Journal
PESQUISA VETERINARIA BRASILEIRA
Volume 35, Issue 4, Pages 353-359Publisher
REVISTA PESQUISA VETERINARIA BRASILEIRA
DOI: 10.1590/S0100-736X2015000400007
Keywords
Lactobacillus; antagonism; Escherichia coli O157:H7; organic acid
Categories
Funding
- CAPES (Coordenacao de Aperfeicoamento de Pessoal de Nivel Superior)
- FAPESP (Fundacao de Amparo a Pesquisa do Estado de Sao Paulo)
- CNPq (Conselho Nacional de Pesquisa e Desenvolvimento Tecnologico)
- CNPq fellowship
Ask authors/readers for more resources
Many attempts have been made to establish the control of foodborne pathogens through Lactobacillus isolates and their metabolism products with success being obtained in several situations. The aim of this study was to investigate the antagonistic effect of eight Lactobacillus isolates, including L. casei subsp. pseudoplantarum, L. plantarum, L. reuteri and L. delbrueckii subsp. delbrueckii, on the pathogenic Escherichia coli strain O157:H7. The inhibitory effect of pure cultures and two pooled cultures supernatants of Lactobacillus on the growth of pathogenic bacteria was evaluated by the spot agar method and by monitoring turbidity. Antimicrobial activity was confirmed for L. reuteri and L. delbrueckii subsp. delbrueckii and for a pool of lactic acid bacteria. The neutralized supernatant of the pool exerted a higher antimicrobial activity than that of the individual strains. Furthermore, D-lactic acid and acetic acid were produced during growth of the Lactobacillus isolates studied.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available