Abstract：
:Plastic materials used for food packaging are clean but not sterile when the food is just packaged. Accidental wet contamination may occur at every moment between packaging and opening by the consumer: on polyethylene (PET), bacteria may adhere strongly and constitute a biofilm in less than 24 h. By rolling on themselves, PET sheets may contaminate food. We tried to show that contact with salted foodstuffs favoured microbial recovery. Four strains were chosen to perform biofilms on PET: Staphylococcus aureus, Staphylococcus epidermidis, Pseudomonas aeruginosa and Escherichia coli. Biofilms were dried up 24 h. Biofilm bacteria were stressed by adhesion, by starvation and by dehydration. However, they were capable of recovery in salted solutions or media, probably because one (or more) stress protected them against another stress. Stress was demonstrated by stress protein production, by mean of electrophoresis, and membrane lesions by mean of flow cytometry. Stress recovery was performed in aqueous salted solutions or salted brain-heart infusion with NaCl 9, 15, 20 and 30 g/l. Staphylococci were more sensitive to these stresses and recovery was a function of salt concentration. Gram-negative bacteria were little affected by stresses; salt effects were less important. If all these biofilms were capable of recovery from stresses in salted media, flexible PET could possibly lead to a health hazard when it is used for wet salt meats, e.g.
journal_name
Int J Food Microbioljournal_title
International journal of food microbiologyauthors
Le Magrex-Debar E,Lemoine J,Gellé MP,Jacquelin LF,Choisy Cdoi
10.1016/s0168-1605(00)00177-xsubject
Has Abstractpub_date
2000-04-10 00:00:00pages
239-43issue
1-3eissn
0168-1605issn
1879-3460pii
S0168-1605(00)00177-Xjournal_volume
55pub_type
杂志文章abstract：:Infection with human norovirus (HuNoV) is considered a common cause of foodborne illness worldwide. Foodborne HuNoV outbreaks may result from consumption of food contaminated by an infected food handler in the foodservice environment, in which bare-hand contact, lack of hand washing, and inadequate cleaning and disinf...
journal_title：International journal of food microbiology
pub_type： 杂志文章
doi：10.1016/j.ijfoodmicro.2014.12.023
更新日期：2015-04-02 00:00:00
abstract：:Outgrowth heterogeneity of bacterial spore populations complicates both prediction and efficient control of spore outgrowth. In this study, the impact of mild preservation stresses on outgrowth of Bacillus cereus ATCC 14579 spores was quantified during the first stages of outgrowth. Heterogeneity in outgrowth of heat-...
journal_title：International journal of food microbiology
pub_type： 杂志文章
doi：10.1016/j.ijfoodmicro.2014.02.015
更新日期：2014-05-02 00:00:00
abstract：:Thirty two weaned pigs (24 d-old) were fed a diet without or with 1% (w/w) thymol. Pigs from each dietary treatment remained unchallenged or were challenged with Salmonella enterica serovar typhimurium. Jejunal content was collected and molecular microbial diversity was investigated using 16S rRNA gene polymerase chai...
journal_title：International journal of food microbiology
pub_type： 杂志文章
doi：10.1016/j.ijfoodmicro.2008.05.035
更新日期：2008-08-15 00:00:00
abstract：:The purpose of this study was to quantify the lag time of re-growth of heated spores of Bacillus cereus as a function of the conditions of the heat treatment: temperature, duration and pH of the recovery medium. For a given heating temperature, curves plotting lag times versus time of heating show more or less complex...
journal_title：International journal of food microbiology
pub_type： 杂志文章
doi：10.1016/j.ijfoodmicro.2005.04.009
更新日期：2005-11-15 00:00:00
abstract：:The natural contamination of foods with a bacterial pathogen frequently consists of a mixture of strains with their own characteristics of survival, growth potential and virulence. Quantitative Microbial Risk Assessment (QMRA) must account for this genetic diversity to reflect the variability of the pathogen risk and ...
journal_title：International journal of food microbiology
pub_type： 杂志文章
doi：10.1016/j.ijfoodmicro.2008.07.028
更新日期：2008-11-30 00:00:00
abstract：:Cattle are a reservoir for enterohemorrhagic Escherichia coli (EHEC), and ground beef is a major vehicle for human infection with EHEC. Heat resistance of E. coli, including EHEC, is impacted by NaCl and other additives. This study aimed to evaluate the effect of NaCl and other additives on the heat resistance of E. c...
journal_title：International journal of food microbiology
pub_type： 杂志文章
doi：10.1016/j.ijfoodmicro.2019.108308
更新日期：2019-11-02 00:00:00
abstract：:Aspergillus section Nigri populations isolated from seven growing regions from Argentina were characterized by sequencing in order to identify species responsible for production of ochratoxin A (OTA) and fumonisins (FB(s)). Sequences of genes encoding calmodulin, β-tubulin, the second largest subunit of RNA polymerase...
journal_title：International journal of food microbiology
pub_type： 杂志文章
doi：10.1016/j.ijfoodmicro.2011.06.002
更新日期：2011-09-15 00:00:00
abstract：:Different physicochemical and microbiological characteristics of cheeses may affect Listeria monocytogenes potential to grow, survive, or exhibit an acid adaptive response during storage and digestion. The objectives of the present study were to assess: i) the survival or growth potential of L.monocytogenes on various...
journal_title：International journal of food microbiology
pub_type： 杂志文章
doi：10.1016/j.ijfoodmicro.2017.01.015
更新日期：2017-04-04 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：:The emerging pathogen Arcobacter butzleri is being increasingly isolated from different animal food products but the routes of its transmission to human are not well established yet. Typing methods would be useful in gaining such knowledge. Here we report the great genetic diversity observed among A. butzleri isolates...
journal_title：International journal of food microbiology
pub_type： 杂志文章
doi：10.1016/j.ijfoodmicro.2014.09.012
更新日期：2014-11-17 00:00:00
abstract：:Amplified fragment length polymorphism (AFLP) analysis was performed on isolates of Penicillium commune and Penicillium palitans originating from cheese and indoor environment in four cheese factories. The AFLP method was found to be a useful tool for identification of P. commune and P. palitans on, as well as below, ...
journal_title：International journal of food microbiology
pub_type： 杂志文章
doi：10.1016/s0168-1605(02)00373-2
更新日期：2003-06-15 00:00:00
abstract：:Dry-cured sausages are colonised by moulds during the ripening process. The temperature and the salt content (which affects water activity, aw) predispose the surface to colonisation by Penicillium species, including Penicillium nordicum and Penicillium verrucosum which can lead to contamination of the sausages with o...
journal_title：International journal of food microbiology
pub_type： 杂志文章
doi：10.1016/j.ijfoodmicro.2014.11.014
更新日期：2015-02-02 00:00:00
abstract：:An innovative approach to Post-Harvest Processing (PHP) of oysters is introduced focusing on the effects of supercritical carbon dioxide (scCO(2)) on bacterial contaminants trapped in the digestive system of oysters. Oysters were exposed to scCO(2) under two conditions: (1) 100 bar and 37 degrees C for 30 min and (2) ...
journal_title：International journal of food microbiology
pub_type： 杂志文章
doi：10.1016/j.ijfoodmicro.2009.11.012
更新日期：2010-03-31 00:00:00
abstract：:Kudoa septempunctata is a newly identified myxosporean parasite that infects the trunk muscles of olive flounder (Paralichthys olivaceus) and a causative agent of the increasing number of foodborne gastroenteritis outbreaks with unknown etiology which have occurred in Japan over the last few years. Here, we developed ...
journal_title：International journal of food microbiology
pub_type： 杂志文章
doi：10.1016/j.ijfoodmicro.2012.03.018
更新日期：2012-05-15 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 spoilage potential of several Psychrobacter and Pseudoalteromonas species (Psychrobacter cibarius, Psychrobacter maritimus, Pseudoalteromonas elyakovii, Pseudoalteromonas paragorgicola and Pseudoalteromonas nigrifaciens) was determined and quantified based on the presence of volatile organic compounds (VOCs). Psyc...
journal_title：International journal of food microbiology
pub_type： 杂志文章
doi：10.1016/j.ijfoodmicro.2013.08.013
更新日期：2013-09-16 00:00:00
abstract：:Salmonella enterica is a major human pathogen that is responsible for 23,000 hospitalizations annually in the United States. Contact with contaminated pet food and infected companion animals can transmit salmonellosis to humans. Recent multistate human outbreaks of salmonellosis linked to commercial contaminated dry d...
journal_title：International journal of food microbiology
pub_type： 杂志文章
doi：10.1016/j.ijfoodmicro.2019.02.007
更新日期：2019-05-02 00:00:00
abstract：:The human noroviruses are the most common non-bacterial cause of gastroenteritis and are responsible for as much as 50% of all gastroenteritis outbreaks worldwide. Norovirus (NoV), a single stranded RNA virus, is highly contagious with an infectious dose of less than 100 viral particles. While techniques exist for the...
journal_title：International journal of food microbiology
pub_type： 杂志文章
doi：10.1016/j.ijfoodmicro.2013.01.011
更新日期：2013-03-15 00:00:00
abstract：:The formation of B-vitamins (nicotinic acid and nicotinamide, thiamine, vitamin B6 and vitamin B12) during the soaking of soybeans by bacteria, isolated from tempe, was investigated. Among the isolates examined no vitamin B6 producer was found. After inoculation of the soaking soybeans with Citrobacter freundii, Klebs...
journal_title：International journal of food microbiology
pub_type： 杂志文章
doi：10.1016/0168-1605(94)90004-3
更新日期：1994-04-01 00:00:00
abstract：:Escherichia coli O157:H7 outbreaks associated with produce consumption have brought attention to contaminated compost manure, and polluted irrigation water as potential sources of pathogens for the contamination of these crops. The aim of this study was to determine the potential transfer of E. coli O157:H7 from soil ...
journal_title：International journal of food microbiology
pub_type： 杂志文章
doi：10.1016/j.ijfoodmicro.2012.03.014
更新日期：2012-05-15 00:00:00
abstract：:Edible antimicrobial composite films from micro-emulsions containing all natural compounds were developed and their antimicrobial properties and microstructures were investigated. Chitosan, allyl isothiocyanate (AIT), barley straw arabinoxylan (BSAX), and organic acids (acetic, lactic and levulinic acids) were used as...
journal_title：International journal of food microbiology
pub_type： 杂志文章
doi：10.1016/j.ijfoodmicro.2015.03.018
更新日期：2015-09-02 00:00:00
abstract：:Critical control points (CCPs) associated with Minas Frescal cheese (a Brazilian soft white cheese, eaten fresh) processing in two dairy factories were determined using flow diagrams and microbiological tests for detection of Listeria monocytogenes and other species of Listeria. A total of 218 samples were collected a...
journal_title：International journal of food microbiology
pub_type： 杂志文章
doi：10.1016/s0168-1605(02)00223-4
更新日期：2003-03-25 00:00:00
abstract：:The antibacterial activity of selected fatty acids and essential oils was examined against two gram-negative (Pseudomonas fluorescens and Serratia liquefaciens) and four gram-positive (Brochothrix thermosphacta, Carnobacterium piscicola, Lactobacillus curvatus, and Lactobacillus sake) bacteria involved in meat spoilag...
journal_title：International journal of food microbiology
pub_type： 杂志文章
doi：10.1016/s0168-1605(97)00070-6
更新日期：1997-07-22 00:00:00
abstract：:This study quantified and modeled the survival of Escherichia coli O157:H7, Listeria monocytogenes and Salmonella Typhimurium in soudjouk-style fermented sausage during fermentation, drying, and storage. Batter prepared from ground beef (20% fat), seasonings, starter culture, and dextrose was separately inoculated wit...
journal_title：International journal of food microbiology
pub_type： 杂志文章
doi：10.1016/j.ijfoodmicro.2008.12.003
更新日期：2009-02-28 00:00:00
abstract：:Pectinase enzymes have shown a considerable influence in both, sensitive and technological properties of wines. They can help to improve clarification process, releasing more color and flavor compounds entrapped in grape skin, facilitating the liberation of phenolic compounds. This work aims to find yeasts that, becau...
journal_title：International journal of food microbiology
pub_type： 杂志文章
doi：10.1016/j.ijfoodmicro.2016.02.003
更新日期：2016-04-16 00:00:00
abstract：:Thirty samples of paddy rice and twenty-five of milled rice were obtained from processing centers located in two northern Provinces of Argentina and one southern Province of Paraguay. Contaminating fungi were enumerated by direct plating on dichloran rose bengal chloramphenicol agar and oxytetracycline glucose yeast e...
journal_title：International journal of food microbiology
pub_type： 杂志文章
doi：10.1016/s0168-1605(97)00066-4
更新日期：1997-07-22 00:00:00
abstract：:This study aimed to track Yersinia enterocolitica contamination in a pork production chain in Minas Gerais, Brazil, and to characterize the virulence and antibiotic resistance of isolates. Samples were collected from four different steps of the pork production chain (pig farm, carcass, processing environment and end p...
journal_title：International journal of food microbiology
pub_type： 杂志文章
doi：10.1016/j.ijfoodmicro.2018.03.028
更新日期：2018-07-02 00:00:00
abstract：:The biotechnological and safety properties of the novel enterococcal species of dairy origin, Enterococcus italicus, were investigated. The strains of the species showed technological characteristics related to their use as adjunct cultures in the production of artisanal cheeses. They were susceptible or poorly resist...
journal_title：International journal of food microbiology
pub_type： 杂志文章
doi：10.1016/j.ijfoodmicro.2008.01.014
更新日期：2008-04-30 00:00:00
abstract：:The epidemiology of Q-fever in Switzerland is largely unknown. For this reason, a screening programme for the presence of Coxiella burnetii in bulk milk samples from cows, sheep and goats and in shell eggs produced in and imported into Switzerland was conducted. In total, 17 of 359 (4.7%) of analysed bovine milk sampl...
journal_title：International journal of food microbiology
pub_type： 杂志文章
doi：10.1016/j.ijfoodmicro.2007.03.001
更新日期：2007-05-30 00:00:00
abstract：:Two Aureobasidium pullulans strains (L1 and L8), able to prevent postharvest fruit decay, were evaluated in order to elucidate how the competition for nutrients and space was involved in their activity against Monilinia laxa, the causal agent of peach brown rot. The competition for nutrients was studied by co-culturin...
journal_title：International journal of food microbiology
pub_type： 杂志文章
doi：10.1016/j.ijfoodmicro.2017.02.007
更新日期：2017-05-02 00:00:00
