• Home
  • Search Results
  • Environmental mutagenicity and toxicity caused by sodium metabisulfite in sea shrimp harvesting in Piauí, Brazil.

Environmental mutagenicity and toxicity caused by sodium metabisulfite in sea shrimp harvesting in Piauí, Brazil.

Chemosphere (2010-11-09)
Ivana Mara da Costa Machado Matos Carvalho, Ana Amélia Melo Cavalcante, Alisson Ferreira Dantas, Danilo Leôncio Aguiar Pereira, Francisco Cézar Costa Rocha, Francisco Massal de Oliveira, Juliana Da Silva
ABSTRACT

Sodium metabisulfite is used in marine shrimp harvesting to prevent the occurrence of black spots. Shrimps are soaked in a sodium metabisulfite solution in ice, which is disposed of in sewages that run into marine canals, creating an environmental hazard. This study evaluates the toxicity and mutagenicity caused by sodium metabisulfite in sea waters and sediments collected in a shrimp farm in Cajueiro da Praia (Luis Correia), state of Piauí, Brazil, using the Allium cepa assay. Water and sediment samples were collected in the dry and in the rainy seasons, in three sites: upstream the shrimp farm (Site 1), at the point sodium metabisulfite is discharged (Site 2), and 100 m downstream the farm (Site 3). Three sample dilutions were used (50%, 25% and 10%) for all samples. A negative control (well water) and a positive control (copper sulfate 0.0006 mg mL⁻¹) were used in each experiment. At the end of the 72-h exposure period, onion roots were measured and removed. Mutagenicity analysis included the determination of mitotic index, chromosomal aberrations and the detection of micronuclei; analysis of root size and mitotic index were used as an index of toxicity. The A. cepa assay revealed that the water and sediments samples collected in the Piauí coast contaminated with sodium metabisulfite induce toxicity. The results demonstrate that the assay may be used as a regular tool in the analysis of water parameters in shrimp farms in the coast of Piauí state, and in strategies to preserve the region's marine ecosystem.

MATERIALS
Product Number
Brand
Product Description

Sigma-Aldrich
Sodium metabisulfite, ReagentPlus®, ≥99%
Sigma-Aldrich
Sodium metabisulfite, puriss. p.a., ACS reagent, reag. Ph. Eur., dry, 98-100.5%
Sigma-Aldrich
Sodium metabisulfite, reagent grade, 97%
Sigma-Aldrich
Sodium metabisulfite, puriss., meets analytical specification of Ph. Eur., BP, NF, FCC, E223, dry, 97-100.5%
Supelco
Sodium metabisulfite, analytical standard
Sigma-Aldrich
Sodium metabisulfite, tested according to Ph. Eur.
Sigma-Aldrich
Sodium metabisulfite, anhydrous, free-flowing, Redi-Dri, ReagentPlus®, ≥99%

Social Media

LinkedIn icon
Twitter icon
Facebook Icon
Instagram Icon

MilliporeSigma

Research. Development. Production.

We are a leading supplier to the global Life Science industry with solutions and services for research, biotechnology development and production, and pharmaceutical drug therapy development and production.

© 2021 Merck KGaA, Darmstadt, Germany and/or its affiliates. All Rights Reserved.

Reproduction of any materials from the site is strictly forbidden without permission.