Condensed Tannins from the bark of Guazuma ulmifolia Lam. (Sterculiaceae)

Detalhes bibliográficos
Autor(a) principal: Lopes,Gisely C.
Data de Publicação: 2009
Outros Autores: Rocha,Juliana C. B., Almeida,Glalber C. de, Mello,João C. P. de
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Journal of the Brazilian Chemical Society (Online)
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-50532009000600016
Resumo: From the bark of Guazuma ulmifolia Lam. (Sterculiaceae), nine compounds were isolated and identified: ent-catechin, epicatechin, ent-gallocatechin, epigallocatechin, epiafzelechin-(4β→8)-epicatechin, epicatechin-(4β→8)-catechin (procyanidin B1), epicatechin-(4β→8)-epicatechin (procyanidin B2), epicatechin-(4β→8)-epigallocatechin, and the new compound 4'-O-methyl-epiafzelechin. Their structures were elucidated on the basis of spectral and literature data. HPLC fingerprint analysis of the semipurified extract was performed on a C18 column, with a mixture of acetonitrile (0.05% trifluoroacetic acid):water (0.05% trifluoroacetic acid) (v/v) with a flow rate of 0.8 mL min-1. The sample injection volume was 100 µL and the wavelength was 210 nm.
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spelling Condensed Tannins from the bark of Guazuma ulmifolia Lam. (Sterculiaceae)Guazuma ulmifoliacondensed tanninsHPLCfingerprintFrom the bark of Guazuma ulmifolia Lam. (Sterculiaceae), nine compounds were isolated and identified: ent-catechin, epicatechin, ent-gallocatechin, epigallocatechin, epiafzelechin-(4β→8)-epicatechin, epicatechin-(4β→8)-catechin (procyanidin B1), epicatechin-(4β→8)-epicatechin (procyanidin B2), epicatechin-(4β→8)-epigallocatechin, and the new compound 4'-O-methyl-epiafzelechin. Their structures were elucidated on the basis of spectral and literature data. HPLC fingerprint analysis of the semipurified extract was performed on a C18 column, with a mixture of acetonitrile (0.05% trifluoroacetic acid):water (0.05% trifluoroacetic acid) (v/v) with a flow rate of 0.8 mL min-1. The sample injection volume was 100 µL and the wavelength was 210 nm.Sociedade Brasileira de Química2009-01-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-50532009000600016Journal of the Brazilian Chemical Society v.20 n.6 2009reponame:Journal of the Brazilian Chemical Society (Online)instname:Sociedade Brasileira de Química (SBQ)instacron:SBQ10.1590/S0103-50532009000600016info:eu-repo/semantics/openAccessLopes,Gisely C.Rocha,Juliana C. B.Almeida,Glalber C. deMello,João C. P. deeng2009-08-04T00:00:00Zoai:scielo:S0103-50532009000600016Revistahttp://jbcs.sbq.org.brONGhttps://old.scielo.br/oai/scielo-oai.php||office@jbcs.sbq.org.br1678-47900103-5053opendoar:2009-08-04T00:00Journal of the Brazilian Chemical Society (Online) - Sociedade Brasileira de Química (SBQ)false
dc.title.none.fl_str_mv Condensed Tannins from the bark of Guazuma ulmifolia Lam. (Sterculiaceae)
title Condensed Tannins from the bark of Guazuma ulmifolia Lam. (Sterculiaceae)
spellingShingle Condensed Tannins from the bark of Guazuma ulmifolia Lam. (Sterculiaceae)
Lopes,Gisely C.
Guazuma ulmifolia
condensed tannins
HPLC
fingerprint
title_short Condensed Tannins from the bark of Guazuma ulmifolia Lam. (Sterculiaceae)
title_full Condensed Tannins from the bark of Guazuma ulmifolia Lam. (Sterculiaceae)
title_fullStr Condensed Tannins from the bark of Guazuma ulmifolia Lam. (Sterculiaceae)
title_full_unstemmed Condensed Tannins from the bark of Guazuma ulmifolia Lam. (Sterculiaceae)
title_sort Condensed Tannins from the bark of Guazuma ulmifolia Lam. (Sterculiaceae)
author Lopes,Gisely C.
author_facet Lopes,Gisely C.
Rocha,Juliana C. B.
Almeida,Glalber C. de
Mello,João C. P. de
author_role author
author2 Rocha,Juliana C. B.
Almeida,Glalber C. de
Mello,João C. P. de
author2_role author
author
author
dc.contributor.author.fl_str_mv Lopes,Gisely C.
Rocha,Juliana C. B.
Almeida,Glalber C. de
Mello,João C. P. de
dc.subject.por.fl_str_mv Guazuma ulmifolia
condensed tannins
HPLC
fingerprint
topic Guazuma ulmifolia
condensed tannins
HPLC
fingerprint
description From the bark of Guazuma ulmifolia Lam. (Sterculiaceae), nine compounds were isolated and identified: ent-catechin, epicatechin, ent-gallocatechin, epigallocatechin, epiafzelechin-(4β→8)-epicatechin, epicatechin-(4β→8)-catechin (procyanidin B1), epicatechin-(4β→8)-epicatechin (procyanidin B2), epicatechin-(4β→8)-epigallocatechin, and the new compound 4'-O-methyl-epiafzelechin. Their structures were elucidated on the basis of spectral and literature data. HPLC fingerprint analysis of the semipurified extract was performed on a C18 column, with a mixture of acetonitrile (0.05% trifluoroacetic acid):water (0.05% trifluoroacetic acid) (v/v) with a flow rate of 0.8 mL min-1. The sample injection volume was 100 µL and the wavelength was 210 nm.
publishDate 2009
dc.date.none.fl_str_mv 2009-01-01
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-50532009000600016
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-50532009000600016
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/S0103-50532009000600016
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv text/html
dc.publisher.none.fl_str_mv Sociedade Brasileira de Química
publisher.none.fl_str_mv Sociedade Brasileira de Química
dc.source.none.fl_str_mv Journal of the Brazilian Chemical Society v.20 n.6 2009
reponame:Journal of the Brazilian Chemical Society (Online)
instname:Sociedade Brasileira de Química (SBQ)
instacron:SBQ
instname_str Sociedade Brasileira de Química (SBQ)
instacron_str SBQ
institution SBQ
reponame_str Journal of the Brazilian Chemical Society (Online)
collection Journal of the Brazilian Chemical Society (Online)
repository.name.fl_str_mv Journal of the Brazilian Chemical Society (Online) - Sociedade Brasileira de Química (SBQ)
repository.mail.fl_str_mv ||office@jbcs.sbq.org.br
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