SciELO - Scientific Electronic Library Online

 
vol.20 issue2Factors affecting the transient expression of gene GUS in cassava (Manihot esculenta Crantz)Lighting the anaerobic digestion process in rural areas: struvite from cattle manure digestate author indexsubject indexarticles search
Home Pagealphabetic serial listing  

Services on Demand

Journal

Article

Indicators

Related links

  • On index processCited by Google
  • Have no similar articlesSimilars in SciELO
  • On index processSimilars in Google

Share


Revista Colombiana de Biotecnología

Print version ISSN 0123-3475

Abstract

GARCIA, Juan P.; GIL, John E; BOTERO, Sebastián  and  VALENCIA G, Francia E. Growth control of Listeria monocytogenes in co-culture with Lactobacillus plantarum. Rev. colomb. biotecnol [online]. 2018, vol.20, n.2, pp.68-77. ISSN 0123-3475.  https://doi.org/10.15446/rev.colomb.biote.v20n2.77064.

Listeria monocytogenes (Lm) is an emerging pathogen causing foodborne diseases especially in dairy products and meat. Nowadays are sought different strategies to their control for example natural compounds produced by microorganisms, such as organic acids and other compounds as lactoferrin, lysozyme and bacteriocins, the latter produced by bacterial species as Lactobacillus plantarum (Lp). The main objective of this research was to determine the effect of Lp strains isolated from "Suero costeño" inoculated in co-culture over the L. monocytogenes growth. There where made growth kinetics for Lm, Lp 60-1 and Lp 62-1 and co-cultures of each Lp with Lm. The growth kinetic was evaluated establishing the viability during 24h in selective culture media. The growth rate of L. monocytogenes inoculated in UHT milk and in co-culture, showed a significative difference (p<0,05) between the treatments, demonstrating that the control reach an average value of growth rate higher (µmax =0,65 h-1) than the one obtained for the co-culture with Lp 60-1 and Lp 62-1 (µmax =0,22 h-1 and µmax =0,27 h-1 respectively). The higher difference between the last two treatments was given by the treatment with Lp 60-1, obtaining the lowest average value for the Lm growth. The results showed the efficiency of the Lp strains (60-1 y 62-1) for the growth control of Lm in UHT commercial milk, being an alternative to reduce the use of chemical additives during the production of dairy products.

Keywords : Foodborne pathogens; inhibitory capacity; bacteria rate growth.

        · abstract in Spanish     · text in Spanish     · Spanish ( pdf )