Modeling of mold inactivation via cold atmospheric plasma (CAP)

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21110%2F25%3A00383082" target="_blank" >RIV/68407700:21110/25:00383082 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/60461373:22340/25:43931964

Výsledek na webu

<a href="https://doi.org/10.1128/aem.02102-24" target="_blank" >https://doi.org/10.1128/aem.02102-24</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1128/aem.02102-24" target="_blank" >10.1128/aem.02102-24</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Modeling of mold inactivation via cold atmospheric plasma (CAP)

Popis výsledku v původním jazyce

During their reproduction cycles, the omnipresent pathogens produce a broad class of mycotoxins responsible for serious health problems in living organisms. To reduce (or even to eradicate) the microorganisms from the invaded system, various conventional methods are applied in practice, sometimes with counterproductive effects. To overcome these challenges, the cold atmospheric plasma (CAP) is applied to terminate mold proliferation within the system. The paper presents a mathematical model for the elimination of microscopic filamentous types of fungi, specifically molds, by using the CAP. The evolution of mold population is described by a nonlinear logistic equation with a density-dependent inactivation rate. Exactly calculated growth curves are compared with experimental data for Aspergillus brasiliensis obtained for two plasma operating times. The results show that if the plasma inactivation rate is comparable to the maximum natural growth rate of the mycelium, the mold colony becomes extinct after a finite time. Otherwise, the mycelium may survive the plasma intervention. The model presented in the paper can be applied to other classes of microorganisms (e.g., bacteria and viruses), using different inactivation techniques (e.g., heating or high pressures with properly defined inactivation rates).

Název v anglickém jazyce

Modeling of mold inactivation via cold atmospheric plasma (CAP)

Popis výsledku anglicky

During their reproduction cycles, the omnipresent pathogens produce a broad class of mycotoxins responsible for serious health problems in living organisms. To reduce (or even to eradicate) the microorganisms from the invaded system, various conventional methods are applied in practice, sometimes with counterproductive effects. To overcome these challenges, the cold atmospheric plasma (CAP) is applied to terminate mold proliferation within the system. The paper presents a mathematical model for the elimination of microscopic filamentous types of fungi, specifically molds, by using the CAP. The evolution of mold population is described by a nonlinear logistic equation with a density-dependent inactivation rate. Exactly calculated growth curves are compared with experimental data for Aspergillus brasiliensis obtained for two plasma operating times. The results show that if the plasma inactivation rate is comparable to the maximum natural growth rate of the mycelium, the mold colony becomes extinct after a finite time. Otherwise, the mycelium may survive the plasma intervention. The model presented in the paper can be applied to other classes of microorganisms (e.g., bacteria and viruses), using different inactivation techniques (e.g., heating or high pressures with properly defined inactivation rates).

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

20101 - Civil engineering

Projekt

<a href="/cs/project/GA22-06621S" target="_blank" >GA22-06621S: Inaktivace růstu plísní na površích stavebních materiálů pomocí nízkoteplotního atmosférického plazmatu</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2025

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Applied and Environmental Microbiology

ISSN

0099-2240

e-ISSN

1098-5336

Svazek periodika

91

Číslo periodika v rámci svazku

5

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

8

Strana od-do

1-8

Kód UT WoS článku

001458886700001

EID výsledku v databázi Scopus

2-s2.0-105006627697