Consulta: creatorFacets:"Nóbrega,Fernanda Nogarol"
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Data/hora: 03/06/2024 07:40:18

Steroidal saponin concentrations in Brachiaria decumbens and B. brizantha at different developmental stages
Provedor de dados: 65
Autores: Brum,Karine Bonucielli; Haraguchi,Mitsue; Garutti,Mirella Biasoli; Nóbrega,Fernanda Nogarol; Rosa,Beneval; Fioravanti,Maria Clorinda Soares.
Brachiaria species contain steroidal saponins and are involved in outbreaks of hepatogenous photosensitization. This research presents the levels of a steroidal saponin, protodioscin, in the seeds and aerial parts of B. brizantha and B. decumbens during different developmental stages (growth, bloom, fructification and seed fall). The butanolic fraction of the ethanolic extract of each stage was submitted to thin layer chromatography (TLC) and spectrophotometric analysis through the Ehrlich reagent in 515nm. The chromatograms in TLC of the butanolic fraction of B. brizantha and B. decumbens showed similar spots as the protodioscin standard. The estimated level of protodioscin isomers in B. brizantha and B. decumbens ranged from 0.5% to 2.1%, having the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Brachiaria spp.; Photosensitization; Protodioscin; Spectrophotometry; Steroidal saponins.
Ano: 2009
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782009000100049