Basis of predictive mycology

University of Burgundy, Dijon, Bourgogne, France
International Journal of Food Microbiology (Impact Factor: 3.08). 05/2005; 100(1-3):187-96. DOI: 10.1016/j.ijfoodmicro.2004.10.013
Source: PubMed

ABSTRACT For over 20 years, predictive microbiology focused on food-pathogenic bacteria. Few studies concerned modelling fungal development. On one hand, most of food mycologists are not familiar with modelling techniques; on the other hand, people involved in modelling are developing tools dedicated to bacteria. Therefore, there is a tendency to extend the use of models that were developed for bacteria to moulds. However, some mould specificities should be taken into account. The use of specific models for predicting germination and growth of fungi was advocated previously []. This paper provides a short review of fungal modelling studies.

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Available from: Philippe Dantigny, Sep 29, 2015
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    • "Secondary models normally used for modeling growth parameters of bacteria have been used for parameters of moulds (Dantigny et al. 2005), like the Square Root and Arrhenius-Davey models. The dependence of µ max and λ parameters on the temperature were described by the Square Root model (Ratkowsky et al. 1982) "
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    ABSTRACT: The aim of this study was to establish primary and secondary models to describe the growth kinetics of Byssochlamys fulva on solidified apple juice at different temperatures. B. fulva was inoculated on solidified apple juice at 10, 15, 20, 25 and 30 °C. Linear-with-breakpoint, Baranyi and Roberts, and Huang primary models (without upper asymptote) were fitted to the data, and they showed good ability to describe the growth kinetics. B. fulva showed longer adaptation time on apple juice than on culture medium, but growth rates were similar as reported in the literature. The dependence of µmax and λ parameters on temperature was described with Square Root and Arrhenius-Davey secondary models, respectively. These models were important to establish process/storage conditions and apple juice shelf life.
    Brazilian Archives of Biology and Technology 08/2014; 57(6):971-978. DOI:10.1590/S1516-8913201402619 · 0.55 Impact Factor
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    • "Many available data confirm high biocompatibility of silica nanotubes with human cells, especially at lower concentrations (0.05–0.005 μg/ml) (Dantigny et al. 2005). Likewise, TiO2 alone has no effect on cell proliferation, but it becomes cytotoxic after UV irradiation (Nan et al. 2008; Kubota et al. 1994). "
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    ABSTRACT: In this paper, we study synthesis and characteristics of mesoporous silica nanotubes modified by titanium dioxide, as well as their antimicrobial properties and influence on mitochondrial activity of mouse fibroblast L929. Nanocrystalized titania is confined in mesopores of silica nanotubes and its light activated antibacterial response is revealed. The analysis of the antibacterial effect on Escherichia coli. (ATCC 25922) shows strong enhancement during irradiation with the artificial visible and ultraviolet light in respect to the commercial catalyst and control sample free from the nanomaterials. In darkness, the mesoporous silica/titania nanostructures exhibited antibacterial activity dependent on the stirring speed of the suspension containing nanomaterials. Obtained micrograph proved internalization of the sample into the microorganism trough the cell membrane. The analysis of the mitochondrial activity and amount of lactate dehydrogenase released from mouse fibroblast cells L929 in the presence of the sample were determined with LDH and WST1 assays, respectively. The synthesized silica/titania antibacterial agent also exhibits pronounced photoinduced inactivation of the bacterial growth under the artificial visible and UV light irritation in respect to the commercial catalyst. Additionally, mesoporous silica/titania nanotubes were characterized in details by means of high resolution transmission electron microscopy (HR-TEM), XRD and BET Isotherm. Electronic supplementary material The online version of this article (doi:10.1007/s10544-014-9847-3) contains supplementary material, which is available to authorized users.
    Biomedical Microdevices 03/2014; 16(3). DOI:10.1007/s10544-014-9847-3 · 2.88 Impact Factor
    • "e, które są zdolne do wzrostu w warunkach aktywności wody poniżej a w 0,85. Penicillium chrysogenum i Eurotium herbariorum są jednymi z najważniejszych grzybów odpowiedzialnych za psucie się żywności o niskiej wilgotności, przy czym P. chrysogenum to jedyny grzyb, oprócz Aspergillus flavus, zdolny do wzrostu w warunkach aktywności wody a w < 0,80 (Dantigny i in. 2005). Należy zwrócić uwagę, że grzyby dominujące w badanych próbkach nasion rzepaku zdolne są do wytwarzania mykotoksyn. Szczepy E. herbariorum syntetyzują patulinę, sterygmatocystynę, echinulinę, kladosporynę, neoechinulinę A i B, flawoglaucynę, auroglaucynę, fyscion, izotetrahydroglaucynę, epiheweadryd (Al-Julaifi i in. 1996; Krikštaponis"
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    ABSTRACT: The aim of study was estimated of qualitative and quantitative composition of fungi in rapeseed on RBA, YpSs, DG18 medium at 25, 37, 45ºC. Material was 18 samples of rapeseed. The most amount of fungi were isolated on RBA at 25ºC (28), next xerophilic species (23) on DG 18 at 25 o C and mesophilic (19) and thermophilic species (8) on YpSs medium at 37º and 45ºC, respectively. The predominant species were Penicillium chrysogenum and Eurotium herbariorum. From rapeseed 162 strains belonging to 41 species were isolated. This study enriched rapeseed mycobiota about 25 species and genus of fungi in comparison to date from available literature. Słowa kluczowe: gatunki grzybów, nasiona rzepaku.
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