Document Detail


Comparison of Sampling Procedures for Recovery of Listeria monocytogenes from Stainless Steel Food Contact Surfaces.
MedLine Citation:
PMID:  22691475     Owner:  NLM     Status:  In-Data-Review    
Abstract/OtherAbstract:
A number of techniques exist for microbiological sampling of food processing environments in food industries. In the present study the efficacies of nine sampling procedures for the recovery of Listeria monocytogenes from food contact surfaces, including a new sampling device consisting of a miniroller, were evaluated and compared. A stainless steel table was inoculated with L. monocytogenes strain 935 (serovar 4b, human origin) and L. monocytogenes strain 437/07 (serovar 1/2b, food origin), at 10(5) CFU/100 cm(2). L. monocytogenes strain 935 was best recovered with the minirollers (recovery of up to 6.27%), while poor recoveries (<0.30%) were obtained with the towel (one-ply composite tissue), alginate swab, metallic swab, and Petrifilm methods. In the case of L. monocytogenes strain 437/07 the replicate organism detection and counting (RODAC) ALOA contact plates yielded the best recoveries (4.15%), followed by the minirollers (up to 1.52%). Overall, recovery percentages with the minirollers were higher with stomacher homogenization than with Vibromatic agitation. The recovery percentages obtained for the Listeria strain of human origin were higher than those obtained with the food strain for all sampling procedures except Petrifilm and RODAC ALOA. With the miniroller device coated with wool fiber, the recovery of L. monocytogenes can be improved from 2 to 17 times over recoveries obtained with the sponge and cotton swab. This is the first report of a miniroller device for microbiological sampling in the available literature. The novel sampling procedure is convenient to apply on surfaces, is cost-effective, and results in better recovery of L. monocytogenes than do the conventional methods.
Authors:
Diego Gómez; Agustín Ariño; Juan J Carramiñana; Carmina Rota; Javier Yangüela
Related Documents :
15092565 - A california air standard to protect vegetation from ozone.
12523445 - Photocatalytic degradation of 2-phenethyl-2-chloroethyl sulfide in liquid and gas phases.
10439555 - Indoor air quality investigation on commercial aircraft.
1888105 - An investigation of environmental impact on health of workers at retail petrol pumps.
1159255 - Food choices of obese and non-obese persons.
15091675 - Beech foliage as a bioindicator of pollution near a waste incinerator.
Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Journal of food protection     Volume:  75     ISSN:  1944-9097     ISO Abbreviation:  J. Food Prot.     Publication Date:  2012 Jun 
Date Detail:
Created Date:  2012-06-13     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  7703944     Medline TA:  J Food Prot     Country:  United States    
Other Details:
Languages:  eng     Pagination:  1077-82     Citation Subset:  IM    
Affiliation:
Department of Animal Production and Food Science, Veterinary Faculty, University of Zaragoza, c/ Miguel Servet 177, 50013 Zaragoza, Spain.
Export Citation:
APA/MLA Format     Download EndNote     Download BibTex
MeSH Terms
Descriptor/Qualifier:

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


Previous Document:  Inhibition of Listeria monocytogenes Using Natural Antimicrobials in No-Nitrate-or-Nitrite-Added Ham...
Next Document:  In Vitro Evaluation of the Probiotic Potential of Bacteriocin Producer Lactobacillus sakei 1.