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Registro Completo |
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Biblioteca(s): |
Embrapa Clima Temperado. |
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Data corrente: |
13/04/2009 |
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Data da última atualização: |
03/01/2019 |
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Tipo da produção científica: |
Documentos |
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Autoria: |
ZABALETA, J. P.; TREPTOW, R. de O.; FERRI, N. M. L.; DAMÉ, D. V. |
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Título: |
Avaliação sensorial de cebolinha (Allium cepa, L.) orgânica para conserva. |
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Ano de publicação: |
2008 |
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Fonte/Imprenta: |
Pelotas: Embrapa Clima Temperado, 2008. |
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Páginas: |
20 p. |
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Série: |
(Embrapa Clima Temperado. Documentos, 233). |
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Idioma: |
Português |
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Palavras-Chave: |
Análise sensorial; Cultivo orgânico. |
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Thesagro: |
Agricultura Familiar; Cebola; Conserva; Processamento. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/CPACT-2009-09/11943/1/documento_233.pdf
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Marc: |
LEADER 00664nam a2200229 a 4500
001 1746797
005 2019-01-03
008 2008 bl uuuu u0uu1 u #d
100 1 $aZABALETA, J. P.
245 $aAvaliação sensorial de cebolinha (Allium cepa, L.) orgânica para conserva.
260 $aPelotas: Embrapa Clima Temperado$c2008
300 $a20 p.
490 $a(Embrapa Clima Temperado. Documentos, 233).
650 $aAgricultura Familiar
650 $aCebola
650 $aConserva
650 $aProcessamento
653 $aAnálise sensorial
653 $aCultivo orgânico
700 1 $aTREPTOW, R. de O.
700 1 $aFERRI, N. M. L.
700 1 $aDAMÉ, D. V.
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Registro original: |
Embrapa Clima Temperado (CPACT) |
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Registro Completo
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Biblioteca(s): |
Embrapa Unidades Centrais. |
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Data corrente: |
07/10/2019 |
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Data da última atualização: |
07/10/2019 |
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Autoria: |
BISOGNIN, D. A.; LUZ, L. V. da; LENCINA, K. H.; SANTOS, C. O. dos; SAUTTER, C. K. |
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Afiliação: |
Dilson Antônio Bisognin, Universidade Federal de Santa Maria - UFSM/Departamento de Fitotecnia; Leandro Vinícius da Luz, Universidade Federal de Santa Maria - UFSM/Programa de Pós-Graduação em Engenharia Florestal; Kelen Haygert Lencina, Universidade Federal de Santa Maria - UFSM/Programa de Pós-Graduação em Engenharia Florestal; Clarissa Obem dos Santos, Universidade Federal de Santa Maria - UFSM/Programa de Pós-Graduação em Tecnologia de Alimentos; Cláudia Kaehler Sautter, Universidade Federal de Santa Maria - UFSM/Departamento de Tecnologia e Ciência dos Alimentos. |
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Título: |
Contents of total phenolics and flavonoids in and antioxidant activity of Ilex paraguariensis leaves. |
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Ano de publicação: |
2019 |
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Fonte/Imprenta: |
Pesquisa Agropecuária Brasileira, v. 54, e00856, 2019. |
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Idioma: |
Inglês |
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Notas: |
Título em português: Teores de compostos fenólicos totais e flavonoides e atividade antioxidante em folhas de Ilex paraguariensis. |
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Conteúdo: |
The objective of this work was to evaluate different solvents and times in the ultrasound-assisted extraction of polyphenols, in order to quantify the total phenolic and flavonoid contents in and the antioxidant activity of mate (Ilex paraguariensis) leaves. The experiment was carried out in a completely randomized design, in a 8x3 (solvent x time of extraction) factorial arrangement. The solvent extractors were distilled water and aqueous solutions of ethanol, acetone, and methanol, acidified or not with hydrochloric acid, and the time of ultrasound-assisted extractions were 15, 30, and 45 min. All extractions were finished with a mechanical agitation of 30 min. Samples treated with acidified hydroalcoholic solvents resulted in higher values of total phenolics and flavonoids and antioxidant activity. The extraction using acidified hydroethanol solvent was not affected by the time in the ultrasound. The contents of total phenolics and flavonoids were highly correlated with each other and with the antioxidant activity, especially when it was determined by the ferric-reducing antioxidant power method. Acidified hydroethanol solvent in ultrasound for 15 min is the most suitable extraction condition for the quantification of the contents of total phenolics and flavonoids in and the antioxidant activity of mate leaves. |
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Palavras-Chave: |
Erva-mate; Polaridade; Polarity; Polifenóis. |
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Thesagro: |
Solvente. |
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Thesaurus NAL: |
Polyphenols; Solvents. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/202604/1/Contents-of-total-phenolics-and-flavonoids.pdf
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Marc: |
LEADER 02200naa a2200265 a 4500
001 2112816
005 2019-10-07
008 2019 bl uuuu u00u1 u #d
100 1 $aBISOGNIN, D. A.
245 $aContents of total phenolics and flavonoids in and antioxidant activity of Ilex paraguariensis leaves.$h[electronic resource]
260 $c2019
500 $aTítulo em português: Teores de compostos fenólicos totais e flavonoides e atividade antioxidante em folhas de Ilex paraguariensis.
520 $aThe objective of this work was to evaluate different solvents and times in the ultrasound-assisted extraction of polyphenols, in order to quantify the total phenolic and flavonoid contents in and the antioxidant activity of mate (Ilex paraguariensis) leaves. The experiment was carried out in a completely randomized design, in a 8x3 (solvent x time of extraction) factorial arrangement. The solvent extractors were distilled water and aqueous solutions of ethanol, acetone, and methanol, acidified or not with hydrochloric acid, and the time of ultrasound-assisted extractions were 15, 30, and 45 min. All extractions were finished with a mechanical agitation of 30 min. Samples treated with acidified hydroalcoholic solvents resulted in higher values of total phenolics and flavonoids and antioxidant activity. The extraction using acidified hydroethanol solvent was not affected by the time in the ultrasound. The contents of total phenolics and flavonoids were highly correlated with each other and with the antioxidant activity, especially when it was determined by the ferric-reducing antioxidant power method. Acidified hydroethanol solvent in ultrasound for 15 min is the most suitable extraction condition for the quantification of the contents of total phenolics and flavonoids in and the antioxidant activity of mate leaves.
650 $aPolyphenols
650 $aSolvents
650 $aSolvente
653 $aErva-mate
653 $aPolaridade
653 $aPolarity
653 $aPolifenóis
700 1 $aLUZ, L. V. da
700 1 $aLENCINA, K. H.
700 1 $aSANTOS, C. O. dos
700 1 $aSAUTTER, C. K.
773 $tPesquisa Agropecuária Brasileira$gv. 54, e00856, 2019.
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Embrapa Unidades Centrais (AI-SEDE) |
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