Decomposition of five phenolic compounds in high temperature water
Autor(a) principal: | |
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Data de Publicação: | 2014 |
Outros Autores: | , , , , |
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=S0103-50532014001100023 |
Resumo: | In this work, the stability of five phenolic compounds (catechol, protocatechualdehyde, salvianic acid A, protocatechuic acid, and ferulaic acid) under high temperature water was investigated. The effects of two main factors on the stability experiments, such as temperature and time, were investigated. The decomposition of three phenolic acid compounds (salvianic A, protocatechuic, and ferulaic acids) increased with rising temperature and the acids became less stable with longer heating time. The three phenolic acid compounds showed very minor decomposition at 200 ºC and their complete decomposition was observed at 300-350 ºC. The decomposition products of salvianic acid A, protocatechuic acid, and ferulaic acid were characterized and quantified by high performance liquid chromatography (HPLC) and further confirmed by high performance liquid chromatography/mass spectrometry (HPLC/MS). Salvianic acid A, protocatechuic acid, and ferulaic acid in high temperature water mainly underwent decarboxylation reaction to form 4-ethylcatechol, catechol, and 2-methoxy-4-vinylphenol, respectively. However, catechol and protocatechualdehyde almost remained stable even at temperatures up to 350 ºC. Reaction temperature and time showed relatively little effect on the decomposition of catechol and protocatechualdehyde. These results demonstrated that through adjusting the temperature or time, the extraction of phenolic compounds can be controlled. |
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Decomposition of five phenolic compounds in high temperature waterphenolic compoundshigh temperature waterHPLC/MSdecompositionIn this work, the stability of five phenolic compounds (catechol, protocatechualdehyde, salvianic acid A, protocatechuic acid, and ferulaic acid) under high temperature water was investigated. The effects of two main factors on the stability experiments, such as temperature and time, were investigated. The decomposition of three phenolic acid compounds (salvianic A, protocatechuic, and ferulaic acids) increased with rising temperature and the acids became less stable with longer heating time. The three phenolic acid compounds showed very minor decomposition at 200 ºC and their complete decomposition was observed at 300-350 ºC. The decomposition products of salvianic acid A, protocatechuic acid, and ferulaic acid were characterized and quantified by high performance liquid chromatography (HPLC) and further confirmed by high performance liquid chromatography/mass spectrometry (HPLC/MS). Salvianic acid A, protocatechuic acid, and ferulaic acid in high temperature water mainly underwent decarboxylation reaction to form 4-ethylcatechol, catechol, and 2-methoxy-4-vinylphenol, respectively. However, catechol and protocatechualdehyde almost remained stable even at temperatures up to 350 ºC. Reaction temperature and time showed relatively little effect on the decomposition of catechol and protocatechualdehyde. These results demonstrated that through adjusting the temperature or time, the extraction of phenolic compounds can be controlled.Sociedade Brasileira de Química2014-11-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-50532014001100023Journal of the Brazilian Chemical Society v.25 n.11 2014reponame:Journal of the Brazilian Chemical Society (Online)instname:Sociedade Brasileira de Química (SBQ)instacron:SBQ10.5935/0103-5053.20140201info:eu-repo/semantics/openAccessCheng,YanXu,QingzhongLiu,JingZhao,ChangshengXue,FuminZhao,Yuzhongeng2014-11-13T00:00:00Zoai:scielo:S0103-50532014001100023Revistahttp://jbcs.sbq.org.brONGhttps://old.scielo.br/oai/scielo-oai.php||office@jbcs.sbq.org.br1678-47900103-5053opendoar:2014-11-13T00:00Journal of the Brazilian Chemical Society (Online) - Sociedade Brasileira de Química (SBQ)false |
dc.title.none.fl_str_mv |
Decomposition of five phenolic compounds in high temperature water |
title |
Decomposition of five phenolic compounds in high temperature water |
spellingShingle |
Decomposition of five phenolic compounds in high temperature water Cheng,Yan phenolic compounds high temperature water HPLC/MS decomposition |
title_short |
Decomposition of five phenolic compounds in high temperature water |
title_full |
Decomposition of five phenolic compounds in high temperature water |
title_fullStr |
Decomposition of five phenolic compounds in high temperature water |
title_full_unstemmed |
Decomposition of five phenolic compounds in high temperature water |
title_sort |
Decomposition of five phenolic compounds in high temperature water |
author |
Cheng,Yan |
author_facet |
Cheng,Yan Xu,Qingzhong Liu,Jing Zhao,Changsheng Xue,Fumin Zhao,Yuzhong |
author_role |
author |
author2 |
Xu,Qingzhong Liu,Jing Zhao,Changsheng Xue,Fumin Zhao,Yuzhong |
author2_role |
author author author author author |
dc.contributor.author.fl_str_mv |
Cheng,Yan Xu,Qingzhong Liu,Jing Zhao,Changsheng Xue,Fumin Zhao,Yuzhong |
dc.subject.por.fl_str_mv |
phenolic compounds high temperature water HPLC/MS decomposition |
topic |
phenolic compounds high temperature water HPLC/MS decomposition |
description |
In this work, the stability of five phenolic compounds (catechol, protocatechualdehyde, salvianic acid A, protocatechuic acid, and ferulaic acid) under high temperature water was investigated. The effects of two main factors on the stability experiments, such as temperature and time, were investigated. The decomposition of three phenolic acid compounds (salvianic A, protocatechuic, and ferulaic acids) increased with rising temperature and the acids became less stable with longer heating time. The three phenolic acid compounds showed very minor decomposition at 200 ºC and their complete decomposition was observed at 300-350 ºC. The decomposition products of salvianic acid A, protocatechuic acid, and ferulaic acid were characterized and quantified by high performance liquid chromatography (HPLC) and further confirmed by high performance liquid chromatography/mass spectrometry (HPLC/MS). Salvianic acid A, protocatechuic acid, and ferulaic acid in high temperature water mainly underwent decarboxylation reaction to form 4-ethylcatechol, catechol, and 2-methoxy-4-vinylphenol, respectively. However, catechol and protocatechualdehyde almost remained stable even at temperatures up to 350 ºC. Reaction temperature and time showed relatively little effect on the decomposition of catechol and protocatechualdehyde. These results demonstrated that through adjusting the temperature or time, the extraction of phenolic compounds can be controlled. |
publishDate |
2014 |
dc.date.none.fl_str_mv |
2014-11-01 |
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=S0103-50532014001100023 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-50532014001100023 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
10.5935/0103-5053.20140201 |
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.25 n.11 2014 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 |
_version_ |
1750318176574373888 |