Person:
Herranz Sorribes, Carmen

Profile Picture
First Name
Carmen
Last Name
Herranz Sorribes
URI
https://hdl.handle.net/20.500.14352/80410
Affiliation
Universidad Complutense de Madrid
Faculty / Institute
Veterinaria
Department
Nutrición y Ciencia de los Alimentos
Area
Nutrición y Bromatología
Identifiers
UCM identifierScopus Author IDDialnet ID

Filters

2010 - 20112
Reset filters

Settings

Author: Almeida, Tereza × Has files: true ×

Search Results

Now showing 1 - 2 of 2
  • Thumbnail Image
    Item
    Antimicrobial activity and occurrence of bacteriocin structural genes in Enterococcus spp. of human and animal origin isolated in Portugal
    (Archives of Microbiology, 2010) Brandão, Andreia; Almeida, Tereza; Muñoz Atienza, Estefanía; Torres, Carmen; Igrejas, Gilberto; Hernández Cruza, Pablo Elpidio; Cintas Izarra, Luis Miguel; Poeta, Patricia; Herranz Sorribes, Carmen
    The main objective of this study was to detect the antimicrobial activity and the presence of bacteriocin structural genes in 224 enterococcal isolates from fecal origin obtained from humans, pets, wild animals and birds. Direct antimicrobial activity against Listeria monocytogenes CECT4032 was detected in 102 (45.6%) of the tested isolates. From these, only 22 displayed bacteriocin activity against this indicator. The bacteriocinogenic strains contained one or more of the bacteriocin structural genes tested in this study, with those of enterocins P, A and L50 (L50A and L50B) being the most abundant. Our results show a high occurrence of the combination of different bacteriocin structural genes in the enterococcal isolates analyzed, indicating an elevated genetic potential of these strains to produce various bacteriocins.
  • Thumbnail Image
    Item
    Identification of bacteriocin genes in enterococci isolated from game animals and saltwater fish
    (Journal of Food Protection, 2011) Almeida, Tereza; Brandão, Andreia; Muñoz Atienza, Estefanía; Gonçalves, Alexandre; Torres, Carmen; Igrejas, Gilberto; Hernández Cruza, Pablo Elpidio; Herranz Sorribes, Carmen; Cintas Izarra, Luis Miguel; Poeta, Patrícia
    Bacteriocins produced by enterococci, referred to as enterocins, possess great interest for their potential use as biopreservatives in food and feed, as well as alternative antimicrobials in humans and animals. In this context, the aim of the present study was to determine the antimicrobial activity and the presence of bacteriocin structural genes in fecal enterococcal isolates from animal origins. Evaluation of the direct antimicrobial activity of 253 isolates from wild boars (Sus scrofa, n = 69), mullets (Liza ramada, n = 117), and partridges (Perdix perdix, n = 67) against eight indicator bacterial strains (including Listeria monocytogenes, Pediococcus pentosaceus, and Enterococcus spp.) showed that 177 (70%) exerted antimicrobial activity against at least one indicator microorganism. From these isolates, 123 were further selected on the basis of their inhibition group, and 81 were found to be producers of bacteriocins active against Listeria monocytogenes. Analysis of the presence of enterocin structural genes in a subset of 36 isolates showed that 70% harbored one or more of the evaluated genes, those of enterocin P and hiracin JM79 being the most prevalent. These results show that wild animals constitute an appropriate source for the isolation of bacteriocinogenic enterococci.