Bulletin of Environmental Contamination and Toxicology

Autor: Cruz, Andréa Cristina Santos da, Leite, Maria Bernadete Neiva Lemos, Rodrigues, Luiz Erlon Araújo, Nascimento, Iracema Andrade
Jazyk: angličtina
Rok vydání: 2012
Předmět:
Zdroj: Repositório Institucional da UFBA
Universidade Federal da Bahia (UFBA)
instacron:UFBA
DOI: 10.1007/s00128-012-0707-7
Popis: Texto completo: acesso restrito. p.219-224 Submitted by Edileide Reis (leyde-landy@hotmail.com) on 2015-03-03T11:57:00Z No. of bitstreams: 1 7-Bull Environ Contam Toxicol 89 p. 2019-2024, 2012.pdf: 3368148 bytes, checksum: b590132114f87c03d23b57ca1c03b1ae (MD5) Approved for entry into archive by Alda Lima da Silva (sivalda@ufba.br) on 2015-03-03T14:15:24Z (GMT) No. of bitstreams: 1 7-Bull Environ Contam Toxicol 89 p. 2019-2024, 2012.pdf: 3368148 bytes, checksum: b590132114f87c03d23b57ca1c03b1ae (MD5) Made available in DSpace on 2015-03-03T14:15:24Z (GMT). No. of bitstreams: 1 7-Bull Environ Contam Toxicol 89 p. 2019-2024, 2012.pdf: 3368148 bytes, checksum: b590132114f87c03d23b57ca1c03b1ae (MD5) Previous issue date: 2012 Biodiesel is promoted as environmentally less harmful than diesel fuel. Nevertheless its water-soluble-fraction (WSF) may contain methanol, which appears by a reversion of the transesterification reaction, when biodiesel contacts water. This paper evaluated the loss of the lysosomal membrane integrity in liver homogenate of juvenils Tilapia exposed to biodiesels-WSF, through the increase of the acid phosphatase activity, as an evidence of citotoxicity. Differences in the enzyme activity levels (3.4, 2.3 and 0.8 mU mg−1 total protein over the control value, which was 1.6 mU mg−1 total protein), found for castor oil, waste cooking-oil and palm oil-biodiesels, respectively, were indicative of their toxicity according to this decreasing trend. WSF-chromatograms suggest the cytotoxicity as related to methanol.
Databáze: OpenAIRE