TY - CHAP
T1 - Kinetic Study and Photoreactivation of Waterborne Fungal Spores Under Ultraviolet Light
AU - Duque Sarango, Paola
AU - Delgado Armijos, Nicole
AU - Romero Martínez, Leonardo
AU - Pinos Vélez, Verónica Patricia
N1 - Publisher Copyright:
© The Author(s), under exclusive license to Springer Nature Switzerland AG 2025.
PY - 2025/6/28
Y1 - 2025/6/28
N2 - In recent years, disinfection by ultraviolet (UV) light has been the subject of increasing interest, especially in relation to its efficacy against bacteria. However, its impact on fungi has been much less explored. In this study, we focused on investigating how two types of filamentous fungi react to exposure to UV inactivation, using a continuous flow ultraviolet light reactor (FTR-UV) containing a low-pressure mercury lamp. Our main objective was to understand the inactivation and reactivation characteristics of these fungi. To carry out the study, we suspended Aspergillus niger and Penicillium sp. spores in distilled water adjusted to a pH of 7.20 and exposed them to different doses of UV radiation as they passed through the reactor. Subsequently, we analysed the effects of inactivation and possible reactivation of the spores over a 24-h period, under both light and dark conditions. This approach allowed us to obtain detailed data on the efficacy of UV light in inactivating these fungi and to assess the conditions under which they might reactivate, providing a more complete picture of the potential of UV disinfection in the control of filamentous fungi.
AB - In recent years, disinfection by ultraviolet (UV) light has been the subject of increasing interest, especially in relation to its efficacy against bacteria. However, its impact on fungi has been much less explored. In this study, we focused on investigating how two types of filamentous fungi react to exposure to UV inactivation, using a continuous flow ultraviolet light reactor (FTR-UV) containing a low-pressure mercury lamp. Our main objective was to understand the inactivation and reactivation characteristics of these fungi. To carry out the study, we suspended Aspergillus niger and Penicillium sp. spores in distilled water adjusted to a pH of 7.20 and exposed them to different doses of UV radiation as they passed through the reactor. Subsequently, we analysed the effects of inactivation and possible reactivation of the spores over a 24-h period, under both light and dark conditions. This approach allowed us to obtain detailed data on the efficacy of UV light in inactivating these fungi and to assess the conditions under which they might reactivate, providing a more complete picture of the potential of UV disinfection in the control of filamentous fungi.
KW - Aspergillus sp.
KW - Flow-through UV reactor
KW - Penicillium sp.
KW - Photoreactivation
KW - Ultraviolet disinfection
KW - Waterborne fungal spores
KW - Aspergillus sp
KW - Flow-through UV reactor
KW - Penicillium sp
KW - Photoreactivation
KW - Ultraviolet disinfection
KW - Waterborne fungal spores
UR - https://www.scopus.com/pages/publications/105010258458
UR - https://link.springer.com/chapter/10.1007/978-3-031-81817-2_11
U2 - 10.1007/978-3-031-81817-2_11
DO - 10.1007/978-3-031-81817-2_11
M3 - Capítulo
AN - SCOPUS:105010258458
T3 - Springer Water
SP - 129
EP - 137
BT - Proceedings of the 4th International Conference (ICoWEFS 2024)
PB - Springer Nature
ER -