Abstract：
:The objective of this study was to develop a predictive model for the inactivation of Salmonella spp. in ground beef jerky as a function of temperature (T), pH, potassium sorbate (PS), and final water activity (aw). Following a central composite design, ground beef was combined with PS (0 to 0.3%, w/w), pH adjusted from 5 to 7, inoculated with a cocktail of 6 serotypes of Salmonella spp. and heat processed at temperatures between 65 and 85°C until the final aw ranging from 0.65 to 0.85 was achieved. Surviving Salmonella cells were enumerated on tryptic soy agar overlaid with xylose lysine deoxycholate agar (pre-tempered to 47°C) after incubation for 48h at 30°C. Bacterial inactivation was quantified in terms of logarithmic reductions of Salmonella counts (log10CFU/g) and inactivation rate (log10(CFU/g)/h). The results indicated that pH, PS and T significantly (p<0.05) interacted to inactivate Salmonella in beef jerky. Decreasing meat pH significantly (p<0.05) increased the efficacy of PS and T to reduce the levels of Salmonella spp. Beef jerky processed at 82°C, pH5.5, with 0.25% PS to a final aw of 0.7 resulted in a maximum Salmonella logarithmic reduction of 5.0log10CFU/g and an inactivation rate of 1.3log10(CFU/g)/h. The predictive model developed can be used to effectively design drying processes for beef jerky under low humidity conditions and thereby, ensuring an adequate degree of protection against risks associated with Salmonella spp.
journal_name
Int J Food Microbioljournal_title
International journal of food microbiologyauthors
Juneja VK,Valenzuela-Melendres M,Heperkan D,Bautista D,Anderson D,Hwang CA,Peña-Ramos A,Camou JP,Torrentera-Olivera Ndoi
10.1016/j.ijfoodmicro.2016.06.028subject
Has Abstractpub_date
2016-11-07 00:00:00pages
1-8eissn
0168-1605issn
1879-3460pii
S0168-1605(16)30321-Xjournal_volume
236pub_type
杂志文章abstract：:The potential enhancement of Pichia membranifaciens by ammonium molybdate (NH(4)Mo) to control blue mould caused by Penicillium expansum on peach fruit was investigated. Combining P. membranifaciens at 1x10(8) cell/ml with 1 mM NH(4)Mo provided a more effective control of blue mould rot than applying the yeast or NH(4...
journal_title：International journal of food microbiology
pub_type： 杂志文章
doi：10.1016/j.ijfoodmicro.2010.05.009
更新日期：2010-07-15 00:00:00
abstract：:Lemon juice, vinegar and the mixture of lemon juice and vinegar (1:1) were tested for their effectiveness in reducing the counts of inoculated Salmonella typhimurium (approximately 6 and 3 log cfu/g) on carrots. Treatment of carrot samples with lemon juice vinegar alone for different exposure times (0, 15, 30 and 60 m...
journal_title：International journal of food microbiology
pub_type： 杂志文章
doi：10.1016/j.ijfoodmicro.2004.04.010
更新日期：2004-11-15 00:00:00
abstract：:Realistic prediction of microbial inactivation in food requires quantitative information on variability introduced by the microorganisms. Bacillus subtilis forms heat resistant spores and in this study the impact of strain variability on spore heat resistance was quantified using 20 strains. In addition, experimental ...
journal_title：International journal of food microbiology
pub_type： 杂志文章
doi：10.1016/j.ijfoodmicro.2017.04.014
更新日期：2017-07-17 00:00:00
abstract：:The consumer's interest in ready-to-eat, fast-ready, nutritious and fresh foods is a major challenge for the food industry. Thus, studies on new sanitization methods are relevant. The effect of Sodium Hypochlorite (SH), Benzalkonium Chloride (BC), and Sodium Dichloroisocyanurate (SD) isolated or combined with Ultrasou...
journal_title：International journal of food microbiology
pub_type： 杂志文章
doi：10.1016/j.ijfoodmicro.2018.01.007
更新日期：2018-03-23 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：:In general, the genetic characteristics, the phenotype and the microbial purity of the production brewing yeast strains are among the most important factors in maintaining a consistently good quality of products. Analysis of restriction fragment length polymorphism (RFLP) patterns of 18S rRNA-coding DNA was investigat...
journal_title：International journal of food microbiology
pub_type： 杂志文章
doi：10.1016/s0168-1605(00)00356-1
更新日期：2000-12-05 00:00:00
abstract：:Twenty whole market chickens, purchased from 10 different stores in the Taipei Metropolitan area, were examined for the presence of Campylobacter jejuni and Campylobacter coli. The microorganisms were recovered from 95% of the chickens. A survey of different sites on--breast, thigh and tail--showed that contamination ...
journal_title：International journal of food microbiology
pub_type： 杂志文章
doi：10.1016/0168-1605(94)90115-5
更新日期：1994-12-01 00:00:00
abstract：:Knowledge of physiological behavior of indigenous tequila yeast used in fermentation process is still limited. Yeasts have significant impact on the productivity fermentation process as well as the sensorial characteristics of the alcoholic beverage. For these reasons a better knowledge of the physiological and metabo...
journal_title：International journal of food microbiology
pub_type： 杂志文章
doi：10.1016/j.ijfoodmicro.2011.08.008
更新日期：2011-11-15 00:00:00
abstract：:Cells from an exponential Oenococcus oeni m1 culture in a grape juice medium were inoculated into a synthetic wine medium (SW) supplemented with a protein and polypeptide fraction (PPF) of high molecular weight (higher than 12,400 Da) obtained from four varietals of Cafayate Argentinean wines. O. oeni maintains viabil...
journal_title：International journal of food microbiology
pub_type： 杂志文章
doi：10.1016/j.ijfoodmicro.2013.02.003
更新日期：2013-05-15 00:00:00
abstract：:The food processing environments of a newly opened meat processing facility were sampled in ten visits carried out during its first 1.5 years of activity and analyzed for the presence of Listeria monocytogenes. A total of 18 L. monocytogenes isolates were obtained from 229 samples, and their genomes were sequenced to ...
journal_title：International journal of food microbiology
pub_type： 杂志文章
doi：10.1016/j.ijfoodmicro.2021.109043
更新日期：2021-01-04 00:00:00
abstract：:A collaborative study involving four European laboratories was conducted to investigate the diagnostic accuracy of a Salmonella specific PCR-based method, which was evaluated within the European FOOD-PCR project (http://www.pcr.dk). Each laboratory analysed by the PCR a set of independent obtained presumably naturally...
journal_title：International journal of food microbiology
pub_type： 杂志文章
doi：10.1016/s0168-1605(03)00154-5
更新日期：2003-12-31 00:00:00
abstract：:The aims of this investigation were to enumerate coliforms in fresh mangoes, puree, cheeks, and cheeks-in-puree in order to determine the source of these organisms in the processed products, to determine methods for their control, and to identify coliforms isolated from cheeks-in-puree to determine whether they have a...
journal_title：International journal of food microbiology
pub_type： 杂志文章
doi：10.1016/0168-1605(94)00083-i
更新日期：1995-03-01 00:00:00
abstract：:Sources of contamination of vacuum-packaged vienna sausages by spoilage microorganisms were examined in a meat-processing plant. Microbial numbers present in the environment, on working surfaces and workers' hands and aprons were quantified by plate counting on selective media. Product line samples were taken at criti...
journal_title：International journal of food microbiology
pub_type： 杂志文章
doi：10.1016/0168-1605(91)90081-y
更新日期：1991-08-01 00:00:00
abstract：:Refrigerated storage is an important step in the preparation of foods and inadequate storage is one of the main causes of food poisoning outbreaks of Clostridium perfringens. Therefore, growth and germination characteristics of C. perfringens in a temperature range of 3-42 degrees C were determined in fluid thioglycol...
journal_title：International journal of food microbiology
pub_type： 杂志文章
doi：10.1016/j.ijfoodmicro.2004.03.030
更新日期：2004-12-01 00:00:00
abstract：:Lactic acid bacteria (LAB) are responsible for spoiling vacuum-packed meat products, such as ham. Since the temperature is the main factor affecting the microbial dynamic, the use of mathematical models describing the microbial behavior into a non-isothermal environment can be very useful for predicting food shelf lif...
journal_title：International journal of food microbiology
pub_type： 杂志文章
doi：10.1016/j.ijfoodmicro.2016.05.014
更新日期：2017-01-02 00:00:00
abstract：:The objectives of this study were to compare the effect of different Stevia-based sugar substitutes (S1-S3), sucrose alone and a mixture of sucrose+S1 on: (a) humectant properties, (b) relative colonisation rates of sponge cake slices at 0.90 aw by strains of Aspergillus flavus, Eurotium amstelodami, Fusarium graminea...
journal_title：International journal of food microbiology
pub_type： 杂志文章
doi：10.1016/j.ijfoodmicro.2016.04.031
更新日期：2016-08-16 00:00:00
abstract：:Hot-smoked fish like smoked trout is quite frequently contaminated with Listeria monocytogenes. In order to estimate the potential health hazard for the consumer eating such products, the behavior of L. monocytogenes was studied during processing and storage of artificially-inoculated hot-smoked trout. Four trials wer...
journal_title：International journal of food microbiology
pub_type： 杂志文章
doi：10.1016/0168-1605(92)90067-d
更新日期：1992-03-01 00:00:00
abstract：:The heat resistance of Clostridium sporogenes PA 3679 spores has been studied to establish the influence of acidification with glucono-delta-lactone (GDL) and citric acid on the thermal resistance parameters (DT and z) of this microorganism and to compare their effect with phosphate buffer and natural asparagus as ref...
journal_title：International journal of food microbiology
pub_type： 杂志文章
doi：10.1016/0168-1605(94)00094-m
更新日期：1995-04-01 00:00:00
abstract：:The aims of this study were to investigate the serotype distribution, genetic relationships and antibiotic resistance of Salmonella from food-producing animals in Shandong province of China in 2009 and 2012. A total of 362 out of 1825 samples from chickens, 53 out of 445 samples from ducks, and 50 out of 692 samples f...
journal_title：International journal of food microbiology
pub_type： 杂志文章
doi：10.1016/j.ijfoodmicro.2014.03.030
更新日期：2014-06-16 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：:Hepatitis A is a worldwide infectious disease. Shellfish consumption has always been one of the major risk factors for hepatitis A infection, especially when these products are eaten raw or slightly cooked. Moreover, the cooking does not always guarantee the harmlessness of shellfish. The aim of the present study was ...
journal_title：International journal of food microbiology
pub_type： 杂志文章
doi：10.1016/j.ijfoodmicro.2005.04.008
更新日期：2005-11-25 00:00:00
abstract：:The aim of this study was to monitor the presence of Shiga toxin (Stx)-producing Escherichia coli in dairy farms authorized to sell raw milk and other farms, located in the same area, which sell milk to industry or use it to produce Parmesan or Grana cheese. Our research was focused on the serogroups O157 and O26, whi...
journal_title：International journal of food microbiology
pub_type： 杂志文章
doi：10.1016/j.ijfoodmicro.2013.12.033
更新日期：2014-08-01 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：:The reduction of NaCl in food is a public health priority; high NaCl intakes have been associated with serious health problems. However, it is reported that reducing the NaCl content of cheeses may lead to an increase in the content of biogenic amines (BAs). The present work examines the effect of NaCl on the accumula...
journal_title：International journal of food microbiology
pub_type： 杂志文章
doi：10.1016/j.ijfoodmicro.2016.05.010
更新日期：2016-09-02 00:00:00
abstract：:This paper investigates the in vitro antimicrobial potential of 15 grape phenolic compounds of various chemical classes (phenolic acids, stilbenes and flavonoids) using the broth microdilution method against yeasts and acetic acid bacteria frequently occurring in deteriorated wine. Pterostilbene (MICs=32-128 μg/mL), r...
journal_title：International journal of food microbiology
pub_type： 杂志文章
doi：10.1016/j.ijfoodmicro.2012.12.018
更新日期：2013-02-15 00:00:00
abstract：:The antimicrobial effects of spices and herbs from 18 plant species were examined on a foodborne pathogen, Vibrio parahaemolyticus, with the use of combinations of temperatures and nutrient levels. Basil, clove, garlic, horseradish, marjoram, oregano, rosemary, and thyme exhibited antibacterial activities at incubatio...
journal_title：International journal of food microbiology
pub_type： 杂志文章
doi：10.1016/j.ijfoodmicro.2006.04.031
更新日期：2006-08-15 00:00:00
abstract：:The food industry, under the regulation of the Department of Agriculture and Food (DAF) in the Republic of Ireland, is required to undertake all microbiological testing in relation to zoonoses control, in laboratories approved by DAF. These laboratories submit a monthly report of all tests undertaken, together with al...
journal_title：International journal of food microbiology
pub_type： 杂志文章
doi：10.1016/j.ijfoodmicro.2006.05.013
更新日期：2006-10-15 00:00:00
abstract：:Some soft fruit, such as tree-ripened apricots, cannot be washed with aqueous sanitizers, due to their innate softness and delicate surfaces. In this study, ultraviolet-C (UV-C) light was investigated for its efficacy in inactivating 4-5 individual strains of Escherichia coli O157:H7 and Salmonella spp. on apricots, i...
journal_title：International journal of food microbiology
pub_type： 杂志文章
doi：10.1016/j.ijfoodmicro.2013.07.021
更新日期：2013-09-16 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：:Q fever is a bacterial zoonosis caused by Coxiella burnetii whose main reservoir are small ruminants. Infected animals shed the bacteria into the environment through the products of abortion as well as through feces, urine, and milk. Susceptible people are mainly infected by the inhalation of contaminated aerosols, wh...
journal_title：International journal of food microbiology
pub_type： 杂志文章
doi：10.1016/j.ijfoodmicro.2019.05.010
更新日期：2019-08-16 00:00:00
