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International Journal of Food Microbiology
journal homepage: www.elsevier.com/locate/ijfoodmicro
‘MicroHibro’:Asoftwaretoolforpredictivemicrobiologyandmicrobialrisk
assessment in foods
Salvador Cubero González, Arícia Possas, Elena Carrasco, Antonio Valero, Araceli Bolívar,
Guiomar Denisse Posada-Izquierdo, Rosa Maria García-Gimeno, Gonzalo Zurera,
Fernando Pérez-Rodríguez
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Department of Food Science and Technology, Faculty of Veterinary, Agrifood Campus of International Excellence (ceiA3), University of Cordoba, 14014, Córdoba, Spain
ARTICLEINFO
Keywords:
Sensitivity analysis
Stochastic model
Foodborne pathogens
Software
Probability distribution
Dose-response model
ABSTRACT
Atoolabletoquantitativelyassessthefateofpotentialpathogenicmicroorganismsinfoodsalongthefoodchain
andtheirimpactonpublichealthishighlyvaluableforfoodsafetydecision-makers.Theaimofthisworkwasto
presentanoverviewofthePredictiveMicrobiologysoftwareMicroHibro,whichisabletoassesstheevolutionof
potential pathogens and spoilage microorganisms along the food chain, providing estimates for the exposure
level and risk associated with a food product. The application is built on an extensive Predictive Microbiology
ModelDataBase(PMDB)includingkineticprocesseslikegrowth,inactivation,transferaswellasdose-response
models.PMDBcanbepopulatedwithnewmodelsbyusinganon-linetoolincombinationwithastandardized
methodfordescribingPredictiveMicrobiologymodels.ThisenablesMicroHibrotobeeasilyupdated,increasing
its applicability and use. Estimation of microbial risk associated with a food product can be achieved, in
MicroHibro,bydescribingstepsinanyfoodchainusingfourdifferentmicrobialprocesses(growth,inactivation,
transferandpartitioning).Asaresult,anestimateoftheconcentrationandprevalenceofmicroorganismsinthe
food of interest as well as attendant risk are provided. Also, MicroHibro allows comparing different predictive
models and validate them by introducing user's data. In this paper, examples are provided to illustrate how
predictive models can be incorporated in MicroHibro, and then, used to develop a Quantitative Microbial Risk
Assessment model. The use of expert computational systems is a powerful tool for supporting food safety and
qualityactivitiesbyHealthAuthoritiesandthefoodindustry.Theyrepresentabreakthroughintheassessment
and management of food safety based on scientific evidence.
1. Introduction
The increasing awareness on the need of strengthening micro-
biological food safety is one of the major challenges for the globalized
foodsector(Ercsey-Ravasz et al., 2012; Fungetal.,2018).Foodsafety
riskmanagementhasbeenadoptedbyfoodindustriesasapartoftheir
official control system throughout the production chain (Codex
Alimentarius, 2007). End-product testing based on a hazard-based ap-
proachhasalreadybeencataloguedasinefficientasitdoesnotprovide
inmanycasesquantitativeinformationaboutthesanitaryconditionsof
a given food product. Moving to a (quantitative) risk-based approach
(i.e. estimation of the probability that a hazard is present in a food
commodity)requirestheevaluationofgeneratedknowledge(statistical
and computational methods) and interpretation of results through the
development and application of resources (databases and software
tools) readily available to be used by the food safety community, in-
cluding risk assessors and managers, food operators or research in-
stitutions (Membré and Guillou, 2016).
Predictive food microbiology is a scientific field intended to study the
microbial behaviour in food environments, including the development of
mathematical models that can be deployed to perform predictions under
certain specific conditions (Pérez-Rodríguez and Valero, 2013). The appli-
cation of the knowledge generated in predictive microbiology has been
mainly focused on the quantification of the bacterial behaviour in culture
media and foods under certain environmental conditions. The kinetic
parameters estimated from mathematical equations (i.e. maximum specific
growth rate, lag time, inactivation rate, etc.) have been used to describe
growth,inactivation,survivalorprobabilityofgrowthofseveralpathogens
and/orspoilersinawiderangeoffoods.Theseoutcomesarecompiledina
series of published books/briefs (i.e. Brul et al., 2007; McMeekin et al.,
https://doi.org/10.1016/j.ijfoodmicro.2018.10.007
Received 30 July 2018; Received in revised form 1 October 2018; Accepted 5 October 2018
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Correspondingauthorat:DepartmentofFoodScienceandTechnology,UniversityofCordoba,Edif.Darwin-anexo(C1),CampusdeRabanaless/n,Crta,Madrid-
Cádiz Km 396A, 14014, Córdoba, Spain.
E-mail address: b42perof@uco.es (F. Pérez-Rodríguez).
International Journal of Food Microbiology 290 (2019) 226–236
Available online 10 October 2018
0168-1605/ © 2018 Elsevier B.V. All rights reserved.
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