Comparison of fungicidal properties of non-thermal plasma produced by corona discharge and dielectric barrier discharge
| Autor: | Jaroslav Julák, Eva Kvasničková, Hana Soušková, Vladimír Scholtz, Vítězslav Kříha, D. Savická |
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| Rok vydání: | 2016 |
| Předmět: |
food.ingredient
Antifungal Agents Plasma Gases Dielectric barrier discharge Nonthermal plasma 01 natural sciences Microbiology 010305 fluids & plasmas food Aspergillus oryzae 0103 physical sciences Agar Corona discharge 010302 applied physics Chromatography Microbial Viability biology Chemistry Fungi General Medicine Plasma Spores Fungal biology.organism_classification Spore Fungicide |
| Zdroj: | Folia microbiologica. 63(1) |
| ISSN: | 1874-9356 |
| Popis: | The inactivation of four micromycete species by action of non-thermal plasma was followed. Two sources of plasma were compared, namely, positive corona discharge and dielectric barrier discharge. The corona discharge appeared as suitable for fungal spore inactivation in water suspension, whereas the barrier discharge inactivated spores on the surface of cultivation agar. Cladosporium sphaerospermum was the most sensitive, being inactivated within 10 min of exposure to plasma, whereas Aspergillus oryzae displayed decrease in viable cell count only, the complete inactivation was not achieved even after 40 min of exposure. Intermediate sensitivity was found for Alternaria sp. and Byssochlamys nivea. The significant delay of growth was observed for all fungi after exposure to sublethal dose of plasma, but we failed to express this effect quantitatively. |
| Databáze: | OpenAIRE |
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