Please use this identifier to cite or link to this item: 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

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