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Registro Completo |
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Biblioteca(s): |
Embrapa Unidades Centrais. |
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Data corrente: |
09/11/2018 |
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Data da última atualização: |
25/02/2019 |
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Autoria: |
PEREIRA, T. P.; MODESTO, E. C.; NEPOMUCENO, D. de D.; OLIVEIRA, O. F. de; FREITAS, R. S. X. de; MUIR, J. P.; DUBEUX JUNIOR, J. C. B.; ALMEIDA, J. C. de C. |
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Afiliação: |
Tatiana Pires Pereira, Universidade Federal Rural do Rio de Janeiro - UFRRJ; Elisa Cristina Modesto, Universidade Federal Rural do Rio de Janeiro - UFRRJ; Delci de Deus Nepomuceno, In memoriam; Osniel Faria de Oliveira, Universidade Federal Rural de Pernambuco - UFRPE; Rafaela Scalise Xavier de Freitas, Universidade Federal Rural do Rio de Janeiro - UFRRJ; James Pierre Muir, Texas AgriLife Research and Extension Center; José Carlos Batista Dubeux Junior, University of Florida, North Florida Research and Education Center; João Carlos de Carvalho Almeida, Universidade Federal Rural do Rio de Janeiro - UFRRJ. |
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Título: |
Characterization and biological activity of condensed tannins from tropical forage legumes. |
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Ano de publicação: |
2018 |
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Fonte/Imprenta: |
Pesquisa Agropecuária Brasileira, Brasília, DF, v. 53, n. 9, p. 1070-1077, Sept. 2018. |
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Idioma: |
Inglês |
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Notas: |
Título em português: Caracterização e atividade biológica de taninos condensados de leguminosas forrageiras tropicais. |
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Conteúdo: |
The objective of this work was to characterize condensed tannins (CT) from six tropical forage legumes and to determine their biological activity. The monomers propelargonidin, prodelphinidin and procyanidin were analyzed, as well as extractable condensed tannin (ECT), protein-bound CT (PBCT) and fiber-bound CT (FBCT), molecular weight, degree of polymerization, polydispersity index, and biological activity by protein precipitate by phenols (PPP) of leaves of the legumes Cajanus cajan, Gliricidia sepium, Stylosanthes capitata x Stylosanthes macrocephala (stylo), Flemingia macrophylla, Cratylia argentea, and Mimosa caesalpiniifolia, and of the bark of this latter species. Differences were observed in the concentrations of ECT, PBCT, PPP, and total condensed tannin among species, but not in that of FBCT. The highest value of PBCT occurred in F. macrophylla. Total CT varied from nondetected concentration in C. argentea to the highest concentration in M. caesalpiniifolia leaves that contain the greatest levels of PPP. No differences were observed for polymerization degree in stylo, F. macrophylla, and M. caesalpiniifolia. Leaves of stylo, C. cajan, and G. sepium, all containing between 20 and 50 g kg-1 total CT, should be beneficial CT sources, if offered as sole feeds in ruminant diets. The ratio of prodelphinidin:procyanidin varies from 10:80 (stylo) to 65:35 (F. machrophylla), and propelargonidin is only determined in C. argentea. |
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Palavras-Chave: |
Procianidina; Prodelfinidina; Prodelphinidins; Protein. |
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Thesagro: |
Fenol; Leguminosa Forrageira; Proteína. |
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Thesaurus Nal: |
Forage legumes; Phenols; Procyanidins. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/185728/1/Characterization-and-biological-activity.pdf
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Marc: |
LEADER 02551naa a2200337 a 4500
001 2099109
005 2019-02-25
008 2018 bl uuuu u00u1 u #d
100 1 $aPEREIRA, T. P.
245 $aCharacterization and biological activity of condensed tannins from tropical forage legumes.$h[electronic resource]
260 $c2018
500 $aTítulo em português: Caracterização e atividade biológica de taninos condensados de leguminosas forrageiras tropicais.
520 $aThe objective of this work was to characterize condensed tannins (CT) from six tropical forage legumes and to determine their biological activity. The monomers propelargonidin, prodelphinidin and procyanidin were analyzed, as well as extractable condensed tannin (ECT), protein-bound CT (PBCT) and fiber-bound CT (FBCT), molecular weight, degree of polymerization, polydispersity index, and biological activity by protein precipitate by phenols (PPP) of leaves of the legumes Cajanus cajan, Gliricidia sepium, Stylosanthes capitata x Stylosanthes macrocephala (stylo), Flemingia macrophylla, Cratylia argentea, and Mimosa caesalpiniifolia, and of the bark of this latter species. Differences were observed in the concentrations of ECT, PBCT, PPP, and total condensed tannin among species, but not in that of FBCT. The highest value of PBCT occurred in F. macrophylla. Total CT varied from nondetected concentration in C. argentea to the highest concentration in M. caesalpiniifolia leaves that contain the greatest levels of PPP. No differences were observed for polymerization degree in stylo, F. macrophylla, and M. caesalpiniifolia. Leaves of stylo, C. cajan, and G. sepium, all containing between 20 and 50 g kg-1 total CT, should be beneficial CT sources, if offered as sole feeds in ruminant diets. The ratio of prodelphinidin:procyanidin varies from 10:80 (stylo) to 65:35 (F. machrophylla), and propelargonidin is only determined in C. argentea.
650 $aForage legumes
650 $aPhenols
650 $aProcyanidins
650 $aFenol
650 $aLeguminosa Forrageira
650 $aProteína
653 $aProcianidina
653 $aProdelfinidina
653 $aProdelphinidins
653 $aProtein
700 1 $aMODESTO, E. C.
700 1 $aNEPOMUCENO, D. de D.
700 1 $aOLIVEIRA, O. F. de
700 1 $aFREITAS, R. S. X. de
700 1 $aMUIR, J. P.
700 1 $aDUBEUX JUNIOR, J. C. B.
700 1 $aALMEIDA, J. C. de C.
773 $tPesquisa Agropecuária Brasileira, Brasília, DF$gv. 53, n. 9, p. 1070-1077, Sept. 2018.
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Embrapa Unidades Centrais (AI-SEDE) |
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| 15. |  | LOPES, F. C. F.; AROEIRA, L. J. M.; DERESZ, F.; NASCIMENTO, J. L. Concentração de amônia no rúmen de vacas mestiças holandês-zebu, em pastagem de capim-elefante (Pennisetum purpureum, Schum.) na estação das chuvas. Arquivo Brasileiro de Medicina Veterinária e Zootecnia, Belo Horizonte, v. 50, n. 3, p. 341-343, 1998.| Biblioteca(s): Embrapa Gado de Leite. |
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| 17. | | LOPES, F. C. F.; AROEIRA, L. J. M.; DAYRELL, M. S.; VERNEQUE, R. S. Digestibilidade e degradabilidade do capim elefante (Pennisetum purpureum, Schum.) picado, em vacas holandes x zebu. In: REUNIAO ANUAL DA SOCIEDADE BRASILEIRA DE ZOOTECNIA, 34., 1997, Juiz de Fora. Anais... Juiz de Fora: SBZ, 1997. p.249-251. v.1| Biblioteca(s): Embrapa Gado de Leite. |
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