Abstract：
:The aim of this study was to model the effects of temperature (10-40 °C) and a(w) (0.80-0.98), in two media (Czapek yeast agar: CYA; corn extract medium: CEM) on the growth rates and growth boundaries (growth-no growth interface) of three strains of A. flavus isolated from corn in Argentina. Both kinetic and probability models were applied to colony growth data. The growth rates obtained in CYA were significantly (p<0.05) greater than those obtained in CEM medium. No significant differences (p<0.05) were observed among the three isolates. The growth rate data showed a good fit to the Rosso cardinal models combined with the gamma-concept with R(2)=0.98-0.99 and RMSE=0.60-0.78, depending on media and isolates. The probability model allowed prediction of safe storage (p of growth <0.01) for one month for moist maize (e.g. 0.90 a(w)) provided temperature is under 15 °C, or for dry maize (e.g. 0.80 a(w)) provided temperature is under 27 °C. Storage at <0.77 a(w) would be safe regardless of the storage temperature. Probability models allow evaluation of the risk of fungal contamination in the process of storage, so the results obtained in this study may be useful for application in systems of food safety management.
journal_name
Int J Food Microbioljournal_title
International journal of food microbiologyauthors
Astoreca A,Vaamonde G,Dalcero A,Ramos AJ,Marín Sdoi
10.1016/j.ijfoodmicro.2012.03.002subject
Has Abstractpub_date
2012-05-01 00:00:00pages
60-7issue
1eissn
0168-1605issn
1879-3460pii
S0168-1605(12)00121-3journal_volume
156pub_type
杂志文章abstract：:Traditionally, predictive growth models for food pathogens are developed based on experiments in broth media, resulting in models which do not incorporate the influence of food microstructure. The use of model systems with various microstructures is a promising concept to get more insight into the influence of food mi...
journal_title：International journal of food microbiology
pub_type： 杂志文章
doi：10.1016/j.ijfoodmicro.2018.05.032
更新日期：2018-10-20 00:00:00
abstract：:Sulfur dioxide is extensively used during industrial fermentations and contributes to determine the harsh conditions of winemaking together with low pH, high sugar content and increasing ethanol concentration. Therefore the presence of sulfite has to be considered in yeast gene expression studies to properly understan...
journal_title：International journal of food microbiology
pub_type： 杂志文章
doi：10.1016/j.ijfoodmicro.2015.08.012
更新日期：2015-12-23 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：:Escherichia coli O157:H7 associated with food has caused many serious public health problems in recent years. However, only viable cells of this pathogen can cause infections, and false-positive detection caused by dead cells can lead to unnecessary product recalls. The objective of this study was to develop and optim...
journal_title：International journal of food microbiology
pub_type： 杂志文章
doi：10.1016/j.ijfoodmicro.2013.10.026
更新日期：2014-01-17 00:00:00
abstract：:This study evaluated survival/growth of acid-adapted or nonadapted Escherichia coli O157:H7 inoculated (4 log CFU/wound) in wounds (10 mm deepx6 mm diameter) of apples. Wounds were inoculated with a green fluorescent protein (GFP)-expressing derivative of a rifampicin-resistant strain of E. coli O157:H7 ATCC 43895 and...
journal_title：International journal of food microbiology
pub_type： 杂志文章
doi：10.1016/s0168-1605(03)00171-5
更新日期：2004-01-01 00:00:00
abstract：:The classical concept of D and z values, established for sterilisation processes, is unable to deal with the typical non-loglinear behaviour of survivor curves occurring during the mild heat treatment of sous vide or cook-chill food products. Structural model requirements are formulated, eliminating immediately some c...
journal_title：International journal of food microbiology
pub_type： 杂志文章
doi：10.1016/s0168-1605(00)00362-7
更新日期：2000-09-10 00:00:00
abstract：:A total of 213 strains of lactic acid bacteria were examined in this study. Among these, 30 strains previously isolated from South African grape and wine samples remained unidentified. The identification of these isolates was performed by BLAST and phylogenetic analyses of 16S rDNA gene sequences, which indicated that...
journal_title：International journal of food microbiology
pub_type： 杂志文章
doi：10.1016/j.ijfoodmicro.2011.10.023
更新日期：2012-02-01 00:00:00
abstract：:Listeria monocytogenes and Escherichia coli O111 have been implicated in several outbreaks of food-borne disease linked to smallgoods products. Traditional meat starter cultures, containing a mixture of lactic acid bacteria (LAB) and staphylococci, are used to maintain safety and sensory properties of Hungarian salami...
journal_title：International journal of food microbiology
pub_type： 杂志文章
doi：10.1016/s0168-1605(02)00002-8
更新日期：2002-06-05 00:00:00
abstract：:The starter culture Penicillium roqueforti, undesired cultures Penicillium caseifulvum and Geotrichum candidum and the potential starter culture Debaryomyces hansenii were examined for their growth and interactions at environmental conditions similar to the Danish blue cheese Danablu. The combined effect of low oxygen...
journal_title：International journal of food microbiology
pub_type： 杂志文章
doi：10.1016/s0168-1605(00)00263-4
更新日期：2000-06-15 00:00:00
abstract：:The fate of Listeria monocytogenes, Salmonella Typhimurium, or Escherichia coli O157:H7 were separately monitored both in and on teewurst, a traditional raw and spreadable sausage of Germanic origin. Multi-strain cocktails of each pathogen (ca. 5.0 log CFU/g) were used to separately inoculate teewurst that was subsequ...
journal_title：International journal of food microbiology
pub_type： 杂志文章
doi：10.1016/j.ijfoodmicro.2009.01.037
更新日期：2009-04-15 00:00:00
abstract：:The demand for sugar reduction in products across the food and beverage industries has evoked the development of novel processes including the application of fermentation with lactic acid bacteria. Heterofermentative lactic acid bacteria (LAB) are diverse in their ability to utilise fermentable sugars and can also con...
journal_title：International journal of food microbiology
pub_type： 杂志文章
doi：10.1016/j.ijfoodmicro.2020.108546
更新日期：2020-05-16 00:00:00
abstract：:NASBA, an isothermal nucleic acid amplification system was used for identification of Listeria monocytogenes. A primer set and a species-specific probe were selected from the 16S rRNA sequence. The probe was shown to hybridize specifically to the amplified single-stranded RNA of L. monocytogenes. No hybridization occu...
journal_title：International journal of food microbiology
pub_type： 杂志文章
doi：10.1016/0168-1605(95)00166-h
更新日期：1995-09-01 00:00:00
abstract：:The effect of cinnamon, clove, oregano, palmarose and lemongrass oils on growth and FB1 production by three different isolates of F. proliferatum in irradiated maize grain at 0.995 and 0.950 aw and at 20 and 30 degrees C was evaluated. The five essential oils inhibited growth of F. proliferatum isolates at 0.995 aw at...
journal_title：International journal of food microbiology
pub_type： 杂志文章
doi：10.1016/s0168-1605(03)00116-8
更新日期：2003-12-31 00:00:00
abstract：:The transmission pathways of Helicobacter pylori in humans have not been fully elucidated. Research in the last decade has proposed that foodborne transmission, among others, may be a plausible route of human infection. Owing to the organism's fastidious growth characteristics and its ability to convert to viable, yet...
journal_title：International journal of food microbiology
pub_type： 杂志文章
doi：10.1016/j.ijfoodmicro.2011.09.007
更新日期：2011-12-02 00:00:00
abstract：:The knowledge of toxigenic profiles of fungal plant pathogens is of extreme importance for evaluating the potential toxicity of infected plant products. Ninety-six fungal isolates belonging to 28 species in the Gibberella fujikuroi complex were studied for the production of beauvericin, enniatins and fusaproliferin in...
journal_title：International journal of food microbiology
pub_type： 杂志文章
doi：10.1016/j.ijfoodmicro.2007.07.004
更新日期：2007-09-15 00:00:00
abstract：:Unidentified heterofermentative lactic acid bacterium (LAB) isolates detected earlier in vacuum or modified atmosphere (MA) packaged "Morcilla de Burgos", a Spanish cooked meat product, were identified in the present study. In the previous study, these strains had been studied by numerical analysis of HindIII RFLP- an...
journal_title：International journal of food microbiology
pub_type： 杂志文章
doi：10.1016/j.ijfoodmicro.2006.01.021
更新日期：2006-05-25 00:00:00
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 themsel...
journal_title：International journal of food microbiology
pub_type： 杂志文章
doi：10.1016/s0168-1605(00)00177-x
更新日期：2000-04-10 00:00:00
abstract：:The performance of hazard analyses and the establishment of critical limits by the food industry are both hampered by the inability to directly relate food processing operations from farm-to-table with their public health impact. Using a 'unit operations' and stochastic simulation approach, data on the frequency of pa...
journal_title：International journal of food microbiology
pub_type： 杂志文章
doi：10.1016/s0168-1605(97)01262-2
更新日期：1997-05-20 00:00:00
abstract：:Throughout wine production yeast cells are affected by a plethora of stress conditions that compromise their ability to carry out the whole process. In recent years important knowledge about the mechanisms involved in stress response in both laboratory and wine yeast strains has been obtained. Several studies have ind...
journal_title：International journal of food microbiology
pub_type： 杂志文章
doi：10.1016/j.ijfoodmicro.2009.01.017
更新日期：2009-03-31 00:00:00
abstract：:A rapid Endospore Viability Assay (EVA), previously developed for Bacillus spores, was modified for enumeration of germinable Clostridium sporogenes spores. The EVA is based on the detection of dipicolinic acid (DPA), which is released during stage I germination and quantified by terbium (III) ion Tb-DPA luminescence....
journal_title：International journal of food microbiology
pub_type： 杂志文章
doi：10.1016/j.ijfoodmicro.2009.04.024
更新日期：2009-08-15 00:00:00
abstract：:The objective of this study was to develop a method that combined nanoparticle-based immunomagnetic separation (IMS) with real-time loop-mediated isothermal amplification (LAMP) for the rapid detection of Vibrio parahaemolyticus. Magnetic nanoparticles were functionalized with monoclonal antibodies that were produced ...
journal_title：International journal of food microbiology
pub_type： 杂志文章
doi：10.1016/j.ijfoodmicro.2014.01.004
更新日期：2014-03-17 00:00:00
abstract：:Two methods of enumerating enterococci in foods were compared in a collaborative study. Thirteen laboratories tested four blind duplicate samples containing different levels of enterococci and two negative control samples. Freeze-dried mixtures of bacteria were used as simulated food samples. The freeze-dried samples ...
journal_title：International journal of food microbiology
pub_type： 杂志文章
doi：10.1016/0168-1605(93)90046-j
更新日期：1993-05-01 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：:Genetically modified microorganisms (GMMs) are involved in the production of a variety of food and feed. The release and consumption of these products can raise questions about health and environmental safety. Therefore, the European Union has different legislative instruments in place in order to ensure the safety of...
journal_title：International journal of food microbiology
pub_type： 杂志文章
doi：10.1016/j.ijfoodmicro.2013.03.013
更新日期：2013-10-01 00:00:00
abstract：:The objective of this study is to determine the interactions between high hydrostatic pressure, pressurization temperature, time and pH during pressurization on death and injury of pressure-resistant and pressure-sensitive strains of four foodborne pathogens: Staphylococcus aureus 485 and 765, Listeria ,monocytogenes ...
journal_title：International journal of food microbiology
pub_type： 杂志文章
doi：10.1016/s0168-1605(00)00324-x
更新日期：2000-09-15 00:00:00
abstract：:Repeated Listeria outbreaks particularly associated with Ready-To-Eat (RTE) delicatessen meat products have been reported annually at global level. The most frequent scenario that led to foodborne outbreaks was the post-thermal treatment cross-contamination of deli meat products during slicing and modified atmosphere ...
journal_title：International journal of food microbiology
pub_type： 杂志文章
doi：10.1016/j.ijfoodmicro.2017.06.015
更新日期：2017-09-18 00:00:00
abstract：:Occurrence and importance of psychrotolerant histamine producing bacteria in chilled fresh tuna were demonstrated in the present study. The objective was to evaluate microbial formation of histamine and biogenic amines in chilled fresh tuna from the Indian Ocean and stored either vacuum-packed (VP) or modified atmosph...
journal_title：International journal of food microbiology
pub_type： 杂志文章
doi：10.1016/j.ijfoodmicro.2004.12.001
更新日期：2005-06-15 00:00:00
abstract：:The inactivation of Salmonella Senftenberg 775W by ultrasonic waves (20 kHz, 117 microm) under pressure (175 kPa) treatments at sublethal (manosonication; MS) and lethal temperatures (manothermosonication; MTS) in media of different water activities has been investigated. Heat decimal reduction time values increased u...
journal_title：International journal of food microbiology
pub_type： 杂志文章
doi：10.1016/j.ijfoodmicro.2005.11.011
更新日期：2006-04-25 00:00:00
abstract：:The aim of the current study was to improve the antifungal activity of eight lactic acid bacterial (LAB) strains by the addition of phenylpyruvic acid (PPA), a precursor of the antifungal compound phenyllactic acid (PLA), to a defined growth medium (DM). The effect of PPA addition on the LABs antifungal activity relat...
journal_title：International journal of food microbiology
pub_type： 杂志文章
doi：10.1016/j.ijfoodmicro.2016.01.011
更新日期：2016-04-02 00:00:00
abstract：:Production of patulin and cytochalasin E by four strains of Aspergillus clavatus during small-scale laboratory malting of barley at 16 and 25 degrees C was investigated. Fungal biomass, measured as ergosterol, appeared to be greater at 25 than at 16 degrees C, but marked differences were observed between the degree of...
journal_title：International journal of food microbiology
pub_type： 杂志文章
doi：10.1016/s0168-1605(96)01211-1
更新日期：1997-04-01 00:00:00
