Characterization and biological activity of condensed tannins from tropical forage legumes
Abstract: 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 (PB...
| Main Authors: | , , , , , , , |
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| Format: | Article |
| Language: | English |
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Embrapa Informação Tecnológica
2018-09-01
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| Series: | Pesquisa Agropecuária Brasileira |
| Subjects: | |
| Online Access: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2018000901070&tlng=en |
| _version_ | 1798015267298607104 |
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| author | Tatiana Pires Pereira Elisa Cristina Modesto Delci de Deus Nepomuceno Osniel Faria de Oliveira Rafaela Scalise Xavier de Freitas James Pierre Muir José Carlos Batista Dubeux Junior João Carlos de Carvalho Almeida |
| author_facet | Tatiana Pires Pereira Elisa Cristina Modesto Delci de Deus Nepomuceno Osniel Faria de Oliveira Rafaela Scalise Xavier de Freitas James Pierre Muir José Carlos Batista Dubeux Junior João Carlos de Carvalho Almeida |
| author_sort | Tatiana Pires Pereira |
| collection | DOAJ |
| description | Abstract: 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. |
| first_indexed | 2024-04-11T15:31:44Z |
| format | Article |
| id | doaj.art-c3d5d1814cc04f759438f0f73b58c688 |
| institution | Directory Open Access Journal |
| issn | 1678-3921 |
| language | English |
| last_indexed | 2024-04-11T15:31:44Z |
| publishDate | 2018-09-01 |
| publisher | Embrapa Informação Tecnológica |
| record_format | Article |
| series | Pesquisa Agropecuária Brasileira |
| spelling | doaj.art-c3d5d1814cc04f759438f0f73b58c6882022-12-22T04:16:08ZengEmbrapa Informação TecnológicaPesquisa Agropecuária Brasileira1678-39212018-09-015391070107710.1590/s0100-204x2018000900011Characterization and biological activity of condensed tannins from tropical forage legumesTatiana Pires PereiraElisa Cristina ModestoDelci de Deus NepomucenoOsniel Faria de OliveiraRafaela Scalise Xavier de FreitasJames Pierre MuirJosé Carlos Batista Dubeux JuniorJoão Carlos de Carvalho AlmeidaAbstract: 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.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2018000901070&tlng=enforage legumesphenolsprocyanidinsprodelphinidinsprotein |
| spellingShingle | Tatiana Pires Pereira Elisa Cristina Modesto Delci de Deus Nepomuceno Osniel Faria de Oliveira Rafaela Scalise Xavier de Freitas James Pierre Muir José Carlos Batista Dubeux Junior João Carlos de Carvalho Almeida Characterization and biological activity of condensed tannins from tropical forage legumes Pesquisa Agropecuária Brasileira forage legumes phenols procyanidins prodelphinidins protein |
| title | Characterization and biological activity of condensed tannins from tropical forage legumes |
| title_full | Characterization and biological activity of condensed tannins from tropical forage legumes |
| title_fullStr | Characterization and biological activity of condensed tannins from tropical forage legumes |
| title_full_unstemmed | Characterization and biological activity of condensed tannins from tropical forage legumes |
| title_short | Characterization and biological activity of condensed tannins from tropical forage legumes |
| title_sort | characterization and biological activity of condensed tannins from tropical forage legumes |
| topic | forage legumes phenols procyanidins prodelphinidins protein |
| url | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2018000901070&tlng=en |
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