Antibacterial effect (in vitro) of Moringa oleifera and Annona muricata against Gram positive and Gram negative bacteria

Rev Inst Med Trop Sao Paulo. May-Jun 2010;52(3):129-32. doi: 10.1590/s0036-46652010000300003.

Abstract

Antibacterial effects of aqueous and ethanolic extracts of seeds of moringa (Moringa oleifera) and pods of soursop (Annona muricata) in the concentration of 1:5 and 1:10 in volumes 50, 100, 150 and 200 microL were examined against Staphylococcus aureus, Vibrio cholerae, Escherichia coli (isolated from the organism and the aquatic environment) and Salmonella Enteritidis. Antibacterial activity (inhibition halo > 13 mm) against S. aureus, V. cholerae and E. coli isolated from the whiteleg shrimp, Litopenaeus vannmaei, was detected in aqueous and ethanolic extracts of moringa. E. coli isolated from tilapiafish, Oreochromis niloticus, was sensitive to the ethanolic extract of moringa. The aqueous extracts of soursop showed an antibacterial effect against S. aureus and V. cholerae, but the antibacterial activity by the ethanol extracts of this plant was not demonstrated.

MeSH terms

  • Animals
  • Annona / chemistry*
  • Anti-Bacterial Agents / pharmacology*
  • Cichlids / microbiology
  • Escherichia coli / drug effects
  • Escherichia coli / isolation & purification
  • Gram-Negative Bacteria / drug effects*
  • Gram-Negative Bacteria / isolation & purification
  • Microbial Sensitivity Tests
  • Moringa oleifera / chemistry*
  • Penaeidae / microbiology
  • Plant Extracts / pharmacology*
  • Salmonella enteritidis / drug effects
  • Salmonella enteritidis / isolation & purification
  • Staphylococcus aureus / drug effects*
  • Staphylococcus aureus / isolation & purification
  • Vibrio cholerae / drug effects
  • Vibrio cholerae / isolation & purification

Substances

  • Anti-Bacterial Agents
  • Plant Extracts