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Microbicidal effect of medicinal plant extracts (Psidium guajava Linn. and Carica papaya Linn.) upon bacteria isolated from fish muscle and known to induce diarrhea in children

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Pertenece a: SciELO Brasil - Scientific Electronic Library Online  

Descripción: Out of the twenty-four samples of shrimp and fish muscle used for this study, twelve were collected near a large marine sewer for waste disposal, 3 km off the coast of Fortaleza (Brazil) and used for the isolation of E. coli. Other twelve were collected at the Mucuripe fresh fish market (Fortaleza, Brazil) and used for the isolation of Staphylococcus aureus. Ethanol, water and acetone-diluted extracts of guava and papaya leaf sprouts were tested on the bacteria in order to verify their microbicidal potential. The E. coli strains used in the trials were rated LT positive. The papaya leaf extracts (Carica papaya Linn) showed no microbicidal activity while the guava sprout extracts (Psidium guajava Linn) displayed halos exceeding 13 mm for both species, an effect considered to be inhibitory by the method employed. Guava sprout extracts by 50% diluted ethanol most effectively inhibited E. coli (EPEC), while those in 50% acetone were less effective. It may be concluded that guava sprout extracts constitute a feasible treatment option for diarrhea caused by E. coli or by S. aureus-produced toxins, due to their quick curative action, easy availability in tropical countries and low cost to the consumer.

Autor(es): VIEIRA,Regine Helena Silva dos Fernandes -  RODRIGUES,Dália dos Prazeres -  GONÇALVES,Flávia Araújo -  MENEZES,Francisca Gleire Rodrigues de -  ARAGÃO,Janisi Sales -  SOUSA,Oscarina Viana - 

Id.: 277404

Idioma: English  - 

Versión: 1.0

Estado: Final

Tipo:  text/html - 

Palabras claveE. coli - 

Tipo de recurso: journal article  - 

Tipo de Interactividad: Expositivo

Nivel de Interactividad: muy bajo

Audiencia: Estudiante  -  Profesor  -  Autor  - 

Estructura: Atomic

Coste: no

Copyright: sí

Formatos:  text/html - 

Requerimientos técnicos:  Browser: Any - 

Fecha de contribución: 22-may-2005

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