This Article Full Text (PDF) Alert me when this article is cited Alert me if a correction is posted Services Similar articles in this journal Similar articles in PubMed Alert me to new issues of the journal Download to citation manager Reprints and Permissions Copyright Information Books from ASM Press MicrobeWorld Citing Articles Citing Articles via Google Scholar Google Scholar Articles by Bremer, P. J. Articles by Osborne, C. M. Search for Related Content PubMed PubMed Citation Articles by Bremer, P. J. Articles by Osborne, C. M. Agricola Articles by Bremer, P. J. Articles by Osborne, C. M.

 Previous Article  |  Next Article 

Appl. Environ. Microbiol., Apr 1995, 1514-1519, Vol 61, No. 4
Copyright © 1995, American Society for Microbiology

Efficacy of marinades against Listeria monocytogenes cells in suspension or associated with green shell mussels (Perna canaliculus)

PJ Bremer and CM Osborne
New Zealand Institute for Crop & Food Research Limited, Port Nelson, New Zealand.

In order to determine the listericidal efficacies of three marinades used in the production of marinated green shell mussels (Perna canaliculus), decimal reduction times (D values) were determined for a mixture of seven strains of Listeria monocytogenes exposed to marinades in the presence and absence of mussels. With an acetic acid (1.5%, wt/vol) marinade, calculated D values in the presence and absence of mussels were 77.3 and 33.3 h, respectively. Likewise, for an acetic acid (0.75%)-lactic acid (0.75%) marinade and an acetic acid (1.5%)- Glucono Delta-Lactone (0.2%)-based marinade, the D values in the presence and absence of mussels were 125.5 and 26.9 h and 86.3 and 19.3 h, respectively. Various increases in decimal reduction times in the presence of mussels indicated that there was no simple relationship between the listericidal natures of these marinades and the presence of mussels. This result suggests that difficulties may occur in trying to relate acid inhibition studies carried out in model broth systems to "real food" systems.