Abstract：
:In this paper we develop a maximum likelihood estimation procedure for determining the mean and variance in microbial population size from microbial population measurements subject to a detection limit. Existing estimation methods generally set non-detectable measurements equal to the detection limit and are highly biased. Because changes in the mean and variance in the microbial population size are typical in industrial processes we also outline statistical tests for detecting such changes when measurements are subject to a detection limit, which is critical for process control. In an industrial process there may also potentially be variability in the microbial growth rate due to variation in the microbial strain, environment, and food characteristics. Accordingly, we also present a maximum likelihood procedure for estimating microbial growth model parameters and their variance components from microbial population measurements subject to a detection limit. Such information can be used to generate the mean and variance through time of the microbial population size, which is vital for the application of predictive microbiological models to risk assessment and food product shelf-life estimation.
journal_name
Int J Food Microbioljournal_title
International journal of food microbiologyauthors
Shorten PR,Pleasants AB,Soboleva TKdoi
10.1016/j.ijfoodmicro.2005.11.024subject
Has Abstractpub_date
2006-05-01 00:00:00pages
369-75issue
3eissn
0168-1605issn
1879-3460pii
S0168-1605(06)00048-1journal_volume
108pub_type
杂志文章abstract：:The effectiveness of Lactobacillus casei CRL 705 as well as that of Lactocin 705, the associated bacteriocin produced, in reducing population levels and growth of Listeria monocytogenes in sterile and non-sterile ground beef was studied. Predetermined numbers of L. monocytogenes and concentrations of Lactocin 705 were...
journal_title：International journal of food microbiology
pub_type： 杂志文章
doi：10.1016/0168-1605(95)00038-0
更新日期：1996-04-01 00:00:00
abstract：:Integrated hygiene and food safety management systems in food production can give rise to exceptional improvements in food safety performance, but require high level commitment and full functional involvement. A new approach, named hygieneomics, has been developed to assist management in their introduction of hygiene ...
journal_title：International journal of food microbiology
pub_type： 杂志文章,评审
doi：10.1016/s0168-1605(99)00073-2
更新日期：1999-09-15 00:00:00
abstract：:Macrolides are regarded as drugs of choice for treatment of human campylobacteriosis. The use of antimicrobials for this purpose as well as in food animal production could result in macrolide resistance in Campylobacter species. Campylobacter isolates exhibit two different phenotypes with regard to erythromycin resist...
journal_title：International journal of food microbiology
pub_type： 杂志文章
doi：10.1016/j.ijfoodmicro.2007.03.012
更新日期：2007-11-30 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：:It was the objective of this work to evaluate the effect of high pressure homogenization on the activity of antimicrobial enzymes such as lysozyme and lactoperoxidase against a selected group of Gram positive and Gram negative species inoculated in skim milk. Lactobacillus helveticus, Lactobacillus plantarum and Liste...
journal_title：International journal of food microbiology
pub_type： 杂志文章
doi：10.1016/j.ijfoodmicro.2004.01.005
更新日期：2004-07-15 00:00:00
abstract：:Salmonella can survive in low-moisture foods for long periods of time. Reduced microbial inactivation during heating is believed to be due to the interaction of cells and water, and is thought to be related to water activity (a(w)). Little is known about the role of water mobility in influencing the survival of Salmon...
journal_title：International journal of food microbiology
pub_type： 杂志文章
doi：10.1016/j.ijfoodmicro.2013.07.007
更新日期：2013-09-02 00:00:00
abstract：:Salmonellosis is a challenge to public health globally, and many infections have been principally linked to the consumption of contaminated eggs. The objective of this study is to estimate the prevalence of Salmonella in commercial eggs and susceptibilities of isolates to a panel of 14 antimicrobial agents which were ...
journal_title：International journal of food microbiology
pub_type： 杂志文章
doi：10.1016/j.ijfoodmicro.2020.108623
更新日期：2020-07-16 00:00:00
abstract：:In the present study, a high throughput whole cell SELEX method has been applied successfully in selecting specific aptamers against whole cells of Staphylococcus aureus, a potent food poisoning bacterium. A total ten rounds of SELEX and three rounds of intermittent counter SELEX, was performed to obtain specific apta...
journal_title：International journal of food microbiology
pub_type： 杂志文章
doi：10.1016/j.ijfoodmicro.2017.11.002
更新日期：2018-01-16 00:00:00
abstract：:Dutch broiler flocks are routinely tested for the presence of thermotolerant Campylobacter spp. using a standard cultural procedure for fecal and cecal samples. The objective of this study was to estimate the sensitivity and specificity of fecal and cecal culture for detection of Campylobacter colonization in broiler ...
journal_title：International journal of food microbiology
pub_type： 杂志文章
doi：10.1016/j.ijfoodmicro.2007.11.011
更新日期：2008-02-10 00:00:00
abstract：:Carnobacterium piscicola LV 61 produces a bacteriocin designated piscicolin 61, that is heat resistant, active over a wide pH range and inactivated by alpha-chymotrypsin, pepsin, trypsin and papain. It is effective against strains of the genera Carnobacterium, Enterococcus and Listeria. Other lactic acid bacteria test...
journal_title：International journal of food microbiology
pub_type： 杂志文章
doi：10.1016/0168-1605(93)90106-q
更新日期：1993-11-26 00:00:00
abstract：:Mytilus galloprovincialis is one of the most commonly consumed of all bivalve molluscs. The consumption of raw bivalve molluscs has caused outbreaks of food poisoning due to Vibrio parahaemolyticus and Vibrio vulnificus. This paper reports the results of a survey on the presence of V. parahaemolyticus, V. vulnificus f...
journal_title：International journal of food microbiology
pub_type： 杂志文章
doi：10.1016/j.ijfoodmicro.2005.05.020
更新日期：2006-02-01 00:00:00
abstract：:Listeria monocytogenes is a food-borne pathogen that can persist for years in food processing plants. It has been hypothesized that this could be due to the development of tolerance or resistance to the disinfectants used. The purpose of the present study was to determine whether biocide resistance or tolerance would ...
journal_title：International journal of food microbiology
pub_type： 杂志文章
doi：10.1016/j.ijfoodmicro.2012.09.009
更新日期：2012-11-01 00:00:00
abstract：:The aim of this study was to determine the putative modes of action of 59 viticultural yeasts (31 Saccharomyces and 28 non-Saccharomyces) that inhibited fungi isolated from sour and grey rot in grapes. Inhibition of fungal mycelial growth by metabolites, enzyme activities (laminarinases, chitinases), antifungal volati...
journal_title：International journal of food microbiology
pub_type： 杂志文章
doi：10.1016/j.ijfoodmicro.2015.03.024
更新日期：2015-07-02 00:00:00
abstract：:This article describes the contamination of pork with Salmonella spp. in cutting plants and butchers' shops in The Netherlands and quantifies the influence of several risk factors. When contaminated carcasses are being processed, the main risk factors regarding cross contamination are inapt cleaning and disinfection (...
journal_title：International journal of food microbiology
pub_type： 杂志文章
doi：10.1016/s0168-1605(98)00122-6
更新日期：1998-11-10 00:00:00
abstract：:The effects of different temperatures on the growth and toxin production of Aeromonas hydrophila and Aeromonas sobria were studied. The results showed that these Aeromonas species are not only able to grow at low temperatures (e.g. at 4 and 10 degrees C) but may also produce cytotoxin, hemolysin and enterotoxin under ...
journal_title：International journal of food microbiology
pub_type： 杂志文章
doi：10.1016/0168-1605(91)90058-w
更新日期：1991-06-01 00:00:00
abstract：:Toxoplasma gondii is recognized as a widely prevalent zoonotic parasite worldwide. Although several studies clearly identified meat products as an important source of T. gondii infections in humans, quantitative understanding of the risk posed to humans through the food chain is surprisingly scant. While probabilistic...
journal_title：International journal of food microbiology
pub_type： 杂志文章
doi：10.1016/j.ijfoodmicro.2016.12.010
更新日期：2017-11-16 00:00:00
abstract：:Lactoferrin (LF), an 80 kDa iron binding glycoprotein, was effective in the control of gray mould caused by Botrytis cinerea on tomato. LF strongly inhibited spore germination and germ tube elongation of B. cinerea in vitro, especially at 100 mg/L. When viewed by fluorescence microscopy following staining with propidi...
journal_title：International journal of food microbiology
pub_type： 杂志文章
doi：10.1016/j.ijfoodmicro.2012.11.025
更新日期：2013-02-15 00:00:00
abstract：:P. fluorescens is responsible for the highest depredation of milk because of its capacity to synthesize extracellular lipase and protease which hydrolyze milk fat and proteins. Several P. fluorescens synthesize an extracellular caseinolytic metalloprotease, called AprX. It is important to rapidly detect the presence o...
journal_title：International journal of food microbiology
pub_type： 杂志文章
doi：10.1016/j.ijfoodmicro.2008.04.004
更新日期：2008-07-15 00:00:00
abstract：:Intestinal epithelial cells (IECs) provide a primary physical barrier against commensal and pathogenic bacteria, but the influence of IECs in the regulation of the associated mucosal immune system remains largely unknown. The network of dendritic cells (DCs) in the vicinity of IECs is known to play a crucial role in t...
journal_title：International journal of food microbiology
pub_type： 杂志文章
doi：10.1016/j.ijfoodmicro.2008.12.037
更新日期：2009-04-30 00:00:00
abstract：:Of 126 samples of fresh and spoiled meat and dairy products, 40% were positive for the presence of Moraxella-like bacteria and 64% of Acinetobacter; 279 and 466 strains, respectively, were isolated and a part of these were tested by biochemical methods and DNA transformation assays. In some cases, the Moraxellaceae in...
journal_title：International journal of food microbiology
pub_type： 杂志文章
doi：10.1016/0168-1605(92)90136-q
更新日期：1992-01-01 00:00:00
abstract：:An incident of histamine fish poisoning (HFP) occurred due to the consumption of iwashi maruboshi (dried sardine) in Osaka, Japan in March 2002. A histamine-producing bacterial strain, YS4-7, was isolated from iwashi maruboshi that contained 1700 mg of histamine per kilogram. This strain was identified as Photobacteri...
journal_title：International journal of food microbiology
pub_type： 杂志文章
doi：10.1016/j.ijfoodmicro.2003.08.019
更新日期：2004-04-01 00:00:00
abstract：:In contaminated fish, bacterial decarboxylases produce histamine from histidine, thereby causing scombroid fish poisoning. European Regulation (EC) No 2073/2005 on microbiological criteria for foodstuffs requires using a fully validated, standardized reference HPLC method for detecting and quantifying histamine. After...
journal_title：International journal of food microbiology
pub_type： 杂志文章
doi：10.1016/j.ijfoodmicro.2018.07.023
更新日期：2019-01-02 00:00:00
abstract：:The aim of this study was to identify a potential surrogate to describe the radiation sensitivity of the most common pathogens encountered in fruits. Three pathogens: Escherichia coli O157:H7 933, Listeria monocytogenes ATCC 51414, and Salmonella Poona, and five non-pathogens: E. coli K-12 MG1655, Listeria innocua See...
journal_title：International journal of food microbiology
pub_type： 杂志文章
doi：10.1016/j.ijfoodmicro.2006.01.041
更新日期：2006-07-15 00:00:00
abstract：:Many food and meat processors test environmental swabs and sponges to confirm the absence of Listeria spp. Spectral pattern changes in a liquid growth medium, resulting from esculin hydrolysis by Listeria in contaminated swabs and sponges, were automatically monitored by the BioSys instrument in a semifluid layer (SFL...
journal_title：International journal of food microbiology
pub_type： 杂志文章
doi：10.1016/s0168-1605(99)00207-x
更新日期：2000-06-01 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：:The genus Vibrio now includes a large number of species. Clear evidence is only available for the aetiological role of V. cholerae, V. vulnificus and V. parahaemolyticus in foodborne diseases. Until recently, V. cholerae serogroup 0:1 was accepted as the cause of epidemic cholera. However, the designation of outbreaks...
journal_title：International journal of food microbiology
pub_type： 杂志文章,评审
doi：10.1016/0168-1605(95)00015-c
更新日期：1995-06-01 00:00:00
abstract：:Listeria monocytogenes is a foodborne pathogen whose biofilm formation and desiccation tolerance may contribute to its survival in the food industry. L. monocytogenes possesses three cold-shock domain family proteins (CspA, CspB and CspD) known to be essential for adaptation against various food-relevant stress condit...
journal_title：International journal of food microbiology
pub_type： 杂志文章
doi：10.1016/j.ijfoodmicro.2020.108662
更新日期：2020-09-16 00:00:00
abstract：:Inactivation of inoculated Escherichia coli O157:H7, Listeria monocytogenes, Salmonella enterica and Shigella flexneri on whole cantaloupes using X-ray at different doses (0.1, 0.5, 1.0, 1.5, and 2.0 kGy) was studied. The effect of X-ray on quality parameters (color and texture) of untreated and treated whole cantalou...
journal_title：International journal of food microbiology
pub_type： 杂志文章
doi：10.1016/j.ijfoodmicro.2012.04.001
更新日期：2012-06-01 00:00:00
abstract：:Systematics and identification play central roles in any discipline of microbiology. The current prokaryotic taxonomic framework as proposed in Bergey's Manual of Systematic Bacteriology is mainly based on small subunit rRNA data. Alternative markers representing the conserved core of the prokaryotic genomes roughly s...
journal_title：International journal of food microbiology
pub_type： 杂志文章,评审
doi：10.1016/j.ijfoodmicro.2007.06.023
更新日期：2007-12-15 00:00:00
abstract：:Of 85 strains of Bacillus cereus isolated in Norway from dairy products, 59% were found to be enterotoxigenic, and 15% were psychrotrophic. Six of the isolates (7%) were identified as potential psychrotrophic food-poisoning strains as they were both enterotoxigenic and exhibited good growth at 6 degrees C. Enterotoxin...
journal_title：International journal of food microbiology
pub_type： 杂志文章
doi：10.1016/0168-1605(93)90197-o
更新日期：1993-02-01 00:00:00
