African Journal of
Biotechnology

  • Abbreviation: Afr. J. Biotechnol.
  • Language: English
  • ISSN: 1684-5315
  • DOI: 10.5897/AJB
  • Start Year: 2002
  • Published Articles: 12291

Full Length Research Paper

Synergistic effects of ethanolic plant extract mixtures against food-borne pathogen bacteria

Salvador Eduardo Vásquez Rivera
  • Salvador Eduardo Vásquez Rivera
  • Food Research Department, School of Chemistry, Universidad Autónoma de Coahuila. Blvd. V. Carranza and Ing. José Cárdenas V. s/n. Col. República Ote. Saltillo 25280, Coahuila, México.
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Mayra Alejandra Escobar-Saucedo
  • Mayra Alejandra Escobar-Saucedo
  • Food Research Department, School of Chemistry, Universidad Autónoma de Coahuila. Blvd. V. Carranza and Ing. José Cárdenas V. s/n. Col. República Ote. Saltillo 25280, Coahuila, México.
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Diana Morales
  • Diana Morales
  • Fitokimica Industrial SA de CV, Ramos Arizpe, Coahuila, México.
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Cristóbal Noé Aguilar
  • Cristóbal Noé Aguilar
  • Food Research Department, School of Chemistry, Universidad Autónoma de Coahuila. Blvd. V. Carranza and Ing. José Cárdenas V. s/n. Col. República Ote. Saltillo 25280, Coahuila, México.
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Raúl Rodríguez-Herrera*
  • Raúl Rodríguez-Herrera*
  • Food Research Department, School of Chemistry, Universidad Autónoma de Coahuila. Blvd. V. Carranza and Ing. José Cárdenas V. s/n. Col. República Ote. Saltillo 25280, Coahuila, México.
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  •  Accepted: 05 January 2014
  •  Published: 29 January 2014

Abstract

Plant extracts are an important part in agroecology, as they benefit environment in combating pathogenic organisms, without resorting to synthetic chemicals. The objective of this study was to evaluate the antibacterial activity of mixtures of ethanol extracts from semi-desert plants [creosote bush (Larrea tridentata), tarbush (Flourensia cernua) and paddle cactus (Opuntia ficus-indica)] against Enterobacter aerogenes, Escherichia coli, Salmonella typhi and Staphylococcus aureus. The maximum antimicrobial activity was achieved with the creosote bush–tarbush-paddle cactus mix (1:1:1) v/v, followed by paddle cactus-tarbush (1:1) v/v. E. coli was the bacterial strain that showed the highest growth inhibition as consequence of the concentration of plant extracts (4000 and 5000 ppm of tarbush). While with the creosote bush plant extracts, the highest inhibition halos were observed. Synergistic effects were observed when mixtures of ethanolic plant extract against food-borne pathogen bacteria were used, so this may be a better way to design alternative pathogen control methodologies for food-borne pathogen bacteria.

 

Key words: Larrea tridentate, Flourensia cernua, Opuntia ficus-indica, ethanolic plant extract mixtures, food-borne pathogen.

Abbreviation

Abbreviation: CT, Condensed Tannins; HT, hydrolysable tannins; C, creosote bush; T, tarbush; P, paddle cactus.