Abstract：
:Listeria monocytogenes contamination of delicatessen slicer blades can lead to cross-contamination of luncheon meats. A cocktail of 3 strong or 3 weak biofilm-forming strains of L. monocytogenes suspended in turkey slurry was used to inoculate stainless steel delicatessen slicer blades at a level of 6 log CFU/blade. The cocktails were used with or without injury (cold-shocked at 4 degrees C for 2 h, or chlorine-injured at 100 ppm for 1 min). Inoculated blades were held at 22 degrees C/78+/-2% relative humidity for 6 and 24 h, before being used to generate 30 slices from chubs of roast turkey breast or Genoa salami. Slices (25 g) were diluted 1:5 in University of Vermont Medium, homogenized by stomaching and then pour-plated using tryptose phosphate agar supplemented with esculin and ferric ammonium citrate. Greater cumulative transfer to the 30 slices was seen for the strong (3.62 log CFU) as opposed to weak biofilm-forming cocktails (3.12 log CFU) with transfer also significantly greater to turkey (3.61 log CFU) than to salami (3.12 log CFU). Among the three treatments, cold-shock significantly increased subsequent L. monocytogenes transfer (3.69 log CFU) compared to the uninjured control (3.30 log CFU) and chlorine-injury (3.12 log CFU). Significantly greater transfer was also seen for blades used after 6 as opposed to 24 h of incubation. Differences in product composition and survival of L. monocytogenes, as seen via viability staining, are likely reasons for these observed differences in transfer.
journal_name
Int J Food Microbioljournal_title
International journal of food microbiologyauthors
Keskinen LA,Todd EC,Ryser ETdoi
10.1016/j.ijfoodmicro.2008.07.021subject
Has Abstractpub_date
2008-10-31 00:00:00pages
298-304issue
3eissn
0168-1605issn
1879-3460pii
S0168-1605(08)00422-4journal_volume
127pub_type
杂志文章abstract：:This study investigated accumulation of Vibrio parahaemolyticus in Zhe oyster (Crassostrea plicatula) from culture water and effectiveness of frozen and chilled storage on reducing V. parahaemolyticus in oysters. Freshly harvested oysters were placed in artificial seawater containing V. parahaemolyticus (10(4)CFU/mL) ...
journal_title：International journal of food microbiology
pub_type： 杂志文章
doi：10.1016/j.ijfoodmicro.2009.09.012
更新日期：2009-11-30 00:00:00
abstract：:In Tunisia, several food products derived from meat or seafood are naturally processed, without any addition of bacterial starters. Such fermented, dried-cured, salted, or marinated products, as well as the raw meat or fish may thus provide a source to isolate the natural microflora colonizing such environments. We is...
journal_title：International journal of food microbiology
pub_type： 杂志文章
doi：10.1016/j.ijfoodmicro.2007.11.045
更新日期：2008-02-10 00:00:00
abstract：:Production of type A trichothecenes has been reported in the closely related species Fusarium langsethiae and F. sporotrichioides. Here, we characterized a collection of Fusarium isolates from Siberia and the Russian Far East (hereafter Asian isolates) that produce high levels of the type A trichothecene T-2 toxin and...
journal_title：International journal of food microbiology
pub_type： 杂志文章
doi：10.1016/j.ijfoodmicro.2011.03.007
更新日期：2011-05-14 00:00:00
abstract：:A mid-log phase broth culture of Escherichia (E.) coli O157:H7 381 (final concentration 10(4) cfu/mL) was monitored by conventional liquid- and solid-based enumeration techniques combined with PCR while it was subjected to thermal stress in gradually more complex systems (i.e., Tryptone Soya Broth, pasteurized milk an...
journal_title：International journal of food microbiology
pub_type： 杂志文章
doi：10.1016/j.ijfoodmicro.2012.07.013
更新日期：2012-09-17 00:00:00
abstract：:The cinnamon flounder Pseudorhombus cinnamoneus is a frequently consumed marine fish in China. However, the occurrence of ascaridoid larvae in P. cinnamoneus remains unclear. In the present study, a total of 85 P. cinnamoneus caught from the Yellow Sea (off Shidao, 36°52'57″N, 122°26'42″E) in 2011, which is located be...
journal_title：International journal of food microbiology
pub_type： 杂志文章
doi：10.1016/j.ijfoodmicro.2016.10.018
更新日期：2017-01-16 00:00:00
abstract：:The inactivation of Lb. rhamnosus by pulsed electric field treatment (PEF) was studied in different fractions of raw milk and Ringer solution in order to evaluate the protective effect of nutrient rich media in comparison to aqueous buffer solutions. Apart from monitoring of culturability, analysis of the physiologica...
journal_title：International journal of food microbiology
pub_type： 杂志文章
doi：10.1016/j.ijfoodmicro.2009.06.007
更新日期：2009-08-31 00:00:00
abstract：:In order to improve the knowledge about the presence of Salmonella in pork meat in Sardinia (Italy), the prevalence and the sources of Salmonella at 5 pig slaughterhouses (slaughtered pigs and environment) were investigated and the isolates were characterised. A total of 462 samples were collected, 425 from pigs at sl...
journal_title：International journal of food microbiology
pub_type： 杂志文章
doi：10.1016/j.ijfoodmicro.2011.08.025
更新日期：2011-12-02 00:00:00
abstract：:The objectives of this study were to isolate psychrotrophic clostridia from Brazilian vacuum-packed beef cuts (spoiled or not) and to identify the isolates by using 16S rRNA gene sequencing. Anaerobic psychrotrophic microorganisms were also enumerated and samples were collected to verify the incidence of psychrotrophi...
journal_title：International journal of food microbiology
pub_type： 杂志文章
doi：10.1016/j.ijfoodmicro.2011.05.016
更新日期：2011-08-15 00:00:00
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journal_title：International journal of food microbiology
pub_type： 杂志文章
doi：10.1016/j.ijfoodmicro.2011.02.026
更新日期：2011-04-29 00:00:00
abstract：:The presence of Listeria spp. was investigated in a total of 3685 food samples obtained from different industries and markets of Northern Spain in the last 4 years. The samples analyzed include fresh raw products (meat, milk and poultry) and treated products (cooked and cured meats, frozen vegetables and smoked salmon...
journal_title：International journal of food microbiology
pub_type： 杂志文章
doi：10.1016/s0168-1605(03)00314-3
更新日期：2004-02-01 00:00:00
abstract：:Physiological aspects of the response of Listeria monocytogenes to acidic conditions and effect of glucose availability were studied by fluorescence ratio-imaging microscopy (FRIM) as compared with traditional viable counts. Three types of experiments were conducted: (i) static with measurements of intracellular pH (p...
journal_title：International journal of food microbiology
pub_type： 杂志文章
doi：10.1016/s0168-1605(01)00740-1
更新日期：2002-05-05 00:00:00
abstract：:Alfalfa and other seed sprouts have been implicated in several Escherichia coli O157:H7 and Salmonella spp. human illness outbreaks in the U.S. Continuing food safety issues with alfalfa seeds necessitate the need for discovery and use of novel and effective antimicrobials. The potential use of caprylic acid (CA) and ...
journal_title：International journal of food microbiology
pub_type： 杂志文章
doi：10.1016/j.ijfoodmicro.2010.09.011
更新日期：2010-11-15 00:00:00
abstract：:Cod fillets (Gadus morhua) were packed under modified atmospheres, with four different gas compositions (60% CO2-10% O2-30% N2, 60% CO2-20% O2-20% N2, 60% CO2-30% O2-10% N2, 60% CO2-40% O2), and stored at 6 degrees C. Plate counts were carried out after 3, 4, 5, 6 and 7 days, to follow the growth of aerobic and anaero...
journal_title：International journal of food microbiology
pub_type： 杂志文章
doi：10.1016/0168-1605(96)01001-x
更新日期：1996-08-01 00:00:00
abstract：:Vibrio vulnificus is the leading cause of seafood associated mortality in the United States and is generally associated with consumption of raw oysters. Two genetic markers have emerged as indicators of strain virulence, 16S rDNA type B (rrnB) and virulence correlated gene type C (vcgC). While much is known about the ...
journal_title：International journal of food microbiology
pub_type： 杂志文章
doi：10.1016/j.ijfoodmicro.2013.09.017
更新日期：2013-11-01 00:00:00
abstract：:Prophages account for most of the genetic diversity among strains of a given bacterial species, and represent a latent source for the generation of virulent phages. In this work, a set of 30 commercial, collection and dairy-isolated Lactobacillus casei group strains were used. A species-specific PCR assay allowed a re...
journal_title：International journal of food microbiology
pub_type： 杂志文章
doi：10.1016/j.ijfoodmicro.2010.11.009
更新日期：2011-01-05 00:00:00
abstract：:In this study we report the development and application of a Multiple-Locus Variable number of tandem repeat Analysis (MLVA) strategy for subtyping Listeria monocytogenes. Genome profiles of a collection of forty-five food-borne L. monocytogenes isolates were compared using MLVA. These isolates were obtained as part o...
journal_title：International journal of food microbiology
pub_type： 杂志文章
doi：10.1016/j.ijfoodmicro.2006.10.022
更新日期：2007-04-10 00:00:00
abstract：:Seafood comprising of both vertebrate and invertebrate aquatic organisms are nutritious, rich in omega-3 fatty acids, essential vitamins, proteins, minerals and form part of healthy diet. However, despite the health and nutritional benefits, seafood is highly perishable. Spoilage of seafood could be as a result of mic...
journal_title：International journal of food microbiology
pub_type： 杂志文章,评审
doi：10.1016/j.ijfoodmicro.2017.12.029
更新日期：2018-09-02 00:00:00
abstract：:Forty-three South African Torulaspora delbrueckii yeast isolates from the ARC Infruitec-Nietvoorbij yeast culture collection, the T. delbrueckii type strain (CBS 1146), one reference T. delbrueckii strain (CBS 4663), two T. delbrueckii strains isolated from commercial yeast blends (Viniflora® Harmony.nsac and Viniflor...
journal_title：International journal of food microbiology
pub_type： 杂志文章
doi：10.1016/j.ijfoodmicro.2013.02.011
更新日期：2013-05-15 00:00:00
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journal_title：International journal of food microbiology
pub_type： 杂志文章
doi：10.1016/j.ijfoodmicro.2018.05.013
更新日期：2018-09-20 00:00:00
abstract：:A risk assessment of Vibrio parahaemolyticus associated with raw oysters produced and consumed in São Paulo State was developed. The model was built according to the United States Food and Drug Administration framework for risk assessment. The outcome of the exposure assessment estimated the prevalence and density of ...
journal_title：International journal of food microbiology
pub_type： 杂志文章
doi：10.1016/j.ijfoodmicro.2014.04.008
更新日期：2014-06-16 00:00:00
abstract：:A total of 180 maize samples meant for human consumption from four maize-producing states of southwestern Nigeria were screened for twelve major Fusarium mycotoxins (trichothecenes). Mycological examination of the samples showed that Fusarium verticillioides was the most commonly isolated fungi (71%), followed by F. s...
journal_title：International journal of food microbiology
pub_type： 杂志文章
doi：10.1016/j.ijfoodmicro.2007.02.009
更新日期：2007-05-30 00:00:00
abstract：:The effect of irradiation (2 kGy) on growth of and toxin production by Staphylococcus aureus and Bacillus cereus in roast beef and gravy during storage at abuse temperatures (15 and 22 degrees C) was assessed by inoculation studies. Irradiation resulted in a 3-4 log10 reduction in numbers of both pathogens. Whenever B...
journal_title：International journal of food microbiology
pub_type： 杂志文章
doi：10.1016/0168-1605(93)90004-z
更新日期：1993-03-01 00:00:00
abstract：:The objective of this study was to evaluate the antimicrobial activity of lauric arginate (LAE) when used alone or in combination with the essential oil (EO) from cinnamon leaf and EO components, thymol and eugenol. Minimum inhibitory concentrations (MICs) and minimum bactericidal concentrations (MBCs) for Listeria mo...
journal_title：International journal of food microbiology
pub_type： 杂志文章
doi：10.1016/j.ijfoodmicro.2013.06.017
更新日期：2013-08-16 00:00:00
abstract：:In this work, psychrotrophs known to cause food spoilage were isolated from commercial food products. Further, temperature sensitivities and volatile organic compounds of the representative strains were characterized to evaluate the population heterogeneity. A total of 490 isolates belonging to 38 genera of 20 familie...
journal_title：International journal of food microbiology
pub_type： 杂志文章
doi：10.1016/j.ijfoodmicro.2018.09.026
更新日期：2019-02-02 00:00:00
abstract：:The current work evolved from a microbial survey of fruits and vegetables conducted in Norway between 1999 and 2001. This survey found that mung bean sprouts were more likely to be contaminated with Cryptosporidium and Giardia than the other produce included in the survey. To support this observation and to demonstrat...
journal_title：International journal of food microbiology
pub_type： 杂志文章
doi：10.1016/j.ijfoodmicro.2004.06.006
更新日期：2005-02-15 00:00:00
abstract：:The present study reports on the natural mycobiota occurring in cocoa beans, paying special attention to the incidence of fungal species that are potential producers of mycotoxins. The results show that predominant fungi were different species of the genus Aspergillus belonging to section Flavi and Nigri. Of the 214 s...
journal_title：International journal of food microbiology
pub_type： 杂志文章
doi：10.1016/j.ijfoodmicro.2008.04.021
更新日期：2008-07-31 00:00:00
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journal_title：International journal of food microbiology
pub_type： 杂志文章
doi：10.1016/j.ijfoodmicro.2006.08.006
更新日期：2007-03-10 00:00:00
abstract：:The effect of enhanced proteolysis on amine formation by amino acid decarboxylase positive Lactobacillus sp. during Gouda cheese ripening was examined. A commercial proteolytic enzyme preparation was added to pasteurized milk prior to cheese preparation. The effect of this manipulation on the formation of putrescine, ...
journal_title：International journal of food microbiology
pub_type： 杂志文章
doi：10.1016/s0168-1605(98)00118-4
更新日期：1998-10-20 00:00:00
abstract：:Laribacter hongkongensis, a recently discovered bacterium associated with community-acquired gastroenteritis, has been found in the intestines of freshwater fish. To better understand the epidemiology and ecology of the bacterium, we carried out a surveillance study to investigate possible seasonal variation in the re...
journal_title：International journal of food microbiology
pub_type： 杂志文章
doi：10.1016/j.ijfoodmicro.2006.07.017
更新日期：2007-01-01 00:00:00
abstract：:The effects of controlled pH and aeration on the growth of Staphylococcus aureus strain FRI-569 and production of enterotoxin H (SEH) were studied. S. aureus FRI-569 did not grow well anaerobically. Aeration permitted better growth of cells especially at a flow rate of 300 cc/min. The optimal pH for S. aureus FRI-569 ...
journal_title：International journal of food microbiology
pub_type： 杂志文章
doi：10.1016/s0168-1605(97)00118-9
更新日期：1998-01-06 00:00:00
