Fungicidal Effects of Ultraviolet Light (254 nm) Irradiation on Contaminated Museum Packing and Storing Materials

El-Amin, Abdel-Rahman; Takatori, Kosuke; Matsuda, Yasunori; Tsukada, Masahiko; Kirino, Fumiyoshi

doi:10.4265/bio.23.177

“…25 When investigating the impact of UV radiation on Penicillium commune and Chaetomium globosum present on historical tissue paper, the minimum dose of UV irradiation required to achieve fungicidal efficacy against all fungal contamination was estimated to be 118 J cm −2 . 29 To achieve fungal spore inactivation, UV radiation doses typically range from 500 to 36 000 J m −2 when sterilizing ow boxes. When sterilizing surfaces during operations, the dose typically falls within the range of 3000 to 20 000 J m −2 .…”

Section: Introductionmentioning

confidence: 99%

“… 25 When investigating the impact of UV radiation on Penicillium commune and Chaetomium globosum present on historical tissue paper, the minimum dose of UV irradiation required to achieve fungicidal efficacy against all fungal contamination was estimated to be 118 J cm −2 . 29 …”

Section: Introductionmentioning

confidence: 99%

Comparative assessment of UV-C radiation and non-thermal plasma for inactivation of foodborne fungal spores suspension in vitro

Kulišová,

Rabochová,

Lorinčík

et al. 2024

RSC Adv.

1

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Analyzing the Effects of Monochromatic Lights on the Fungal Growth to Control the Progression of Microbial Deterioration on Animal Collections Preserved in the Zoological Museum of Naples, Italy

Bellia,

Birolo,

Casillo

et al. 2024

LEUKOS

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Effects of antioxidants on in vitro growth of Thecaphora frezzii

Figueroa,

Díaz,

Turco

et al. 2024

Journal of Applied Microbiology

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Aims Thecaphora frezzii, the causal agent of peanut smut, causes significant grain losses in Argentina. Current control strategies are insufficient to manage this pathogen. We investigate the effect of antioxidants on the in vitro development of T. frezzii hyphae, to identify compounds with antifungal activity, also evaluate protein and lipid profiles as potential targets for these compounds. Methods and Results The antifungal activity was evaluated in both, solid and liquid media, and MIC and MFC were calculated. The protein profile was assessed using SDS-PAGE, while lipids were analyzed by TLC and GC-FID, both before and after hyphal treatment. Lipase activity was analyzed using agar Tween 20 and TLC, while lipid peroxidation was evaluated by the TBARS method. Microscopy was used to observe morphological and metabolic changes. Butylated hydroxyanisole, methylparaben, and lipoic acid showed inhibitory effects on T. frezzii. Lipoic acid was chosen for further study due to its lack of environmental toxicity. Lipoic acid induced the loss of cytosolic proteins, hydrolysis of triglycerides, and increased levels of free fatty acids, monoacylglycerols, and diacylglycerols. It also caused a decrease in ergosterol levels and alterations in the fungal cell wall and membrane, ultimately leading to cell death. Conclusions This study demonstrates the efficacy of lipoic acid in inhibiting the in vitro development of T. frezzii.

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Fungicidal Effects of Ultraviolet Light (254 nm) Irradiation on Contaminated Museum Packing and Storing Materials

Cited by 4 publications

References 16 publications

Comparative assessment of UV-C radiation and non-thermal plasma for inactivation of foodborne fungal spores suspension in vitro

Comparative assessment of UV-C radiation and non-thermal plasma for inactivation of foodborne fungal spores suspension in vitro

Analyzing the Effects of Monochromatic Lights on the Fungal Growth to Control the Progression of Microbial Deterioration on Animal Collections Preserved in the Zoological Museum of Naples, Italy

Effects of antioxidants on in vitro growth of Thecaphora frezzii

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