Data/hora: 20/06/2024 15:00:00

Biblioteca(s): | Embrapa Agroindústria de Alimentos.
Tipo da produção científica: | Artigo em Periódico Indexado
Circulação/Nível: | A - 1
Data corrente: | 30/10/2017
Data da última atualização: | 09/01/2018
Autoria: | SILVA-ANGULO, A. B.; ZANINI, S. F.; ROSENTHAL, A.; RODRIGO, D.; KLEIN, G.; MARTÍNEZ, A.
Afiliação: | Angela B. Silva-Angulo, Departamento de Biotecnologia Agrolimentaria, Biopolis; Surama F. Zanini, UFES; AMAURI ROSENTHAL, CTAA; Dolores Rodrigo, Department of Preservation and Food Quality, Instituto de Agroquímica y Tecnología de Alimentos (IATA-CSIC); Günter Klein, Institute of Food Quality and Food Safety, University of Veterinary Medicine, Hannover; Antonio Martínez, Department of Preservation and Food Quality, Instituto de Agroquímica y Tecnología de Alimentos (IATA-CSIC).
Título: | Comparative study of the effects of citral on the growth and injury of Listeria innocua and Listeria monocytogenes Cells.
Ano de publicação: | 2015
Fonte/Imprenta: | Plos One, feb. 2, 2015.
Páginas: | 13 p.
DOI: | 10.1371/journal.pone.0114026
Idioma: | Inglês
Conteúdo: | This study investigates the effect of citral on growth and on the occurrence of sublethal damage in Listeria innocua Serovar 6a (CECT 910) and Listeria monocytogenes Serovar 4b (CECT 4032) cells that were exposed to citral as a natural antimicrobial agent. Two initial inoculum concentrations were considered in this investigation: 102 and 106 cfu/mL. Citral exhibited antilisterial activity against L. innocua and L. monocytogenes, and the observed effects were dependent on the concentration of citral present in the culture medium (0, 0.150 and 0.250 &#956;L/mL) (p 0.05). L. innocua had a shorter lag phase than L. monocytogenes, and the two species had nearly identical maximum specific growth rates. These results indicate that L. innocua could be used as surrogate for L. monocytogenes when testing the effects of this antimicrobial. Significant differences in the lag phase and growth rate were observed between the small and large inoculum concentration (p 0.05). Citraltreated L. innocua and L. monocytogenes that were recovered on selective medium (i.e., TSA-YE-SC) had a shorter lag phase and a higher maximum specific growth rate than cells that were recovered on non-selective medium (i.e., TSA-YE) (p 0.05). This result suggests that damage occurs at sublethal concentrations of citral.
Palavras-Chave: | Listeria monocytogenes Cells.
Thesaurus Nal: | Listeria; Listeria innocua.
Categoria do assunto: | X Pesquisa, Tecnologia e Engenharia
Registro original: | Embrapa Agroindústria de Alimentos (CTAA)
Exemplares: | CTAA - (13848-1) - UPC - AP - DD -  -  -  - DIS