Consulta: subjectFacets:"Hexachlorobenzene"
Registros recuperados: 3
Data/hora: 10/06/2024 09:15:22

Organochlorine pesticides residues in commercial milk: a systematic review
Provedor de dados: 109
Autores: Régo,Isabella Clarissa Vasconcelos; Santos,Greice Nara Viana dos; Santos,Greice Nivea Viana dos; Ribeiro,Joseph Simoes; Lopes,Ruy Bessa; Santos,Soraia Baia dos; Sousa,Alessandra de; Mendes,Rosivaldo de Alcántara; Taketomi,Aliza Thieko Fernandes; Vasconcelos,Arthur Abinader; Taube.,Paulo Sérgio.
Abstract Milk is a very important food for human consumption, mainly due to its content of fat, protein, vitamins and minerals. However, the use of organochlorine pesticides (OCP) for decades has contaminated the soil, water and air, and thus has also contaminated the milk. In this sense, in the present work a review of scientific articles was carried out, between the years 2000 and 2018, related to the evaluation of the degree of contamination of different types of milk by OCPs in different regions of the world. As a result, it was observed that although OCPs have been banned for use in agriculture since the 1980s, these compounds or their metabolites have still been detected in many samples, and in some cases the levels were above the maximum allowed by...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: DDT metabolites; Persistent organic pollutants; Hexachlorobenzene; Cyclodienes; Chlorinated hydrocarbons.
Ano: 2019
URL: http://www.scielo.org.co/scielo.php?script=sci_arttext&pid=S0120-28122019000200099

The decrease in uroporphyrinogen decarboxylase activity induced by ethanol predisposes rats to the development of porphyria and accelerates xenobiotic-triggered porphyria, regardless of hepatic damage
Provedor de dados: 56
Autores: Ríos de Molina,M.C.; Mazzetti,M.B.; Galigniana,M.; Aldonatti,C.; Tomio,J.M.; San Martín de Viale,L.C.
We evaluated the porphyrinogenic ability of ethanol (20% in drinking water) per se, its effect on the development of sporadic porphyria cutanea tarda induced by hexachlorobenzene in female Wistar rats (170-190 g, N = 8/group), and the relationship with hepatic damage. Twenty-five percent of the animals receiving ethanol increased up to 14-, 25-, and 4.5-fold the urinary excretion of delta-aminolevulinate, porphobilinogen, and porphyrins, respectively. Ethanol exacerbated the precursor excretions elicited by hexachlorobenzene. Hepatic porphyrin levels increased by hexachlorobenzene treatment, while this parameter only increased (up to 90-fold) in some of the animals that received ethanol alone. Ethanol reduced the activities of uroporphyrinogen...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Alcoholism; Ethanol; Heme metabolic pathway; Hepatic damage; Hexachlorobenzene; Porphyria cutanea tarda.
Ano: 2002
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2002001100004

Ligninolytic enzymes production and Remazol brilliant blue R decolorization by tropical brazilian basidiomycetes fungi
Provedor de dados: 58
Autores: Machado,Kátia M. G.; Matheus,Dácio R.; Bononi,Vera L. R.
Remazol Brilliant Blue R (RBBR) dye was used as substrate to evaluate ligninolytic activity in 125 basidiomycetous fungi isolated from tropical ecosystems. The extracellular RBBR decolorizing activity produced when selected fungi were grown in solid media and in soil contaminated with organochlorines was also evaluated. A total of 106 fungi decolorized the RBBR during the growth in malt extract agar (MEA, 2%); 96 fungi showed a mycelia growth and decolorization activity stronger than the P. chrysosporium used as reference. Extracellular extracts of 35 selected fungi grown on solid medium with sugar cane bagasse (BGS) were evaluated for RBBR decolorization and peroxidase activity. All fungi showed peroxidase activities, but 5 of those were unable to...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: White rot fungi; Peroxidases; Laccase; MnP; Pentachlorophenol; Hexachlorobenzene.
Ano: 2005
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822005000300008