Influence of extractive parameters on the preparation of a solution from <i>Psidium guajava</i> L.

The aim of this work is evaluate the influence of extractives parameters on tannin content of solutions obtained from leaves of P. guajava and the antimicrobial activity of the best extract solution. The type of extraction, drug proportion and alcohol concentration were studied following a factorial...

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Autores principales: Silva, Ítalo V., Ferreira, Marcel, Wanderley, Almir G., Fernandes, Maria J., Soares, Luiz Alberto Lira, Pereira de Souza, Tatiane
Formato: Articulo
Lenguaje:Inglés
Publicado: 2009
Materias:
Farmacia
psidium guajava; extractive solution; tannin; factorial design; antimicrobial activity
Extractos de plantas
Taninos
Evaluación de drogas
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/7736
http://www.latamjpharm.org/trabajos/28/1/LAJOP_28_1_2_6_FR0ORRAGT0.pdf
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-7736
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Farmacia
psidium guajava; extractive solution; tannin; factorial design; antimicrobial activity
Extractos de plantas
Taninos
Evaluación de drogas
spellingShingle Farmacia
psidium guajava; extractive solution; tannin; factorial design; antimicrobial activity
Extractos de plantas
Taninos
Evaluación de drogas
Silva, Ítalo V.
Ferreira, Marcel
Wanderley, Almir G.
Fernandes, Maria J.
Soares, Luiz Alberto Lira
Pereira de Souza, Tatiane
Influence of extractive parameters on the preparation of a solution from <i>Psidium guajava</i> L.
topic_facet Farmacia
psidium guajava; extractive solution; tannin; factorial design; antimicrobial activity
Extractos de plantas
Taninos
Evaluación de drogas
description The aim of this work is evaluate the influence of extractives parameters on tannin content of solutions obtained from leaves of P. guajava and the antimicrobial activity of the best extract solution. The type of extraction, drug proportion and alcohol concentration were studied following a factorial design and the responses evaluated were tannin content and dry residue. The tannins content was assayed by spectrophotometric method at 271nm using casein as precipitant agent and the dry residue was determined by gravimetric method. The statistical analysis demonstrated that only the alcohol concentrations have significant influence on tannins content, but on the dry residue both factors (drug and alcohol proportion) were important. In accordance of the results, the best extractive method was decoction on reflux during 15 min using alcohol concentration 50 % (v/v) as solvent and this extract solution shows a promising antimicrobial activity.
format Articulo
Articulo
author Silva, Ítalo V.
Ferreira, Marcel
Wanderley, Almir G.
Fernandes, Maria J.
Soares, Luiz Alberto Lira
Pereira de Souza, Tatiane
author_facet Silva, Ítalo V.
Ferreira, Marcel
Wanderley, Almir G.
Fernandes, Maria J.
Soares, Luiz Alberto Lira
Pereira de Souza, Tatiane
author_sort Silva, Ítalo V.
title Influence of extractive parameters on the preparation of a solution from <i>Psidium guajava</i> L.
title_short Influence of extractive parameters on the preparation of a solution from <i>Psidium guajava</i> L.
title_full Influence of extractive parameters on the preparation of a solution from <i>Psidium guajava</i> L.
title_fullStr Influence of extractive parameters on the preparation of a solution from <i>Psidium guajava</i> L.
title_full_unstemmed Influence of extractive parameters on the preparation of a solution from <i>Psidium guajava</i> L.
title_sort influence of extractive parameters on the preparation of a solution from <i>psidium guajava</i> l.
publishDate 2009
url http://sedici.unlp.edu.ar/handle/10915/7736
http://www.latamjpharm.org/trabajos/28/1/LAJOP_28_1_2_6_FR0ORRAGT0.pdf
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