Evaluation of specific gravity of Giardia duodenalis and E. coli cysts

Detalhes bibliográficos
Autor(a) principal: Moitinho, Maria da Luz Ribeiro
Data de Publicação: 1992
Outros Autores: Ferreira, Cláudio Santos
Tipo de documento: Artigo
Idioma: por
Título da fonte: Revista do Instituto de Medicina Tropical de São Paulo
Texto Completo: https://www.revistas.usp.br/rimtsp/article/view/28957
Resumo: Cysts of Giardia duodenalis and Entamoeba coli were observed as for flotability in sucrose solutions of different specific gravity, contained in counting-chambers of 0.17 mm height. The cysts that floated and those that sedimented were counted and then calculated the respective percentage. Flotability differences of the cysts of each species were not considerable. Solutions of specific gravity 1,200 kg/m³ made 88.49% of G. duodenalis cysts and 95.71% of E. coli cysts float. The greater values of flotability were associated to specific gravity 1,250 kg/m³ and were 89.15% and 98.59% for cysts of G. duodenalis and E. coli, respectively.
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spelling Evaluation of specific gravity of Giardia duodenalis and E. coli cysts Avaliação de massas específicas de cistos de Giardia duodenalis e Entamoeba coli Flutuabilidade de cistos de protozoáriosCoproscopia parasitológicaGiardia duodenalisEntamoeba coli Cysts of Giardia duodenalis and Entamoeba coli were observed as for flotability in sucrose solutions of different specific gravity, contained in counting-chambers of 0.17 mm height. The cysts that floated and those that sedimented were counted and then calculated the respective percentage. Flotability differences of the cysts of each species were not considerable. Solutions of specific gravity 1,200 kg/m³ made 88.49% of G. duodenalis cysts and 95.71% of E. coli cysts float. The greater values of flotability were associated to specific gravity 1,250 kg/m³ and were 89.15% and 98.59% for cysts of G. duodenalis and E. coli, respectively. Cistos de Giardia duodenalis e Entamoeba coli foram observados quanto à flutuação em soluções de sacarose de massas específicas diversas (1.040, 1.050, 1.060, 1.070,1.080,1.090,1.100, 1.150,1.200 e 1.250 kg/m³), contidas em câmaras de contagem de 0,17 mm de altura. Contaram-se os cistos que flutuaram e os que sedimentaram tendo sido calculadas as porcentagens respectivas. As diferenças de flutuabilidade dos cistos de cada uma das espécies não foram consideráveis. Soluções de massa específica igual a 1.200 kg/m³ fizeram flutuar 88,49% dos cistos de G. duodenalis e 95,71% dos de E. coli. Os maiores valores de flutuabilidade estiveram associados à massa específica 1.250 kg/m³ e foram, respectivamente, 89,15% e 98,59% para cistos de G. duodenalis e de E. coli. Universidade de São Paulo. Instituto de Medicina Tropical de São Paulo1992-10-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://www.revistas.usp.br/rimtsp/article/view/28957Revista do Instituto de Medicina Tropical de São Paulo; Vol. 34 No. 5 (1992); 395-397 Revista do Instituto de Medicina Tropical de São Paulo; Vol. 34 Núm. 5 (1992); 395-397 Revista do Instituto de Medicina Tropical de São Paulo; v. 34 n. 5 (1992); 395-397 1678-99460036-4665reponame:Revista do Instituto de Medicina Tropical de São Pauloinstname:Instituto de Medicina Tropical (IMT)instacron:IMTporhttps://www.revistas.usp.br/rimtsp/article/view/28957/30814Copyright (c) 2018 Revista do Instituto de Medicina Tropical de São Pauloinfo:eu-repo/semantics/openAccessMoitinho, Maria da Luz RibeiroFerreira, Cláudio Santos2012-07-02T01:33:32Zoai:revistas.usp.br:article/28957Revistahttp://www.revistas.usp.br/rimtsp/indexPUBhttps://www.revistas.usp.br/rimtsp/oai||revimtsp@usp.br1678-99460036-4665opendoar:2022-12-13T16:50:43.290522Revista do Instituto de Medicina Tropical de São Paulo - Instituto de Medicina Tropical (IMT)true
dc.title.none.fl_str_mv Evaluation of specific gravity of Giardia duodenalis and E. coli cysts
Avaliação de massas específicas de cistos de Giardia duodenalis e Entamoeba coli
title Evaluation of specific gravity of Giardia duodenalis and E. coli cysts
spellingShingle Evaluation of specific gravity of Giardia duodenalis and E. coli cysts
Moitinho, Maria da Luz Ribeiro
Flutuabilidade de cistos de protozoários
Coproscopia parasitológica
Giardia duodenalis
Entamoeba coli
title_short Evaluation of specific gravity of Giardia duodenalis and E. coli cysts
title_full Evaluation of specific gravity of Giardia duodenalis and E. coli cysts
title_fullStr Evaluation of specific gravity of Giardia duodenalis and E. coli cysts
title_full_unstemmed Evaluation of specific gravity of Giardia duodenalis and E. coli cysts
title_sort Evaluation of specific gravity of Giardia duodenalis and E. coli cysts
author Moitinho, Maria da Luz Ribeiro
author_facet Moitinho, Maria da Luz Ribeiro
Ferreira, Cláudio Santos
author_role author
author2 Ferreira, Cláudio Santos
author2_role author
dc.contributor.author.fl_str_mv Moitinho, Maria da Luz Ribeiro
Ferreira, Cláudio Santos
dc.subject.por.fl_str_mv Flutuabilidade de cistos de protozoários
Coproscopia parasitológica
Giardia duodenalis
Entamoeba coli
topic Flutuabilidade de cistos de protozoários
Coproscopia parasitológica
Giardia duodenalis
Entamoeba coli
description Cysts of Giardia duodenalis and Entamoeba coli were observed as for flotability in sucrose solutions of different specific gravity, contained in counting-chambers of 0.17 mm height. The cysts that floated and those that sedimented were counted and then calculated the respective percentage. Flotability differences of the cysts of each species were not considerable. Solutions of specific gravity 1,200 kg/m³ made 88.49% of G. duodenalis cysts and 95.71% of E. coli cysts float. The greater values of flotability were associated to specific gravity 1,250 kg/m³ and were 89.15% and 98.59% for cysts of G. duodenalis and E. coli, respectively.
publishDate 1992
dc.date.none.fl_str_mv 1992-10-01
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv https://www.revistas.usp.br/rimtsp/article/view/28957
url https://www.revistas.usp.br/rimtsp/article/view/28957
dc.language.iso.fl_str_mv por
language por
dc.relation.none.fl_str_mv https://www.revistas.usp.br/rimtsp/article/view/28957/30814
dc.rights.driver.fl_str_mv Copyright (c) 2018 Revista do Instituto de Medicina Tropical de São Paulo
info:eu-repo/semantics/openAccess
rights_invalid_str_mv Copyright (c) 2018 Revista do Instituto de Medicina Tropical de São Paulo
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Universidade de São Paulo. Instituto de Medicina Tropical de São Paulo
publisher.none.fl_str_mv Universidade de São Paulo. Instituto de Medicina Tropical de São Paulo
dc.source.none.fl_str_mv Revista do Instituto de Medicina Tropical de São Paulo; Vol. 34 No. 5 (1992); 395-397
Revista do Instituto de Medicina Tropical de São Paulo; Vol. 34 Núm. 5 (1992); 395-397
Revista do Instituto de Medicina Tropical de São Paulo; v. 34 n. 5 (1992); 395-397
1678-9946
0036-4665
reponame:Revista do Instituto de Medicina Tropical de São Paulo
instname:Instituto de Medicina Tropical (IMT)
instacron:IMT
instname_str Instituto de Medicina Tropical (IMT)
instacron_str IMT
institution IMT
reponame_str Revista do Instituto de Medicina Tropical de São Paulo
collection Revista do Instituto de Medicina Tropical de São Paulo
repository.name.fl_str_mv Revista do Instituto de Medicina Tropical de São Paulo - Instituto de Medicina Tropical (IMT)
repository.mail.fl_str_mv ||revimtsp@usp.br
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