. Liquid Chromatography coupled to Diode Array Detection and Mass Spectrometry confirmed the cleavage of the chromophore group and the formation of five by-products at low concentration. Although by-products were formed, the Salmonella/microsome mutagenicity assay performed for both, the dye solution at a dose of 5.34mg/plate and the solutions obtained after exposure to UV irradiation, did not present mutagenic activity for TA98 and TA100 with and without S9. © 2014 Elsevier Ltd. The food dye tartrazine (CI 19140) was exposed to UV irradiation from an artificial source, a mercury vapor lamp, and a natural one, sunlight. It was observed that conditions such as energy dose, irradiation time, pH and initial dye concentration affected |
Subject: | Fotólise Fotoquímica Corante tartrazina Mutagênese |
Country: | Reino Unido |
Editor: | Elsevier |
Citation: | Food And Chemical Toxicology. Elsevier Ltd, v. 68, n. , p. 307 - 315, 2014. |
Rights: | fechado Fechado |
Identifier DOI: | 10.1016/j.fct.2014.03.025 |
Address: | https://www.sciencedirect.com/science/article/pii/S0278691514001549 |
Date Issue: | 2014 |
Appears in Collections: | FT - Artigos e Outros Documentos |
Files in This Item:
File | Description | Size | Format | |
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2-s2.0-84899006258.pdf | 1.65 MB | Adobe PDF | View/Open |
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