Determination of nitrate in lettuce by ion chromatography after microwave water extraction.

Detalhes bibliográficos
Autor(a) principal: NOVAES, H. B.
Data de Publicação: 2009
Outros Autores: VAITSMAN, D. S., DUTRA, P. B., PEREZ, D. V.
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice)
Texto Completo: http://www.alice.cnptia.embrapa.br/alice/handle/doc/697117
https://doi.org/10.1590/S0100-40422009000600049
Resumo: Lettuce is worldwide known as the most important vegetable. In this context, most farmers are searching new techniques for best quality products including hydropony. However, nitrate is of great concern, since it has a negative impact on human metabolism. The main objective of the present work was to evaluate the nitrate content of lettuce produced by conventional and hydroponic systems. The determination was conducted by ion chromatography and a new method of extraction was tested using microwave oven digestion. The results indicated that nitrate level produced in the conventional system was lower than in the hydroponic system.
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spelling Determination of nitrate in lettuce by ion chromatography after microwave water extraction.ChromatrographyCromatografiaLettuce is worldwide known as the most important vegetable. In this context, most farmers are searching new techniques for best quality products including hydropony. However, nitrate is of great concern, since it has a negative impact on human metabolism. The main objective of the present work was to evaluate the nitrate content of lettuce produced by conventional and hydroponic systems. The determination was conducted by ion chromatography and a new method of extraction was tested using microwave oven digestion. The results indicated that nitrate level produced in the conventional system was lower than in the hydroponic system.HUMBERTO BREVILATO NOVAES, UFRJ; DELMO SANTIAGO VAITSMAN, UFRJ; PAULO BECHARA DUTRA, UFRJ; DANIEL VIDAL PEREZ, CNPS.NOVAES, H. B.VAITSMAN, D. S.DUTRA, P. B.PEREZ, D. V.2018-10-24T00:35:00Z2018-10-24T00:35:00Z2010-04-2020092018-10-24T00:35:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleQuímica Nova, São Paulo, v. 32, n. 6, p. 1647-1650, 2009.http://www.alice.cnptia.embrapa.br/alice/handle/doc/697117https://doi.org/10.1590/S0100-40422009000600049enginfo:eu-repo/semantics/openAccessreponame:Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice)instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa)instacron:EMBRAPA2018-10-24T00:35:06Zoai:www.alice.cnptia.embrapa.br:doc/697117Repositório InstitucionalPUBhttps://www.alice.cnptia.embrapa.br/oai/requestopendoar:21542018-10-24T00:35:06falseRepositório InstitucionalPUBhttps://www.alice.cnptia.embrapa.br/oai/requestcg-riaa@embrapa.bropendoar:21542018-10-24T00:35:06Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa)false
dc.title.none.fl_str_mv Determination of nitrate in lettuce by ion chromatography after microwave water extraction.
title Determination of nitrate in lettuce by ion chromatography after microwave water extraction.
spellingShingle Determination of nitrate in lettuce by ion chromatography after microwave water extraction.
NOVAES, H. B.
Chromatrography
Cromatografia
title_short Determination of nitrate in lettuce by ion chromatography after microwave water extraction.
title_full Determination of nitrate in lettuce by ion chromatography after microwave water extraction.
title_fullStr Determination of nitrate in lettuce by ion chromatography after microwave water extraction.
title_full_unstemmed Determination of nitrate in lettuce by ion chromatography after microwave water extraction.
title_sort Determination of nitrate in lettuce by ion chromatography after microwave water extraction.
author NOVAES, H. B.
author_facet NOVAES, H. B.
VAITSMAN, D. S.
DUTRA, P. B.
PEREZ, D. V.
author_role author
author2 VAITSMAN, D. S.
DUTRA, P. B.
PEREZ, D. V.
author2_role author
author
author
dc.contributor.none.fl_str_mv HUMBERTO BREVILATO NOVAES, UFRJ; DELMO SANTIAGO VAITSMAN, UFRJ; PAULO BECHARA DUTRA, UFRJ; DANIEL VIDAL PEREZ, CNPS.
dc.contributor.author.fl_str_mv NOVAES, H. B.
VAITSMAN, D. S.
DUTRA, P. B.
PEREZ, D. V.
dc.subject.por.fl_str_mv Chromatrography
Cromatografia
topic Chromatrography
Cromatografia
description Lettuce is worldwide known as the most important vegetable. In this context, most farmers are searching new techniques for best quality products including hydropony. However, nitrate is of great concern, since it has a negative impact on human metabolism. The main objective of the present work was to evaluate the nitrate content of lettuce produced by conventional and hydroponic systems. The determination was conducted by ion chromatography and a new method of extraction was tested using microwave oven digestion. The results indicated that nitrate level produced in the conventional system was lower than in the hydroponic system.
publishDate 2009
dc.date.none.fl_str_mv 2009
2010-04-20
2018-10-24T00:35:00Z
2018-10-24T00:35:00Z
2018-10-24T00:35:00Z
dc.type.driver.fl_str_mv info:eu-repo/semantics/publishedVersion
info:eu-repo/semantics/article
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv Química Nova, São Paulo, v. 32, n. 6, p. 1647-1650, 2009.
http://www.alice.cnptia.embrapa.br/alice/handle/doc/697117
https://doi.org/10.1590/S0100-40422009000600049
identifier_str_mv Química Nova, São Paulo, v. 32, n. 6, p. 1647-1650, 2009.
url http://www.alice.cnptia.embrapa.br/alice/handle/doc/697117
https://doi.org/10.1590/S0100-40422009000600049
dc.language.iso.fl_str_mv eng
language eng
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.source.none.fl_str_mv reponame:Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice)
instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa)
instacron:EMBRAPA
instname_str Empresa Brasileira de Pesquisa Agropecuária (Embrapa)
instacron_str EMBRAPA
institution EMBRAPA
reponame_str Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice)
collection Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice)
repository.name.fl_str_mv Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa)
repository.mail.fl_str_mv cg-riaa@embrapa.br
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