title: [Bacteriostatic and/or bactericidal extract of Aloe vera gel on cultures of Listeria monocytogenes].
abstract: Listeria monocytogenes is a bacteria responsible for food borne diseases (FBD). The effect of Aloe vera gel extract as a possible bacteriostatic and/or bactericidal against Listeria monocytogenes, was checked by determined the minimum inhibitory concentration (MIC), the time of minimum inhibition (TMI) and minimum bactericidal concentration (MBC) solutions extract of Aloe vera gel in different concentrations on cultures of Listeria monocytogenes ATCC 7635. We applied the agar diffusion method, using solutions of extract of Aloe vera gel at concentrations of 0 to 100% for the MIC. The TMI was determined by growth curves in trypticase soy broth with an initial inoculum of Listeria monocytogenes ATCC 7635 of 108 CFU/mL in each solution. It was determined that the MIC was 10% extract of Aloe vera gel and TMI was 5 hours at concentrations of 10%, 20% and 30% of Aloe vera, while concentrations of 50, 80, 90 and 100%, the time was 8 hours. It was found that indeed the Aloe vera gel is bacteriostatic power on Listeria monocytogenes (p < 0.001), but yet, no bactericidal effect was obtained in our study.
authors.affiliation: Departamento de Biologia, Facultad de Ciencias y Tecnología, Escuela de Ciencias Biomédicas y Tecnológicas, Instituto de Investigaciones en Nutrición, Universidad de Carabobo, Sede Valencia, Venezuela.
authors.forename: Luis Guillermo
authors.initials: LG
authors.lastname: Ramírez Mérida
authors.forename: Alba
authors.initials: A
authors.lastname: Morón de Salim
authors.forename: Rosangela
authors.initials: R
authors.lastname: Catinella
authors.forename: Luis
authors.initials: L
authors.lastname: Castillo
mesh_terms: D000504:Aloe / Q000737:chemistry*; D000900:Anti-Bacterial Agents / Q000494:pharmacology*; D052978:Disk Diffusion Antimicrobial Tests; D005782:Gels; D008089:Listeria monocytogenes / Q000187:drug effects*; D010936:Plant Extracts / Q000494:pharmacology*
chemical_list: D000900:Anti-Bacterial Agents; D005782:Gels; D010936:Plant Extracts