A study of the effects of sodium alginate and sodium carboxymethyl cellulose on the growth of common duckweed (Lemna minor L.) Scientific paper

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Bianca-Vanesa Boros
https://orcid.org/0000-0003-4362-7615
Nathalie I. Grau
https://orcid.org/0000-0002-4131-4095
Adriana Isvoran
https://orcid.org/0000-0002-3068-2642
Adina Daniela Datcu
https://orcid.org/0000-0001-7229-718X
Nicoleta Ianovici
https://orcid.org/0000-0001-8296-0969
Vasile Ostafe
https://orcid.org/0000-0003-1352-1115

Abstract

Sodium alginate (ALG) and sodium carboxymethyl cellulose (CMC) are two polysaccharides that have a wide range of applications, which could lead to accidental pollution of the environment, making the assessment of their potential ecotoxicity imperative. The present study assesses the effects of ALG and CMC on the growth response of common duckweed (Lemna minor L.). The results emphasize that both polysaccharides can be classified as practically nontoxic based on their EC50 values, with ALG having a relatively higher toxicity compared to CMC. It was also observed that high doses of 1, 5 and 10 mg mL-1 of the two polysaccharides produced growth inhibitory effects against common duckweed. The toxicity of biopolymers against common duckweed, measured as EC50 values, seems to be correlated to the hydrophobicity of the monomers building the polymer. The EC50 values increase linearly with inc­reasing water solubility (log S) values and decrease linearly with the lipo­phil­icity (log P) values.

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How to Cite
[1]
B.-V. Boros, N. I. Grau, A. Isvoran, A. D. Datcu, N. Ianovici, and V. Ostafe, “A study of the effects of sodium alginate and sodium carboxymethyl cellulose on the growth of common duckweed (Lemna minor L.): Scientific paper”, J. Serb. Chem. Soc., vol. 87, no. 5, pp. 657–667, Feb. 2022.
Section
Environmental Chemistry

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