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Artigos • Matéria (Rio J.) 27 (2) • 2022 • https://doi.org/10.1590/S1517-707620220002.1385   copy

Determination of Indigo Carmine's toxicity in soil by respiratory method

Authorship SCIMAGO INSTITUTIONS RANKINGS

ABSTRACT

The study of dyes and their impacts on the environment is a condition for adopting technical information capable of providing better management practices. The lack of Índigo Carmim Material Safety Data Sheet (MSDS) information’s, which, in Brazil, is regulated by the ABNT motivated the investigation about toxicity of this dye in soil. This work used the respirometric method to verify the amount of CO2 released by the respiration of the soil biota. The microorganisms’ behaviors were studied in the presence of Indigo Carmine at concentrations of 1, 100 and 1000 ppm. The results demonstrate that Indigo Carmine does not present toxic effects for the microorganisms present in the analyzed soil. In addition, an increase in biota respiration has been demonstrated, indicating biodegradability of the dye.

Keywords
Indigo Carmine; Dye; MSDS; Toxicity; Biodegradation

Laboratório de Hidrogênio, Coppe - Universidade Federal do Rio de Janeiro, em cooperação com a Associação Brasileira do Hidrogênio, ABH2 Av. Moniz Aragão, 207, 21941-594, Rio de Janeiro, RJ, Brasil, Tel: +55 (21) 3938-8791 - Rio de Janeiro - RJ - Brazil
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