Sugar cane vinasse in water bodies: Impact assessed by liver histopathology in tilapia

Autor(es)

Urbano Marinho, Julia Fernanda ^[1] ; Correia, Jorge Evangelista ^[1] ; de Castro Marcato, Ana Claudia ^[1] ; Pedro-Escher, Janaina ^[1] ; Fontanetti, Carmem Silvia ^[1]

Afiliação do(s) autor(es)

^[1] UNESP, BR-13506900 Rio Claro, SP - Brazil

• Tipo de documento: Artigo Científico
• Fonte: ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY; v. 110, p. 239-245, DEC 2014.
• Citações Web of Science: 16

Resumo

Aquatic ecosystems are the main receptors of toxic substances from human activities. With the increase in sugar cane production, vinasse - the main residue of ethanol production - is a potential contaminant of water resources, due to its high organic matter content. This study was aimed at evaluating the toxicity of vinasse by examining the liver of the fish Oreochromis niloticus exposed to different dilutions of sugar cane vinasse (1%, 2%, 5%, 5% and 10%) in laboratory bioassays. Portions of liver were collected and fixed for histological and histochemical techniques to detect total proteins, polysaccharides and lipids. In the histological analysis, the groups treated with vinasse exhibited significant alterations, such as loss of cytoplasmic integrity, loss of cell limit and tissue disorganization. Protein and lipid profiles were not altered. Higher accumulation of polysaccharides was detected in fish exposed to lower concentrations of vinasse, with a gradual decrease in animals treated with vinasse in higher concentrations. We concluded that vinasse has a dose-dependent toxic and cytotoxic potential in water bodies and that the liver is strongly affected when acutely exposed to this contaminant. (C) 2014 Elsevier Inc. All rights reserved. (AU)

• Processo FAPESP: 11/06749-8 - Avaliação da toxicidade da vinhaça utilizando Oreochromis niloticus (Perciformes: Cichlidae) como organismo-teste.
• Beneficiário: Jorge Evangelista Correia
• Modalidade de apoio: Bolsas no Brasil - Iniciação Científica
• Processo FAPESP: 11/06845-7 - Avaliação da toxicidade da vinhaça por meio da análise histológica de fígados de peixes Oreochromis niloticus (Perciformes: Cichlidae)
• Beneficiário: Julia Fernanda Urbano Marinho
• Modalidade de apoio: Bolsas no Brasil - Iniciação Científica
• Processo FAPESP: 12/50197-2 - Ação de produtos empregados no cultivo da cana-de-açúcar sobre organismos não alvos
• Beneficiário: Carmem Silvia Fontanetti Christofoletti
• Modalidade de apoio: Auxílio à Pesquisa - Programa BIOEN - Temático