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Memórias do Instituto Oswaldo Cruz
Fundação Oswaldo Cruz, Fiocruz
ISSN: 1678-8060
EISSN: 1678-8060
Vol. 97, No. 7, 2002, pp. 1027-1031
Bioline Code: oc02229
Full paper language: English
Document type: Research Article
Document available free of charge

Memórias do Instituto Oswaldo Cruz, Vol. 97, No. 7, 2002, pp. 1027-1031

 en Screening of Some Plants Used in the Brazilian Folk Medicine for the Treatment of Infectious Diseases
Fabíola Barbiéri Holetz; Greisiele Lorena Pessini; Neviton Rogério Sanches; Diógenes Aparício Garcia Cortez; Celso Vataru Nakamura & Benedito Prado Dias Filho

Abstract

Extracts of 13 Brazilian medicinal plants were screened for their antimicrobial activity against bacteria and yeasts. Of these, 10 plant extracts showed varied levels of antibacterial activity. Piper regnellii check for this species in other resources presented a good activity against Staphylococus aureus check for this species in other resources and Bacillus subtilis check for this species in other resources , a moderate activity on Pseudomonas aeruginosa check for this species in other resources , and a weak activity against Escherichia coli check for this species in other resources . Punica granatum check for this species in other resources showed good activity on S. aureus and was inactive against the other standard strains. Eugenia uniflora check for this species in other resources presented moderate activity on both S. aureus and E. coli. Psidium guajava check for this species in other resources , Tanacetum vulgare check for this species in other resources , Arctium lappa check for this species in other resources , Mikania glomerata check for this species in other resources , Sambucus canadensis check for this species in other resources , Plantago major check for this species in other resources and Erythrina speciosa check for this species in other resources presented some degree of antibacterial activity. Spilanthes acmella check for this species in other resources , Lippia alba check for this species in other resources , and Achillea millefolium check for this species in other resources were considered inactive. Five of the plant extracts presented compounds with Rf values similar to the antibacterial compounds visible on bioautogram. Of these, three plants belong to the Asteraceae family. This may mean that the same compounds are responsible for the antibacterial activity in these plants. Anticandidal activity was detected in nine plant extracts (P. guajava, E. uniflora, P. granatum, A. lappa, T. vulgare, M. glomerata, L. alba, P. regnellii, and P. major). The results might explain the ethnobotanical use of the studied species for the treatment of various infectious diseases.

Keywords
medicinal plants - antibacterial activity - anticandidal activity - bioautography

 
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