The survival of micromycetes and yeasts under the low-temperature plasma generated in electrical discharge

Abstract

The fungicidal effect of low-temperature plasma generated by positive direct current discharge and its influence on the growth dynamics was evaluated on three micromycete species and yeast in water suspensions. The fungicidal effect was lower than analogous bactericidal effect and differs substantially among various fungal species. Together with the cidal effects, the slower growth of exposed fungal spores was observed.

Inactivation of possible microorganism food contaminants on packaging foils using nonthermal plasma and hydrogen peroxide

“…This method with hydrogen peroxide is due to its low concentration applicable in the major cases of packaging into plastic materials. It is worth to mention that, as in our previous works [4], the grow retardation for exposed micromycetes was observed. While in the case of bacteria and yeasts there was observed no difference in the speed of microorganisms growing, in the case of filamentous fungi, the exposed samples grow significantly slower.…”

“…Inhibition zones of C. albicans appeared on incubated agar plates for control sample (top left) and samples exposed to the discharge in hydrogen peroxide atmosphere for 5, 10, and 20 s. 4. CONCLUSIONS The inactivation effect of nonthermal plasma generated in a discharge burning in air atmosphere with hydrogen peroxide aerosol for the application to the microbial decontamination of cellophane foils has been studied.…”

“…There is a lot of works describing the biological effects of nonthermal plasma, devoted mainly to the killing of prokaryotic bacteria or various applications in human medicine (see, e.g., reviews [1,2] or other studies, e.g., [3][4][5]). The plasma treatment may be also applicable for the treatment of food surface or food packages, preventing the mould overgrow and food spoilage, or for the decontamination of other thermolabile materials.…”

Non‐thermal plasma‐induced apoptosis in yeast Saccharomyces cerevisiae

“… should be mentioned; effects of plasma on bacteria in biofilms were described in ref. []; inactivation of fungi including yeasts is more difficult but feasible ; and inactivation of prions was also described in refs. .…”

Treatment of a Superficial Mycosis by Low-temperature Plasma: A Case Report

“…The medical applications include mainly decontamination, disinfection and sterilization of various surfaces and liquids, studies concerning the chronic wound healing (Isbary et al, 2013b) or cancer treatment (Schlegel et al, 2013) also appeared. The microbicidal effect of plasma was studied mainly on bacteria, but suppression of fungi (yeasts and moulds) in vitro was also reported (Scholtz, 2005;Julák et al, 2011;Soušková et al, 2011Soušková et al, , 2012Sláma et al, 2013).…”