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Title: Anthocyanin immobilization in carboxymethylcellulose/starch films : a sustainable sensor for the detection of Al(III) ions in aqueous matrices.
Authors: Silva, Heriveltom Morais da
Mageste, Aparecida Barbosa
Silva, Sílvia Juliana Barros e
Ferreira, Guilherme Max Dias
Ferreira, Gabriel Max Dias
Keywords: Black rice
Colorimetric sensor
Issue Date: 2020
Citation: SILVA, H. M. et al. Anthocyanin immobilization in carboxymethylcellulose/starch films: a sustainable sensor for the detection of Al(III) ions in aqueous matrices. Carbohydrate Polymers, v. 230, n. 115679, fev. 2020. Disponível em: <>. Acesso em: 10 fev. 2020.
Abstract: A robust and sustainable sensor for the detection of Al(III) ions in water was developed by immobilization of anthocyanin (AN) from black rice in a film formed by carboxymethylcellulose (CMC) and starch. Characterization of the films was performed using solubility, thickness, FTIR, and mechanical analysis. The film exhibited an irreversible color change from red to purple in response to the presence of Al(III). The best colorimetric response of the sensor was observed at pH 4.5 and a time of 60 min, achieving the detection of 3 mg L−1 of Al(III). For concentrations higher than 5 mg L−1, the sensor response time decreased to 20 min. The minimum Al(III) concentration detected with the naked eye was lower than the maximum permissible concentrations in aqueous effluents according to different legislations, indicating the potential of this study to develop sensors for the detection of Al(III).
ISSN: 0144-8617
Appears in Collections:DEQUI - Artigos publicados em periódicos

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