ANTIOXIDANT NAPHTHOQUINONES OF Sinningia reitzii FROM SANTA CATARINA STATE, BRAZIL

Detalhes bibliográficos
Autor(a) principal: Winiewski,Vanessa
Data de Publicação: 2021
Outros Autores: Silva,Adson S., Alvarez,Kattleen D. C., Sá,Eduardo L. de, Salvador,Marcos J., Stefanello,Maria Élida A.
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Química Nova (Online)
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422021000300284
Resumo: Sinningia reitzii (Hoehne) L. E. Skog (Gesneriaceae) is a subshrub native to Brazil, where it is distributed in two disjunctive populations around the 26°S and 23°S parallels. In this work, tubers of plants from the wild population growing at the 26°S parallel (Santa Catarina state) yielded two new naphthoquinones, 5,6-dihydroxy-7-methoxy-a-dunnione and 8-hydroxy-6,7-dimethoxy-a-dunnione. Three known compounds were also isolated: 6,8-dihydroxy-7-methoxy-a-dunnione, 5-hydroxy-6,7-dimethoxy-a-dunnione, and 6,8-dihydroxy-7-methoxy-2-O-methyldunniol. The naphthoquinones 6,8-dihydroxy-7-methoxy-2-O-methyldunniol, 6,8-dihydroxy-7-methoxy-a-dunnione, and 5,6-dihydroxy-7-methoxy-a-dunnione displayed antioxidant activity in the ORAC-FL method, with values of relative trolox equivalent in the range of 1.39-4.83 mmol g-1.
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spelling ANTIOXIDANT NAPHTHOQUINONES OF Sinningia reitzii FROM SANTA CATARINA STATE, BRAZILGesneriaceaeSinningia reitziinaphthoquinonesantioxidant activitySinningia reitzii (Hoehne) L. E. Skog (Gesneriaceae) is a subshrub native to Brazil, where it is distributed in two disjunctive populations around the 26°S and 23°S parallels. In this work, tubers of plants from the wild population growing at the 26°S parallel (Santa Catarina state) yielded two new naphthoquinones, 5,6-dihydroxy-7-methoxy-a-dunnione and 8-hydroxy-6,7-dimethoxy-a-dunnione. Three known compounds were also isolated: 6,8-dihydroxy-7-methoxy-a-dunnione, 5-hydroxy-6,7-dimethoxy-a-dunnione, and 6,8-dihydroxy-7-methoxy-2-O-methyldunniol. The naphthoquinones 6,8-dihydroxy-7-methoxy-2-O-methyldunniol, 6,8-dihydroxy-7-methoxy-a-dunnione, and 5,6-dihydroxy-7-methoxy-a-dunnione displayed antioxidant activity in the ORAC-FL method, with values of relative trolox equivalent in the range of 1.39-4.83 mmol g-1.Sociedade Brasileira de Química2021-03-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422021000300284Química Nova v.44 n.3 2021reponame:Química Nova (Online)instname:Sociedade Brasileira de Química (SBQ)instacron:SBQ10.21577/0100-4042.20170682info:eu-repo/semantics/openAccessWiniewski,VanessaSilva,Adson S.Alvarez,Kattleen D. C.Sá,Eduardo L. deSalvador,Marcos J.Stefanello,Maria Élida A.eng2021-05-21T00:00:00Zoai:scielo:S0100-40422021000300284Revistahttps://www.scielo.br/j/qn/ONGhttps://old.scielo.br/oai/scielo-oai.phpquimicanova@sbq.org.br1678-70640100-4042opendoar:2021-05-21T00:00Química Nova (Online) - Sociedade Brasileira de Química (SBQ)false
dc.title.none.fl_str_mv ANTIOXIDANT NAPHTHOQUINONES OF Sinningia reitzii FROM SANTA CATARINA STATE, BRAZIL
title ANTIOXIDANT NAPHTHOQUINONES OF Sinningia reitzii FROM SANTA CATARINA STATE, BRAZIL
spellingShingle ANTIOXIDANT NAPHTHOQUINONES OF Sinningia reitzii FROM SANTA CATARINA STATE, BRAZIL
Winiewski,Vanessa
Gesneriaceae
Sinningia reitzii
naphthoquinones
antioxidant activity
title_short ANTIOXIDANT NAPHTHOQUINONES OF Sinningia reitzii FROM SANTA CATARINA STATE, BRAZIL
title_full ANTIOXIDANT NAPHTHOQUINONES OF Sinningia reitzii FROM SANTA CATARINA STATE, BRAZIL
title_fullStr ANTIOXIDANT NAPHTHOQUINONES OF Sinningia reitzii FROM SANTA CATARINA STATE, BRAZIL
title_full_unstemmed ANTIOXIDANT NAPHTHOQUINONES OF Sinningia reitzii FROM SANTA CATARINA STATE, BRAZIL
title_sort ANTIOXIDANT NAPHTHOQUINONES OF Sinningia reitzii FROM SANTA CATARINA STATE, BRAZIL
author Winiewski,Vanessa
author_facet Winiewski,Vanessa
Silva,Adson S.
Alvarez,Kattleen D. C.
Sá,Eduardo L. de
Salvador,Marcos J.
Stefanello,Maria Élida A.
author_role author
author2 Silva,Adson S.
Alvarez,Kattleen D. C.
Sá,Eduardo L. de
Salvador,Marcos J.
Stefanello,Maria Élida A.
author2_role author
author
author
author
author
dc.contributor.author.fl_str_mv Winiewski,Vanessa
Silva,Adson S.
Alvarez,Kattleen D. C.
Sá,Eduardo L. de
Salvador,Marcos J.
Stefanello,Maria Élida A.
dc.subject.por.fl_str_mv Gesneriaceae
Sinningia reitzii
naphthoquinones
antioxidant activity
topic Gesneriaceae
Sinningia reitzii
naphthoquinones
antioxidant activity
description Sinningia reitzii (Hoehne) L. E. Skog (Gesneriaceae) is a subshrub native to Brazil, where it is distributed in two disjunctive populations around the 26°S and 23°S parallels. In this work, tubers of plants from the wild population growing at the 26°S parallel (Santa Catarina state) yielded two new naphthoquinones, 5,6-dihydroxy-7-methoxy-a-dunnione and 8-hydroxy-6,7-dimethoxy-a-dunnione. Three known compounds were also isolated: 6,8-dihydroxy-7-methoxy-a-dunnione, 5-hydroxy-6,7-dimethoxy-a-dunnione, and 6,8-dihydroxy-7-methoxy-2-O-methyldunniol. The naphthoquinones 6,8-dihydroxy-7-methoxy-2-O-methyldunniol, 6,8-dihydroxy-7-methoxy-a-dunnione, and 5,6-dihydroxy-7-methoxy-a-dunnione displayed antioxidant activity in the ORAC-FL method, with values of relative trolox equivalent in the range of 1.39-4.83 mmol g-1.
publishDate 2021
dc.date.none.fl_str_mv 2021-03-01
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=S0100-40422021000300284
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422021000300284
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.21577/0100-4042.20170682
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 Química Nova v.44 n.3 2021
reponame:Química Nova (Online)
instname:Sociedade Brasileira de Química (SBQ)
instacron:SBQ
instname_str Sociedade Brasileira de Química (SBQ)
instacron_str SBQ
institution SBQ
reponame_str Química Nova (Online)
collection Química Nova (Online)
repository.name.fl_str_mv Química Nova (Online) - Sociedade Brasileira de Química (SBQ)
repository.mail.fl_str_mv quimicanova@sbq.org.br
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