Toxicity and removal of Direct Red 28 diazo dye in living polymeric systems

Lobiuc, Andrei; Olaru, Stefan; Hancu, Elena Iren; Costica, Naela; Fortuna, Maria Emiliana; Zamfirache, Maria Magdalena; Constantinescu, Gabriel

Andrei Lobiuc, Stefan Olaru, Elena Iren Hancu, Naela Costica, Maria Emiliana Fortuna, Maria Magdalena Zamfirache, Gabriel Constantinescu

Toxicity and removal of Direct Red 28 diazo dye in living polymeric systems

Abstract:

Aquatic environments are often contaminated with various compounds, with potential toxicity towards aquatic organisms, which may enter the food chain. Azo dyes are used in various industries and contamination of waters has been reported. The present paper assesses the toxicity of the synthetic, water soluble Congo Red dye towards Lemna minor from a physiological and cytogenetical point of view. The dye was tested in 5-5000 ppm concentrations. Total frond surface, root growth and fresh mass reductions were registered from 5 ppm dye concentration, with a concentration-dependent response and calculated EC50 of 1530 ppm. Plant growth was completely inhibited above 2500 ppm. Dye accumulation was observed in tissues, along with necrosis formation. Chlorophyll a contents decreased, while carotenoid contents increased above 2500 ppm. Significant inhibition of PSII efficiency was recorded above 1000 ppm. Mitotic indices were decreased at 5 and 1000 ppm dye and were 0 at 5000 ppm. The number of chromosomal aberrations significantly increased at 5 and 1000 ppm dye. The growth medium was decontaminated up to 56% at 250 ppm dye concentration by Lemna plants. Congo Red azo dye presented toxicity towards Lemna minor, from a physiological and cyotgenetical point of view, especially at higher concentrations. In the same time, a phytoremediation potential of duckweed with respect to the tested dye was demonstrated.

Keywords:
C.I. 22120; diazo; photosynthetic pigments; fluorescence; cytogenetic indices; duckweed; accumulation

Issue: 2018, Volume 69, Issue 7

Pages: 1628-1635

Publication date: 2018/8/15

https://doi.org/10.37358/RC.18.7.6384

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This article is published under the Creative Commons Attribution 4.0 International License

Citation Styles

Cite this article as:
LOBIUC, A., OLARU, S., HANCU, E.I., COSTICA, N., FORTUNA, M.E., ZAMFIRACHE, M.M., CONSTANTINESCU, G., Toxicity and removal of Direct Red 28 diazo dye in living polymeric systems, Rev. Chim., 69(7), 2018, 1628-1635.

Vancouver
Lobiuc A, Olaru S, Hancu EI, Costica N, Fortuna ME, Zamfirache MM, Constantinescu G. Toxicity and removal of Direct Red 28 diazo dye in living polymeric systems. Rev. Chim.[internet]. 2018 Jul;69(7):1628-1635. Available from: https://doi.org/10.37358/RC.18.7.6384

APA 6th edition
Lobiuc, A., Olaru, S., Hancu, E.I., Costica, N., Fortuna, M.E., Zamfirache, M.M. & Constantinescu, G. (2018). Toxicity and removal of Direct Red 28 diazo dye in living polymeric systems. Revista de Chimie, 69(7), 1628-1635. https://doi.org/10.37358/RC.18.7.6384

Harvard
Lobiuc, A., Olaru, S., Hancu, E.I., Costica, N., Fortuna, M.E., Zamfirache, M.M., Constantinescu, G. (2018). 'Toxicity and removal of Direct Red 28 diazo dye in living polymeric systems', Revista de Chimie, 69(7), pp. 1628-1635. https://doi.org/10.37358/RC.18.7.6384

IEEE
A. Lobiuc, S. Olaru, E.I. Hancu, N. Costica, M.E. Fortuna, M.M. Zamfirache, G. Constantinescu, "Toxicity and removal of Direct Red 28 diazo dye in living polymeric systems". Revista de Chimie, vol. 69, no. 7, pp. 1628-1635, 2018. [online]. https://doi.org/10.37358/RC.18.7.6384

Text
Andrei Lobiuc, Stefan Olaru, Elena Iren Hancu, Naela Costica, Maria Emiliana Fortuna, Maria Magdalena Zamfirache, Gabriel Constantinescu,
Toxicity and removal of Direct Red 28 diazo dye in living polymeric systems,
Revista de Chimie,
Volume 69, Issue 7,
2018,
Pages 1628-1635,
ISSN 2668-8212,
https://doi.org/10.37358/RC.18.7.6384.
(https://revistadechimie.ro/Articles.asp?ID=6384)
Keywords: C.I. 22120; diazo; photosynthetic pigments; fluorescence; cytogenetic indices; duckweed; accumulation

RIS
TY - JOUR
T1 - Toxicity and removal of Direct Red 28 diazo dye in living polymeric systems
A1 - Lobiuc, Andrei
A2 - Olaru, Stefan
A3 - Hancu, Elena Iren
A4 - Costica, Naela
A5 - Fortuna, Maria Emiliana
A6 - Zamfirache, Maria Magdalena
A7 - Constantinescu, Gabriel
JF - Revista de Chimie
JO - Rev. Chim.
PB - Revista de Chimie SRL
SN - 2668-8212
Y1 - 2018
VL - 69
IS - 7
SP - 1628
EP - 1635
UR - https://doi.org/10.37358/RC.18.7.6384
KW - C.I. 22120
KW - diazo
KW - photosynthetic pigments
KW - fluorescence
KW - cytogenetic indices
KW - duckweed
KW - accumulation
ER -

BibTex
@article{RevCh2018P1628,
author = {Lobiuc Andrei and Olaru Stefan and Hancu Elena Iren and Costica Naela and Fortuna Maria Emiliana and Zamfirache Maria Magdalena and Constantinescu Gabriel},
title = {Toxicity and removal of Direct Red 28 diazo dye in living polymeric systems},
journal = {Revista de Chimie},
volume = {69},
number = {7},
pages = {1628-1635},
year = {2018},
issn = {2668-8212},
doi = {https://doi.org/10.37358/RC.18.7.6384},
url = {https://revistadechimie.ro/Articles.asp?ID=6384}
}

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